Anterior compartment syndrome or chronic exertional compartment syndrome is a problem with the muscle on the front of the leg (the anterior tibial muscle or tibialis anterior muscle) trying to expand during exercise when the fascia around the muscle is too tight and the muscle can not expand. This can become painful and is one of the causes of that term, “shin splints”.
The treatment options in the past were often limited and a surgical release of the tight fascia around the muscle was usually the better definitive treatment.
However, we now have this study on anterior compartment syndrome that shows it is good option to change from heel striking to forefoot striking to help this condition. From all reports it works pretty well and the rationale for it is sound. While this might be a good idea for anterior compartment syndrome, it would not be a good idea for other types of running injuries such as achilles tendon issues. The transition from rearfoot or heel striking to a midfoot or forefoot strike pattern needs to be slow to allow for the tissues to adapt to the loads.
What running shoes should be used for anterior compartment syndrome?
There is no specific shoes for runners with anterior compartment syndrome. There will be many personal preferences here, but it comes down to does the shoe allow or facilitate forefoot striking? A lower drop shoe will help with that. Less cushioning under the heel will help do that. The type or model of shoe is not particularly important in this case, its the running technique and the touch down angle that is important. That can be achieved in any type of running shoe.
The list has been compiled following introduction of the requirement on 31 January 2020 that any new shoe that an athlete proposes to wear in international competitions needed to be assessed by World Athletics.
The list does not contain every shoe ever worn by an athlete but it does include some older models of shoes that manufacturers sent to World Athletics for assessment by its independent expert. The position with older shoes that are not on the list is that they still need to comply with the rule going forward. The athlete, or their representative, will need to ensure their older shoe complies with Rule 5.13 in terms of the maximum sole thicknesses for their specified event and any inserted plate or blade, including spike plates if relevant.
Under Rule 5 of the Technical Rules, athletes (or their representative) have the responsibility to provide World Athletics with specifications of the new shoes the athlete proposes to wear in competition. World Athletics accepts shoe specification and samples submitted by manufacturers for further examination.
If there is doubt about a shoe (particularly shoes that no other athlete has) then athletes, officials and meeting organisers should first refer to the approved list.
If the competition referee has a reasonable suspicion that a shoe worn by an athlete might not comply with the rules then at the conclusion of the competition the referee may request the shoe be handed over for further investigation by World Athletics.
The list of approved shoes will be updated regularly to reflect any new information received.
“Transitioning rules is never easy but is significantly harder with the current pandemic and the challenges we all face in staging, competing and providing kit and equipment during this time. We will continue to communicate, clarify and explain the rules and would like to thank our athletes, Member Federations, meeting organisers, shoe companies and technical officials for working with us to ensure the rules are understood and adhered to and, when this is not possible, that we resolve issues quickly, consistently and compassionately within the framework of the rules,” said World Athletics CEO, Jon Ridgeon.
MIZUNO ENERZY was created with the purpose of improving the performance benefits of Mizuno footwear through new advanced materials, delivering greater rebound and increased softness. Athletes will now be able to retain more of the energy they put in without sacrificing on overall comfort. “We recognize not only what athletes want, but also require in their training – no matter their sport. We know performance, energy return and comfort are all equally important, so we are constantly engineering new technologies aided to support this,” said Tomohiro Ota, Chief Marketing Officer, Mizuno USA. “This is why, as a brand, we work extremely hard to constantly create high-quality sports gear and remain dedicated to finding new ways to enhance athlete’s capabilities by staying at the forefront of sports innovation to deliver the most premium performance materials in the market.” Athletes will be able to experience the difference MIZUNO ENERZY offers in two different iterations, MIZUNO ENERZY(FOAM) and MIZUNO ENERZY CORE. Each iteration has been engineered to provide athletes with enhanced performance capabilities through the unique features offered in the form of its versatility to change shape and increased rebound potential. MIZUNO ENERZY will be used in footwear products across multiple Mizuno sporting categories. The first introduction of MIZUNO ENERZY will be available in July 2020 in “THE MIZUNO ENERZY” signature shoe, which will provide the softest cushion and highest energy return ratio in Mizuno history. “THE MIZUNO ENERZY” will be available to purchase on July 1st in a limited quantity of three hundred pairs at www.MizunoUSA.com.
MIZUNO WAVE: Wave sets the standard for running shoe technologies.
Mizuno's only Full Length Infinity Wave Plate: The next level of Wave technology with a more visible and effective construction. The ultimate Wave features unrivaled cushioning and improved durability by absorbing and dispersing the impact at foot strike
AIRmesh Upper: Air Mesh Upper for superior feel, breathability, and comfort.
