[Article] - Influence of using individualised ergonomic handles on upper limb kinematics and neuromuscular activity, perceived comfort and performance during scull rowing

Sous titre
In 2019, the Nano-Bio-Materials for Life team was approached by the French Rowing Federation in Nancy to assist a world champion athlete suffering from motor disorders related to carpal tunnel syndrome. The team developed two grip solutions: one eliminating constraints on the affected part of the musculoskeletal chain, and the other alleviating them. Both solutions were patented in 2022 and 2025. This work subsequently led to the writing of this article.
This article explores the biomechanical consequences of using customized ergonomic equipment for each high-level single sculler on the water. It validates an ergonomic handle designed and manufactured in Nancy in the context of high-performance sports.

Abstract

Articular constraints, exposure to discomfort, and the use of handles unsuitable for task-specific grip during repetitive movements can increase the risk of upper limb injuries in rowing. Therefore, the aim of this study was to introduce and evaluate the impact of two individualized ergonomic handles on comfort, upper limb biomechanics, and performance in double scull (skiff) rowing, compared to standard handles.

Both individualized handle designs were based on an irregular hexagon adapted to hand length, with one further customized according to the rower’s comfort feedback. Perceived comfort, upper limb kinematics, neuromuscular activity, boat speed, and power output were monitored in 13 high-level rowers. Handles adjusted based on the rower’s perceived comfort significantly increased comfort (9.63 ± 0.3) while maintaining a similar performance level (4.22 m·s⁻¹ ± 0.18). The improvement in comfort (p < 0.001) and increased wrist extension (p = 0.014) were associated with a better sensation of blade orientation. However, further investigation is required regarding handle orientation adjustment. Except for the posterior deltoid, upper limb neuromuscular parameters, power output, and speed were not influenced by the ergonomic handles. New diameters for irregular hexagonal handles were identified for optimal comfort in double scull rowing. We recommend the individualization of irregular hexagonal-shaped handles for double scull rowers seeking to improve their comfort.

Autors

Geoffrey Ertel (1) , Lorenzo Pitto (1) , Frédéric Simon (1, 2) , Guillaume Mornieux (1, 2) , Jean-Philippe Jehl (3, 1) , Gérome Gauchard (1, 2)

References

Sports Biomechanics, 2025, pp.1-19.

DOI

https://dx.doi.org/10.1080/14763141.2025.2533962
 

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