The influence of ACE ID and ACTN3 R577X polymorphisms on lower-extremity function in older women in response to high-speed power training

Table 2 Effect of ACTN3 genotype in older Caucasian women in test performance gains during training

		Moments		Repeated measures 2-way ANOVA
Performance measures	ACTN3 genotype (n = 139)	T1	T2	Training effect (within subjects) P value	Genotype effect (between subjects) P value
Performance measures	ACTN3 genotype (n = 139)	х±σ	х±σ	Training effect (within subjects) P value	Genotype effect (between subjects) P value
S10 (m/s)	RX (n = 54)	5.5 ± 0.7	4.9 ± 0.6^a	0.001	0.044
	RR (n = 52)	5.6 ± 0.6	4.8 ± 0.6^b
	XX (n = 33)	5.9 ± 0.9	5.2 ± 0.9
P*		0.080	0.050
GUG (sec.)	RX	5.3 ± 0.9	4.7 ± 0.7	0.001	0.477
	RR	5.2 ± 0.8	4.6 ± 0.5
	XX	5.3 ± 0.8	4.9 ± 0.7
P*		0.615	0.139

Legend: Values are mean ± SD; n, no. of subjects. Pre-training and post-training, before (T1) and after (T2) 12-week of high-speed power training, respectively. All reported values were measured at maximum effort. *P values (P < 0.001) were computed by one-way and 2-way ANOVA. ^aP < 0.001, RX significantly different from XX; ^bP < 0.001, RR significantly different from XX.

ISSN: 1471-2318