U4icX Strobel Lasting Board means extra cushioning even under the sockliner to ensure a comfortable underfoot feel
Dynamotion Fit Technology relieves the stress the foot naturally places on footwear - eliminating distortion for the perfect fit.
PHILADELPHIA – Running is one of the most popular forms of exercise, enjoyed by a broad range of age groups and skill levels. More women are running recreationally compared to men; specifically 54% of runners are female as indicated by a 2018 National Runner Survey. Women, however, are at least twice as likely as men to develop stress fractures, an injury that impacts around 20% of runners. However, information is still lacking on how to best prevent and treat stress fractures in women. New pilot research from Jefferson suggests physiological factors that could be included in routine screening for stress fracture risk, as well as changes in training approach to aid in prevention.
The researchers examined physiological differences that might contribute to increased risk of stress fractures in a study published in Sports Healthand also surveyed women’s perception of risk and behaviors that contribute to stress fractures in a separate study published in Physical Therapy in Sport.
“Most of the literature focuses on elite runners or athletes,” says Therese Johnston, PT, PhD, MBA, Professor in the Department of Physical Therapy and first author of both studies. “It was important for us to capture the regular or average female runner in these studies, and the main goal was to see how we can prevent a first or subsequent fracture.”
Both studies surveyed the same group of 40 female recreational runners, age 18-65 years. 20 women had a history of running-related stress fractures, and they were matched according to age and running abilities with 20 women with no history of stress fractures. The two studies aimed to assess what contributed to risk of stress fractures, from the physiological, such as – bone structure and density, muscle mass, hormonal status, to ones influenced by training routine, such as training intensity, nutrition, insufficient strengthening, and ignoring pain.
“This mixed methods approach provides a richer context and a more detailed picture of the practices and risks that contribute to stress fractures in every-day women runners,” says Jeremy Close, MD, associate professor in family and sports medicine and one of the lead authors on the research. “It also tells us how perceived risk informs physiological risk.”
For the study focused on physiological factors, the subjects underwent a comprehensive blood panel that examined levels of hormones like estradiol and testosterone, vitamins and minerals important for bone health such as vitamin D and calcium, and bone markers. They also underwent dual energy x-ray absorptiometry (DXA) to test for bone mineral density. The researchers found that while there was no difference in estradiol hormone levels between the two groups, women who had a stress fracture history reported menstrual changes or irregular periods as a result of their training, or during peak training times. The blood panel also examined markers for bone formation and resorption, and pointed to increased bone turnover in the group of women with stress fractures. They also found through the DXA testing that women with a history of stress fractures had lower hip bone mineral density compared to women with no history of stress fractures, indicating decreased bone strength that could increase risk of injury.
“DXA for bone density and blood testing for bone markers are not routinely performed in this population – they are usually reserved for post-menopausal women – so we may be missing important clinical indicators for stress fractures in these women,” says Dr. Johnston. “While the link between menstrual changes and bone strength is unclear, our findings also indicate that asking female runners about any menstrual irregularities during heavier training times is important during routine screening.”
For the study investigating women’s self-perception of risk, interviews were conducted with the goals of finding out which factors women thought were associated with stress fractures or maintaining bone health while running. Several themes emerged from these interviews. Specifically, compared to women without stress fractures, women with histories of stress fractures had increased their training load more quickly. Also, while they knew of the importance of nutrition and strengthening exercises, women with a history of stress fracture more often reported not having or making the time for a balanced diet and proper cross-training to complement their running regimen.
Finally, women in this group reported pushing through the pain and running despite an injury more often than those without stress fracture. “In the interviews, it sounded like these women had trouble knowing which pain was normal, and which pain was abnormal. They also reported not always receiving appropriate guidance from healthcare providers on how to progress running safely,” says Dr. Johnston.
“It is clear that there needs to be more guidance from healthcare providers for woman runners on how to prevent stress fractures” says Dr. Close. “It can be very frustrating for these women who are on a path to wellness, but are impeded by an injury that can take several months to heal. If they don’t have the proper guidance on how to return to running safely, they risk a second injury.”
“We hope that our findings will encourage more thorough and routine screening in women runners for bone density and strength,” says Dr. Johnston, “as well as a comprehensive education plan on how to balance running with cross-training, and how to interpret pain cues from the body, to help women differentiate between normal aches and pains and indicators of a serious injury.”
Dr. Johnston plans to continue this research by studying women with acute stress fractures as they start running again, in order to identify factors related to successful or unsuccessful return to running following a stress fracture. The study will include Dr. Close as well as Marc Harwood, MD, service chief in the department of non-operative sports medicine at Rothman Orthopaedic Institute.
