Interactions of Aging, Overload, and Creatine Supplementation in Rat Plantaris Muscle

Table 2

Pre- and posttreatment weight of young and aging animals.

	Young			Aging
	Weight (Pre; g)	Weight; (Post; g)	Change in Weight (Post-Pre; g)	Weight; (Pre; g)	Weight; (Post; g)	Change in Weight (Post-Pre; g)
Control	273.3±27.8	296.0±31.7	+22.8±18.6	393.0±25.8	416.8±27.5^d	+23.8±9.1
Creatine	285.4±25.6	324.9±25.4	+39.5±14.4	373.8±15.4	408.9±19.7^d	+35.2±8.3^a
Overload	278.9±12.7	302.6±18.2	+23.8±7.3	411.3±21.5	388.8±23.2^d	−22.6±12.2^bc
Overload + creatine	272.8±12.4	302.3±11.6	+29.5±7.6	394.2±15.0	384.1±18.0^d	−10.1±9.5^c

Data presented as Mean ± SD. ^a𝑃<0.001, greater than overload and OCr groups; ^b𝑃<0.05, less than OCr group; ^c𝑃<0.001, less body weight increase than young; ^d𝑃<0.05, heavier than same treatment in young.