Comparison of Supervised versus Self-Administered Stretching on Bench Press Maximal Strength and Force Development

Purpose: While there is reported superior effectiveness with supervised training, it usually requires specialized exercise facilities and instructors. It is reported in the literature that high-volume stretching improves pectoralis muscles strength under supervised conditions while practical relevan...

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Main Authors: Tim Wohlann (Author), Konstantin Warneke (Author), David G. Behm (Author), Stephan Schiemann (Author)
Format: Book
Published: MDPI AG, 2024-04-01T00:00:00Z.
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Summary:Purpose: While there is reported superior effectiveness with supervised training, it usually requires specialized exercise facilities and instructors. It is reported in the literature that high-volume stretching improves pectoralis muscles strength under supervised conditions while practical relevance is discussed. Therefore, the study objective was to compare the effects of volume equated, supervised- and self-administered home-based stretching on strength performance. Methods: Sixty-three recreational participants were equally assigned to either a supervised static stretching, home-based stretching, or control group. The effects of 15 min pectoralis stretching, 4 days per week for 8 weeks, were assessed on dynamic and isometric bench press strength and force development. Results: While there was a large magnitude maximal strength increase (<i>p</i> < 0.001-0.023, ƞ<sup>2</sup> = 0.118-0.351), force development remained unaffected. Dynamic maximal strength in both groups demonstrated large magnitude increases compared to the control group (<i>p</i> < 0.001-0.001, d = 1.227-0.905). No differences between the intervention group for maximal strength (<i>p</i> = 0.518-0.821, d = 0.101-0.322) could be detected. Conclusions: The results could potentially be attributed to stretch-induced tension (mechanical overload) with subsequent anabolic adaptations, and alternative explanatory approaches are discussed. Nevertheless, home-based stretching seems a practical alternative to supervised training with potential meaningful applications in different settings.
Item Description:10.3390/sports12040109
2075-4663