Handgrip Strength Exercises Modulate Shoulder Pain, Function, and Strength of Rotator Cuff Muscles of Patients with Primary Subacromial Impingement Syndrome
Table 4
Effectiveness of the treatment duration on clinical characteristics: VAS, DASH, muscle strength, and pain-free active ROM measures, of patients with primary SAIS in conventional treated patients (control group) and handgrip-strengthening exercise treated patients (experimental group).
Clinical characteristics
value (2-tail)
BL
wk 4
wk 8
BL–wk 4
wk 4–wk 8
BL–wk 8
Pain VAS
Experimental group
<0.001
0.004
<0.001
Control group
0.007
0.030
0.003
Shoulder function-DASH score
Experimental group
<0.001
0.008
<0.001
Control group
0.009
0.017
0.003
Strength-Internal rotation
Experimental group
<0.001
0.062
<0.001
Control group
0.319
0.345
0.308
Strength-External rotation
Experimental group
<0.001
0.139
<0.001
Control group
0.330
0.356
0.335
Range of motion-Forward flexion
Experimental group
<0.001
0.008
<0.001
Control group
0.128
0.002
0.005
Range of motion-Abduction
Experimental group
<0.001
0.002
<0.001
Control group
0.213
0.001
0.009
Range of motion-Internal rotation
Experimental group
0.001
0.197
0.005
Control group
0.219
0.190
0.255
Range of motion-External rotation
Experimental group
<0.001
0.149
0.001
Control group
0.052
0.123
0.032
Data expressed as the . Wilcoxon signed rank test and Repeated Measure Analysis of variance (ANOVA).
