. Author manuscript; available in PMC: 2010 Nov 24.

Published in final edited form as: Med Sci Sports Exerc. 2008 Apr;40(4):669–676. doi: 10.1249/MSS.0b013e318161aa82

TABLE 3.

Trained and untrained knee extensor muscle volume, subcutaneous fat, and intermuscular fat before and after strength training (ST) in men and women.

	Muscle Volume (cm³)		Subcutaneous Fat (cm²)		Intermuscular Fat (cm²)
	Baseline	After ST	Baseline	After ST	Baseline	After ST
Men (N = 78–82)^a
Trained leg	1845.5 ± 41.4	2015.1 ± 41.4^^	53.4 ± 2.8	54.2 ± 2.8	52.1 ± 2.6	51.6 ± 2.6
Untrained leg	1814.9 ± 40.9	1817.2 ± 40.9	54.0 ± 2.8	53.9 ± 2.8	51.2 ± 2.4	50.4 ± 2.4
Women (N = 95–98)^a
Trained leg	1172.8 ± 24.2	1268.7 ± 24.2^*	107.7 ± 5.0	107.3 ± 5.0	58.2 ± 3.1	56.3 ± 3.1
Untrained leg	1146.0 ± 25.3	1153.4 ± 25.3	105.3 ± 4.9	104.4 ± 4.9	58.7 ± 3.1	57.1 ± 3.1

Values are least squared means ± SE.

A range of sample sizes are provided to represent the range of subjects who completed baseline and post-ST testing for all variables. Missing data resulted from various reasons including injuries, missed testing sessions, and equipment failure.

Muscle volume covariates: height.

Change in the trained leg is significantly greater than change in the untrained leg (P < 0.001).

^†

Change in the trained leg minus change in the untrained leg is significantly greater than that for women (P < 0.001).

No significant within- or between-group changes in subcutaneous fat or intermuscular fat with ST when using the untrained leg as a control.