Bodyweight Exercise of Lower and Upper Extremities for Female Patients with Rheumatoid Arthritis and the Timed Up-and-Go Test.

Abstract

At our hospital, orthopedic surgeons and physical and occupational therapists have developed bodyweight exercises for the lower and upper extremities (BELU) for rheumatoid arthritis (RA) patients, including walking [Timed Up-and-Go (TUG) test and figure-of-eight walking) and weight exercises. We aimed to clarify the effect of bodyweight exercise and the Health Assessment Questionnaire (HAQ) cut-off value for a TUG test result of 12 s (or longer) as a risk factor for a fall. All patients underwent BELU twice weekly at home for 6 weeks. We assessed the HAQ score, TUG time, and the strengths of quadriceps femoris, biceps brachii, handgrip, side pinch, and pulp pinch before and after the intervention. We analyzed the data of 42 participants. The mean age was 67.0 ± 12.1 years. The mean Disease Activity Score-28 for rheumatoid arthritis with erythrocyte sedimentation rate was 2.91 ± 0.91. The mean HAQ score was 0.69 ± 0.62. The dominant quadriceps femoris, biceps brachii, pulp pinch, and side pinch strengths were significantly strengthened. TUG time was improved from 9.0 ± 3.0 s to 8.6 ± 3.2 s (P=0.009). The receiver operating characteristic analysis revealed the cut-off value of HAQ for a TUG time of 12 s (or longer) was 1.0 (AUC 0.903, 95% confidence interval 0.792-1.0). Bodyweight exercises strengthened the muscles in female patients with RA, resulting in improved TUG test results. An indicative HAQ cut-off value of 1.0 (or greater) was identified for a TUG test result of 12 s or longer.