The Letter D Is for Dense Bones
A recent study in the May 11 issue of The Journal of the American Medical Association suggests that vitamin D in high doses may help sedentary older adults avoid certain types of bone fractures. After comparing study participants who received oral vitamin D supplements (with and without calcium supplementation) with those who were given either calcium alone or a placebo, the study authors reached this conclusion: “Oral vitamin D supplementation between 700 [and] 800 International Units (IU) per day appears to reduce the risk of hip and any nonvertebral fractures in ambulatory or institutionalized elderly persons. An oral vitamin D dose of 400 IU per day is not sufficient for fracture prevention.”
For the latest research, statistics, sample classes, and more, "Like" IDEA on Facebook here.
© 2005 by IDEA Health & Fitness Inc. All rights reserved. Reproduction without permission is strictly prohibited.
|Extreme Interval Training
In this course you'll learn goal-focused intervals and over 50 dynamic exercises and drills to create extensive and intensive training formats.
|Cut to the Core
This is a raw, unedited video filmed live at the 2009 IDEA World Fitness Convention™. Cut to the Core is packed full of core-focused exercises that aim to improve the way you look, feel and live.
|September 2011 IDEA Fitness Journal Quiz 4: Plyometric Training
This continuing education quiz is an in-depth look at plyometric training. Plyometric exercises—jumping, bounding, hopping, arm pushing, and catching and throwing weighted objects such as machine balls—are movements that involve rapid eccentric and concentric muscle actions.