Cover Image

Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise

Link to publisher homepage at https://www.frontiersin.org/

Saved in:
Bibliographic Details
Main Authors: Jawad, Hussain, Kenneth, Sundaraj, Indra Devi, Subramaniam, Chee, Kiang Lam
Other Authors: jawab.hussain@engineer.com
Format: Article
Language:English
Published: Frontiers Media S.A. 2020
Subjects:
Triceps brachii
Muscle fatigue
Isotonic contractions
Intensity variation
Speed variation
sEMG
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/65368
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.unimap-65368
record_format dspace
spelling my.unimap-653682020-06-25T08:28:30Z Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise Jawad, Hussain Kenneth, Sundaraj Indra Devi, Subramaniam Chee, Kiang Lam jawab.hussain@engineer.com Triceps brachii Muscle fatigue Isotonic contractions Intensity variation Speed variation sEMG Link to publisher homepage at https://www.frontiersin.org/ The objective of this study was to investigate the effects of changes in exercise intensity and speed on the three heads of the triceps brachii (TB) during triceps push-down exercise until task failure. Twenty-five subjects performed triceps push-down exercise at three different intensities (30, 45, and 60% 1RM) and speeds (slow, medium, and fast) until failure, and surface electromyography (sEMG) signals were recorded from the lateral, long and medial heads of the TB. The endurance time (ET), number of repetitions (NR) and rate of fatigue (ROF) were analyzed. Subsequently, the root-mean-square (RMS), mean power frequency (MPF) and median frequency (MDF) under no-fatigue (NF) and fatigue (Fa) conditions were statistically compared. The findings reveal that ROF increases with increase in the intensity and speed, and the opposite were obtained for the ET. The ROF in the three heads were comparable for all intensities and speeds. The ROF showed a significant difference (P < 0.05) among the three intensities and speeds for all heads. The three heads showed significantly different (P < 0.05) MPF and MDF values for all the performed exercises under both conditions, whereas the RMS values were significantly different only under Fa conditions. The current observations suggest that exercise intensity and speed affect the ROF while changes in intensity do not affect the MPF and MDF under Fa conditions. The behavior of the spectral parameters indicate that the three heads do not work in unison under any of the conditions. Changes in the speed of triceps push-down exercise affects the lateral and long heads, but changes in the exercise intensity affected the attributes of all heads to a greater extent. 2020-06-25T08:28:30Z 2020-06-25T08:28:30Z 2020-02 Article Frontiers in Physiology, vol.11, 2020, pages 1-13 1664-042X (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/65368 https://www.frontiersin.org/articles/10.3389/fphys.2020.00112/full 10.3389/fphys.2020.00112 en Frontiers Media S.A.
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Triceps brachii
Muscle fatigue
Isotonic contractions
Intensity variation
Speed variation
sEMG
spellingShingle Triceps brachii
Muscle fatigue
Isotonic contractions
Intensity variation
Speed variation
sEMG
Jawad, Hussain
Kenneth, Sundaraj
Indra Devi, Subramaniam
Chee, Kiang Lam
Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise
description Link to publisher homepage at https://www.frontiersin.org/
author2 jawab.hussain@engineer.com
author_facet jawab.hussain@engineer.com
Jawad, Hussain
Kenneth, Sundaraj
Indra Devi, Subramaniam
Chee, Kiang Lam
format Article
author Jawad, Hussain
Kenneth, Sundaraj
Indra Devi, Subramaniam
Chee, Kiang Lam
author_sort Jawad, Hussain
title Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise
title_short Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise
title_full Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise
title_fullStr Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise
title_full_unstemmed Muscle Fatigue in the Three Heads of Triceps Brachii During Intensity and Speed Variations of Triceps Push-Down Exercise
title_sort muscle fatigue in the three heads of triceps brachii during intensity and speed variations of triceps push-down exercise
publisher Frontiers Media S.A.
publishDate 2020
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/65368
_version_ 1674067740926672896
score 13.222552

Similar Items