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Reference Values for Knee Extension Strength Obtained by Hand-Held Dynamometry from Apparently Healthy Older Adults:

R W Bohannon1

  • 1Richard W Bohannon, Department of Physical Therapy, College of Pharmacy and Health Sciences, Campbell University, 4150 US421 South, Lillington, North Carolina, 27546, USA Phone: +1 (910) 814-4951; Fax: +1 (910) 814-4951;

The Journal of Frailty & Aging
|November 23, 2017
PubMed
Summary

This study provides normative reference values for knee extension strength in older adults aged 60-79. These meta-analyzed values offer improved insights compared to individual studies, highlighting the need for larger population data.

Keywords:
Older adultsdynamometryreference valuesstrength

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Area of Science:

  • Gerontology
  • Musculoskeletal Health
  • Biomedical Engineering

Background:

  • Establishing normative reference values for muscle strength is crucial for assessing functional capacity in older adults.
  • Hand-held dynamometry is a common method for measuring isometric muscle strength.
  • Previous studies on knee extension strength in older adults have limitations in sample size and scope.

Purpose of the Study:

  • To derive normative reference values for knee extension strength in adults aged 60 to 79 years.
  • To consolidate existing data using meta-analysis for more robust reference values.
  • To identify gaps in current data and inform future research needs.

Main Methods:

  • A systematic literature search was conducted using PubMed and hand-searching.
  • Summary data from three relevant studies were included.
  • Meta-analysis was used to combine data stratified by age, gender, and limb dominance.

Main Results:

  • Normative reference values for knee extension strength, normalized to body weight, were established.
  • Strength varied across age and gender groups, with a range from 35.6% (70-79 year old women, nondominant side) to 48.8% (60-69 year old men, nondominant side).
  • The derived values are more informative than those from individual studies.

Conclusions:

  • Meta-analysis provides valuable normative reference values for knee extension strength in older adults.
  • These values can aid in clinical assessment and research.
  • There is a need for normative data derived from larger, population-based samples to enhance generalizability.