title: Differentiated influence of off-road and on-road cycling practice on balance control and the related-neurosensory organization.
abstract: This study aimed to determine the sensorimotor strategies privileged by mountain bikers (MTB) and road cyclists (RC) for balance control. Twenty-four MTB and 24 RC (off-road Olympics, world, continental and national champions, Tour-de-France participants, on-road world cup race winner) volunteered to answer a questionnaire about the characteristics of cycling practice and perform a sensory organization test, aiming to evaluate balance control in 6 different sensory situations based upon visual and support surface perturbations (C1(ES) to C6(ES)). RC balance performances were better than those of MTB both during quiet stance eyes opened (C1(ES), p=0.011) and when only somatosensory information is disrupted (C4(ES), p=0.039), highlighting a higher use of vision to control balance in RC. Moreover, a positive correlation was shown in the whole population (MTB+RC) between the visual ratio (R(VIS)=C4(ES)/C1(ES)) and the proportion of riding distance of on-road cycling (rho=0.28, p=0.054). In MTB, the use of proprioception (somatosensory ratio: R(SOM)=C2(ES(eyes closed))/C1(ES)) was increased by a higher intensity of off-road cycling (rho=0.49, p=0.018) and that of vision (R(VIS)) by a higher intensity of on-road cycling (rho=0.41, p=0.048). The difference in sensory organization between MTB and RC could be explained by adaptive processes elaborated from environmental stimulations and technical specificities of these disciplines.
authors.affiliation: Nancy-University, Henri Poincaré University, Balance Control and Motor Performance, UFR STAPS, 54600 Villers-lès-Nancy, France.
authors.forename: Alexis
authors.initials: A
authors.lastname: Lion
authors.forename: Gérome C
authors.initials: GC
authors.lastname: Gauchard
authors.forename: Dominique
authors.initials: D
authors.lastname: Deviterne
authors.forename: Philippe P
authors.initials: PP
authors.lastname: Perrin
mesh_terms: D001642:Bicycling / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D010809:Physical Fitness / Q000502:physiology*; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D011434:Proprioception / Q000502:physiology*; D055815:Young Adult