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Rietveld T, Mason BS, Goosey-Tolfrey VL, van der Woude LHV, de Groot S, Vegter RJK. Inertial measurement units to estimate drag forces and power output during standardised wheelchair tennis coast-down and sprint tests. Sports Biomech 2024; 23:968-986. [PMID: 33896385 DOI: 10.1080/14763141.2021.1902555] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/08/2021] [Indexed: 10/21/2022]
Abstract
The purpose of this study was to describe and explore an inertial measurement unit-based method to analyse drag forces and external power loss in wheelchair tennis, using standardised coast-down and 10 m sprint tests. Drag forces and power output were explored among different wheelchair-athlete combinations and playing conditions (tyre pressure, court-surface). Eight highly trained wheelchair tennis players participated in this study. Three inertial measurement units (IMUs) were placed on the frame and axes of the wheels of their wheelchair. All players completed a set of three standardised coast-down trials and two 10 m sprints with different tyre pressures on hardcourt surface. One athlete completed additional tests on a clay/grass tennis-court. Coast-down based drag forces of 4.8-7.2 N and an external power loss of 9.6-14.4 W at a theoretical speed of 2 m/s were measured on hardcourt surface. A higher tyre pressure led to lower drag forces during coast-down tests on hardcourt surface (Fr (4) = 10.7, p = 0.03). For the single athlete, there was an external power loss of 10.4, 15.6 and 49.4 W, respectively, for the hardcourt, clay and grass. The current prediction of power output was implemented during coast-down testing; unfortunately, the power prediction during 10 m sprints was difficult to accomplish.
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Affiliation(s)
- Thomas Rietveld
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Barry S Mason
- Peter Harrison Centre for Disability Sport, School of Sport Exercise & Health Sciences, Loughborough University, Loughborough, UK
| | - Victoria L Goosey-Tolfrey
- Peter Harrison Centre for Disability Sport, School of Sport Exercise & Health Sciences, Loughborough University, Loughborough, UK
| | - Lucas H V van der Woude
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Peter Harrison Centre for Disability Sport, School of Sport Exercise & Health Sciences, Loughborough University, Loughborough, UK
- Center for Rehabilitation, University of Groningen, University Medical Center, Groningen, The Netherlands
| | - Sonja de Groot
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Amsterdam Rehabilitation Research Center Reade, Amsterdam, The Netherlands
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, VU University, Amsterdam, The Netherlands
| | - Riemer J K Vegter
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Peter Harrison Centre for Disability Sport, School of Sport Exercise & Health Sciences, Loughborough University, Loughborough, UK
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Bascou J, Sauret C, Pillet H, Vaslin P, Thoreux P, Lavaste F. A method for the field assessment of rolling resistance properties of manual wheelchairs. Comput Methods Biomech Biomed Engin 2013; 16:381-91. [DOI: 10.1080/10255842.2011.623673] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Sauret C, Vaslin P, Bascou J, Pillet H, Lavaste F. Rolling resistance index of manual wheelchairs. Comput Methods Biomech Biomed Engin 2011. [DOI: 10.1080/10255842.2011.592365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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