Staff View: The effects of knee flexion on muscle activation and performance during chin-up exercise

The effects of knee flexion on muscle activation and performance during chin-up exercise

Background and Study Aim Chin-up is an exercise that is done to improve the strength, muscular endurance and size of the upper back and arm muscles. There are many ways to perform chin-up exercises including by performing it with different forms of knee flexion. This study aims to examine the effect...

Full description

Saved in:

Bibliographic Details
Main Authors:	Abdul Mu'iz Nor Azmi, Mohd Syamil Shafiee, Nor Fazila Abd Malek, Kevin Tan, Rajkumar Krishnan Vasanthi, Zulezwan Ab Malik, Ali Md Nadzalan
Format:	Article
Language:	English English
Published:	IP Iermakov S.S. 2022
Subjects:	GV557-1198.995 Sports GV711 Coaching
Online Access:	https://eprints.ums.edu.my/id/eprint/35230/1/Abstract.pdf https://eprints.ums.edu.my/id/eprint/35230/2/Full%20text.pdf https://eprints.ums.edu.my/id/eprint/35230/ https://sportpedagogy.org.ua/index.php/ppcs/article/view/1907/930 https://doi.org/10.15561/26649837.2022.0303
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.ums.eprints.35230
record_format	eprints
spelling	my.ums.eprints.352302023-03-23T02:10:48Z https://eprints.ums.edu.my/id/eprint/35230/ The effects of knee flexion on muscle activation and performance during chin-up exercise Abdul Mu'iz Nor Azmi Mohd Syamil Shafiee Nor Fazila Abd Malek Kevin Tan Rajkumar Krishnan Vasanthi Zulezwan Ab Malik Ali Md Nadzalan GV557-1198.995 Sports GV711 Coaching Background and Study Aim Chin-up is an exercise that is done to improve the strength, muscular endurance and size of the upper back and arm muscles. There are many ways to perform chin-up exercises including by performing it with different forms of knee flexion. This study aims to examine the effects of knee flexion on muscle activation and performance during chin-up exercise. Material and Methods a total of twenty-one healthy trained male (age 20-25 years old) were recruited and were instructed to perform chin-up exercises in three knee conditions: i) knee fully flexed, ii) partial knee flexed, and iii) straight knee. Chin-up performance was measured by the number of repetitions performed in three sets. Muscle activation was measured using EMG and taken from latissimus dorsi (LD), posterior deltoid (PD), and biceps brachii (BB) during both concentric and eccentric phase. One-way repeated measure Analysis of Variances (ANOVA) were conducted to compare the muscle activation and number of repetitions performed across the three variation of chin-up exercise. Results Findings showed that during the concentric phase, BB recorded higher muscle activation during straight knee compared to knee fully flexed and partial knee flexed, p < .05. In addition, chin-up performance during straight knee and partial knee flexed were better than knee fully flexed, p < .05. Conclusions The results of this study demonstrated the importance to consider techniques manipulation during exercises due to its effects on acute responses as shown by number of repetitions and muscle activation in this study that might also affect the long-term outcomes. IP Iermakov S.S. 2022 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/35230/1/Abstract.pdf text en https://eprints.ums.edu.my/id/eprint/35230/2/Full%20text.pdf Abdul Mu'iz Nor Azmi and Mohd Syamil Shafiee and Nor Fazila Abd Malek and Kevin Tan and Rajkumar Krishnan Vasanthi and Zulezwan Ab Malik and Ali Md Nadzalan (2022) The effects of knee flexion on muscle activation and performance during chin-up exercise. Pedagogy of Physical Culture and Sports, 26 (3). pp. 158-164. ISSN 2664-9837 https://sportpedagogy.org.ua/index.php/ppcs/article/view/1907/930 https://doi.org/10.15561/26649837.2022.0303
institution	Universiti Malaysia Sabah
building	UMS Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sabah
content_source	UMS Institutional Repository
url_provider	http://eprints.ums.edu.my/
language	English English
topic	GV557-1198.995 Sports GV711 Coaching
spellingShingle	GV557-1198.995 Sports GV711 Coaching Abdul Mu'iz Nor Azmi Mohd Syamil Shafiee Nor Fazila Abd Malek Kevin Tan Rajkumar Krishnan Vasanthi Zulezwan Ab Malik Ali Md Nadzalan The effects of knee flexion on muscle activation and performance during chin-up exercise
description	Background and Study Aim Chin-up is an exercise that is done to improve the strength, muscular endurance and size of the upper back and arm muscles. There are many ways to perform chin-up exercises including by performing it with different forms of knee flexion. This study aims to examine the effects of knee flexion on muscle activation and performance during chin-up exercise. Material and Methods a total of twenty-one healthy trained male (age 20-25 years old) were recruited and were instructed to perform chin-up exercises in three knee conditions: i) knee fully flexed, ii) partial knee flexed, and iii) straight knee. Chin-up performance was measured by the number of repetitions performed in three sets. Muscle activation was measured using EMG and taken from latissimus dorsi (LD), posterior deltoid (PD), and biceps brachii (BB) during both concentric and eccentric phase. One-way repeated measure Analysis of Variances (ANOVA) were conducted to compare the muscle activation and number of repetitions performed across the three variation of chin-up exercise. Results Findings showed that during the concentric phase, BB recorded higher muscle activation during straight knee compared to knee fully flexed and partial knee flexed, p < .05. In addition, chin-up performance during straight knee and partial knee flexed were better than knee fully flexed, p < .05. Conclusions The results of this study demonstrated the importance to consider techniques manipulation during exercises due to its effects on acute responses as shown by number of repetitions and muscle activation in this study that might also affect the long-term outcomes.
format	Article
author	Abdul Mu'iz Nor Azmi Mohd Syamil Shafiee Nor Fazila Abd Malek Kevin Tan Rajkumar Krishnan Vasanthi Zulezwan Ab Malik Ali Md Nadzalan
author_facet	Abdul Mu'iz Nor Azmi Mohd Syamil Shafiee Nor Fazila Abd Malek Kevin Tan Rajkumar Krishnan Vasanthi Zulezwan Ab Malik Ali Md Nadzalan
author_sort	Abdul Mu'iz Nor Azmi
title	The effects of knee flexion on muscle activation and performance during chin-up exercise
title_short	The effects of knee flexion on muscle activation and performance during chin-up exercise
title_full	The effects of knee flexion on muscle activation and performance during chin-up exercise
title_fullStr	The effects of knee flexion on muscle activation and performance during chin-up exercise
title_full_unstemmed	The effects of knee flexion on muscle activation and performance during chin-up exercise
title_sort	effects of knee flexion on muscle activation and performance during chin-up exercise
publisher	IP Iermakov S.S.
publishDate	2022
url	https://eprints.ums.edu.my/id/eprint/35230/1/Abstract.pdf https://eprints.ums.edu.my/id/eprint/35230/2/Full%20text.pdf https://eprints.ums.edu.my/id/eprint/35230/ https://sportpedagogy.org.ua/index.php/ppcs/article/view/1907/930 https://doi.org/10.15561/26649837.2022.0303
_version_	1761617769678241792
score	13.211869

The effects of knee flexion on muscle activation and performance during chin-up exercise

Similar Items