Table 2

Results of subgroup meta-analyses to investigate source of heterogeneity from original meta-analysis on delayed-onset muscle soreness (DOMS; figure 3) and muscle power (figure 6)

Subanalysis	Number of studies	Hedges' g	SE	Variance	95% CI	Z	P	Q	I2 (%)
DOMS 24 h	12	0.348	0.139	0.019	0.076 to 0.621	2.506	0.012	37.3	70.5
DOMS 48 h	12	0.671	0.140	0.020	0.396 to 0.946	4.784	0.000	28.0	60.8
DOMS 72 h	8	0.596	0.167	0.028	0.268 to 0.924	3.559	0.000	9.8	28.6
DOMS 96 h	8	0.632	0.171	0.029	0.296 to 0.967	3.688	0.000	9.5	26.6
DOMS 24 h – eccentric exercise	10	0.116	0.151	0.023	−0.179 to 0.412	0.772	0.440	20.6	56.0
DOMS 24 h – high intensity exercise	2	1.675	0.360	0.130	0.969 to 2.381	4.650	0.000	0.7	0.0
DOMS 48 h – eccentric exercise	10	0.532	0.153	0.023	0.232 to 0.832	3.476	0.001	20.5	56.1
DOMS 48 H – high intensity exercise	2	1.391	0.349	0.122	0.707 to 2.076	3.986	0.000	2.5	59.3
Muscle power 24 h	3	0.648	0.242	0.059	0.174 to 1.123	2.678	0.007	2.2	9.3
Muscle power 48 h	3	0.598	0.236	0.056	0.135 to 1.061	2.529	0.011	0.4	0.0
Muscle power 72 h	3	0.539	0.259	0.067	0.032 to 1.046	2.083	0.037	18.9	89.4