Kinematic differences in shoulder roll and hip roll at different front crawl speeds

Jordan Andersen , Peter Sinclair, Carla McCabe, Ross Sanders

Research output: Contribution to journalArticle

Abstract

The purpose of this study was to use three-dimensional methods to determine whether there are distinct kinematic differences between sprint and distance front crawl swimmers when swimming at a sprint pace. Seven sprint and eight distance specialists performed four 25-m sprints through a 6.75-m(3) calibrated space recorded by six gen-locked cameras. The variables of interest were: average swim velocity, stroke length, stroke frequency, upper limb and foot displacement, elbow angle, shoulder and hip roll angles, duration of stroke phases, and the time corresponding to particular events within the stroke cycle relative to hand entry. Differences between sprint and distance swimmers were assessed with an independent t-test for each variable, in addition to effect size calculations. Differences between sprint and distance front crawl swimmers were generally small and not significant when swimming at a sprint pace. Differences were limited to temporal aspects of the stroke cycle. These findings suggest that coaches should not train sprint and distance specialists differently in terms of technique development.
LanguageEnglish
Pages115-123
JournalJournal of Strength and Conditioning Research
Early online date18 Sep 2019
DOIs
Publication statusE-pub ahead of print - 18 Sep 2019

Fingerprint

Biomechanical Phenomena
Hip
Stroke
Elbow
Upper Extremity
Foot
Hand

Keywords

  • torso twist
  • biomechanics
  • sprint
  • middle-distance
  • performance

Cite this

@article{1a1a8030cc6540378d2552f6b8c37c83,
title = "Kinematic differences in shoulder roll and hip roll at different front crawl speeds",
abstract = "The purpose of this study was to use three-dimensional methods to determine whether there are distinct kinematic differences between sprint and distance front crawl swimmers when swimming at a sprint pace. Seven sprint and eight distance specialists performed four 25-m sprints through a 6.75-m(3) calibrated space recorded by six gen-locked cameras. The variables of interest were: average swim velocity, stroke length, stroke frequency, upper limb and foot displacement, elbow angle, shoulder and hip roll angles, duration of stroke phases, and the time corresponding to particular events within the stroke cycle relative to hand entry. Differences between sprint and distance swimmers were assessed with an independent t-test for each variable, in addition to effect size calculations. Differences between sprint and distance front crawl swimmers were generally small and not significant when swimming at a sprint pace. Differences were limited to temporal aspects of the stroke cycle. These findings suggest that coaches should not train sprint and distance specialists differently in terms of technique development.",
keywords = "torso twist, biomechanics, sprint, middle-distance, performance",
author = "Jordan Andersen and Peter Sinclair and Carla McCabe and Ross Sanders",
year = "2019",
month = "9",
day = "18",
doi = "10.1519/JSC.0000000000003281",
language = "English",
pages = "115--123",
journal = "Journal of Strength and Conditioning Research",
issn = "1064-8011",

}

Kinematic differences in shoulder roll and hip roll at different front crawl speeds. / Andersen , Jordan ; Sinclair, Peter ; McCabe, Carla; Sanders, Ross.

In: Journal of Strength and Conditioning Research, 18.09.2019, p. 115-123.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Kinematic differences in shoulder roll and hip roll at different front crawl speeds

AU - Andersen , Jordan

AU - Sinclair, Peter

AU - McCabe, Carla

AU - Sanders, Ross

PY - 2019/9/18

Y1 - 2019/9/18

N2 - The purpose of this study was to use three-dimensional methods to determine whether there are distinct kinematic differences between sprint and distance front crawl swimmers when swimming at a sprint pace. Seven sprint and eight distance specialists performed four 25-m sprints through a 6.75-m(3) calibrated space recorded by six gen-locked cameras. The variables of interest were: average swim velocity, stroke length, stroke frequency, upper limb and foot displacement, elbow angle, shoulder and hip roll angles, duration of stroke phases, and the time corresponding to particular events within the stroke cycle relative to hand entry. Differences between sprint and distance swimmers were assessed with an independent t-test for each variable, in addition to effect size calculations. Differences between sprint and distance front crawl swimmers were generally small and not significant when swimming at a sprint pace. Differences were limited to temporal aspects of the stroke cycle. These findings suggest that coaches should not train sprint and distance specialists differently in terms of technique development.

AB - The purpose of this study was to use three-dimensional methods to determine whether there are distinct kinematic differences between sprint and distance front crawl swimmers when swimming at a sprint pace. Seven sprint and eight distance specialists performed four 25-m sprints through a 6.75-m(3) calibrated space recorded by six gen-locked cameras. The variables of interest were: average swim velocity, stroke length, stroke frequency, upper limb and foot displacement, elbow angle, shoulder and hip roll angles, duration of stroke phases, and the time corresponding to particular events within the stroke cycle relative to hand entry. Differences between sprint and distance swimmers were assessed with an independent t-test for each variable, in addition to effect size calculations. Differences between sprint and distance front crawl swimmers were generally small and not significant when swimming at a sprint pace. Differences were limited to temporal aspects of the stroke cycle. These findings suggest that coaches should not train sprint and distance specialists differently in terms of technique development.

KW - torso twist

KW - biomechanics

KW - sprint

KW - middle-distance

KW - performance

U2 - 10.1519/JSC.0000000000003281

DO - 10.1519/JSC.0000000000003281

M3 - Article

SP - 115

EP - 123

JO - Journal of Strength and Conditioning Research

T2 - Journal of Strength and Conditioning Research

JF - Journal of Strength and Conditioning Research

SN - 1064-8011

ER -