If (but, of course, not only if) you have a naturally aggressive client looking to lose weight or boost his fitness, you can address both issues simultaneously by having him don a pair of boxing gloves.
Typically, after age 30, the brain’s gray matter (the thin layers of cell bodies such as neurons and support cells involved in learning and memory) and white matter (the myelin sheath containing the nerve fibers that transmit signals throughout the brain) shrink in a manner analogous to a person’s cognitive decline. However, a study published in the February 2003 issue of the Journals of Gerontology Series
A: Biological Sciences and Medical Sciences was the first
to show that physical fitness may deter an older person’s loss of these vital brain tissues.
Because load theoretically increases as mechanical advantage increases, the addition of chains or elastic bands to conventional barbell squats had been thought to boost the loading during the ascent phase, but no research had confirmed this notion. A study published in the November 2002 issue of the Journal of Strength and Conditioning Research shows that such a modification is essentially pointless.
Pick up any packaged food, and you will see the number of calories listed on the label. Of course, nonpackaged foods, such as fresh produce, have calories, too; they just don’t carry labels telling you how many. Most people know that the body uses the calories contained in foods for energy and that, if they consume more calories than they expend, they will gain weight. (They also know that, if they do the opposite, they will lose weight.) Nonetheless, what exactly is a calorie, why do foods have calories and how does the body use them?
By Jennifer Kofoed and Len Kravitz, PhD
ACSM Review: Progression Models in Resistance Training
Following some special guidelines can help you maximize the benefits of resistance training for your healthy adult clients.
has been shown to be task-specific; muscular performance adaptation is influenced by movement patterns and performance speed and specific to the stimuli applied t...