A Relationship between a Freely Chosen Working Pace and Energy Consumption Curves

En, Corlett; Mahadeva, K.

doi:10.1080/00140137008931167

Cited by 34 publications

(8 citation statements)

References 2 publications

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“…All children with CP in our studies accomplished this 4-min test at a self-paced rate, during which their ME net is probably the highest [33]. Jeng et al found that ND and children with CP voluntarily adopt a frequency and movement pattern of walking that minimizes energy cost [34].…”

Section: Discussionmentioning

confidence: 94%

Prediction of mechanical efficiency from heart rate during stair-climbing in children with cerebral palsy

et al. 2008

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Section: Discussionmentioning

confidence: 94%

Prediction of mechanical efficiency from heart rate during stair-climbing in children with cerebral palsy

et al. 2008

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“…In addition, energetic cost is minimized in many preferred rhythmical behaviors (e.g., Corlett & Mahaveda, 1970;Wilke, 1977).…”

Section: Potential Optimality Criteriamentioning

confidence: 99%

“…For example, the optimality criterion for a marathon runner is likely to be the minimization of metabolic cost. In addition to locomotion, the preferred frequency has been shown to minimize metabolic cost in a number of repetitive activities such as tire pumping (Corlett & Mahaveda, 1970), wheelchair locomotion (Sargent & van der Woude, 1988), and arm ergometry (Salvendy & Pilitsis, 1971).…”

Section: Self-optimizationmentioning

confidence: 99%

Energetic Cost and Stability during Human Walking at the Preferred Stride Frequency

Holt

Jeng

Ratcliffe

et al. 1995

Journal of Motor Behavior

222

116

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The possibility that preferred modes of locomotion emerge from dynamical and optimality constraints and the energetic and dynamical constraints on preferred and predicted walking frequency are explored in this article. Participants were required to walk on a treadmill at their preferred frequency, at a frequency predicted as the resonance of a hybrid pendulum-spring model of the legs, and at frequencies +/-15%, +/-25%, +/-35% of the predicted frequency. Walking at the preferred and predicted frequencies resulted in minimal metabolic costs and maximal stability of the head and joint actions. Mechanical energy conservation was constant across conditions. The head was more stable than the joints. The joints appeared to be in service of the head in maintaining a stable trajectory. The major findings of this study suggest a complementary relationship between energetic (physiological) and stability constraints in the adoption of a preferred frequency of walking. Multiple subsystems may be involved in constraining observed macroscopic behavior in intact biological systems. The approach and results of the study imply that a useful tack in understanding how dynamical control structures arise is to study the potential criteria that serve to act as constraints on skilled movement patterns in unimpaired and impaired populations.

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“…The force applied is the body weight (kg) and the work is calculated as the product (kg 6 m), i.e., external work ¼ body weight 6 number of stair ascents 6 stair height. The children climbed stairs at a self-paced speed because at that speed their performance is optimal and MEg is highest [25].…”

Section: Tests and Measurementmentioning

confidence: 99%

Random perturbation: A potential aid in treatment of children with cerebral palsy

Bar-Haim

Harries

Belokopytov

et al. 2008

Disability and Rehabilitation

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A Relationship between a Freely Chosen Working Pace and Energy Consumption Curves

Cited by 34 publications

References 2 publications

Prediction of mechanical efficiency from heart rate during stair-climbing in children with cerebral palsy

Prediction of mechanical efficiency from heart rate during stair-climbing in children with cerebral palsy

Energetic Cost and Stability during Human Walking at the Preferred Stride Frequency

Random perturbation: A potential aid in treatment of children with cerebral palsy

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