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Effect of hand paddles and parachute on backstroke coordination and stroke parameters

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dc.contributor.authorTelles, Thiago
dc.contributor.authorBarroso, Renato
dc.contributor.authorFigueiredo, Pedro
dc.contributor.authorSalgueiro, Diego Fortes de Souza
dc.contributor.authorVilas-Boas, João Paulo
dc.contributor.authorJunior, Orival Andries
dc.date.accessioned2021-04-29T16:10:36Z
dc.date.available2021-04-29T16:10:36Z
dc.date.issued2016
dc.description.abstractHand paddles and parachutes have been used in order to overload swimmers, and consequently increase the propulsive force generation in swimming. However, their use may affect not only kinematical parameters (average speed, stroke length and stroke rate), but also time gaps between propulsive phases, assessed through the index of coordination (IdC). The objective of this study was to assess the effects of hand paddles and parachute use, isolated or combined, on kinematical parameters and coordination. Eleven swimmers (backstroke 50-m time: 29.16 ± 1.43 s) performed four 15-m trials in a randomised order at maximal intensity: (1) without implements (FREE), (2) with hand paddles (HPD), (3) with parachute (PCH) and (4) with hand paddles plus parachute (HPD+PCH). All trials were video-recorded (60 Hz) in order to assess average speed, stroke rate, stroke length, five stroke phases and index of coordination. When average swimming speed was compared to FREE, it was lower in PCH and HPD+PCH, and higher in HPD. Stroke rate decreased in all overloaded trials compared to FREE. The use of hand paddles and parachute increased and decreased stroke length, respectively. In addition, propulsive phase duration was increased when hand paddles were used, and time gaps shifted towards zero (no time gap), especially when hand paddles were combined with parachute. It is conceivable that the combined use of hand paddles and parachute, once allowing overloading both propulsive and resistive forces, provides a specific stimulus to improve muscle strength and propulsive continuity.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1080/02640414.2016.1201210pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.24/1844
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectArmpt_PT
dc.subjectBiomechanical Phenomenapt_PT
dc.subjectHandpt_PT
dc.subjectHumanspt_PT
dc.subjectMalept_PT
dc.subjectMotor Skillspt_PT
dc.subjectResistance Trainingpt_PT
dc.subjectSports Equipmentpt_PT
dc.subjectSwimmingpt_PT
dc.subjectYoung Adultpt_PT
dc.titleEffect of hand paddles and parachute on backstroke coordination and stroke parameterspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage911pt_PT
oaire.citation.issue9pt_PT
oaire.citation.startPage906pt_PT
oaire.citation.titleJournal of Sports Sciencespt_PT
oaire.citation.volume35pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT

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