Table 4.

Baseline and 6-month muscle group strength

Muscle GroupTimePlacebo Cholecalciferol P Value
Grip strengthBaseline21 (17, 25)23 (19, 28)
6 mo21 (17, 24)24 (21, 28)0.28
Shoulder abductionBaseline5 (4, 6)5 (4, 6)
6 mo6 (4, 7)7 (5, 9)0.53
Elbow flexionBaseline12 (9, 14)12 (9, 14)
6 mo14 (11, 16)15 (12, 18)0.63
Elbow extensionBaseline10 (8, 11)10 (9, 12)
6 mo11 (19, 13)13 (11, 14)0.41
Hip flexionBaseline12 (10, 15)13 (11, 15)
6 mo16 (14, 17)16 (15, 18)0.83
Knee flexionBaseline11 (9, 12)12 (10, 13)
6 mo14 (12, 16)13 (11, 15)0.93
Knee extensionBaseline15 (12, 17)14 (12, 17)
6 mo19 (16, 21)19 (16, 22)0.97
  • Data are shown in kilograms of force (95% confidence interval). P values represent differences in strength between treatment groups over time (repeated-measures ANOVA). There were 30 patients in each group at baseline and 24 patients in the placebo group and 21 patients in the cholecalciferol group at 6 months.