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Effects of various jumping exercises on vertical force distribution and emg pattern in school children

Purpose of the present study was to determine the effect of 9 weeks of training based on various jumping exercises on vertical force distribution and EMG pattern in school children. Forty school children (12 male and 28 female) aged between 13 to 17 years participated in this study. Subjects were...

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Main Author: Siti Musyrifah, Ismail
Format: Thesis
Language:English
Published: 2008
Subjects:
D1-2027 History (General)
Online Access:http://eprints.usm.my/52210/1/SHAZLIN%20SHAHARUDIN%20-%2024%20pages.pdf
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spelling my.usm.eprints.52210 http://eprints.usm.my/52210/ Effects of various jumping exercises on vertical force distribution and emg pattern in school children Siti Musyrifah, Ismail D1-2027 History (General) Purpose of the present study was to determine the effect of 9 weeks of training based on various jumping exercises on vertical force distribution and EMG pattern in school children. Forty school children (12 male and 28 female) aged between 13 to 17 years participated in this study. Subjects were divided evenly into 3 experimental groups: Group 1 (training based on jumps), Group 2 (training based on hops), Group 3 (training based on box drills) and a control group - Group 4. Intervention programme had been administered on the experimental groups for 9 weeks. During the 1st three weeks, the subjects were exercising once a week, followed by 3 weeks of exercising twice a week with last 3 weeks exercising thrice a week. No intervention programme was administered to the control group. Subjects were evaluated before, after 3 weeks (mid-test 1), 6 weeks (mid-test 2) and 9 weeks (post-test) in counter movement jump (CMJ), continuous jump with bent legs (CJb) and drop jump (DJ) with registration of jumps' characteristics and EMG. As a result, all intervention groups showed significant improvement in jump height and power within group between tests (p<0.001). By CMJ test, hop training brought highest improvements in jump height (27.9%) (p<0.001) and power (9.70%) (p<O.OOl), whereas box drills training improved force ( 15.5%) from pre-test values. Meanwhile by CJb test, jumps training brought the highest improvement in jump height (23.7%) (p<O.Ol) and power (13.8%), whereas force was improved the most by box training (34.9%) from pre-test. By DJ test, the highest improvement in jump height and power was brought by box drills training (27.9% and 19.6% respectively). Force improved 18.8% under the influence of jumps training. There were no significant differences in the EMG peak amplitude and mean power frequency at muscle gluteus maximus, biceps femoris, rectus femoris, vastus medialis, medial gastrocnemius, and tibialis anterior in all types of jumping exercises. Muscle activation patterns differed in eccentric and concentric phases of the testing jumps. Suggested training programmes, can be used as a conditioning programmes for volleyball and basketball players, track and field athletes specialising in vertical and horizontal jumps, they brought in significant improvement in jump characteristics. 2008 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/52210/1/SHAZLIN%20SHAHARUDIN%20-%2024%20pages.pdf Siti Musyrifah, Ismail (2008) Effects of various jumping exercises on vertical force distribution and emg pattern in school children. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic D1-2027 History (General)
spellingShingle D1-2027 History (General)
Siti Musyrifah, Ismail
Effects of various jumping exercises on vertical force distribution and emg pattern in school children
description Purpose of the present study was to determine the effect of 9 weeks of training based on various jumping exercises on vertical force distribution and EMG pattern in school children. Forty school children (12 male and 28 female) aged between 13 to 17 years participated in this study. Subjects were divided evenly into 3 experimental groups: Group 1 (training based on jumps), Group 2 (training based on hops), Group 3 (training based on box drills) and a control group - Group 4. Intervention programme had been administered on the experimental groups for 9 weeks. During the 1st three weeks, the subjects were exercising once a week, followed by 3 weeks of exercising twice a week with last 3 weeks exercising thrice a week. No intervention programme was administered to the control group. Subjects were evaluated before, after 3 weeks (mid-test 1), 6 weeks (mid-test 2) and 9 weeks (post-test) in counter movement jump (CMJ), continuous jump with bent legs (CJb) and drop jump (DJ) with registration of jumps' characteristics and EMG. As a result, all intervention groups showed significant improvement in jump height and power within group between tests (p<0.001). By CMJ test, hop training brought highest improvements in jump height (27.9%) (p<0.001) and power (9.70%) (p<O.OOl), whereas box drills training improved force ( 15.5%) from pre-test values. Meanwhile by CJb test, jumps training brought the highest improvement in jump height (23.7%) (p<O.Ol) and power (13.8%), whereas force was improved the most by box training (34.9%) from pre-test. By DJ test, the highest improvement in jump height and power was brought by box drills training (27.9% and 19.6% respectively). Force improved 18.8% under the influence of jumps training. There were no significant differences in the EMG peak amplitude and mean power frequency at muscle gluteus maximus, biceps femoris, rectus femoris, vastus medialis, medial gastrocnemius, and tibialis anterior in all types of jumping exercises. Muscle activation patterns differed in eccentric and concentric phases of the testing jumps. Suggested training programmes, can be used as a conditioning programmes for volleyball and basketball players, track and field athletes specialising in vertical and horizontal jumps, they brought in significant improvement in jump characteristics.
format Thesis
author Siti Musyrifah, Ismail
author_facet Siti Musyrifah, Ismail
author_sort Siti Musyrifah, Ismail
title Effects of various jumping exercises on vertical force distribution and emg pattern in school children
title_short Effects of various jumping exercises on vertical force distribution and emg pattern in school children
title_full Effects of various jumping exercises on vertical force distribution and emg pattern in school children
title_fullStr Effects of various jumping exercises on vertical force distribution and emg pattern in school children
title_full_unstemmed Effects of various jumping exercises on vertical force distribution and emg pattern in school children
title_sort effects of various jumping exercises on vertical force distribution and emg pattern in school children
publishDate 2008
url http://eprints.usm.my/52210/1/SHAZLIN%20SHAHARUDIN%20-%2024%20pages.pdf
http://eprints.usm.my/52210/
_version_ 1729703930607173632
score 13.211869

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