Acute Whole-Body Vibration Exercise Promotes Favorable Handgrip Neuromuscular Modifications in Rheumatoid Arthritis: A Cross-Over Randomized Clinical
Table 2
Effect of acute whole-body vibration exercise on handgrip strength, electromyographic records of the flexor digitorum superficialis muscle, and wrist range of motion ().
Variable
Control
Sham
Vibration
Within-interventions
Between-interventions
Interaction
Power
Power
Power
HS
Baseline (kg)
20.03 (16.52-23.54)
20.68 (17.29-24.07)
19.38 (16.18-22.58)
0.0014
13.70
0.86
1.00
0.3667
1.02
0.37
0.82
0.0178
4.24
0.73
0.99
After (kg)
20.45 (16.79-24.11)
20.95 (17.40-24.50)
21.77 (18.06-25.48)#
EMGrms
Baseline (% rms)
64.53 (57.77-71.29)
62.82 (56.83-62.81)
53.84 (46.93-60.79)
0.1821
1.91
0.34
0.76
0.0002
9.29
0.87
1.00
0.7403
0.30
0.17
0.39
After (% rms)
62.86 (55.64-70.08)
62.76 (56.81-68.71)
48.92 (39.34-58.50)#
FLEXION ROM
Baseline (°)
79.48 (75.70-83.26)
77.71 (73.58-81.84)
77.28 (73.36-81.20)
0.0059
9.48
0.77
0.99
0.6424
0.44
0.22
0.49
0.0086
5.05
0.76
0.99
After (°)
77.67 (73.62-81.72)
81.10 (77.17-85.03)
81.57 (76.91-86.23)#
Extension ROM
Baseline (°)
49.00 (41.37-56.63)
52.71 (44.50-60.92)
50.10 (42.86-57.34)
0.0064
9.28
0.84
1.00
0.0218
4.01
0.62
0.99
0.0404
3.34
0.58
0.99
After (°)
51.86 (46.19-57.53)
53.95 (45.18-62.72)
58.10 (51.85-64.35)#
HS: handgrip strength; EMGrms: electromyographic records; ROM: range of motion; whole-body vibration of 45 Hz/2 mm. Measures performed at baseline and after the experimental interventions. Data are presented as mean (95% confidence interval), values, and eta partial . subjects in each experimental test. represents the difference () compared to baseline. # represents the difference () between the interventions (after). There was no difference between the interventions at baseline.
