| Title |
Effects of Resistance Training on Lower-Extremity Muscle Power in Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
|
|---|---|
| Published in |
Sports Medicine, November 2015
|
| DOI | 10.1007/s40279-015-0418-4 |
| Pubmed ID | |
| Authors |
Chad R. Straight, Jacob B. Lindheimer, Anne O. Brady, Rodney K. Dishman, Ellen M. Evans |
| Abstract |
Resistance training (RT) has been investigated as a potential intervention strategy for improving muscle function, but the effects on lower-extremity muscle power in middle-aged and older adults have not been systematically reviewed. The aim of this meta-analysis is to provide a quantitative estimate of the effect of RT on lower-extremity muscle power in middle-aged and older adults and to examine independent moderators of this relationship. Randomized controlled trials that examined the effects of RT on either leg press (LP) or knee extension (KE) muscle power in adults aged ≥50 years were included. Data were aggregated with meta-analytic techniques, and multi-level modeling was used to adjust for nesting effects. A total of 52 effects from 12 randomized controlled trials were analyzed with a random-effects model to estimate the effect of RT on lower-extremity muscle power. A multiple-regression analysis was conducted to examine independent moderators of the mean effect. The adjusted aggregated results from all studies indicate that RT has a small-to-moderate effect on lower-extremity muscle power (Hedges' d = 0.34, 95 % confidence interval [CI] 0.25-0.43), which translated to 54.90 watts (95 % CI 40.37-69.43). Meta-regression analyses indicated that high-velocity RT was superior to traditional RT (Δ = 0.62 vs. 0.20, respectively) for increasing lower-extremity muscle power. In addition, training volume significantly moderated the effect of RT on muscle power. The findings from this meta-analysis indicate that RT is an efficacious intervention strategy for improving LP and KE muscle power in adults aged ≥50 years. Training mode and volume independently moderate the effect of RT on lower-extremity muscle power, and should be considered when prescribing RT exercise for middle-aged and older adults. |
X Demographics
The data shown below were collected from the profiles of 23 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 9 | 39% |
| Netherlands | 2 | 9% |
| United States | 2 | 9% |
| Greece | 1 | 4% |
| Denmark | 1 | 4% |
| Spain | 1 | 4% |
| Unknown | 7 | 30% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 11 | 48% |
| Members of the public | 9 | 39% |
| Practitioners (doctors, other healthcare professionals) | 3 | 13% |
Mendeley readers
The data shown below were compiled from readership statistics for 218 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Chile | 1 | <1% |
| Unknown | 217 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 38 | 17% |
| Student > Bachelor | 25 | 11% |
| Student > Ph. D. Student | 23 | 11% |
| Researcher | 15 | 7% |
| Professor | 11 | 5% |
| Other | 40 | 18% |
| Unknown | 66 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 60 | 28% |
| Medicine and Dentistry | 23 | 11% |
| Nursing and Health Professions | 13 | 6% |
| Agricultural and Biological Sciences | 12 | 6% |
| Biochemistry, Genetics and Molecular Biology | 7 | 3% |
| Other | 22 | 10% |
| Unknown | 81 | 37% |
Attention Score in Context
This research output has an Altmetric Attention Score of 13. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 July 2017.
All research outputs
#2,496,303
of 23,192,960 outputs
Outputs from Sports Medicine
#1,491
of 2,726 outputs
Outputs of similar age
#37,669
of 286,517 outputs
Outputs of similar age from Sports Medicine
#43
of 58 outputs
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