Active Pregnant Women Deliver Smaller Offspring
The American Congress of Obstetricians and Gynecologists advises pregnant women to exercise at least 30 minutes most days of the week. The organization states that regular exercise may provide relief from some of the symptoms of pregnancy and help women cope with the pains of labor. A recent study published in the June issue of the Journal of Clinical Endocrinology & Metabolism (2010; 95 , 2080–88) has found that physical activity during pregnancy can lead to a modest reduction in offspring birth weight.
The study included 84 first-time mothers, who were assigned to either an exercise or a control group. The exercisers participated in a maximum of five 40-minute sessions per week of moderate-intensity stationary cycling until at least the 36th week of gestation. At study completion, the researchers found that the exercise group produced babies approximately 143 ± 94 grams (about 5 ounces) lighter than those delivered by the control group. There was no effect on maternal body weight or insulin resistance. “Our findings show that regular aerobic exercise alters the maternal environment in some way that has an impact on nutrient stimulation of fetal growth, resulting in a reduction in offspring birth weight,” stated study co-author Paul Hofman, MD, from the University of Auckland in New Zealand. “Given that large birth size is associated with an increased risk of obesity, a modest reduction in birth weight may have long-term health benefits for offspring by lowering this risk later in life.”
For the latest research, statistics, sample classes, and more, "Like" IDEA on Facebook here.
© 2010 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.