Author : Laura Ashleigh Morgan
Release : 2013
Genre : Exercise for older people
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Book Rating : 466/5 ( reviews)

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Effects of High-velocity Versus Low-velocity Resistance Training on Resting Metabolic Rate and Functional Performance in Older Adults - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Effects of High-velocity Versus Low-velocity Resistance Training on Resting Metabolic Rate and Functional Performance in Older Adults write by Laura Ashleigh Morgan. This book was released on 2013. Effects of High-velocity Versus Low-velocity Resistance Training on Resting Metabolic Rate and Functional Performance in Older Adults available in PDF, EPUB and Kindle. The purpose of this study was to compare the effects of a 12-week high-velocity resistance training (HVRT) protocol to a traditional low-velocity resistance training (LVRT) protocol on resting metabolic rate (RMR) and other selected measures of muscular and functional fitness in older adults. Nineteen adults between the ages of 65 and 82 participated: 8 HVRT, 7 LVRT, and 4 controls (CTRL). Initially, no differences existed between groups except for age ( p = .016). HVRT (75.6 years) was older than LVRT (69.6 years) and CTRL (69.3 years). The exercise intervention consisted of 2 days/week sessions for 12 weeks at 3 sets of 10 repetitions progressing to 80% 1RM for leg press, leg curl, leg extension, upper back, chest press, and shoulder press on Keiser pneumatic resistance machines. CTRL participants walked throughout the 12 weeks. Pre- and post-intervention strength, power (leg extension at 180°/sec), RMR, body composition, and functional fitness (30-sec chair stand and 8-ft up-and-go) were measured. Data were analyzed by a repeated measures analysis of variance (ANOVA) and effect sizes. All groups decreased RMR: LVRT by 11.4%, HVRT 15.6%, and CTRL 31.1% (p = .039 between groups). While CTRL lost 5.3% of FFM, HVRT increased 0.7% and LVRT 3.1% (p = .012). All groups increased in power but were not significantly different: CTRL by 3.0%, LVRT 8.7%, and HVRT 11.7% (p = .830). For total lower body strength, CTRL increased by 5.6%, LVRT by 42.3%, and HVRT by 44.6% (p = .016). No significant interaction between time and group was found for chair stand (p = .739) or up-and-go (p = .283). Overall, this study indicates LVRT and HVRT over a 12-week period at 80% 1RM produce similar changes in RMR, FFM, strength, and power.