Does respiratory muscle training have an effect on 100m swimming performance?

Moisley, Alexander (2016) Does respiratory muscle training have an effect on 100m swimming performance? Undergraduate thesis, University of Chichester.

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Aim: The purpose of this study was to investigate the effects a 4 week inspiratory muscle training (IMT) programme has on 100m front crawl performance. Whilst there is a substantial body of research into the effects of IMT across a range of sports, there are only a limited number of studies focusing on interventions shorter than 6 weeks. Method: Pre and post-intervention measures of 100m front crawl time trial performance (TT), heart rate (HR), rate of perceived exertion (RPE), breath count (BC), stroke count (SC), peak inspiratory flow (PIF), forced inspiratory voluntary capacity (FIVC) and forced expiratory volume in 1 second (FEV1) were taken from 10 participants. HR was measured before and after the 100m sprint using a water resistant Polar heart rate monitor (Warwick, UK), with the difference pre and post-time trial being calculated. Participants were split into 2 independent groups (N=5), a training group (TRAIN) and a control group (CONT) balanced on TT performance. Participants in the TRAIN group performed 6 weeks IMT using a POWERbreathe Plus Medium Resistance respiratory trainer (POWERbreathe International Ltd., Warwickshire, UK) in addition to their normal training. Participants in the CONT group continued their normal training with no additional training for 4 weeks. Statistical analysis of the data was carried out using Mann-Whitney U tests (p = 0.05). Results: TT times were significantly different between the two groups (p = 0.008) with participants in the TRAIN group recording a 1.98% decrease in mean TT pre to post-intervention. No significant differences were found between CONT and TRAIN groups for HR (p = 0.222), RPE (p = 0.548), PIF (p = 0.222), FIVC (p = 0.548), FEV1 (p = 0.095), breath count (p = 0.548) or stroke count (p = 0.222). Conclusion: Four weeks of IMT had significant benefits to 100m swimming performance, decreasing average TT by 1.98%. However no significant effects were observed among the key performance variables measured. Future research should use a larger group of participants across a larger period of time in order to achieve a stronger theoretical basis.

Item Type: Thesis (Undergraduate)
Additional Information: BSc (Hons.) Sport & Exercise Science (Physical Activity for Health)
Subjects: Q Science > Q Science (General)
Divisions: Departments > Sport and Exercise Sciences
Undergraduate Dissertations
Depositing User: Ann Jones
Date Deposited: 20 Sep 2016 08:41
Last Modified: 20 Sep 2016 08:41

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