The work was funded by the Thomas Jefferson University Office of the Provost. The authors report no conflict of interest
The ExoArmor Superlight Walking Boot is ideal for a stress fracture, sprained ankle, broken foot or broken toe. It features an ultralight design and an inflatable air cushion for the perfect balance of comfort and orthopedic support.
Superlight Weight - The lightweight polypropylene design reduces walking fatigue. Competitive walker boots are often constructed of heavy materials like steel and nylon. If you compare the weight of our design to our competitors you'll see the difference. Some competitors don't even publish the weight of their products.
Easy to Put On and Take Off - Our product was designed to easily slide onto and off of your foot. You won't need to solve a puzzle or participate in a wrestling match to wear our walking boot.
Superior Support and Comfort - The inflatable air cushion allows the wearer to customize the fit to their foot. Our high-tech sole features: 1) an air pillow in the heel for extra cushioning, 2) a two pattern super-grip tread, and 3) a rounded "rocker" shape to make walking easier.
Wide Range of Sizes - Small (Men 4-7 & Women 6-8), Medium (Men 7-10 & Women 8-11) Large (Men 10-12 & Women 11-13), and X-Large (Men 12 and up & Women 13 and up). If you are between sizes we recommend you buy the larger size. Universal design – will fit either left or right foot.
The Seal of Acceptance Further Establishes the Brand as a Leader and Innovator in the Footwear Industry
BRAINTREE, Mass., Aug. 11, 2020 /PRNewswire/ — OOFOS, the global leader in recovery footwear, announces today its full line of products has earned the American Podiatric Medical Association (APMA) Seal of Acceptance, further solidifying them as a pioneer and leader within the recovery footwear category.
The APMA Seal of Acceptance Program recognizes products that have been found to be beneficial to foot health and of significant value when used consistently in a daily foot care program. OOFOS’ full collection is among these products, as all OOFOS styles were found by the committee to promote good foot health, further establishing the therapeutic and health benefits of the brand’s shoes. In receiving the Seal of Acceptance from the APMA, customers and physicians alike are assured that upon purchasing a pair of shoes from OOFOS, they are receiving a product that is of exceptional quality and is manufactured with the consumer’s comfort and well-being in mind.
“This is a huge moment for our brand. It reinforces prior research findings and the benefits of our unique foam technology, which is designed specifically for relief and recovery,” says Steve Gallo, President of OOFOS. “Our mission at OOFOS has always been ‘to make yOO feel better’ and this seal of acceptance by the APMA provides expert validation that our shoes make a difference in the health and wellbeing of our customers day in and day out.”
Made with proprietary OOfoam® technology, OOFOS shoes absorb 37% more impact than traditional foam footwear materials for the perfect blend of cushion and stability, based on a 2018 University of Virginia laboratory study.
The use of the proprietary technology in conjunction with their patented footbed allows the shoes to cradle and support the foot’s arches for more even distribution of pressure across the sole of the foot. The combination has also shown to reduce energy exertion in the ankles by up to 47% when compared to traditional footwear. The APMA committee has further championed this technology through review of the research the brand has done on these footwear components, how the products interact with the human body and the benefits consumers receive compared to traditional footwear.
This seal is just the latest example of how OOFOS is helping yOO recover and feel better with every step. In addition to the APMA Seal of Acceptance, thousands of consumer reviews online rave about the footwear’s positive impact on their lives, including relief of pain due to ailments, bringing comfort to long working hours and maintaining body health for professional athletes.
“These are the most comfortable slides I’ve ever worn in my life,” says OOFOS brand partner and Pro-Football Hall of Famer, Deion Sanders. This is coming from a dude who is 52, has had three toe surgeries, and is in need of a 4th, these shoes changed the game for me!”
About OOFOS OOFOS is the global leader in recovery footwear, founded by a team of industry veterans looking to help runners and fitness enthusiasts recover better from their workouts. Made with revolutionary OOfoam™ technology, OOFOS are designed to absorb 37% more impact than traditional footwear. They reduce stress on joints to keep anyone, of any activity level, feeling their best. From professional athletes to casual walkers, OOFOS footwear will make your hard-working feet and body feel better – all you have to do is feel the OO.
