Disentangling the energetic costs of step time asymmetry and step length asymmetry in human walking
نویسندگان
چکیده
منابع مشابه
The metabolic and mechanical costs of step time asymmetry in walking.
Animals use both pendular and elastic mechanisms to minimize energy expenditure during terrestrial locomotion. Elastic gaits can be either bilaterally symmetric (e.g. run and trot) or asymmetric (e.g. skip, canter and gallop), yet only symmetric pendular gaits (e.g. walk) are observed in nature. Does minimizing metabolic and mechanical power constrain pendular gaits to temporal symmetry? We mea...
متن کاملWalking speed and step length asymmetry modify the energy cost of walking after stroke.
BACKGROUND A higher energy cost of walking poststroke has been linked to reduced walking performance and reduced participation in the community. OBJECTIVE To determine the contribution of postintervention improvements in walking speed and spatiotemporal gait asymmetry to the reduction in the energy cost of walking after stroke. METHODS In all, 42 individuals with chronic hemiparesis (>6 mon...
متن کاملRelationship between step length asymmetry and walking performance in subjects with chronic hemiparesis.
OBJECTIVE To understand the relationship between step length asymmetry and hemiparetic walking performance. DESIGN Descriptive. SETTING Gait analysis laboratory. PARTICIPANTS Convenience sample of 49 subjects with chronic hemiparesis. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Subjects walked at their self-selected walking speed over both an instrumented mat and forceplates t...
متن کاملEffect of Step Length and Step Period on Walking Speed and Energy Consumption: a Parameter Study
Stability and performance are two main issues in motion of bipeds. To ensure stability of motion, a biped needs to follow specific pattern to comply with a stability criterion such as zero moment point. However, there are infinity many patterns of motion which ensure stability, so one might think of achieving better performance by choosing proper parameters of motion. Step length and step perio...
متن کاملStep length asymmetry is representative of compensatory mechanisms used in post-stroke hemiparetic walking.
Post-stroke hemiparetic subjects walk with asymmetrical step lengths that are highly variable between subjects and may be indicative of the underlying impairments and compensatory mechanisms used. The goal of this study was to determine if post-stroke hemiparetic subjects grouped by step length asymmetry have similar abnormal walking biomechanics compared to non-impaired walkers. Kinematic and ...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2021
ISSN: 0022-0949,1477-9145
DOI: 10.1242/jeb.242258