The reliability of upper- and lower-extremity strength testing in a community survey of older adults

Kenneth Ottenbacher, Laurence G. Branch, Laura Ray, Vera A. Gonzales, Mary Peek, Martha R. Hinman

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

Objective: To examine the stability (test-retest reliability) of strength measures in older adults obtained by nontherapist lay examiners by using a hand-held portable muscle testing device (Nicholas Manual Muscle Tester). Design: A prospective relational design was used to collect test-retest data for 1 male subject by using 27 lay raters who completed intensive training in manual muscle. Setting: Data were collected from older Mexican-American adults living in the community. Participants: Twenty-seven lay raters who completed intensive training in manual muscle testing for a field-based assessment and interview of older adults and 63 Mexican-American subjects completing wave 4 of the Hispanic Established Populations for the Epidemiologic Study of the Elderly. Interventions: Training involved reviewing a manual describing each testing position followed by approximately 6 hours of instruction and practice supervised by an experienced physical therapist. Lay raters then collected test-retest information on older Mexican-American subjects. Main Outcome Measure: Stability (test-retest) for a portable manual muscle testing device. Results: Intraclass correlation coefficients (ICCs) were computed for the 27 lay raters examining 1 male subject (2 trials) and 12 lay raters assessing 63 older Mexican-American adults (1 practice and 2 trials recorded). The ICC values for the first 27 lay raters ranged from .74 to .96. The ICC values for the latter 12 lay raters ranged from .87 to .98. No differences were found in ICC values between male or female subjects. Conclusions: Stable and consistent information for upper- and lower-extremity strength was collected from the older adults participating in this study. The results suggest reliable information can be obtained by lay raters using a portable manual muscle testing device if the examiners receive intensive training.

Original languageEnglish (US)
Pages (from-to)1423-1427
Number of pages5
JournalArchives of Physical Medicine and Rehabilitation
Volume83
Issue number10
DOIs
StatePublished - Oct 1 2002

Fingerprint

Lower Extremity
Muscles
Equipment and Supplies
Physical Therapists
Hispanic Americans
Reproducibility of Results
Surveys and Questionnaires
Epidemiologic Studies
Hand
Outcome Assessment (Health Care)
Interviews
Population

Keywords

  • Aging
  • Hispanic Americans
  • Muscles
  • Rehabilitation
  • Reliability and validity

ASJC Scopus subject areas

  • Rehabilitation

Cite this

The reliability of upper- and lower-extremity strength testing in a community survey of older adults. / Ottenbacher, Kenneth; Branch, Laurence G.; Ray, Laura; Gonzales, Vera A.; Peek, Mary; Hinman, Martha R.

In: Archives of Physical Medicine and Rehabilitation, Vol. 83, No. 10, 01.10.2002, p. 1423-1427.

Research output: Contribution to journalArticle

Ottenbacher, Kenneth ; Branch, Laurence G. ; Ray, Laura ; Gonzales, Vera A. ; Peek, Mary ; Hinman, Martha R. / The reliability of upper- and lower-extremity strength testing in a community survey of older adults. In: Archives of Physical Medicine and Rehabilitation. 2002 ; Vol. 83, No. 10. pp. 1423-1427.
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