Old adult fallers display reduced flexibility of arm and trunk movements when challenged with different walking speeds
| Autor: | Raziel Riemer, Amir Shapiro, Ronen Debi, Yoav Gimmon, Ilan Kurz, Hisham Rashed, Itshak Melzer, Nataliya Shishov |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Power walking Movement Biophysics STRIDE Kinematics 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Humans Medicine Orthopedics and Sports Medicine Treadmill Gait Aged business.industry Rehabilitation Age Factors Torso 030229 sport sciences Adaptation Physiological Trunk Biomechanical Phenomena Walking Speed Preferred walking speed Cross-Sectional Studies Increased risk Arm Exercise Test Physical therapy Accidental Falls Female business Range of motion 030217 neurology & neurosurgery |
| Zdroj: | Gait & Posture. 52:280-286 |
| ISSN: | 0966-6362 |
| Popis: | Specific patterns of pelvic and thorax motions are required to maintain stability during walking. This cross-sectional study explored older-adults' gait kinematics and their kinematic adaptations to different walking speeds, with the purpose of identifying mechanisms that might be related to increased risk for falls. Fifty-eight older adults from self-care residential facilities walked on a treadmill, whose velocity was systematically increased with increments of 0.1meters/second (m/s) from 0.5 to 0.9m/s, and then similarly decreased. Thorax, pelvis, trunk, arms, and legs angular total range of motion (tROM), stride time, stride length, and step width were measured. Twenty-one of the subjects reported falling, and 37 didn't fall. No significant effect of a fall history was found for any of the dependent variables. A marginally significant interaction effect of fall history and walking speed was found for arms' tROM (p=0.098). Speed had an effect on many of the measures for both groups. As the treadmill's velocity increased, the non-fallers increased their arm (15.9±8.6° to 26.6±12.7°) and trunk rotations (4.7±1.9° to 7.2±2.8°) tROM, whereas for the fallers the change of arm (14.7±14.8° to 20.8±13°) and trunk (5.5±2.9° to 7.3±2.3°) rotations tROM were moderate between the different walking speeds. We conclude that walking speed manipulation exposed different flexibility trends. Only non-fallers demonstrated the ability to adapt trunk and arm ROM to treadmill speed i.e., had a more flexible pattern of behavior for arm and trunk motions, supporting the upper-body's importance for stability while walking. |
| Databáze: | OpenAIRE |
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