The OOmg shoe features revolutionary OOfoam technology that absorbs 37% more impact than traditional footwear foam materials to reduce the stress on your feet and joints. This technology aids in the recovery process and creates an incredibly comfortable shoe you can wear anywhere. Our breathable 4-way stretch fabric allows for an incredibly comfortable shoe you won’t want to take off. Reduces stress on sore feet, knees, and back Enables more natural motion Minimalist construction for light wei
adidasRunning today unveils the adidas Ultraboost 19, an entirely reimagined and redesigned version of the brand’s iconic leading performance running shoe. adidas designers and product developers worked with thousands of runners from around the world to create the new silhouette, in what was its most ambitious collaboration project ever. The overwhelming feedback from runners was that running is changing, becoming younger and more democratic. With the emergence of city running clubs and fun runs, running is now a sociable sport rather than just something people do on their own. Runners made it clear they wanted a simpler product with fewer pieces but equally high performance. To reflect that, the original adidas Ultraboost was deconstructed and reconstructed from 17 pieces to focus on four key components – Optimized BOOST, Torsion Spring, Primeknit 360 and 3D Heel Frame.
Optimized BOOST –with 20% more BOOST in the midsole compared to the first-generation adidas Ultraboost, this updated technology brings even more energy return
Torsion Spring –a lightweight construction for enhanced support on landing and a snappy transition to propel runners forward
Primeknit 360 –feels like a second skin, combining pure comfort with lightweight performance
Updated 3D Heel Frame –a stripped-back design cradles the heel, bringing the perfect mix of adaptability and support
adidas male running shoe; the adidas brand has a long history and deep-rooted Connection with sport. Everything we do is rooted in sport; Driven by a relentless pursuit of innovation as well as decades of accumulating sports science expertise, we cater for all, from elite professional athletes and teams to any individual who wants to make sport part of their lives
adidas Primeknit 360 upper offers an engineered fit that expands and supports as you move through each stride; Dual-density Boost cushioning under arch provides energized stability for a smooth, responsive ride
Weight: 11 ounces (size 9); Midsole drop: 10 mm (heel: 29 mm, forefoot: 19 mm); Natural feel like a second skin
Lightweight 3D heel frame for personalized fit; Stabilizing Torsion Spring
Features adidas Primeknit upper with engineered knit torsion system between the heel and forefoot for a stable ride and locked-down fit with fitcounter molded heel counter and continental rubber outsole
Global sports brand PUMA, as part of a sponsored research collaboration with MIT Design Lab, has created XETIC, a cushioning technology, which will start a new era by combining the worlds of mechanical cushioning and foam. This ultramodern performance innovation will provide for an excellent comfort for walking and will be first introduced in a new street-ready sneaker called Calibrate Runner.
While the futuristic visible technology of XETIC may look like 3D printing at first, XETIC is not made of plastic, it is foam. XETIC takes its name from “auxetic materials”, structures, which behave in a certain way when they are subjected to mechanical stresses such as compression. For XETIC, this means the cushioning provides an excellent comfort for all wearing occasions.
“PUMA’s innovation department teamed up with MIT Design Lab because we needed their highexpert engineering capabilities,” said Romain Girard, Senior Head of Innovation at PUMA. “MIT has computer simulation possibilities, which enabled us to see the behavior of the material and quickly find the optimal structure for calculated cushioning.”
PUMA and MIT Design Lab worked with an extensive runner community to analyze individual running specifics, such as pressure points, and they then took the data to develop a specifically shaped structure that allows for progressive cushioning. The result was a structure shaped like the horizontal number 8, which is characteristic for the XETIC.
The whole team was delighted with the ability to work on a project that allowed them to explore such a new space and to see all the efforts culminating in the creation of the Calibrate Runner. Over the course of the project qualitative and quantitative user testing was used, a novel finite element analysis simulation, and parametric design to find the perfect pattern, which was named ‘Recurve’.
With its visible XETIC technology, Calibrate Runner has a unique futuristic aesthetic, which will appeal to the techiest of streetwear collectors, while giving athletes access to a new era of cushioning. Straight from the lab, into the future.
A perfect blend of technology, comfort and performance is offered by PUMA x Porsche Design models Xetic M, Xetic L and Xetic M Shift. These models are well rounded delivering maximum performance and luxury in every situation. State of the art fabrics featuring 100% recycle mesh and chrome free leather including a Bloom sockliner imbue the shoes with a special and exclusive look.
The upper features a bold modern clamshell construction with exaggerated PUMA branding on the collar A fine TPU mold on the side quarter panel provides extreme value and totally unique feature while adding an exciting way to add color interest Webbing loops running up the eyestay provides lacing lock down during wear
The ASICS RUNNERS FACE COVER has been designed by the ASICS Institute of Sport Science (ISS) specifically for runners with performance, comfort, and protection at the core of the design
● The face cover employs cutting-edge design features and pioneering technology that give runners space to breathe with comfort so they can perform at their best
● The face cover has been designed in direct response to major concerns about how to run safely as lockdown eases, with ongoing global research  by ASICS revealing that 66% globally of regular exercises avoid certain routes or spaces to maintain social distance with others
[29 JULY 2020 – KOBE, JAPAN] – Today, ASICS is excited to announce a revolutionary face cover for runners – the ASICS RUNNERS FACE COVER.
