TABLE 3.

Summary of the lean mass results from the overall and subgroup meta-analyses between the comparator (RDA) and intervention (>RDA) groups¹

	n	WMD (95% CI), kg	P value2	τ2	I 2, %	χ2	P value3
All	22	0.324 (0.011, 0.637)	0.043	0.258	51.9	43.66	0.003
With ER	14	0.361 (0.056, 0.666)	0.02	0.066	20.6	16.38	0.229
With RT	2	0.65 (0.16, 1.14)	0.009	0.000	0.0	0.92	0.338
Without RT	12	0.25 (−0.094, 0.60)	0.153	0.056	15.3	12.99	0.294
Without ER	8	0.23 (−0.44, 0.89)	0.503	0.643	73.3	26.26	0.000
With RT	1	—	—	—	—	—	—
Without RT	7	0.08 (−0.59, 0.75)	0.810	0.572	72.8	22.1	0.001
With RT	3	0.77 (0.23, 1.31)	0.005	0.044	18.4	2.45	0.294
Without RT	19	0.22 (−0.12, 0.56)	0.198	0.250	49.4	35.6	0.008
Age
Minimum inclusion age >50 y	5	0.91 (0.24, 1.60)	0.008	0.339	59.6	9.89	0.042

¹ER, energy restriction; RT, resistance training; WMD, weighted mean difference.

² P value for WMD.

³ P value for χ².