Sports Medicine Bulletin
Sep. 1, 2015

Active Voice: Battle of the Sexes: Are Females More Resistant to Extreme Neuromuscular Fatigue?
By John Temesi, Ph.D., and Guillaume Millet, Ph.D.
John Temesi, Ph.D. Guillaume Millet, Ph.D.
Viewpoints presented in SMB commentaries reflect opinions of the authors and do not necessarily reflect positions or policies of ACSM.

John Temesi, Ph.D., is a postdoctoral fellow in the faculty of kinesiology at the University of Calgary. His research focuses on neuromuscular fatigue, especially central and supraspinal fatigue, related to locomotor exercise in both athletic and clinical populations.

Guillaume Millet, Ph.D., is professor in the faculty of kinesiology at the University of Calgary. His general research area investigates the physiological, neurophysiological and biomechanical factors associated with fatigue, both in extreme exercise (ultra-endurance, hypoxia) and patients (neuromuscular diseases, cancer). Guillaume is also an ultra-marathon runner.

This commentary presents Dr. Temesi’s and Dr. Millet’s views on the topic of a research article which they and other colleagues had published in the July 2015 issue of Medicine & Science in Sports & Exercise® (MSSE).

National Childhood Obesity Awareness Month Begins Today

The sixth annual National Childhood Obesity Awareness Month kicks off today, encouraging all Americans to take steps to reduce the effects of the childhood obesity epidemic in the U.S. According to recent data, more than 23 million children and teenagers in the United States are overweight or obese, and childhood obesity is linked to high blood pressure, high cholesterol, diabetes, breathing problems, joint problems, fatty liver disease and other health concerns. The epidemic also places a financial burden on all of us: Obesity requires $14 billion per year in direct health care costs in the U.S.

To get involved in Childhood Obesity Awareness Month, simply determine how you can take steps to further the cause. Use the toolkit available at, adapt what others have tried, and see how you can build awareness and action toward our shared goal. Look for opportunities in your organization and your community. In doing so, you are contributing to better individual health and quality of life for all. This month, you’re encouraged to take action to reverse this trend by spreading the message about the benefits of physical activity and leading a healthy lifestyle. Download our online toolkit – complete with sample PSAs, proclamations, and news releases – for quick, easy ideas for bringing Childhood Obesity Awareness Month to your community. More

Register Now for Webinar on the Surgeon General's Upcoming Call to Action on Walking

America Walks will host an exclusive webinar on September 15 about the soon-to-be-released Surgeon General's Call to Action on Walking and Walkable Communities. ACSM is a key partner for the call to action. Participants will receive a briefing from the lead scientific writer of the call to action and hear how two organizations plan to take advantage of this exciting document. Presenters include:

Click here to register.More

First Annual "Walks the Walk" Outstanding Clinician Award

Clinicians can help improve the overall health of their patients by encouraging them to take charge and become physically active. In an effort to acknowledge clinicians who have integrated walking consultation/physical activity assessment with their patients and who exemplify role models in life and practice, ACSM has established an annual Outstanding Clinician Award Program. The program is designed to recognize a clinician who meets at least one criterion in each of three different categories: clinical care, patient support and leadership. Nominations are due September 14. More

Free Course Offered on Climate Change Policy and Public Health

The University of Wisconsin is offering a free course beginning November 9 titled "Climate Change Policy and Public Health," taught by Jonathan Patz, MD, M.P.H., director of the Global Health Institute at the University of Wisconsin-Madison and contributor to ACSM's ActivEarth initiative. Dr. Patz was a collaborator on the ACSM-sponsored Civil Society event last year which focused, in part, on active transportation's positive impact on climate change. This course will explore the impact of human activities on climate change and, consequently, public health, as well as the many real benefits to climate change mitigation. For more information or to register for the course, please click here.More

The Key to Running Faster that has Nothing to do With Running
The Huffington Post
If you're a runner working toward your next personal record, you might want to include some time on a stationary bike.

A new study published in the Journal of Strength & Conditioning Research suggests that doing 15 minutes or more of high-intensity interval training on a bike has the ability to make you faster on your feet. The U.K.-based research team believes the improvement stems from the increased heart rate experienced during a shortened rest period between intervals, forcing their muscles to adapt faster to their workout routine.

For the experiment, the researchers recruited 32 long distance runners who log at least 25 miles per week to complete a HIIT workout program on a stationary bike for two weeks. After completing 3 kilometers (1.8 miles) on a treadmill to establish a baseline performance, the subjects were separated into four groups, three of which spent two weeks training on the bike and maintaining their usual running routine. The final group served as a control by only keeping to their normal running schedule. More

Study: Caffeine May Help Your Golf Game
Before heading out to the course for your next round, you might want to go ahead and grab a cup of coffee or a caffeinated drink.

That’s the findings of a recent study done by a group of Auburn University researchers into the possible influence of caffeine on golf-specific performance and fatigue.

It was posted on the Medicine & Science in Sports & Exercise® journal page of the American College of Sports Medicine website.

The researchers studied 12 male golfers with single-digit handicaps in a two-day, 36-hole tournament. Half received a caffeine supplement — roughly equal to the caffeine in an average cup of coffee — before their round and then again at the turn. The others received a placebo.

Then they checked a number of normal golf variables, including score, driving distance, fairways and greens in regulation, and putting. In addition, they recorded heart and breathing rates. The golfers were also asked to assess their own feelings of energy and fatigue, alertness and concentration.More