The body’s ability to sweat is a necessary physiological function that regulates body temperature. But a study published recently in Experimental Physiology (2010; 95 , 1026–32) found that while men tend to have a highly efficient sweat response, women do not. The researchers, from the Laboratory for Human Performance Research at Osaka International University in Japan, separated 37 people into four groups: trained females, untrained females, trained males and untrained males.
A recent blog published in The New York Times (“Phys Ed: Are Bad Knees in Our Genes?” September 29, 2010) posited that genetics may play a role in anterior cruciate ligament (ACL) injuries. The blog cited a study from the British Journal of Sports Medicine (2010; 44 , 848–55) that revealed similar ACL injuries in fraternal twin girls. Their older sister, while not part of the study, had also suffered a catastrophic injury to her ACL.
I encourage my clients and running friends to try barefoot running whenever they can. They don’t have to be a “total convert” to gain some of the benefits. The strength that develops in the feet and lower legs, the lighter landing while running that reduces stress and the sheer fun of going without shoes is worth it.
A common goal among male exercisers is to increase muscle mass and strength. For many men, achieving this goal can be a struggle. IDEA author Lance Breger, MS, head private trainer at MINT Fitness & Spa in Washington, DC, suggests some out-of-the-box techniques to help clients overcome strength and hypertrophy plateaus.
How often has a client or student approached you and asked, “What type of shoe would be best for this workout?” At the university where I teach, I am asked this question every quarter by several hundred students, all of whom have different needs, different feet and different histories.
Anatomy. Many fitness professionals would rather read about something else. They know they “have to learn this stuff,” but the thought of studying the origin, insertion point and action of each muscle fills them with dread. And it just doesn’t seem that important when helping clients lose weight, build muscle or improve their function and/or performance. However, nothing could be further from the truth. The problem isn’t the actual study of anatomy—it’s the way in which anatomy has traditionally been taught.
Several research studies and articles have emerged about the potential benefits of tossing the “tennies” and running barefoot. On the heels of these claims, many consumers and fitness professionals are joining the barefoot revolution. But what about potential road hazards, such as broken glass and sharp rocks? One company offers a slightly more protective alternative to the naked foot.
Maintaining bone health and avoiding fractures are important concerns for older adults. For those who have experienced fractures, research has found that the potential for a second fracture can increase fourfold. Help your older-adult clients remain strong and healthy with Own the Bone™, a Web-based registry that features tools for reducing future fractures.
Lots of research has emerged about the kinematics of running, fueling debates over footwear and strike patterns. A recent study published in The Journal of Experimental Biology (2010; 213, 790–97) sought to slow things down a bit and look at the energy costs of different gait patterns. “Our heel touches the ground at the start of each step,” stated David Carrier, biology professor at the University of Utah and lead study author.