Created specifically for runners by world-renowned scientists, engineers and designers at the ASICS Institute of Sport Science (ISS), the face cover pairs cutting-edge design with innovative air vents that give runners the room to breathe comfortably, while preventing the spread of droplets. The face covers quick-drying material helps cool the air that reaches its interior.
Together the unique, innovative design and cutting-edge materials allow runners of all levels to exercise without compromising performance or protection. Tests  show that the ASICS RUNNERS FACE COVER significantly improves breathability and comfort with runners feeling little to almost no difference from wearing no mask. Importantly, this is maintained even when running at higher speed where conventional masks inhibit performance.
Kenichi Harano, Executive Officer and Senior General Manager at the ISS said: “We know how important it is for runners to protect themselves and others when running, but also that many find face covers uncomfortable and restrictive. So, we created the ASICS RUNNERS FACE COVER, uniquely designed for runners with cutting-edge technology. The innovative design gives runners room to breathe comfortably while performing at their physical peak.”
The new ASICS RUNNERS FACE COVER will be available to runners globally from mid-September at a retail price of 40 USD. To find out more about the ASICS RUNNERS FACE COVER and register your interest for when this product is available, please visit ASICS RUNNERS FACE COVER .
A pioneering approach to design
The ASICS RUNNERS FACE COVER is not like any other sports accessory on the market. Yasuhito Hirota, President & Chief Operating Officer, ASICS, says: “When I used to run with a normal mask it was hard to breathe, but with this mask I was able to run very comfortably”. While other approaches rely solely on the breathability of materials, the ASICS RUNNERS FACE COVER combines this with an innovative design that gives runners the space to breathe comfortably within the face cover. This groundbreaking approach means that runners of every level can strive for their best performance with the confidence that they are staying protected.
Scientists at the ISS have responded to the unique needs of runners with a series of technologies and design features including:
● Interior Space
The unique curved structure creates more room inside the face cover to allow for easier breathing when running.
● Strategically Placed Air Vents
Air vents innovatively placed on the face cover provide unobstructed airflow while preventing the spread of droplets.
● Quick-drying, Washable Fabric
Cutting-edge material cools the air flowing into the mouth, improving breathability and comfort. The water repellent, washable fabric makes cleaning easier.
● Comfort Fit
Specifically designed to accommodate a wide range of faces with an adjustable cord to ensure fit– helping prevent fog build-up when wearing glasses.
● Sustainable Design
Produced with approximately 31% recycled materials.
ASICS continues to listen to runners of all levels to keep them motivated and protected in a world coming out of lockdown
With the ASICS RUNNERS FACE COVER, ASICS is continuing to listen to runners needs at this time. Ongoing research conducted by ASICS shows that globally, 7 in 10 (68% globally) people are more driven than ever to return to their physical peak.
However, 8 in 10 (79% globally) of regular exercisers we surveyed said wearing a face cover when running is not a comfortable experience because it is hard to breathe and irritates the skin. The ASICS RUNNERS FACE COVER is designed specifically to address the need for a face cover while running that offers comfort as well as performance and protection, with 5 in 10 runners (53% globally) saying they would feel more comfortable about their safety wearing a face cover while exercising.
Yasuhito Hirota further explains: “At ASICS, listening to our runners and understanding their changing needs lies at the heart of everything we do. There is lots more we can learn from the running community as lockdown eases across the globe, and we will continue to evolve our products and services to meet their future needs.”
For expert advice, training plans and more information about how to run, people can follow #RunToFeel or visit asics.com.
To find out more about the ASICS RUNNERS FACE COVER and register your interest for when this product is available, please visit ASICS RUNNERS FACE COVER.
HELPING THE WORLD RUN
ASICS is helping the world maintain its newfound love of running through a series of initiatives aimed at helping people continue to stay safe and motivated in a world coming out of lockdown. These include:
● Offering free access to the ASICS Studio™ at-home workout app for everyone through to the end of August 2020
● Highlighting running in people’s lives by calling on them to share how they stay motivated via #RunToFeel
● Providing additional training content and guidance from ASICS FrontRunner community and athletes
We consider the health and wellbeing of our athletes, customers and staff as our top priority, and we took the decision months ago to close our retail stores and offices in affected markets around the world. Medical professionals say that in the current situation movement is very important to ensure everybody’s mental and physical wellbeing. We believe in the power of sport to uplift us all, and in times like this it has never been as important to help everyone achieve a sound mind in a sound body. We will continue to do all we can to help the world achieve that goal.
