2003
DOI: 10.1152/japplphysiol.00670.2002
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Energy cost and muscular activity required for propulsion during walking

Abstract: We reasoned that with an optimal aiding horizontal force, the reduction in metabolic rate would reflect the cost of generating propulsive forces during normal walking. Furthermore, the reductions in ankle extensor electromyographic (EMG) activity would indicate the propulsive muscle actions. We applied horizontal forces at the waist, ranging from 15% body weight aiding to 15% body weight impeding, while subjects walked at 1.25 m/s. With an aiding horizontal force of 10% body weight, 1) the net metabolic cost o… Show more

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Cited by 210 publications
(203 citation statements)
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References 26 publications
(29 reference statements)
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“…This action can cause a reduction in energy expenditure. [69][70][71] In other words, to control walking and the alternation, the motor output of spinal motor neurons reciprocating limb loading, [72][73][74] the afferent feedback from the ankle joint is important.…”
Section: Discussionmentioning
confidence: 99%
“…This action can cause a reduction in energy expenditure. [69][70][71] In other words, to control walking and the alternation, the motor output of spinal motor neurons reciprocating limb loading, [72][73][74] the afferent feedback from the ankle joint is important.…”
Section: Discussionmentioning
confidence: 99%
“…Similarly, Hornby et al [12] found that Lokomat robot-assisted therapy in 62 patients with chronic stroke was not superior to the conventional gait training. Such inconsistent results in the Lokomat robot-assisted studies may result from different experimental design and testing methods utilized [10], lack of volitional neuromuscular control [14], restricted pelvic and trunk movement control [15,16], arm swing, as well as altered acceleration and deceleration from pre-swing to initial contact [17]. …”
Section: End-effector Type Of Robot-assisted Gait Trainingmentioning
confidence: 99%
“…For hemiplegia patients, balance exercise in relation to weight bearing on their paretic lower extremity is the key to therapeutic intervention for their rehabilitation 12) . Further, weight bearing on the affected side in ADL affects hemiplegia patients' gait cycle, and stability during standing on one leg plays a crucial role in lower extremity muscle activity as well as stabilization of body sway 13) .…”
Section: Introductionmentioning
confidence: 99%