Reliability of maximal voluntary muscle strength and power testing in older men.

Reliability of maximal voluntary muscle strength and power testing in older men. Research Abstract Details 

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Reliability of maximal voluntary muscle strength and power testing in older men. Abstract Text:

E Todd Schroeder,Ying Wang,Carmen Castaneda-Sceppa,Gregory Cloutier,Alberto F Vallejo,Miwa Kawakubo,Nicole E Jensky,Susan Coomber,Stanley P Azen,Fred R Sattler,

BACKGROUND: Maximal voluntary muscle strength (MVMS) and leg power are important measures of physical function in older adults. We hypothesized that performing these measures twice within 7-10 days would demonstrate a >5% increase due to learning and familiarization of the testing procedures. METHODS: Data were collected from three studies in older adult men (60-87 years) and were divided into two cohorts defined by study site and type of exercise equipment. MVMS was assessed in 116 participants using the one-repetition maximum method at two separate study visits for the chest press, latissimus pull-down, leg press, leg flexion, and leg extension exercises along with unilateral leg extension power. RESULTS: Test-retest scores were not different and did not exceed 0.8 +/- 9.0% in Cohort 1 or 2.3 +/- 9.8% in Cohort 2, except for leg extension, which improved by 6.6 +/- 14.4% (p <.009) and 3.4 +/- 6.8% (p <.016), respectively. Repeat tests were closely correlated with initial tests (all p <.001). Pearson correlation coefficients ranged from 0.74 for leg extension power to 0.96 for leg press. Coefficients of variation were <10% (4.2%-9.0%) for all exercises except for leg extension power, which was 15.5%. CONCLUSIONS: Our findings demonstrated that test-retest measures of MVMS and power in older adult men do not differ by more than 2.3% except for leg extension, and have relatively low coefficients of variation using data collected from three studies. Moreover, these findings were similar between two study sites using different equipment, which further supports the reliability of MVMS and power testing in older adult men.

Reliability of maximal voluntary muscle strength and power testing in older men. Publishing Authors By Initials

ET Schroeder,Y Wang,C Castaneda-Sceppa,G Cloutier,AF Vallejo,M Kawakubo,NE Jensky,S Coomber,SP Azen,FR Sattler,

For similar technology, industry, and agriculture: manufactured materials: sports equipment research abstracts see: technology, industry, and agriculture: manufactured materials: sports equipment research

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Reliability of maximal voluntary muscle strength and power testing in older men. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: The journals of gerontology. Series A, Biological

VOLUME: 62

Page Numbers: 543-9

Journal Abbreviation: J. Gerontol. A Biol. Sci. Med.

ISSN: 1079-5006

DAY: 3

MONTH: May

YEAR: 2007

Reliability of maximal voluntary muscle strength and power testing in older men. Information

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LANGUAGE: eng

NlmUniqueID: 9502837

Reliability of maximal voluntary muscle strength and power testing in older men. Keywords Mesh Terms:

KEYWORDS: Sports Equipment

MESH TERMS: physiology

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Grant and Affiliation Information for Reliability of maximal voluntary muscle strength and power testing in older men.

AFFILIATION: University of Southern California, Departments of Medicine and Biokinesiology & Physical Therapy, 1540 East Alcazar St., CHP-155, Los Angeles, CA 90089, USA. eschroed@usc.edu

Country: United States

AGENCY: United States NIA

GRANT: R01 AG18169

ACRONYM: AG

MEDLINETA: J Gerontol A Biol Sci Med Sci

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