Enrique Moreno Mañas, Salvador Llana-Belloch, Vicent Úbeda-Pastor, Xavier Garcia-Massó
{"title":"The effect of 26 versus 29-inch wheel diameter in the transmission of vibrations in cross-country mountain biking.","authors":"Enrique Moreno Mañas, Salvador Llana-Belloch, Vicent Úbeda-Pastor, Xavier Garcia-Massó","doi":"10.1080/14763141.2021.1968480","DOIUrl":null,"url":null,"abstract":"<p><p>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 (<i>p</i> < 0.001) and thus performance but it also increases exposure to vibrations as the root mean square (RMS) indicate (<i>p</i> = 0.001). The wheel diameter significantly affected the accelerometer-related dependent variables (<i>p < </i>0.01), specifically seen in the RMS variable (<i>p < </i>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 (<i>p</i> = 0.01) and maximum heart rate (<i>p</i> < 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.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1080/14763141.2021.1968480","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2021/8/25 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
引用次数: 0
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.