Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry
Abstract The majority of motor tasks in sports are executed unilaterally, however research on the impact of unilateral conditioning activities (CAs) on both unilateral and bilateral sports tasks remains limited. Therefore, the aim of this study was to evaluate the effects of isometric and plyometric...
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Nature Portfolio
2025-03-01
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| Online Access: | https://doi.org/10.1038/s41598-025-88580-6 |
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| author | Jonatan Helbin Agata Latocha Michał Spieszny Paulina Ewertowska Michał Wilk Michał Krzysztofik |
| author_facet | Jonatan Helbin Agata Latocha Michał Spieszny Paulina Ewertowska Michał Wilk Michał Krzysztofik |
| author_sort | Jonatan Helbin |
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| description | Abstract The majority of motor tasks in sports are executed unilaterally, however research on the impact of unilateral conditioning activities (CAs) on both unilateral and bilateral sports tasks remains limited. Therefore, the aim of this study was to evaluate the effects of isometric and plyometric unilateral CAs on unilateral and bilateral jumping performance. The study involved fifteen resistance-trained males who participated in three experimental sessions: 3 sets of 3 s of maximum isometric single-leg quarter-squats or 3 sets of 5 single-leg tuck jumps as CAs, along with a control condition without CA. Measurements of single-leg jump (SLJ) and countermovement jump (CMJ) were taken 5 min before, and at approximately the 3th, 6th and 9th minute after the CA. The analysis did not show any statistically significant interactions nor a main effect of condition or time (p > 0.05) for CMJ height and relative peak power. However, a main effect of time (p = 0.02) to increase non-dominant SLJ height from baseline to best post-CA time-point was found (+ 0.8 ± 2.5 cm; Cohen’s d = 0.22). Neither isometric nor plyometric CAs significantly affected CMJ and SLJ performance. The observed increase in jump height for the non-dominant leg is likely due to motor learning rather than the effects of the applied CAs. |
| format | Article |
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| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-0f97d5ade62948f88ef53d5a24e801612025-08-20T03:40:46ZengNature PortfolioScientific Reports2045-23222025-03-011511910.1038/s41598-025-88580-6Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetryJonatan Helbin0Agata Latocha1Michał Spieszny2Paulina Ewertowska3Michał Wilk4Michał Krzysztofik5Nutrition and Sports Performance Research Group, The Jerzy Kukuczka Academy of Physical Education in KatowiceNutrition and Sports Performance Research Group, The Jerzy Kukuczka Academy of Physical Education in KatowiceInstitute of Sports Sciences, University of Physical Culture in KrakowDepartment of Physical Culture, Gdansk University of Physical Education and SportInstitute of Sports Sciences, The Jerzy Kukuczka Academy of Physical Education in KatowiceNutrition and Sports Performance Research Group, The Jerzy Kukuczka Academy of Physical Education in KatowiceAbstract The majority of motor tasks in sports are executed unilaterally, however research on the impact of unilateral conditioning activities (CAs) on both unilateral and bilateral sports tasks remains limited. Therefore, the aim of this study was to evaluate the effects of isometric and plyometric unilateral CAs on unilateral and bilateral jumping performance. The study involved fifteen resistance-trained males who participated in three experimental sessions: 3 sets of 3 s of maximum isometric single-leg quarter-squats or 3 sets of 5 single-leg tuck jumps as CAs, along with a control condition without CA. Measurements of single-leg jump (SLJ) and countermovement jump (CMJ) were taken 5 min before, and at approximately the 3th, 6th and 9th minute after the CA. The analysis did not show any statistically significant interactions nor a main effect of condition or time (p > 0.05) for CMJ height and relative peak power. However, a main effect of time (p = 0.02) to increase non-dominant SLJ height from baseline to best post-CA time-point was found (+ 0.8 ± 2.5 cm; Cohen’s d = 0.22). Neither isometric nor plyometric CAs significantly affected CMJ and SLJ performance. The observed increase in jump height for the non-dominant leg is likely due to motor learning rather than the effects of the applied CAs.https://doi.org/10.1038/s41598-025-88580-6Post-activation performance enhancementPower outputIsometricOvercomingPlyometric |
| spellingShingle | Jonatan Helbin Agata Latocha Michał Spieszny Paulina Ewertowska Michał Wilk Michał Krzysztofik Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry Scientific Reports Post-activation performance enhancement Power output Isometric Overcoming Plyometric |
| title | Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry |
| title_full | Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry |
| title_fullStr | Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry |
| title_full_unstemmed | Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry |
| title_short | Acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry |
| title_sort | acute effects of unilateral conditioning activity on unilateral and bilateral jumping performance and bilateral strength asymmetry |
| topic | Post-activation performance enhancement Power output Isometric Overcoming Plyometric |
| url | https://doi.org/10.1038/s41598-025-88580-6 |
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