Effects of age,sex and task on postural sway during quiet stance |
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| Institution: | 1. University of Primorska, Faculty of Health Sciences, Polje 42, SI-6310 Izola, Slovenia;2. University of Primorska, Andrej Maru?i? Institute, Muzejski trg 2, SI-6000 Koper, Slovenia;3. InnoRenew CoE, Human Health Department, Livade 6, SI-6310 Izola, Slovenia;4. S2P, Science to Practice, Ltd., Laboratory for Motor Control and Motor Behavior, Tehnolo?ki park 19, SI-1000 Ljubljana, Slovenia;5. Faculty of Kinesiology, University of Zagreb, 10110 Zagreb, Croatia;6. Motus Melior Ltd., Hektorovi?eva 2, 10000 Zagreb, Croatia;1. Fondation Ildys, Brest, France;2. LATIM, Inserm U1101, Brest, France;3. Université de Bretagne Occidentale, Brest, France;4. Service de Médecine Physique et de Réadaptation, CHRU Brest, France;5. Service de chirurgie infantile, CHRU Brest, France;1. Department of Kinesiology and Physical Education, Wilfrid Laurier University, Waterloo, ON, Canada;2. Univ Rennes, Inria, CNRS, IRISA, M2S, France;1. Shanghai University of Sport, School of Physical Education and Sport Training, Shanghai, China;2. Suzhou Early Childhood Education College, Suzhou, Jiangsu Province, China;3. Huangqiao Central Kindergarten, Suzhou, Jiangsu Province, China;4. Department of Physical Education, Sanda University, Shanghai, China;5. Shanghai Research Center for Physical Fitness and Health of Children and Adolescents, Shanghai, China |
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| Abstract: | BackgroundPostural sway during quiet standing has been shown as a useful task to assess risk of falling in older adults. While the risk of falling is consistently reported to be higher in older females than males, the sex-related differences in postural sway are not consistent across the studies.Research questionWhat are the effects of age and sex on postural sway during quiet standing during different stance conditions?MethodsWe examined the effects of age (40 young and 34 older adults), sex (37 males and 37 females), and their interaction on the postural sway during different stance conditions. We compared the center of pressure (CoP) velocity, amplitude and frequency during parallel (eyes open and eyes closed) and semi-tandem (eyes open) stances.ResultsOur results suggest that postural sway is similar between sexes in young participants, while older males exhibit larger postural sway than older female participants (10/21 outcomes). Older female participants exhibited lower CoP amplitude (but larger total and anterior-posterior CoP velocity) compared to young female participants. We also found that the increase in the postural sway with increasing task difficulty is more pronounced in older vs. young adults.SignificanceThis study shows that ageing-related changes in postural sway are sex- and task-specific. Researchers and clinicians need to be aware of these effects when comparing groups or monitoring changes in time. |
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| Keywords: | Body sway Balance Falls Elderly Centre of pressure |
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