Biomechanical Behavior of Muscle-Tendon Complex during Dynamic Human Movements

Fukashiro, Senshi; Hay, Dean C.; Nagano, Akinori

doi:10.1123/jab.22.2.131

Cited by 76 publications

(72 citation statements)

References 107 publications

(137 reference statements)

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“…Ultrasonography allows muscle strain measurement of superficial muscles 35 , but not deeper muscle tissue. Computer simulations can often predict the relationship between muscle mechanics and energetics [36][37][38][39][40] . Without empirical data to verify the simulated results, however, it is difficult to validate their accuracy.…”

Section: The Complex Relationship Between Mechanics and Energeticsmentioning

confidence: 99%

A Physiologist's Perspective on Robotic Exoskeletons for Human Locomotion

Ferris

Sawicki

Daley

2007

Int. J. Human. Robot.

161

108

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Technological advances in robotic hardware and software have enabled powered exoskeletons to move from science fiction to the real world. The objective of this article is to emphasize two main points for future research. First, the design of future devices could be improved by exploiting biomechanical principles of animal locomotion. Two goals in exoskeleton research could particularly benefit from additional physiological perspective: 1) reduction in the metabolic energy expenditure of the user while wearing the device, and 2) minimization of the power requirements for actuating the exoskeleton. Second, a reciprocal potential exists for robotic exoskeletons to advance our understanding of human locomotor physiology. Experimental data from humans walking and running with robotic exoskeletons could provide important insight into the metabolic cost of locomotion that is impossible to gain with other methods. Given the mutual benefits of collaboration, it is imperative that engineers and physiologists work together in future studies on robotic exoskeletons for human locomotion.

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Section: The Complex Relationship Between Mechanics and Energeticsmentioning

confidence: 99%

A Physiologist's Perspective on Robotic Exoskeletons for Human Locomotion

Ferris

Sawicki

Daley

2007

Int. J. Human. Robot.

161

108

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“…Fiber pennation angle is an important functional characteristic of muscle (Fukashiro et al, 2006). Muscles with large pennation angles such as the soleus allow more fibers to be arranged in parallel within a given cross sectional area, thereby increasing a muscle's force generating potential.…”

Section: Introductionmentioning

confidence: 99%

Can pennation angles be predicted from EMGs for the primary ankle plantar and dorsiflexors during isometric contractions?

Manal

Roberts

Buchanan

2008

Journal of Biomechanics

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Ultrasonography was used to measure pennation angle and electromyography (EMG) to record muscle activity of the human tibialis anterior (TA), lateral gastrocnemius (LG), medial gastrocnemius (MG), and soleus (SOL) muscles during graded isometric ankle plantar and dorsiflexion contractions done on a Biodex dynamometer. Data from eight male and eight female subjects were collected in increments of approximately 25% of maximum voluntary contraction (MVC) ranging from rest to MVC. A significant positive linear relationship (p < 0.05) between normalized EMG and pennation angle for all muscles was observed when subject specific pennation angles at rest and MVC were included in the analysis. These were included to account for gender differences and inter-subject variability in pennation angle. The coefficient of determination, R 2 , ranged between 0.76 for the TA to 0.87 for the SOL. The EMG-pennation angle relationships have ramifications for use in EMGdriven models of muscle force. The regression equations can be used to characterize fiber pennation angle more accurately and to determine how it changes with contraction intensity, thus providing improved estimates of muscle force when using musculoskeletal models.

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“…[7] Fukashiro et al reviewed the research findings regarding the force and length changes of the muscle-tendon complex during dynamic human movements, especially those using ultrasonography and computer simulation. [8] In this study, the author investigated the effects of vibration training on the biomechanical effects on achilles tendom in rats among different frequencies.…”

Section: Introductionmentioning

confidence: 99%

Biomechanics Effects of Vibration Intervention on Achilles tendon in Rats among Different Frequencies

Gu¹

2015

Proceedings of the 2015 International Conference on Applied Science and Engineering Innovation

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Abstract. The objective of this objective was to investigate the biomechanical effects of vibration intervention training on tendon in rats. Sixty rats were randomly assigned to four groups: rest control group, 25Hz vibration training group, 35Hz vibration training group, and 45-Hz vibration training group, 15 rats per group. Vibration training was provided to each training group of rats on the Power Plate vibration training platform. The conclusion showed that 25Hz was the suitable frequency for vibration training of rat Achilles tendons. The training using suitable frequency can significantly improve the biomechanical property of the Achilles tendons and produce adaptive function changes so as to reduce the damage probability of the muscle-tendon complex and increased the exercise efficiency. In the meantime, the vibration frequency for the training shall not be the same as or close to the inherent frequency of the trained parts and systems to achieve the desired effect.

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Biomechanical Behavior of Muscle-Tendon Complex during Dynamic Human Movements

Cited by 76 publications

References 107 publications

A Physiologist's Perspective on Robotic Exoskeletons for Human Locomotion

A Physiologist's Perspective on Robotic Exoskeletons for Human Locomotion

Can pennation angles be predicted from EMGs for the primary ankle plantar and dorsiflexors during isometric contractions?

Biomechanics Effects of Vibration Intervention on Achilles tendon in Rats among Different Frequencies

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