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An Inside Look: September 2010 Medicine & Science in Sport & Exercise

Check out the September issue of Medicine & Science in Sport & Exercise (MSSE) online now. ACSM members can access the journal for free – simply log in at the ACSM website and click “My ACSM.”

MSSE Editor-in-Chief Andrew J. Young, Ph.D., FACSM offers his insights into the September issue:

This month MSSE features two articles illustrating some yin yang of exercise adaptation. Power et al. report a cross-sectional comparison of masters-level runners, healthy aged-matched and recreationally active younger controls in "Motor Unit Number Estimates in Masters Runners: Use It or Lose It?" which suggests that lifelong high-intensity exercise training may prevent an age-associated decline in motor unit function. However, "Harmful Effect of Land-based Endurance Exercise in Rats with Diabetic Nerve," by Kim and Lee, describes experiments showing that aerobic exercise training can adversely affect nerves in diabetic rats, an effect seemingly more pronounced with treadmill than swimming exercise. This interesting basic science investigation may have clinical implications, if the findings can be translated to humans.

Elsewhere in the September issue, McAnulty et al. report in "Effect of n-3 Fatty Acids and Antioxidants on Oxidative Stress after Exercise," that fit, young men fed omega-3 fatty acid supplements while performing three days of heavy exercise appeared to exhibit more pronounced oxidative stress than subjects fed placebos during the heavy exercise. This observation could suggest that omega-3 fatty acid supplementation is not without some downside potential, but must be confirmed in other subject groups. more

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