Optimization of post-activation potentiation in girls and women
- 23.04.2024
- Original Article
Erschienen in:
- Verfasst von
- Andrew McKiel
- Stacey Woods
- McKenna Faragher
- Gregory Taylor
- Rene Vandenboom
- Bareket Falk
- Erschienen in
- European Journal of Applied Physiology | Ausgabe 9/2024
Abstract
Background
Maximal conditioning contractions (CCs) can lead to the enhancement of evoked-twitch characteristics in human skeletal muscle. This phenomenon is termed post-activation potentiation (PAP). In the knee extensors, PAP is greater in men compared with boys. In adults, the optimal CC duration for PAP is ~ 10 s. We examined child–adult differences in PAP among females and aimed to determine the optimal CC duration in girls and women.
Methods
Eleven girls (9.3 ± 1.4 years) and 13 women (23.4 ± 2.7 years) participated in this study. Maximal isometric evoked twitches were recorded in the knee extensors before and after 4 maximal CCs of different durations (5, 10, 20, and 30 s), in a random order. PAP was calculated as the percent-change in peak torque (Tpeak) and peak rate of torque development (RTDpeak) after each CC.
Results
There was a group-by-duration interaction (p < 0.001), reflecting greater Tpeak PAP in women compared with girls following 5 and 10 s CCs, and lower RTDpeak PAP in women following the 30 s CC. The 5 and 10 s CCs lead to the greatest Tpeak and RTDpeak PAP amongst the women while there were no differences between CC durations in girls.
Conclusion
After both a 5 and 10 s CC, women have greater PAP compared with girls. The optimal CC duration for the knee extensors in women appears to be ~ 5-10 s, while CC durations between 5 and 30 s do not appear to affect levels of PAP in girls.
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- Titel
- Optimization of post-activation potentiation in girls and women
- Verfasst von
-
Andrew McKiel
Stacey Woods
McKenna Faragher
Gregory Taylor
Rene Vandenboom
Bareket Falk
- Publikationsdatum
- 23.04.2024
- Verlag
- Springer Berlin Heidelberg
- Erschienen in
-
European Journal of Applied Physiology / Ausgabe 9/2024
Print ISSN: 1439-6319
Elektronische ISSN: 1439-6327 - DOI
- https://doi.org/10.1007/s00421-024-05475-6
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