The effect of 26 versus 29-inch wheel diameter in the transmission of vibrations in cross-country mountain biking.

IF 2 3区医学 Q3 ENGINEERING, BIOMEDICAL Sports Biomechanics Pub Date : 2024-10-01 Epub Date: 2021-08-25 DOI:10.1080/14763141.2021.1968480

Enrique Moreno Mañas, Salvador Llana-Belloch, Vicent Úbeda-Pastor, Xavier Garcia-Massó

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Abstract

Vibrations experienced by cyclists can affect their performance and health. We analysed the vibrations transmitted by mountain bike (26 or 29-inch wheels), in a 2,110 m circuit with a sample of 55 cyclists. The results indicate that the 29"-wheel increases speed (p < 0.001) and thus performance but it also increases exposure to vibrations as the root mean square (RMS) indicate (p = 0.001). The wheel diameter significantly affected the accelerometer-related dependent variables (p < 0.01), specifically seen in the RMS variable (p < 0.01). Regarding vibration transmission variables, it was found that the LW/FH, RW/FH, LA/RH, and RA/RH ratios were higher in the 29" bicycle than in 26" one. Average heart rate (p = 0.01) and maximum heart rate (p < 0.01) values were higher for the 29" bike with no significant differences in the average power values recorded. In conclusion, bicycles with 29" wheels transmit higher levels of vibration to riders.

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26 和 29 英寸车轮直径对越野山地自行车振动传递的影响。

骑自行车的人所经历的振动会影响他们的表现和健康。我们以 55 名自行车运动员为样本，分析了山地自行车（26 或 29 英寸车轮）在 2110 米赛道上传递的振动。结果表明，29 英寸车轮能提高速度（p p = 0.001）。车轮直径对加速度计相关因变量有明显影响（p 0.01），特别是在有效值变量中（p 0.01）。在振动传递变量方面，29 英寸自行车的 LW/FH、RW/FH、LA/RH 和 RA/RH 比率高于 26 英寸自行车。平均心率（p = 0.01）和最大心率（p = 0.01）均高于 26 "自行车。

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来源期刊

Sports Biomechanics 医学-工程：生物医学

CiteScore

5.70

自引率

9.10%

发文量

135

审稿时长

>12 weeks

期刊介绍： Sports Biomechanics is the Thomson Reuters listed scientific journal of the International Society of Biomechanics in Sports (ISBS). The journal sets out to generate knowledge to improve human performance and reduce the incidence of injury, and to communicate this knowledge to scientists, coaches, clinicians, teachers, and participants. The target performance realms include not only the conventional areas of sports and exercise, but also fundamental motor skills and other highly specialized human movements such as dance (both sport and artistic). Sports Biomechanics is unique in its emphasis on a broad biomechanical spectrum of human performance including, but not limited to, technique, skill acquisition, training, strength and conditioning, exercise, coaching, teaching, equipment, modeling and simulation, measurement, and injury prevention and rehabilitation. As well as maintaining scientific rigour, there is a strong editorial emphasis on ''reader friendliness''. By emphasising the practical implications and applications of research, the journal seeks to benefit practitioners directly. Sports Biomechanics publishes papers in four sections: Original Research, Reviews, Teaching, and Methods and Theoretical Perspectives.