Abstract:
:The purpose was to develop and validate portable force-measurement devices for recording push and pull forces applied by each foot to the foot bar of a kayak and the horizontal force at the seat. A foot plate on a single-point force transducer mounted on the kayak foot bar underneath each foot allowed the push and pull forces to be recorded. Two metal frames interconnected with 4 linear ball bearings, and a force transducer allowed recording of horizontal seat force. The foot-bar-force device was calibrated by loading each foot plate with weights in the push-pull direction perpendicular to the foot plate surface, while the seat-force device was calibrated to horizontal forces with and without weights on the seat. A strong linearity (r2 = .99-1.0) was found between transducer output signal and load force in the push and pull directions for both foot-bar transducers perpendicular to the foot plate and the seat-force-measuring device. Reliability of both devices was tested by means of a test-retest design. The coefficient of variation (CV) for foot-bar push and pull forces ranged from 0.1% to 1.1%, and the CV for the seat forces varied from 0.6% to 2.2%. The current study opens up a field for new investigations of the forces generated in the kayak and ways to optimize kayak-paddling performance.
journal_name
Int J Sports Physiol Performauthors
Nilsson JE,Rosdahl HGdoi
10.1123/ijspp.2012-0333subject
Has Abstractpub_date
2014-03-01 00:00:00pages
365-70issue
2eissn
1555-0265issn
1555-0273pii
2012-0333journal_volume
9pub_type
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journal_title:International journal of sports physiology and performance
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更新日期:2014-09-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2017-07-01 00:00:00
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doi:10.1123/ijspp.1.2.172
更新日期:2006-06-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
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更新日期:2015-10-01 00:00:00
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journal_title:International journal of sports physiology and performance
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更新日期:2016-07-01 00:00:00
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更新日期:2017-08-01 00:00:00
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更新日期:2020-09-21 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.2014-0355
更新日期:2015-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1123/ijspp.7.3.295
更新日期:2012-09-01 00:00:00
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更新日期:2017-09-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2017-03-01 00:00:00
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doi:10.1123/ijspp.5.4.448
更新日期:2010-12-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
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更新日期:2019-09-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2017-07-01 00:00:00
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doi:10.1123/ijspp.2015-0189
更新日期:2016-04-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2015-05-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.2015-0490
更新日期:2016-10-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2019-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:2020-08-10 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2016-10-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
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更新日期:2010-09-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.2014-0360
更新日期:2015-10-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.8.6.692
更新日期:2013-11-01 00:00:00
abstract::Purpose: To establish levels of association between physical fitness and match activity profiles of players in the Australian Football League (AFL) participation pathway. Methods: Players (N = 287, range 10.9-19.1 y) were assessed on 20-m sprint, AFL agility, vertical jump and running vertical jump, 20-m multistage fi...
journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.2018-0488
更新日期:2019-07-01 00:00:00