This article and any supplementary material should be cited as follows: Nunes PM, de Oliveira DG, Aruin AS, dos Santos MJ. Relationship between hand function

This article and any supplementary material should be cited as follows: Nunes PM, de Oliveira DG, Aruin AS, dos Santos MJ. Relationship between hand function and grip force control in individuals with hand osteoarthritis. J Rehabil Res Dev. 2012;49(6):855–66.http://dx.doi.org/10.1682/JRRD.2011.06.0117

Slideshow ProjectDOI:10.1682/JRRD.2011.06.0117JSP

Relationship between hand function and grip force control in women with hand osteoarthritis

Paula Martins Nunes, PT; Diana Guimarães de Oliveira, PT; Alexander S. Aruin, PhD; Marcio José dos Santos, PT, MS, PhD



• Aim – Understand relationship between clinical tests of hand function

and measures of grip force control in women with hand osteoarthritis (OA).

• Relevance– Hand OA is most common joint disorder

• Affects ~70% of people 65 and older.

– Characterized by pain, stiffness, and swelling of finger joints. • Contributes to decreased grip strength and hand function,

significantly limiting everyday manual activities.



Methods• 10 females with hand OA

and 10 age-matched nondisabled controls.

• Clinical tests: – Disabilities of the Arm,

Shoulder and Hand (DASH), Semmes-Weinstein Monofilament Test, visual analog scale (VAS), Moberg Pickup Test with eyes open/ (MPUT-EO/EC), maximum isometric grip force (MIGF).

• Experimental procedure: – Instrumented cup equipped

with force sensor and triaxial accelerometer.

– Subjects lifted and placed cup on 20 cm high box 20 cm away.

• Variables : – Force at moment of liftoff

(FMLO), grip force peak (GFP), latency, peak velocity of instrumented object.



Results• Individuals with hand OA:– Performed MPUT test slower.– Significantly lower MIGF.– Significantly higher FMLO, GFP, latency.

• Correlations:– DASH: moderate positive correlation with MPUT-EC, strong

correlation with VAS, strong positive correlation with latency. – MPUT-EO/EC: strong positive correlation with latency. – FMLO: strong positive correlation with DASH & MPUT-EO,

moderate correlation with MPUT-EC.



Conclusion• Principal result: – Strong positive correlations between grip force control

variables and some hand function and dexterity parameters in patients with hand OA.

• Rehabilitation programs that include grip force control training might help improve hand function and dexterity.

• May prompt launch of new, larger investigations focusing on effects of grip force control on hand functionality.

Documents

This article and any supplementary material should be cited as follows: Nunes PM, de Oliveira DG, Aruin AS, dos Santos MJ. Relationship between hand function