 ASICS 2020 Pulse Survey: a live study of 1,250 regular exercisers in total across five markets that explores how people are feeling about returning to fitness and their current safety concerns/challenges. Conducted by Edelman Intelligence
 Tests conducted at ASICS Institute of Sport Science in Kobe, July 2020 compared ASICS Runner Face Cover with Conventional Non-Woven masks. Results demonstrate improved breathability and comfort at speeds both above and below AT (anaerobic threshold) using the perception scale.
HIGH QUALITY 3 LAYER FACE MASKS: 50 Pack Individually Wrapped (Or 5 packs of 10 pieces.) Disposable Black Face Mask, Breathable safety face masks are made of high quality facial mask non-woven fabric. ❤According to some custmer's feedback, we modified the packaging method, because the product batch is different, the product you receive may be individually packaged, or it may be in 5 packs of 10 pieces. Please kindly understand.❤
ULTRA SOFT AND COMFORTABLE: Disposable masks for protection are using for personal protection. The Length is 6.88 inch / The width is 3.74 inch. Soft and elastic earloop provide a light weight wearing experience for you. Easy to use, cover mouth, nose and chin.
ADJUSTABLE NOSE BRIDGE CLAMP: Highly elastic earrings have high elasticity and cover the face from the nose to the chin, achieving a good seal without tightness. Hard to break, comfortable and easy to carry. Suitable for most adult boys and girls sizes. Fits almost all face shapes.
SAFETY WIDELY USE: Adult face masks are suitable for office, home, salon, cycling, grocery store and all the indoor and outdoor activities. It’s a best safety mask to wear it when you travel through congested airports, bus terminals, malls, party and busy city streets. keep you from dust, haze, smoke, automobile exhaust, etc. Pack of 50 black masks disposable bulk, enough to meet your family /staff /friends' demands.
FAST DELIVERY: Our masks are all fulfilled by Amazon, usually, you will receive it in 1-3 business days. Amazon provide variety delivery services, if you need masks urgently, we suggest you choose the expedited delivery service.
【Five Layers Protection】There are five layers of structure in the filter. The Breathable Layer is for blocking the larger particles. The activated carbon filter layer can filter benzene and car exhaust. The inner moisture-wicking layer is to block the smaller 0.3-micron dust and keep dry. The submicron particle filter layer is to reduce the smaller 0.03-micron dust. The non-woven layer is comfortable and breathable. With 5 layers of filter, it effectively filters out various harmful substances.
【Breathable Design】Made of nylon and spandex, the face mask with the design of double breathable valves and the nylon mesh material is specially designed for smooth breathing and reducing the build-up of heat and moisture, which is perfect for running, cycling, sanitating, jogging, hunting, climbing, gardening and outdoor activities, or workplaces.
【Replaceable & Reusable】The package comes with a dust mask(a filter included) and 6pcs filters. You can easily replace the filter following our steps. Besides, you can wash the nylon mesh and valves for reusing, when they become dirty.
【Adjustable Size to Fit】The dust mask uses an aluminum strip on the outside of the bridge of the nose, which can be bent to fit your nose size. The earloop design makes it hang comfortably behind the ears. The velcro band can be tied to the back of the head, so there is no need to always readjust the mask. The durable design ensures a comfortable and secure fit and prevents dust and other contaminants from penetrating the mask.
【Satisfied Service】It is especially useful for those who need to work in heavy dusty. It is better to replace the filter every 2-3 days if the mask is used extensively. We pursue to provide quality products and a great shopping experience for our customers. Please feel free to contact us if any problems. 已过白名单和品牌备案，跟卖直接投诉加小红旗
Adjustable Ear Loops: The ear loops are adjustable to allow you to get the mask to fit your face easily. There is a built in lanyard strap that goes around your neck to keep the mask on you body when you need to take it off your face. Patent pending design.
Comfortable, Breathable, & Washable: These masks are made from two layers of cotton t-shirt material, making them soft on the skin and easy to breath through. You can wash and reuse your mask over and over again.
Available in 3 Sizes: Masks are available in three sizes youth (ages 6-12), adult large (teens and adults), adult xl (people with large faces and men with beards).
Pocket for Filters: There is a pocket where you can insert filters into this mask. The filters are not included.
