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Fish-oil supplementation enhances the effects of strength training in elderly women
American Journal of Clinical Nutrition, 01/18/2012
Rodacki CLN et al. – Strength training increased muscle strength in elderly women. The inclusion of FO supplementation caused greater improvements in muscle strength and functional capacity.
Methods- Forty-five women (aged 64 ± 1.4 y) were randomly assigned to 3 groups.
- One group performed strength training only (ST group) for 90 d, whereas the others performed the same strength-training program and received FO supplementation (2 g/d) for 90 d (ST90 group) or for 150 d (ST150 group; supplemented 60 d before training).
- Muscle strength and functional capacity were assessed before and after the training period.
- No differences in the pretraining period were found between groups for any of the variables.
- The peak torque and rate of torque development for all muscles (knee flexor and extensor, plantar and dorsiflexor) increased from pre- to posttraining in all groups.
- However, the effect was greater in the ST90 and ST150 groups than in the ST group.
- The activation level and electromechanical delay of the muscles changed from pre- to posttraining only for the ST90 and ST150 groups.
- Chair-rising performance in the FO groups was higher than in the ST group.