Table 2

Meta-regression analysis: frequency, intervention duration and session duration (adjusted model*)

Outcome	Frequency, sessions per week				Duration of intervention, weeks				Duration of session, minutes
Outcome	n	β	95% CI	P	n	β	95% CI	P	n	β	95% CI	P
Body mass	42	−0.0020	−0.0390 to 0.0429	0.924	42	0.0007	−0.0097 to 0.0110	0.898	39	−0.0016	−0.0077 to 0.0045	0.608
BMI	29	−0.0068	−0.0552 to 0.0417	0.785	29	0.0008	−0.0111 to 0.0126	0.900	28	0.0018	−0.0051 to 0.0086	0.614
Body fat	29	0.0136	−0.0542 to 0.0815	0.694	29	−0.0005	−0.0119 to 0.0110	0.938	26	−0.0024	−0.0094 to 0.0046	0.506
WC	18	0.0041	−0.0523 to 0.0604	0.887	18	−0.0016	−0.0276 to 0.0244	0.903	18	−0.0009	−0.0127 to 0.0110	0.886
WHR	14	0.0046	−0.1122 to 0.1215	0.938	14	0.0020	−0.0126 to 0.0164	0.785	14	0.0009	−0.0128 to 0.0145	0.899
SBP	35	0.0418	−0.0058 to 0.0885	0.085	35	0.0073	−0.0153 to 0.0288	0.527	34	−0.0075	−0.0150 to −0.000	0.050
DBP	33	−0.0247	−0.0743 to 0.0249	0.328	33	0.0135	0.0061 to 0.0330	0.177	32	−0.0029	−0.0096 to 0.0039	0.408
TC	38	0.0393	−0.0163 to 0.0950	0.166	38	0.0108	−0.0108 to 0.0233	0.093	35	−0.0038	−0.0114 to 0.0039	0.338
HDL-C	36	0.0035	−0.0492 to 0.0562	0.895	36	0.0012	−0.0103 to 0.0127	0.838	33	−0.0004	−0.0102 to 0.0093	0.931
LDL-C	35	0.0367	−0.0172 to 0.0905	0.182	35	0.0202	0.0081 to 0.0323	0.001	33	−0.0055	−0.0151 to 0.0040	0.256
TG	33	−0.0004	−0.0534 to 0.0526	0.989	33	0.0000	−0.0183 to 0.0183	0.999	31	0.0077	0.0008 to 0.0146	0.029
FG	17	−0.0420	−0.1372 to 0.0533	0.388	17	−0.0085	−0.0476 to 0.0306	0.671	16	−0.0062	−0.0170 to 0.0046	0.261
VO_2max	31	−0.0125	−0.0639 to 0.0389	0.633	31	0.0254	0.0043 to 0.0465	0.018	29	0.0071	−0.0024 to 0.0165	0.142

*Adjusted for age.
β, linear regression coefficient; BMI, body mass index (kg/m²); DBP, diastolic blood pressure (mm Hg); FG, fasting glucose (mmol/L); HDL-C, high-density lipoprotein cholesterol (mmol/L); LDL-C, low-density lipoprotein cholesterol (mmol/L); n, number of comparisons, body mass (kg); SBP, systolic blood pressure (mm Hg); TC, total cholesterol (mmol/L); TG, triglycerides (mmol/L); VO_2max, maximal oxygen uptake (mL/(kg·min); WC, waist circumference (cm); WHR, waist-to-hip ratio.