Made in the USA: These masks are made in the USA from US Made fabric. Thanks for supporting American manufacturing.
Comfortable & Convenient - Unique design with adjustable lanyard takes pressure off the ears and allows the mask to hang around your neck when not in use.
Quality Materials - Two layers of soft, breathable, moisture wicking fabric. Flexible brass nose band helps eliminate glasses fogging.
Multiple Sizes & Colors - Child, Adult and XL Adult. Child mask will fit children ages 3-12. Adult will fit teens and average adults. XL Adult will fit people with larger heads and men with beards. Approximate dimensions are: Child: 4" x 7", Adult: 6" x 8", XL Adult: 6.5" x 9" (not including the lanyard cords). Available in a range of colors.
Made in the USA: Proudly designed and sewn by Mambe in the USA with careful attention to detail.
Intended for Casual Use: Ideal for intermittent or continual wear. Indoors or outdoors.
These amendments, approved by the World Athletics Council and introduced with immediate effect, are based on significant ongoing discussions with the Working Group on Athletic Shoes, established this year, and with the shoe manufacturers.
They include changes to the maximum height of spiked shoes for track and field events and the establishment of an ‘Athletic Shoe Availability Scheme’ for unsponsored elite athletes. The maximum height for road shoes (40mm) remains unchanged.
The purpose of these amendments is to maintain the current technology status quo until the Olympic Games in Tokyo across all events until a newly formed Working Group on Athletic Shoes, which includes representatives from shoe manufacturers and the World Federation of the Sporting Goods Industry (WFSGI), have had the opportunity to set the parameters for achieving the right balance between innovation, competitive advantage and universality and availability.
The amendments include:
Clarification of the position for new shoes that have been approved to date;
As an ongoing obligation, athletes, their authorised representative or their shoe manufacturer must continue to submit shoe specifications and, if requested, new shoes for examination by our independent expert;
Approved shoes to be made available prior to an international competition for distribution to any uncontracted elite athlete via an Athletic Shoe Availability Scheme. The Working Group on Athletic Shoes will develop this scheme including timelines, elite athlete criteria, numbers of pairs of shoes required and method of distribution.
Confirmation that the manufacturer commits to making the new shoe available via a scheme to provide shoes to unsponsored elite athletes for free and/or for purchase depending on whether they are qualified or an unqualified athlete who benefits from a place at World Athletics Series events or Olympic Games;
Provision of information concerning the availability of the shoe for other unsponsored elite athletes who need a pair of shoes prior to competition. This is in keeping with the principle of shoes being reasonably available to athletes. As a priority item, in its forthcoming meeting we will work with the working group and World Federation of Sports Goods Industry to design an ‘Athletic Shoe Availability Scheme’ to deliver this. The scheme will cover process, criteria, numbers of pairs of shoes required, method of distribution and when the shoe needs to be available from (our position, which has been generally accepted by manufacturers, is for one month prior to international competition).
The maximum height of athletics shoes have been amended as set out in the table below:
Maximum thickness of the sole (As per rule 5.5, notes (i), (ii), (iii) and figures (a) & (b) to rule 5.5, and rule 5.13.3).
Further rule requirement
Field events (except triple jump)
Applies to all throwing events, and vertical and horizontal jumping events except the triple jump. For all field events, the sole at the centre of the athlete’s forefoot must not be higher than the sole at centre of the athlete’s heel.
The sole at the centre of the athlete’s forefoot must not be higher than the sole at centre of the athlete’s heel.
Track events (including hurdle events) up to but not including 800m
For relays the rule applies to the distance of the leg being run by each athlete.
Track events from 800m and above (including steeplechase events)
For relays the rule applies to the distance of the leg being run by each athlete. For race walking events the maximum thickness of the sole is the same as that for road events.
Road events (running and race walking events)
Events under rule 57 of the technical rules
World Athletics CEO Jon Ridgeon said the previous rule changes, announced in late January, were designed to give the athletes clarity before the Tokyo Olympic Games, which were originally due to take place in July-August this year.
However the later postponement of the Olympic Games for a full year, due to the global pandemic, had given the governing body more time to consult with stakeholders and experts and develop amended rules that will guide the sport through until late 2021.
“We have a better understanding now of what technology is already in the market and where we need to draw the line to maintain the status quo until after the Tokyo Olympic Games,” Ridgeon said.
“In developing these rules we have been mindful of the principles of fair play and universality, maintaining the health and safety of athletes, reflecting the existing shoe market in these challenging economic times, and achieving a broad consensus with the shoe manufacturers who are major investors in our sport.
