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

Table 4

Percent fiber type of plantaris muscle for young and aging animals.

	Young			Aging
	Type I %	Type IIA %	Type IIB/D %	Type I %	Type IIA %	Type IIB/D %
Control	8±2^e	19±3	74±4	14±3^a	13±4^a	73±2
Creatine	6±4^e	22±4^f	71±6^d	13±7^a,d	11±3^a,d	77±7
Overload	19±7^c	20±5	62±5^b,g	18±7	18±6	64±9^b,h
Overload + creatine	10±4^d	24±7	66±9^b	17±5^a	16±5^a,g	67±5^g

Data presented as Mean ± SD. aaging significantly different than young within treatment 𝑃<0.05; bsignificantly different than control within age group 𝑃<0.05; csignificantly different than control within age group 𝑃<0.001; dsignificantly different than overload within age group 𝑃<0.05; esignificantly different than overload within age group 𝑃<0.001; fyoung significantly different than old within treatment 𝑃<0.001; gsignificantly different than creatine within age group 𝑃<0.05; hsignificantly different than creatine within age group 𝑃<0.001.