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Volume 90, Issue 9 , Pages 1541-1547 , September 2009

Intratester Reliability and Validity of Concentric Measurements Using a New Hand-Held Dynamometer

The mechanical arm.

The mechanical arm.
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The new HHD with simultaneous force and angle measurement.

The new HHD with simultaneous force and angle measurement.
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Photos of (A) the Biodex measurement and (B) HHD measurement.

Photos of (A) the Biodex measurement and (B) HHD measurement.
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Three profiles of the mechanical arm measured with (A) the HHD and (B) the Biodex.

Three profiles of the mechanical arm measured with (A) the HHD and (B) the Biodex.
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Angle versus time graphs showing repeated measurements for (A) the HHD on profile A, (B) on profile B, (C) on profile C, and (D) the Biodex measurement with speed setting at 60°/s on profile B.

Angle versus time graphs showing repeated measurements for (A) the HHD on profile A, (B) on profile B, (C) on profile C, and (D) the Biodex measurement with speed setting at 60°/s on profile B.
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LOA plots for (A) peak torque, (B) angle of peak torque, (C) start ROM, and (D) end ROM. Circles represent the measured difference between the 2 devices for the 3 profiles. The solid line represents t

LOA plots for (A) peak torque, (B) angle of peak torque, (C) start ROM, and (D) end ROM. Circles represent the measured difference between the 2 devices for the 3 profiles. The solid line represents the mean difference between the 2 devices; the dashed lines represent the lower and upper LOA.
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Supported by the Foundation for Research, Science and Technology of New Zealand (contract no. C08X040).

A commercial party having a direct financial interest in the results of the research supporting this article has not conferred or will not confer a financial benefit on the author or one or more of the authors. Janssen and Le-Ngoc are employees of Industrial Research Limited (IRL), which developed the hand-held dynamometer. IRL intends to commercialize the dynamometer through joint venture or licensing agreement with a commercial party, which has not yet been identified. The authors will not be involved in the commercialization process, and no financial benefit will be conferred on the authors.

Reprints are not available from the author.

PII: S0003-9993(09)00332-3

doi: 10.1016/j.apmr.2009.02.021

« Previous Next » Archives of Physical Medicine and Rehabilitation
Volume 90, Issue 9 , Pages 1541-1547 , September 2009