“These transitional rules give us more time to develop a set of working rules for the long term, which will be introduced after the Olympic Games next year, with the aim of achieving the right balance between innovation, competitive advantage and universality.”
Working Group on Athletic Shoes
The new Working Group on Athletic Shoes (WGAS) met for their first meeting last Wednesday (22 July). It is tasked with scoping and overseeing studies around shoe technology, exploring definitions to provide clarity to athletes about the shoes they are able to compete in, creating a robust certification and control process and providing expert advice and recommendations to the World Athletics Competition Commission on the future direction of World Athletics’ Rules and Regulations concerning elite athlete shoes for the long-term which may or may not be different to the current rules. The structure and composition of the WGAS can be found here.
Rearfoot and Forefoot GEL Technology Cushioning System - Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle.
FlyteFoam Midsole Technology - Our FlyteFoam technology provides exceptional bounce back and responsiveness no matter the distance, utilizing organic super fibers to help reduce packing out that traditionally happens with softer, low density foams.
FlyteFoam Propel Technology - ASICS energetic foam formulation that provides supreme bounce thanks to a unique elastomer compound.
Dynamic DuoMax Support System - This evolution of DuoMax system enhances stability and support, with reduced weight and increased platform support.
SPACE TRUSSTIC Technology - Reduces the weight of the sole unit while providing stability and retaining the structural integrity of the shoe.
Rearfoot and Forefoot GEL Technology Cushioning System - Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle.
FlyteFoam Midsole Technology - Our FlyteFoam technology provides exceptional bounce back and responsiveness no matter the distance, utilizing organic super fibers to help reduce packing out that traditionally happens with softer, low density foams.
DuoMax Support System - A dual density midsole system positioned to enhance support and stability, positioned sport specifically.
Guidance Line Midsole Technology - Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.
Guidance Trusstic System Technology - This Trusstic System Technology integrates Guidance Line construction for enhanced gait efficiency while providing midfoot structural integrity.
REARFOOT AND FOREFOOT GEL TECHNOLOGY CUSHIONING SYSTEM - Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle.
FLYTEFOAM MIDSOLE TECHNOLOGY -Our Our FlyteFoam technology provides exceptional bounce back and responsiveness no matter the distance, utilizing organic super fibers to help reduce packing out that traditionally happens with softer, low density foams.
ENGINEERED MESH UPPER -Multi-directional mesh material improves ventilation and stability.
DYNAMIC DUOMAX SUPPORT SYSTEM -This evolution of DuoMax system enhances stability and support, with reduced weight and increased platform support.
TRUSSTIC SYSTEM TECHNOLOGY -Reduces the weight of the sole unit while retaining the structural integrity of the shoe.
“Running in Tarahumara (Rarámuri) Culture,” just published in Current Anthropology (v61, no. 3 (June 2020): 356-379) studies the Tarahumara Native Americans of northern Mexico. For over a century, the Tarahumara have been famous for their long distance running traditions and abilities, with many accounts claiming they have superhuman athletic abilities that partly result from being uncontaminated by westernization. Now an international team of researchers (including a champion Tarahumara runner) combine their own observations with detailed interviews of elderly Tarahumara runners to dispel these stereotypical myths, which they term the “fallacy of the athletic savage.” Lieberman and colleagues use accounts by Tarahumara runners to detail the various ways Tarahumara used to run for hours to hunt animals, and they describe how the Tarahumara still run traditional long distance races that, for men, involve chasing a small wooden ball and, for women, a hoop. While these many different kinds of running have important social dimensions, running is also a spiritually vital form of prayer for the Tarahumara. Further, contrary to the fallacy of the athletic savage, Tarahumara runners –both men and women– struggle just as much as runners from other cultures to run long distances, and instead of being the natural “superathletes” that some journalists have claimed, they develop their endurance from regular hard work and other endurance physical activities such as lots of walking and dancing.
Daniel E. Lieberman, Mickey Mahaffey, Silvino Cubesare Quimare, Nicholas B. Holowka, Ian J. Wallace, and Aaron L. Baggish, “Running in Tarahumara (Rarámuri) Culture: Persistence Hunting, Footracing, Dancing, Work, and the Fallacy of the Athletic Savage,” Current Anthropology 61, no. 3 (June 2020): 356-379.
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NOTE: For the best chance of a correct fit, please measure your foot: 1) Place a piece of paper on the floor, against a wall; 2) Step on the paper, your heel against the wall; 3) Mark the paper in line with your longest toe; 4) Measure that length with a ruler; 5) Compare that length to the sizing chart (link, above). To REALLY ensure a correct fit, get printable templates of the exact sizes by contacting the Seller.