Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh

Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh

A higher prevalence of injuries occur during the latter stages of match-play may have been attributed to match related fatigue. In the first part of the study, the purpose was to determine the effect of high intensity short duration soccer-specific fatigue simulation (SFP5 ) on physiological...

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Main Author: Mohd Noh, Siti Norfariza
Format: Thesis
Language:English
Published: 2020
Subjects:
Human physiology
Online Access:https://ir.uitm.edu.my/id/eprint/60041/1/60041.pdf
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spelling my-uitm-ir.600412022-05-20T11:58:53Z Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh 2020-10 Mohd Noh, Siti Norfariza Human physiology A higher prevalence of injuries occur during the latter stages of match-play may have been attributed to match related fatigue. In the first part of the study, the purpose was to determine the effect of high intensity short duration soccer-specific fatigue simulation (SFP5 ) on physiological changes in recreationally trained soccer players. Twenty (n = 20; age = 25 ± 4.9 years, height = 169 ± 6.6 cm, body mass = 70 ± 10.3 kg) male recreational soccer players completed a 5 min high intensity soccer specific fatigue simulation (SFP5 ). Prior to simulation (time 0 min), immediately after simulation (time 5 min) and 15 min (time 20 min) post-simulation, participants performed three trials of maximal counter movement jumps and subjective perceived exertions (RPE) were recorded. Heart rate changes were recorded every 1 min throughout the fatigue simulation. The heart rate and RPE were significantly increased at time 5 min (p<.001) and was consistent with physiological responses during high intensity bouts of actual match-play. Counter movement jumps performance significantly reduced at time 5 min (p<.001), indicating the effect of fatigue during simulation. There were no significant changes in heart rate, RPE and maximal counter movement jumps after 15 mins of passive rest. The physiological responses observed during SFP5 are likely due to the inclusion of soccer-specific ball handling utility movements and high accelerations and deceleration, related with a short high intensity bout observed during soccer match-play. In the second part of the study, the effect of short duration high intensity soccer-specific fatigue simulation on jump-landing mechanics were investigated. In a single-group repeated measures design, eighteen (n = 18) male recreationally trained soccer players (age: 24 ± 4 years; body mass: 71 ± 10 kg; height, 169 ± 7 cm) completed a 5 min SFP5 . Prior to simulation (time 0 min), immediately after simulation (time 5 min), and 15 min (time 20 min) post-simulation, participants were tested for three trials of jump landing task assessed using the Landing Error Scoring System (LESS) and single leg hop (SLH) assessment. A significant increase in total LESS score (time 0 min: 3.6 ± 1.1; time 5 min: 4.8 ± 1.2; time 20 min: 4.4 ± 1.8) were observed over time (P < .001). Pairwise comparison shown that LESS score at time 5 min (p = .001) and time 20 min (p = .001) was significantly greater compared to time 0 min. No significant changes were observed in knee extension angle. However, hip extension angle was significantly increase in SLH (p = 0.037). Pairwise comparison revealed that the hip is more extended at time 20 min compared to time 5 min. These findings suggest a greater risk of ACL injury in male players as a consequence of jump-landing impairments during fatigue. A 15 minutes of passive rest may also increase the risk of injury. Our findings support the utilization of a short duration, high intensity soccer-specific fatigue simulation to effectively identify markers of ACL injury risk in soccer players. It is recommended to be include as part of preseason ACL injury risk screening and return to play assessment. 2020-10 Thesis https://ir.uitm.edu.my/id/eprint/60041/ https://ir.uitm.edu.my/id/eprint/60041/1/60041.pdf text en public masters Universiti Teknologi MARA Faculty of Sport Science and Recreation Raja Azidin, Raja Mohammed Firhad (Associate Professor Dr.)
institution Universiti Teknologi MARA
collection UiTM Institutional Repository
language English
advisor Raja Azidin, Raja Mohammed Firhad (Associate Professor Dr.)
topic Human physiology
spellingShingle Human physiology
Mohd Noh, Siti Norfariza
Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh
description A higher prevalence of injuries occur during the latter stages of match-play may have been attributed to match related fatigue. In the first part of the study, the purpose was to determine the effect of high intensity short duration soccer-specific fatigue simulation (SFP5 ) on physiological changes in recreationally trained soccer players. Twenty (n = 20; age = 25 ± 4.9 years, height = 169 ± 6.6 cm, body mass = 70 ± 10.3 kg) male recreational soccer players completed a 5 min high intensity soccer specific fatigue simulation (SFP5 ). Prior to simulation (time 0 min), immediately after simulation (time 5 min) and 15 min (time 20 min) post-simulation, participants performed three trials of maximal counter movement jumps and subjective perceived exertions (RPE) were recorded. Heart rate changes were recorded every 1 min throughout the fatigue simulation. The heart rate and RPE were significantly increased at time 5 min (p<.001) and was consistent with physiological responses during high intensity bouts of actual match-play. Counter movement jumps performance significantly reduced at time 5 min (p<.001), indicating the effect of fatigue during simulation. There were no significant changes in heart rate, RPE and maximal counter movement jumps after 15 mins of passive rest. The physiological responses observed during SFP5 are likely due to the inclusion of soccer-specific ball handling utility movements and high accelerations and deceleration, related with a short high intensity bout observed during soccer match-play. In the second part of the study, the effect of short duration high intensity soccer-specific fatigue simulation on jump-landing mechanics were investigated. In a single-group repeated measures design, eighteen (n = 18) male recreationally trained soccer players (age: 24 ± 4 years; body mass: 71 ± 10 kg; height, 169 ± 7 cm) completed a 5 min SFP5 . Prior to simulation (time 0 min), immediately after simulation (time 5 min), and 15 min (time 20 min) post-simulation, participants were tested for three trials of jump landing task assessed using the Landing Error Scoring System (LESS) and single leg hop (SLH) assessment. A significant increase in total LESS score (time 0 min: 3.6 ± 1.1; time 5 min: 4.8 ± 1.2; time 20 min: 4.4 ± 1.8) were observed over time (P < .001). Pairwise comparison shown that LESS score at time 5 min (p = .001) and time 20 min (p = .001) was significantly greater compared to time 0 min. No significant changes were observed in knee extension angle. However, hip extension angle was significantly increase in SLH (p = 0.037). Pairwise comparison revealed that the hip is more extended at time 20 min compared to time 5 min. These findings suggest a greater risk of ACL injury in male players as a consequence of jump-landing impairments during fatigue. A 15 minutes of passive rest may also increase the risk of injury. Our findings support the utilization of a short duration, high intensity soccer-specific fatigue simulation to effectively identify markers of ACL injury risk in soccer players. It is recommended to be include as part of preseason ACL injury risk screening and return to play assessment.
format Thesis
qualification_level Master's degree
author Mohd Noh, Siti Norfariza
author_facet Mohd Noh, Siti Norfariza
author_sort Mohd Noh, Siti Norfariza
title Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh
title_short Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh
title_full Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh
title_fullStr Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh
title_full_unstemmed Effects of fatigue on biomechanical markers of ACL injury risk during jump-landing and single leg hop task / Siti Norfariza Mohd Noh
title_sort effects of fatigue on biomechanical markers of acl injury risk during jump-landing and single leg hop task / siti norfariza mohd noh
granting_institution Universiti Teknologi MARA
granting_department Faculty of Sport Science and Recreation
publishDate 2020
url https://ir.uitm.edu.my/id/eprint/60041/1/60041.pdf
_version_ 1783735073705558016

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