Comparison 9. SENSITIVITY ANALYSES (Placebo only comparisons).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
9.1 Pain (/100): Earliest follow‐up	2		Mean Difference (IV, Random, 95% CI)	Subtotals only
9.1.1 Exercise vs. Placebo treatment	2	300	Mean Difference (IV, Random, 95% CI)	‐8.85 [‐15.12, ‐2.58]
9.2 Function (/100): Earliest follow‐up	3		Mean Difference (IV, Random, 95% CI)	Subtotals only
9.2.1 Exercise vs. Placebo treatment	3	400	Mean Difference (IV, Random, 95% CI)	‐5.60 [‐11.19, ‐0.01]