Jessie C. Janssen, MSc, Lan Le-Ngoc, PhD 

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Presentation transcript:

Intratester Reliability and Validity of Concentric Measurements Using a New Hand-Held Dynamometer  Jessie C. Janssen, MSc, Lan Le-Ngoc, PhD  Archives of Physical Medicine and Rehabilitation  Volume 90, Issue 9, Pages 1541-1547 (September 2009) DOI: 10.1016/j.apmr.2009.02.021 Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 1 The mechanical arm. Archives of Physical Medicine and Rehabilitation 2009 90, 1541-1547DOI: (10.1016/j.apmr.2009.02.021) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 2 The new HHD with simultaneous force and angle measurement. Archives of Physical Medicine and Rehabilitation 2009 90, 1541-1547DOI: (10.1016/j.apmr.2009.02.021) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 3 Photos of (A) the Biodex measurement and (B) HHD measurement. Archives of Physical Medicine and Rehabilitation 2009 90, 1541-1547DOI: (10.1016/j.apmr.2009.02.021) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 4 Three profiles of the mechanical arm measured with (A) the HHD and (B) the Biodex. Archives of Physical Medicine and Rehabilitation 2009 90, 1541-1547DOI: (10.1016/j.apmr.2009.02.021) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 5 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. Archives of Physical Medicine and Rehabilitation 2009 90, 1541-1547DOI: (10.1016/j.apmr.2009.02.021) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 6 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. Archives of Physical Medicine and Rehabilitation 2009 90, 1541-1547DOI: (10.1016/j.apmr.2009.02.021) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions