Article

OBJECTIVE: To examine the effect of high-intensity progressive resistance
strength training (HIPRST) on strength, function, mood, quality of life, and
adverse events compared with other intensities in older adults. DATA SOURCES:
Online databases were searched from their inception to July 2012. STUDY
SELECTION: Randomized controlled trials of HIPRST of the lower limb compared with
other intensities of progressive resistance strength training (PRST) in older
adults (mean age >/= 65y) were identified. DATA EXTRACTION: Two reviewers
independently completed quality assessment using the Physiotherapy Evidence
Database (PEDro) scale and data extraction using a prepared checklist. DATA
SYNTHESIS: Twenty-one trials were included. Study quality was fair to moderate
(PEDro scale range, 3-7). Studies had small sample sizes (18-84), and
participants were generally healthy. Meta-analyses revealed HIPRST improved
lower-limb strength greater than moderate- and low-intensity PRST (standardized
mean difference [SMD]=.79; 95% confidence interval [CI], .40 to 1.17 and SMD=.83;
95% CI, -.02 to 1.68, respectively). Studies where groups performed equivalent
training volumes resulted in similar improvements in leg strength, regardless of
training intensity. Similar improvements were found across intensities for
functional performance and disability. The effect of intensity of PRST on mood
was inconsistent across studies. Adverse events were poorly reported, however, no
correlation was found between training intensity and severity of adverse events.
CONCLUSIONS: HIPRST improves lower-limb strength more than lesser training
intensities, although it may not be required to improve functional performance.
Training volume is also an important variable. HIPRST appears to be a safe mode
of exercise in older adults. Further research into its effects on older adults
with chronic health conditions across the care continuum is required.
CI - Copyright (c) 2013 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS