Outcome
|
Summary of findings
|
Quality of evidence assessment (GRADE)
|
---|
Effect sizea (95% CI)
|
n (trials)
|
Study limitations
|
Imprecision
|
Inconsistency
|
Publication bias
|
Quality
|
---|
Main outcome
|
0.15 (0.05 to 0.25)
|
1560 (20)
|
-1b
|
None
|
None
|
None
|
Moderate
|
Femoral neck BMD
|
0.09 (− 0.03 to 0.21)
|
1032 (14)
|
-1b
|
None
|
None
|
-1c
|
Low
|
Lumbar spine BMD
|
0.17 (0.04 to 0.30)
|
874 (11)
|
-1b
|
None
|
None
|
None
|
Moderate
|
- BMD bone mineral density, n number of participants
- apooled standardised effect size and 95% confidence intervals (positive value favours physical activity interventions)
- b > 50% of studies in the meta-analysis had a PEDro score < 6/10
- cSerious small study effects suggested by visual inspection of funnel plot or sensitivity analysis investigating the impact of removal of small studies on pooled estimate