Skip to main content
Top

23-04-2024 | Original Article

Optimization of post-activation potentiation in girls and women

Authors: Andrew McKiel, Stacey Woods, McKenna Faragher, Gregory Taylor, Rene Vandenboom, Bareket Falk

Published in: European Journal of Applied Physiology

Login to get access

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.
Literature
go back to reference Godin G, Shephard RJ (1985) A simple method to assess exercise behavior in the community. Can J Appl Sport Sci 10(3):141–146PubMed Godin G, Shephard RJ (1985) A simple method to assess exercise behavior in the community. Can J Appl Sport Sci 10(3):141–146PubMed
go back to reference Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G (2000) Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyogr Kinesiol 10(5):361–374CrossRefPubMed Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G (2000) Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyogr Kinesiol 10(5):361–374CrossRefPubMed
go back to reference Mirwald RL, Baxter-jones AD, Bailey DA, Beunen GP, Baxter-jones DG, Bailey DA, Beunen GP (2002) An assessment of maturity from anthropometric measurements. Med Sci Sports Exerc 34(4):689–694PubMed Mirwald RL, Baxter-jones AD, Bailey DA, Beunen GP, Baxter-jones DG, Bailey DA, Beunen GP (2002) An assessment of maturity from anthropometric measurements. Med Sci Sports Exerc 34(4):689–694PubMed
go back to reference Tanner JM (1962) Growth at adolescence. Blackwell Scientific Publications, Oxford Tanner JM (1962) Growth at adolescence. Blackwell Scientific Publications, Oxford
go back to reference Vandenboom R (2017) Modulation of skeletal muscle contraction by myosin phosphorylation. Compr Physiol 7(171):212 Vandenboom R (2017) Modulation of skeletal muscle contraction by myosin phosphorylation. Compr Physiol 7(171):212
Metadata
Title
Optimization of post-activation potentiation in girls and women
Authors
Andrew McKiel
Stacey Woods
McKenna Faragher
Gregory Taylor
Rene Vandenboom
Bareket Falk
Publication date
23-04-2024
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Applied Physiology
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI
https://doi.org/10.1007/s00421-024-05475-6