Acute responses of biomechanical parameters to different sizes of hand paddles in front-crawl stroke

被引:20
作者
Barbosa, Augusto Carvalho [1 ]
Castro, Flavio De Souza [2 ]
Dopsaj, Milivoj [3 ]
Cunha, Sergio Augusto [1 ]
Junior, Orival Andries [1 ]
机构
[1] Univ Estadual Campinas, Sports Sci Dept, BR-13083851 Campinas, SP, Brazil
[2] Univ Fed Rio Grande do Sul, Sch Phys Educ, Porto Alegre, RS, Brazil
[3] Univ Belgrade, Fac Sport & Phys Educ, Belgrade, Serbia
关键词
hand paddles; swimming; propulsive force; velocity; tethered swimming; ARM COORDINATION; SWIMMERS; VELOCITY; TAPER;
D O I
10.1080/02640414.2012.762597
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
This study investigated the acute effects of different sizes of paddles on the force-time curve during tethered swimming and swimming velocity in front-crawl stroke. Fourteen male swimmers (20.0 +/- 3.7 years; 100-m best time: 53.70 +/- 0.87s) performed two 10-s maximal efforts in tethered swimming to obtain peak force, average force, impulse, rate of force development, stroke duration and time to peak force. Swimming velocity, stroke rate and stroke length were obtained from two 25-m maximal swims. Both tests were repeated in five conditions: free swimming, wearing small (280cm (2) ), medium (352cm (2) ), large (462cm (2) ) and extra-large (552cm (2) ) hand paddles. Compared to free swimming, paddles provided significant increases of peak force (medium: 11.5%, large: 16.7%, extra-large: 21.7%), impulse (medium: 15.2%, large: 22.4%, extra-large: 30.9%), average force (medium: 5.1%, large: 7.5%), rate of force development (extra-large: 11.3%), stroke duration (medium: 9.3%, large: 11.8%, extra-large: 18.5%), time to peak force (medium: 11.1%, large: 15.9%, extra-large: 22.1%), swimming velocity (medium: 2.2%, large: 3.2%, extra-large: 3.7%) and stroke length (medium: 9.0%, large: 9.0%, extra-large: 14.8%), while stroke rate decreased (medium: 6.2%, large: 5.5%, extra-large: 9.5%). It is concluded that medium, large and extra-large paddles influence the force-time curve and change swimming velocity, suggesting these sizes may be useful for force development in water.
引用
收藏
页码:1015 / 1023
页数:9
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