Results 211 to 220 of about 345,589 (262)
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Metabolic costs of stoopwalking and crawling
Applied Ergonomics, 1985This paper is a study of the metabolic costs of crawling and stoopwalking as performed by trained male and female subjects. After training, male and female subjects crawled and stoopwalked at a range of task speeds and in task postures set at 100, 90, 80, 70, and 60% of each subject's erect stature.
S J, Morrissey, C E, George, M M, Ayoub
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The Metabolic Cost of Swimming in Ducks
Journal of Experimental Biology, 1970ABSTRACT The metabolic cost of swimming was studied in mallard ducks (Anas platy-rhynchos) which had been trained to swim steadily in a variable-speed water channel. At speeds of from 0·35 to 0·50 m/sec the oxygen consumption remained relatively constant at approximately 2·2 times the resting level. At speeds of 0·55 m/sec and higher the
H D, Prange, K, Schmidt-Nielsen
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Metabolic Cost of Rope Training
Journal of Strength and Conditioning Research, 2015Rope training, consisting of vigorously undulating a rope with the upper body, has become a popular cardiovascular training choice in fitness centers and athletic performance enhancement facilities. Despite widespread use and growing popularity, little is known about the metabolic demands of rope training.
Charles J, Fountaine, Brad J, Schmidt
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The metabolic cost of neural information
Nature Neuroscience, 1998We derive experimentally based estimates of the energy used by neural mechanisms to code known quantities of information. Biophysical measurements from cells in the blowfly retina yield estimates of the ATP required to generate graded (analog) electrical signals that transmit known amounts of information.
S B, Laughlin +2 more
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The Metabolic Cost of Force Generation
Medicine & Science in Sports & Exercise, 2003The purpose of this study was to provide support, based on a review of existing data, for a general relationship between metabolic cost and force generated. There are confounding factors that can affect metabolic cost, including muscle contraction type (isometric, eccentric, or concentric), length, and speed as well as fiber type (e.g., fast or slow ...
Bryant L, Sih, James H, Stuhmiller
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The Metabolic Cost Of Swimming In Marine Homeotherms
Journal of Experimental Biology, 1997ABSTRACT This paper describes a model of the metabolic cost of swimming in pinnipeds and its application to other marine homeotherms. The model takes account of both hydrodynamic and thermal processes. The thermal component incorporates both free and forced convection and takes account of the effect of hair on free convection. Using data
Hind, A., Gurney, William
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A Theory of Metabolic Costs for Bipedal Gaits
Journal of Theoretical Biology, 1997A simple model predicts the energy cost of bipedal locomotion for given speed, stride length, duty factor and shape factor. (The duty factor is the fraction of stride duration, for which a foot is on the ground, and the shape factor describes the pattern of force exerted on the ground).
A.E. Minetti, R. M.c.N. Alexander
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Predicting metabolic cost of level walking
European Journal of Applied Physiology and Occupational Physiology, 1978Energy expenditure in walking is usually expressed as a function of walking speed. However, this relationship applies only to freely adopted step length-step rate patterns. Both the step length and the step rate must be used to preduct the energy expenditure for any combination of step length and step rate. Evidence on seven subjects indicates that the
M Y, Zarrugh, C W, Radcliffe
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The Metabolic Cost of Two Kayaking Techniques
International Journal of Sports Medicine, 1995A common technique employed in flatwater kayak and canoe races is "wash riding", in which a paddler positions his/her boat on the wake of a leading boat and, at a strategic moment, drops off the wake to sprint ahead. It was hypothesized that this manoeuver was energy efficient, analogous to drafting in cycling.
G L, Gray, G O, Matheson, D C, McKenzie
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Metabolic Energy Cost of Unrestrained Walking
Physical Therapy, 1976Physiologic factors of metabolic energy cost as well as selected mechanical characteristics of gait are described in a group of 40 presumably normal men and women between the ages of 20 and 60 years. Special emphasis was placed on unrestrained (free cadence) walking to provide a reliable baseline for comparison to persons with physical gait impairments.
R L, Blessey +3 more
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