Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/52230
Title: Augmented feedback can change body shape to improve glide efficiency in swimming
Contributor(s): Papic, Christopher  (author)orcid ; Andersen, Jordan (author); Naemi, Roozbeh (author); Hodierne, Ryan (author); Sanders, Ross H (author)
Early Online Version: 2021-04-06
DOI: 10.1080/14763141.2021.1900355
Handle Link: https://hdl.handle.net/1959.11/52230
Abstract: 

Curvatures of the body can disrupt fluid flow and affect hydrodynamic resistance. The purpose of this study was to evaluate the effect of a feedback intervention on glide performance and torso morphology. Eleven male and female national swimmers performed glides before and after augmented feedback. Feedback consisted of self-modelling visual feedback and verbal cuing, to manipulate body curvatures that affect hydrodynamic resistance. Two-dimensional landmark position data (knee, hip and shoulder) were used to enable computation of glide factor and glide coefficient as indicators of glide efficiency; posture (trunk incline and hip angle); and performance (horizontal velocity). Underwater images of the swimmers were manually traced to derive transverse and sagittal diameters, cross-sectional areas, and continuous form outlines (anterior and posterior) of the torso. Maximum rate of change in cross-sectional area and form gradient progressing caudally, were calculated for torso segments: shoulder-chest, chest-waist, waist-hip. Mean velocity, glide factor and glide coefficient values significantly (p< 0.001) improved due to the intervention, with large effect size (d) changes 0.880 (p= 0.015), 2.297 and 1.605, respectively. Significant changes to form gradients were related to reductions in lumbar lordosis and chest convexity. The study provides practical cuing phrases for coaches and swimmers to improve glide efficiency and performance.

Publication Type: Journal Article
Source of Publication: Sports Biomechanics, p. 1-20
Publisher: Routledge
Place of Publication: United Kingdom
ISSN: 1752-6116
1476-3141
Fields of Research (FoR) 2020: 420701 Biomechanics
Socio-Economic Objective (SEO) 2020: 130699 Sport, exercise and recreation not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Science and Technology

Files in This Item:
1 files
File SizeFormat 
Show full item record

SCOPUSTM   
Citations

6
checked on Mar 23, 2024

Page view(s)

800
checked on Jun 11, 2023

Download(s)

2
checked on Jun 11, 2023
Google Media

Google ScholarTM

Check

Altmetric


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.