The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad

Post-activation potentiation (PAP) warm-up such as back squat, can improve speed-power performance. However, the prescribe intensity is not clearly determined. The aim of this study was to investigate whether performing light-load back squat (LS) versus heavy-load back squat (HS) as PAP warm-up expo...

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Main Author:	Muhammad, Muhammad Aiman
Format:	Thesis
Language:	English
Published:	2021
Subjects:	General works Athletes Human physiology
Online Access:	https://ir.uitm.edu.my/id/eprint/41428/1/41428.pdf
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id	my-uitm-ir.41428
record_format	uketd_dc
spelling	my-uitm-ir.414282021-02-11T03:45:05Z The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad 2021-02-02 Muhammad, Muhammad Aiman General works. Athletes Musculoskeletal system. Movements Human physiology Post-activation potentiation (PAP) warm-up such as back squat, can improve speed-power performance. However, the prescribe intensity is not clearly determined. The aim of this study was to investigate whether performing light-load back squat (LS) versus heavy-load back squat (HS) as PAP warm-up exposure prior sprinting activity able to improve speed-power performance among amateur male rugby players. Twenty three amateur male rugby players (age: 20.7 ± 1.4 years; BMI 22.5 ± 1.7 kg.m-2) from various rugby teams around Alor Setar, Kedah were recruited in this study. This study was a repeated-measures study design consisted of control and two PAP warm-up exposures. Participants exposed to three trials; control trial with no PAP warm-up (C), light-load back squat (LS = 60% of 1RM), and heavy-load back squat (HS = 85% of 1RM). During each trial, participants performed warm-up on stationary bike at 60 rpm for 6 minutes and followed by prescribed warm-up exposure before proceeding to 40-meter sprint test with 4 minutes rest in between activities. Participants performed all warm-up exposures with two sets of four repetitions in three non-consecutive days of trials within two weeks. The 40-meter sprint test was used to measure speed-power performance during the trials. The data was analysed by using one-way ANOVA with repeated-measures. As a result, sprinting time had improved significantly (p<0.001) after LS (-11.91%), and HS (-18.03%) PAP warm-up when compared to control. When compared between two PAP warm-ups, HS was significantly superior to LS (p<0.001) with 6.95% v improvement in sprinting time. In conclusion, the present study found that performing back squat PAP warm-up with sub-maximal load; two sets of four repetitions prior sprinting activity able to improve speed-power performance with heavy-load back squat having a superior effect among amateur male rugby players. 2021-02 Thesis https://ir.uitm.edu.my/id/eprint/41428/ https://ir.uitm.edu.my/id/eprint/41428/1/41428.pdf text en public degree Universiti Teknologi Mara Perlis Faculty of Sports Science and Recreation
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	General works Athletes General works Athletes Human physiology
spellingShingle	General works Athletes General works Athletes Human physiology Muhammad, Muhammad Aiman The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad
description	Post-activation potentiation (PAP) warm-up such as back squat, can improve speed-power performance. However, the prescribe intensity is not clearly determined. The aim of this study was to investigate whether performing light-load back squat (LS) versus heavy-load back squat (HS) as PAP warm-up exposure prior sprinting activity able to improve speed-power performance among amateur male rugby players. Twenty three amateur male rugby players (age: 20.7 ± 1.4 years; BMI 22.5 ± 1.7 kg.m-2) from various rugby teams around Alor Setar, Kedah were recruited in this study. This study was a repeated-measures study design consisted of control and two PAP warm-up exposures. Participants exposed to three trials; control trial with no PAP warm-up (C), light-load back squat (LS = 60% of 1RM), and heavy-load back squat (HS = 85% of 1RM). During each trial, participants performed warm-up on stationary bike at 60 rpm for 6 minutes and followed by prescribed warm-up exposure before proceeding to 40-meter sprint test with 4 minutes rest in between activities. Participants performed all warm-up exposures with two sets of four repetitions in three non-consecutive days of trials within two weeks. The 40-meter sprint test was used to measure speed-power performance during the trials. The data was analysed by using one-way ANOVA with repeated-measures. As a result, sprinting time had improved significantly (p<0.001) after LS (-11.91%), and HS (-18.03%) PAP warm-up when compared to control. When compared between two PAP warm-ups, HS was significantly superior to LS (p<0.001) with 6.95% v improvement in sprinting time. In conclusion, the present study found that performing back squat PAP warm-up with sub-maximal load; two sets of four repetitions prior sprinting activity able to improve speed-power performance with heavy-load back squat having a superior effect among amateur male rugby players.
format	Thesis
qualification_level	Bachelor degree
author	Muhammad, Muhammad Aiman
author_facet	Muhammad, Muhammad Aiman
author_sort	Muhammad, Muhammad Aiman
title	The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad
title_short	The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad
title_full	The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad
title_fullStr	The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad
title_full_unstemmed	The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad
title_sort	acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / muhammad aiman muhammad
granting_institution	Universiti Teknologi Mara Perlis
granting_department	Faculty of Sports Science and Recreation
publishDate	2021
url	https://ir.uitm.edu.my/id/eprint/41428/1/41428.pdf
_version_	1783734639183003648

The acute effects of light versus heavy - load back squats on speed-power performance among amateur male rugby players / Muhammad Aiman Muhammad

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