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Home   About ACSM   Join ACSM   Meetings   Continuing Education   Get Certified   Access Public Information Feb. 14, 2012

In this issue:

Active Voice: Foot Orthoses and Neuromuscular Fatigue – A New Insight?
Join Us for an Evening at the Ballpark in San Francicso!
Policy Corner: Experts Divided on Cholesterol Screening for Children
Get Your ACSM InfoSearch Weekly Literature Update
Tune In To Upcoming Sports Medicine & Fitness Shows on HealthRadio
Sports Medicine & Exercise Science Headlines

Active Voice: Foot Orthoses and Neuromuscular Fatigue — A New Insight?
By Luke A. Kelly    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Viewpoints presented in SMB commentaries reflect opinions of the authors and do not necessarily reflect positions or policies of ACSM.

Luke A. Kelly is a sports podiatrist working at ASPETAR, Qatar Orthopaedic & Sports Medicine Hospital in Qatar. His main research interests are in the field of neuromechanics, with specific focus on how neuromuscular function in the lower limb can be modified to reduce injury risk and improve athletic performance. He is also a Ph.D. candidate at the School of Human Movement Studies at the University of Queensland in Australia. This commentary presents Kelly’s views associated with the research article he and his colleagues published in the Dec. 2011 issue of Medicine & Science in Sports & Exercise® (MSSE).

Prolonged running can lead to various neural (reduced drive to the muscle) and muscular (reduced contractility) adjustments, impairing muscle force generating capacity and culminating in significant modifications to lower limb biomechanics. Emerging evidence suggests that some of these biomechanical changes, such as increased joint loading and increased vertical impact forces, may be important in the pathogenesis of overuse running injuries.

Foot orthoses are often prescribed by sports medicine practitioners as part of treatment and prevention of lower limb overuse injuries in runners. It has been proposed that one such benefit of foot orthoses is their ability to reduce foot pronation forces (inward roll of the rear-foot and collapse of the medial arch), thus reducing the mechanical demand imposed on muscles that help control this movement. Recent evidence shows that running with foot orthoses does reduce the activation of muscles, such as tibialis posterior and tibialis anterior, leading to recruitment patterns that reflect similar activity levels of people with more neutral foot posture (see Murley et al. 2010). However, these studies have only reported data from participants in a non-fatigued state. As recreational runners typically run at levels of moderate exertion for sustained periods, we thought it beneficial to examine the impact of such sustained running with foot orthoses on neuromuscular control as well as the nature of post-exercise fatigue.

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Join Us for an Evening at the Ballpark in San Francicso!
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Coming to San Francisco for ACSM’s 59th Annual Meeting and 3rd World Congress on Exercise is Medicine® this May? The Southwest ACSM Regional Chapter invites you to join them for an evening at the ballpark as the San Francisco Giants take on the Chicago Cubs. The game will be held at AT&T Park on Friday, June 1, and tickets are just $35.25 in ACSM’s section. An evening at the ballpark is a great way to enjoy one of San Francisco’s great venues and relax with your ACSM colleagues!

The ballpark social is one of many networking opportunities offered in conjunction with the Annual Meeting and World Congress on Exercise is Medicine – in addition to cutting-edge research and presentations. Visit www.acsmannualmeeting.org for complete registration information and details.


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Policy Corner: Experts Divided on Cholesterol Screening for Children
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Prevention is a key part of healthy lifestyles, and ACSM believes more should be done to prevent development of chronic diseases, especially among children. The following synopsis of a National Heart, Lung, and Blood Institute recommendation comes from Kaiser Health News.

In late 2011, an expert panel at the National Heart, Lung, and Blood Institute (NHLBI) made the somewhat controversial recommendation that all children be screened for high cholesterol twice during their youth, once between ages 9 and 11 and once between ages 17 and 21. Proponents of this recommendation finds cholesterol testing sufficient for children who might be genetically predisposed to high cholesterol, or for those children who have abnormally high levels of LDL cholesterol from poor nutrition and low activity levels, which could cause being overweight or obese. Opposing clinicians, however, support low-cost prevention methods and question the health and safety consequences of screening all children.

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Get Your ACSM InfoSearch Weekly Literature Update
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ACSM InfoSearch is a powerful information update service that offers you the easiest and most efficient way to stay on top of the latest professional literature in your specific areas of interest.

To ensure you’re getting your personalized ACSM InfoSearch Weekly Literature Update email, click here and log in with your email address and your ACSM member number. To confirm you’re getting just the information you need, use the "Modify Your Profile" link in the box in the left column of the ACSM InfoSearch Home Page and follow the instructions to refine your information profile.

Take full advantage of this ACSM member benefit that includes:
  • A weekly literature update featuring ACSM news and reviews of just-published books, e-books and software in your profiled areas of interest.
  • Full access to the Web's most comprehensive database of health sciences titles, including expert, timely reviews, with an easy-to-use ordering mechanism.
  • A free, 30-day, no-obligation trial to the Premium version of ACSM InfoSearch, which provides weekly updates of articles added to Medline© through a unique, personalized, topic-driven system. ACSM members can subscribe to the Premium version for the deeply discounted, members-only price of $29.95 per year.
Click here to stay up to date on the literature in your field.

Tune In To Upcoming Sports Medicine & Fitness Shows on HealthRadio
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HealthRadio’s Sports Medicine & Fitness Show continues to grow in popularity and share vital information on exercise science and sports medicine with the public. Tune in every Tuesday at 1:00 p.m. ET to hear host Melanie Cole interview ACSM experts on topics ranging from exercise in the heat to exercise and the common cold.

Be a guest on HealthRadio, and share your knowledge with the public. If you’re interested, simply send an email with your proposed topics to Ashley Crockett-Lohr at alohr@acsm.org, and she’ll book you for an upcoming show.

Plus – more than 200 podcasts of past segments are available on HealthRadio’s website. Download your choice of podcast and listen to ACSM experts at your computer or on the go.

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Exercise and Science Headlines

Headlines include recent stories in the media on sports medicine and exercise science topics and do not reflect ACSM statements, views or endorsements. Headlines are meant to inform members on what the public is reading and hearing about the field.

Exercise Prevents Dementia-Related Deaths According to Study
Huffington Post    Share    Share on FacebookTwitterShare on LinkedinE-mail article
We've long known that exercise is great preventive medicine, but we generally think of it in terms of curbing the risk of cardiovascular disease, diabetes or even cancer. Now, in one of the first studies of its kind, researchers have found that physical fitness also lowers the risk of dementia-related death.

While cardiovascular and cancer deaths are on the decline, deaths from dementia and Alzheimer's are on the rise. According to the study's authors, deaths related to dementia increased by 46 percent between 2002 and 2006 alone. And some of that may have to do with fitness: lead researcher Rui Liu -- a fellow at the National Institute of Environmental Health Sciences at the NIH -- and her team found that being out of shape more than doubled the risk of dying from a dementia-related cause.

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About One-Third of Patients Told By Doctors to Exercise
Los Angeles Times    Share    Share on FacebookTwitterShare on LinkedinE-mail article
If there is a magic "pill" in medicine, it is exercise. Working out regularly is associated with a broad spectrum of health improvements, including cardiac, bone, brain and lungs. But a new study shows that only one in three U.S. adults is asked about his or her exercise habits by a physician.

The data, published Thursday by the Centers for Disease Control and Prevention, came from the National Health Interview Survey of 2010, which polls more than 21,800 adults. One in three who had seen a doctor in the past year said they had been advised to begin exercise or continue exercising, researchers found. Slightly more women were asked about exercise than men.

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