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Journal of the Korean Academy of Rehabilitation Medicine 1989;13(2):5.
Grip and Pinch Strength Evaluation in Patients with Rheumatoid Arthritis
Hong Sik Park, M.D., Kang Mok Lee, M.D. , Sung Yoon Kim, M.D.*
Center for Rheumatic Diseases*, College of Medicine, Hanyang University, Seoul, Korea
류마티양 관절염 환자에서의 Grip 및 Pinch Strength에 대한 연구
박홍식, 이강목, 김성윤*
한양대학교 의과대학 재활의학교실 및 *내과학교실

The intra-observer, diurnal and week-to-week variations in grip and pinch strength was studied in patients with rheumatoid arthritis.

The changes in grip and pinch strength in duration of the illness and medications was observed and the correlation between grip and pinch strength was studied, as following:

A high correlation was seen between grip and pinch strength. In the intra-observer errors studies, the highest grip and pinch strength scores occured in the 3rd test, but no statistically significant change was recorded among 1st, 2nd, 3rd. In week-to-week variations, a statistically significant change was recorded.

In the diurnal variations, some data were statistically significant, but others were not statistically significant. In clinical trials, measurement of grip and pinch strength should not only be performed by one observer for each patient but measurements should be made at the same time of day because of its diurnal variation.

Key Words: Grip strength, Pinch strength, Rheumatoid arthritis


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