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The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions / HELEN PARROTT

Swansea University Author: HELEN PARROTT

DOI (Published version): 10.23889/SUthesis.64539

Abstract

The swimming start is underpinned by horizontal velocity, which is determined by power output on the block and can be enhanced through pre-race interventions. This thesis aimed to determine the accuracy of start times measured using a single panning camera analysis system, to quantify start times to...

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Published: Swansea, Wales, UK 2023
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
Supervisor: Kilduff, Liam P. and Bezodis, Neil E.
URI: https://cronfa.swan.ac.uk/Record/cronfa64539
first_indexed 2023-09-13T14:26:14Z
last_indexed 2024-11-25T14:14:12Z
id cronfa64539
recordtype RisThesis
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spelling 2023-10-20T16:57:54.8872073 v2 64539 2023-09-13 The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions 6ac284ec63aed57fbc254e2bd09ad145 HELEN PARROTT HELEN PARROTT true false 2023-09-13 The swimming start is underpinned by horizontal velocity, which is determined by power output on the block and can be enhanced through pre-race interventions. This thesis aimed to determine the accuracy of start times measured using a single panning camera analysis system, to quantify start times to total race time and investigate pre-race interventions to enhance start and countermovement jump performance. Study one determined the accuracy and reliability of a single panning camera analysis system to measure start time and within the context of a predetermined smallest worthwhile change (≥ 0.187 s). Systematic error and 95% limits of agreement were lower than the smallest worthwhile change for all start times. Study two quantified start time as a percentage of total race time. Start time was found to contribute up to 26.07% of total race time, with males having a lower start contribution than females, and differences between nationalities also identified. Study three assessed how isometric and ballistic postactivation potentiation conditioning activities impact start and countermovement jump performance. Ballistic postactivation potentiation elicited significantly higher countermovement jump height (p = 0.045) and peak power output (p = 0.004) values compared to the control. No significant differences were found for isometric postactivation potentiation compared to the control. Study four investigated the differences between an insulated, foil lined heat garment and trousers with heat elements across the thighs and calves. No significant changes in performance were found (p > 0.050) despite significantly higher muscle temperatures following active heat maintenance. Peak power output was significantly different following passive heat maintenance compared to the control (p = 0.047). This thesis suggests that coaches with sprint athletes should seek opportunities to enhance start performance, which can contribute a large proportion of total race time. Ballistic postactivation potentiation and passive heat maintenance can significantly increase peak power output and potentially start time, although this is on an individual basis. Pre-race interventions should be trialled within training and can be accurately monitored using a single panning camera analysis system to identify significant changes. E-Thesis Swansea, Wales, UK Start performance, pre-race interventions, postactivation potentiation, muscle temperature 22 8 2023 2023-08-22 10.23889/SUthesis.64539 COLLEGE NANME COLLEGE CODE Swansea University Kilduff, Liam P. and Bezodis, Neil E. Doctoral Ph.D Swim Wales 2023-10-20T16:57:54.8872073 2023-09-13T15:22:27.3839582 Faculty of Science and Engineering School of Engineering and Applied Sciences - Sport and Exercise Sciences HELEN PARROTT 1 64539__28533__6147d7e2a7ff4f95b71625c5c56ae18e.pdf 2023_Parrott_H.final.64539.pdf 2023-09-13T15:51:51.7951855 Output 2524425 application/pdf E-Thesis true Copyright: The Author, Helen R. Parrott, 2023. true eng
title The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions
spellingShingle The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions
HELEN PARROTT
title_short The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions
title_full The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions
title_fullStr The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions
title_full_unstemmed The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions
title_sort The Swimming Start: Measurement, Importance and Enhancement through Pre-Race Interventions
author_id_str_mv 6ac284ec63aed57fbc254e2bd09ad145
author_id_fullname_str_mv 6ac284ec63aed57fbc254e2bd09ad145_***_HELEN PARROTT
author HELEN PARROTT
author2 HELEN PARROTT
format E-Thesis
publishDate 2023
institution Swansea University
doi_str_mv 10.23889/SUthesis.64539
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Sport and Exercise Sciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Sport and Exercise Sciences
document_store_str 1
active_str 0
description The swimming start is underpinned by horizontal velocity, which is determined by power output on the block and can be enhanced through pre-race interventions. This thesis aimed to determine the accuracy of start times measured using a single panning camera analysis system, to quantify start times to total race time and investigate pre-race interventions to enhance start and countermovement jump performance. Study one determined the accuracy and reliability of a single panning camera analysis system to measure start time and within the context of a predetermined smallest worthwhile change (≥ 0.187 s). Systematic error and 95% limits of agreement were lower than the smallest worthwhile change for all start times. Study two quantified start time as a percentage of total race time. Start time was found to contribute up to 26.07% of total race time, with males having a lower start contribution than females, and differences between nationalities also identified. Study three assessed how isometric and ballistic postactivation potentiation conditioning activities impact start and countermovement jump performance. Ballistic postactivation potentiation elicited significantly higher countermovement jump height (p = 0.045) and peak power output (p = 0.004) values compared to the control. No significant differences were found for isometric postactivation potentiation compared to the control. Study four investigated the differences between an insulated, foil lined heat garment and trousers with heat elements across the thighs and calves. No significant changes in performance were found (p > 0.050) despite significantly higher muscle temperatures following active heat maintenance. Peak power output was significantly different following passive heat maintenance compared to the control (p = 0.047). This thesis suggests that coaches with sprint athletes should seek opportunities to enhance start performance, which can contribute a large proportion of total race time. Ballistic postactivation potentiation and passive heat maintenance can significantly increase peak power output and potentially start time, although this is on an individual basis. Pre-race interventions should be trialled within training and can be accurately monitored using a single panning camera analysis system to identify significant changes.
published_date 2023-08-22T08:19:09Z
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score 11.132912