Comparison 2. Strength training versus no training in facioscapulohumeral muscular dystrophy.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Muscle strength elbow flexors ‐ maximum voluntary isometric contraction (kgF)	1	35	Mean Difference (IV, Fixed, 95% CI)	0.5 [‐0.76, 1.76]
2 Muscle strength elbow flexors ‐ dynamic strength (kgF)	1	35	Mean Difference (IV, Fixed, 95% CI)	1.20 [‐0.16, 2.56]
3 Muscle strength ankle dorsiflexors ‐ maximum isometric voluntary contraction (kgF)	1	35	Mean Difference (IV, Fixed, 95% CI)	0.43 [‐2.37, 3.23]
4 Muscle strength ankle dorsiflexors ‐ dynamic strength (kgF)	1	35	Mean Difference (IV, Fixed, 95% CI)	‐0.44 [‐2.26, 1.38]
5 Muscle endurance elbow flexors ‐ 30 s maximal isometric contraction (kgF‐s)	1	35	Mean Difference (IV, Fixed, 95% CI)	‐8.0 [‐42.01, 26.01]
6 Muscle endurance ankle dorsiflexors ‐ 30 s maximal isometric contraction (kgF‐s)	1	35	Mean Difference (IV, Fixed, 95% CI)	‐17.0 [‐34.82, 0.82]