Gymnastik- och idrottshögskolan, GIH

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Isometric, dynamic, and manual muscle strength measures and their association with cycling performance in elite para-cyclists.
Swedish School of Sport and Health Sciences, GIH, Department of Physiology, Nutrition and Biomechanics.ORCID iD: 0000-0001-8297-3268
Swedish School of Sport and Health Sciences, GIH, Department of Physiology, Nutrition and Biomechanics.ORCID iD: 0000-0002-1210-6449
Swedish School of Sport and Health Sciences, GIH, Department of Physiology, Nutrition and Biomechanics.ORCID iD: 0000-0003-0146-9292
Swedish School of Sport and Health Sciences, GIH, Department of Physiology, Nutrition and Biomechanics.ORCID iD: 0000-0002-4901-0010
2023 (English)In: American Journal of Physical Medicine & Rehabilitation, ISSN 0894-9115, E-ISSN 1537-7385, Vol. 102, no 5, p. 461-467Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: Para-cycling classification aims to generate fair competition by discriminating between levels of activity limitation. This study investigated the relationship between lower limb Manual Muscle Tests (MMT) with ratio-scaled measures of isometric and dynamic strength, and of the ratio-scaled measures with cycling performance.

DESIGN: Fifty-six para-cyclists (44 males, 12 females) with leg impairments performed isometric and dynamic strength tests: leg push and pull, and an all-out 20 s sprint. MMT results were obtained from the classification database (n = 21) and race speeds from time trials (n = 54).

RESULTS: Regression analyses showed significant associations of MMT with isometric push (R2 = .49), dynamic push (R2 = .35), and dynamic pull (R2 = .28). Isometric strength was significantly correlated with dynamic push (ρ = .63) and pull (ρ = .54). The isometric and dynamic tests were significantly associated with sprint power and race speed (R2 = .16-.50).

CONCLUSION: The modified MMT and ratio-scaled measures were significantly associated. The significant relation of isometric and dynamic strength with sprint power and race speed maps the impact of lower limb impairments on para-cycling performance. MMT and the isometric and dynamic measures show potential for use in para-cycling classification.

Place, publisher, year, edition, pages
Wolters Kluwer, 2023. Vol. 102, no 5, p. 461-467
National Category
Sport and Fitness Sciences
Research subject
Medicine/Technology
Identifiers
URN: urn:nbn:se:gih:diva-7024DOI: 10.1097/PHM.0000000000002014ISI: 000985327400017PubMedID: 35349541OAI: oai:DiVA.org:gih-7024DiVA, id: diva2:1653597
Available from: 2022-04-22 Created: 2022-04-22 Last updated: 2023-06-27Bibliographically approved
In thesis
1. Towards evidence-based classification in para-cycling
Open this publication in new window or tab >>Towards evidence-based classification in para-cycling
2022 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The aim of classification in Paralympic sport is to minimize the impact of impairment on the outcome of competition. The aim of this thesis was to investigate the impact of different types of impairments on para-cycling performance to develop an evidence-based classification system in the para-cycling C (bicycling) and T (tricycling) divisions.

This thesis is based on four articles. The first article examined differences in race performance between para-cycling classes by comparing track race results. The second article evaluated leg strength measures in para-cyclists with musculoskeletal impairments. The third article investigated leg coordination and leg strength and the association with para-cycling performance in para-cyclists with hypertonia, ataxia, or athetosis. The fourth article aimed to gather consensus on para-cycling classification issues and to identify research priorities within para-cycling, by consulting a panel with expertise within para-cycling and para-sport.

This thesis has identified performance characteristics in para-cyclists with musculoskeletal and coordination impairments, and suggested tests with potential to be used in para-cycling classification to assess muscle strength and coordination. The results indicate that the classes for athletes with the least impairments, as well as the classes for athletes with impaired coordination, need to be further investigated.

Place, publisher, year, edition, pages
Stockholm: Gymnastik- och idrottshögskolan, GIH, 2022. p. 102
Series
Avhandlingsserie för Gymnastik- och idrottshögskolan ; 24
Keywords
cycling, para sport, Paralympics, performance, impairment
National Category
Sport and Fitness Sciences
Research subject
Medicine/Technology
Identifiers
urn:nbn:se:gih:diva-7047 (URN)978-91-986490-5-5 (ISBN)
Public defence
2022-06-10, Aulan, Lidingövägen 1, Stockholm, 09:00 (English)
Opponent
Supervisors
Available from: 2022-05-10 Created: 2022-05-10 Last updated: 2022-05-18Bibliographically approved

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Liljedahl, JohannaArndt, AntonNooijen, Carla F JBjerkefors, Anna

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