Moderate Velocity Strength Training Increases Peak Muscle Power Quality in Older Women

Actas do 2º Simpósio Internacional de Performance Desportiva/CIDESD

“…These results seem to suggest that α-actinin-3 deficiency is required for optimal muscle performance at high velocity (sprint or power activities performed by fast muscle fibers). In addition, some studies also found a higher frequency of 577X genotype in elite endurance athletes which seem to suggest that this variant may also provide same assistance in identifying individuals with potential for long-distance performance sports and events (Delmonico et al, 2007;Druzhevskaya, Ahmetov, Astratenkova, & Rogozkin, 2008;Yang et al 2003). Even so, other findings are known to be contradictory (Ahmetov et al, 2010).…”

“…Additionally, Delmonico et al (2007) investigated baseline knee extensor concentric peak power during 10 weeks of unilateral knee ACTN3 R577X polymorphism | 71 extensor strength training in older men (n = 71; 65-81 years) and women (n = 86; 64-73 years). In men no differences in baseline absolute was observed between ACTN3 genotype groups but in women, the XX genotype group had an absolute peak power that was higher than the RR (p = .005).…”