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J Hand Ther. 2012 Oct-Dec;25(4):397-404; quiz 405. doi: 10.1016/j.jht.2012.04.004. Epub 2012 Jul 12.

Hand grip function assessed by the box and block test is affected by object surfaces.

Author information

1
Department of Industrial and Manufacturing Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI 53211, USA. seon@uwm.edu

Abstract

STUDY DESIGN:

N/A.

BACKGROUND:

One of the hand function assessment tools is the Box and Block Test (BBT).

PURPOSE:

To examine if the BBT score is affected by grip surfaces.

METHODS:

Thirteen adults performed the BBT with wooden, rubber-covered, and paper-covered blocks. The BBT scores and time for seven movements (finger closing, contact to lift-off, transport before barrier, transport after barrier, release, return, and reach) were compared across the three block types.

RESULTS:

The mean BBT score was 8% higher for the rubber blocks than the paper and wooden blocks (p<0.01) due to the reduced time for contact to lift-off (when the finger touches a block until the block is lifted).

CONCLUSIONS:

Hand function assessments should be controlled for object surfaces. Therapists may vary grip difficulties by changing object surfaces. Redesigning daily objects with high-friction surfaces may increase grip function.

LEVEL OF EVIDENCE:

N/A.

PMID:
22796008
DOI:
10.1016/j.jht.2012.04.004
[Indexed for MEDLINE]

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