Reliability and Validity of the Multiaxis Profile Dynamometer with Younger and Older Participants

Overview

Journal J Hand Ther

Specialty Rehabilitation Medicine

Date 2010 May 12

PMID 20456919

Citations 9

Authors

Curt B Irwin

Mary E Sesto

Affiliations

Soon will be listed here.

Abstract

Study Design: Clinical Measurement.

Introduction: Grip strength has been administered for many years with a wide variety of instruments and for very different purposes.

Purpose Of The Study: To examine the reliability and validity of a new grip measurement device, the multiaxis profile (MAP) dynamometer, compared with the Baseline dynamometer (Fabrication Enterprises Inc., White Plains, NY) and vigorimeter.

Methods: Twenty-eight participants (<30 yr, n=14; and >65 yr, n=14) completed grip strength testing using all three devices. Measurements were obtained at baseline and one to two weeks later.

Results: Intraclass correlation coefficients (ICCs) for the MAP ranged from 0.94 to 0.99. The other two devices had ICCs of 0.95-0.98. Correlations among the MAP dynamometer, the Baseline dynamometer, and the vigorimeter were 0.78-0.90. The results indicate high concurrent validity among all the three devices and that all devices are reliable instruments to measure the grip strength of both younger and older adults.

Conclusions: In addition to measuring grip strength, the MAP dynamometer measures other grip-related information, such as grip force vectors, rate of force buildup, and force variability. This additional grip information may improve our understanding of hand function and changes because of aging.

Level Of Evidence: n/a.

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