Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Inter-Individual Rapid Force Improvements after Mixed Session and Traditional Periodization in Aging Adults: A Randomized Trial
Ist Teil von
Journal of science in sport and exercise (Online), 2021-05, Vol.3 (2), p.125-137
Ort / Verlag
Singapore: Springer Singapore
Erscheinungsjahr
2021
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Background
Different periodization models have been widely used to improve maximum and rapid force in aging adults. However, it is unclear if some specific model can influence the remarkable heterogeneity of responsiveness to rapid torque improvements following resistance training.
Aims
Compare the effects of mixed session periodization (MSP) and traditional (TP) models on neuromuscular performance and individual responsiveness in aging adults.
Methods
Twenty-two aging men and women (64.6 ± 5.2 years old; 1.68 ± 0.1 m; 77.8 ± 16.0 kg) completed the intervention period. They were assigned into MSP (
n
= 11) or TP (
n
= 11) resistance training for lower limbs. The outcome measures normalized dynamic leg press (5-RM:
BM
), absolute and normalized knee isometric peak torque (PT and PT:
BM
) and rate of torque development, and impulse were assessed at baseline and after three blocks of a 9-wk resistance training (3 sessions per week). Thigh leg lean mass was assessed by dual-energy x-ray absorptiometry at baseline and after the intervention.
Results
Similar increases were observed for 5-RM:
BM
(MSP: 28.8% ± 13.5% and TP: 26.4% ± 7.6%,
P
< 0.001), PT (MSP: 223.7 ± 50.7 N·m and TP: 189.9 ± 58.6 N·m,
P
< 0.001), but it was not observed for PT:
BM
(MSP: 16.4% ± 16.5% and TP: 4.7% ± 9.2%,
P
> 0.05). Absolute and normalized RTD remained unchanged throughout intervention (
P
> 0.05), but both groups improved impulse (MSP: 22.1% ± 25.7% and TP: 12.6% ± 45.2%,
P
< 0.001). Only MSP responders (
n
= 5) presented significant time effect for absolute RTD (
P
< 0.05) and impulse (
P
< 0.05).
Conclusion
Although both periodization protocols increased 5-RM:
BM
and PT, it was not interchangeable through improvements in RTD even adopting power training session. Furthermore, these results suggest a great inter-individual variability following different periodization models for aging people.