Effects of excessive body weight on postural control |
| |
Authors: | Janusz W B?aszczyk Joanna Cie?linska-?wider Michal Plewa Barbara Zahorska-Markiewicz Andrzej Markiewicz |
| |
Institution: | 1. Department of Information Engineering, Università Politecnica delle Marche, Ancona, Italy;2. LAM – Motion Analysis Laboratory – AUSL of Reggio Emilia, Italy;3. Servizio Sottocenerino di Geriatria, Regional Hospitals of Lugano and Mendrisio, Switzerland;1. Laboratory of Neuromechanics, Federal University of Pampa, Uruguaiana, RS, Brazil;2. Laboratory of Biomechanics, University of Brasilia, Brasília, DF, Brazil |
| |
Abstract: | Research that evaluated both static and dynamic stability was performed, to clarify the impact of excessive body weight on postural control. The spontaneous center of foot pressure (CP) motion during quiet stance and a range of forward voluntary CP displacements were studied in 100 obese, and 33 lean women. Characteristics of postural sway were acquired while the subjects were standing quiet on a force plate with eyes open (EO) and with eyes closed (EC). Their anterior range of CP voluntary displacements was assessed upon a range of maximal whole body leanings which were directed forward. A substantial reduction of postural sway was observed in all patients which had increased body weight. Main postural sway parameters i.e., the total path length as well as its directional components were negatively correlated with the body mass and body mass index (BMI). The range of a whole body voluntary forward leaning, did not exhibit any significant change in patients with an obesity grade of I and II. Such a deficit was, however, found in subjects with a body mass index above 40. In conclusion, the increased body weight imposed new biomechanical constraints, that resulted in functional adaptation of the control of the erect posture. This functional adaptation was characterized by a reduced postural sway associated with a substantial reduction of the dynamic stability range in subjects with BMI>40. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|