Comparison 2. Electrical Stimulation (Patterned electrical stimulation) versus Placebo (End of treatment ‐ 10 weeks).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Grip strength	1	9	Mean Difference (IV, Fixed, 95% CI)	458.00 [309.76, 606.24]
2 Button test	1	9	Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
3 Ulnar deviation of the Index finger	1	9	Mean Difference (IV, Fixed, 95% CI)	37.0 [21.26, 52.74]
4 Profundus Pinch Strength	1	9	Mean Difference (IV, Fixed, 95% CI)	59.0 [33.37, 84.63]
5 Superficialis Pinch Strength	1	9	Mean Difference (IV, Fixed, 95% CI)	97.0 [62.57, 131.43]
6 Maximum Voluntary Force Generated by the Index Finger during Isometric Abduction	1	9	Mean Difference (IV, Fixed, 95% CI)	256.0 [220.93, 291.07]
7 Fatigue Resistance of the First Dorsal Interosseous During Sustained Maximum Voluntary Contraction	1	9	Mean Difference (IV, Fixed, 95% CI)	316.0 [224.75, 407.25]