0000000000437585

AUTHOR

Senshi Fukashiro

showing 3 related works from this author

Biomechanical Loading of Achilles Tendon During Normal Locomotion

1992

Direct in vivo Achilles tendon force measurements open up new possibilities for understanding the loading of the Achilles tendon during natural locomotion. This article describes how these human experiments can be performed. The results of these experiments imply that Achilles tendon forces are unexpectedly high in certain activities (e.g., hopping) and that the rates of loading rather than the absolute magnitudes of the recorded forces may be more relevant for clinical purposes as well as for the construction of artificial tendon materials.

AdultMalemusculoskeletal diseasesAchilles tendonTendo Calcaneusbusiness.industryTransducersBiomechanicsPhysical Therapy Sports Therapy and RehabilitationWalkingAnatomymusculoskeletal systemAchilles TendonBicyclingBiomechanical PhenomenaRunningBiomechanical PhenomenaTendonmedicine.anatomical_structureHumansMedicineOrthopedics and Sports MedicinebusinessLocomotionBiomedical engineeringClinics in Sports Medicine
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In vivo achilles tendon loading' during jumping in humans

1995

Elastic behaviour of the human tendomuscular system during jumping was investigated by determination of the in vivo Achilles tendon force. A buckle-type transducer was implanted under local anaesthesia around the right Achilles tendon of an adult subject. After calibration, the Achilles tendon force was recorded together with the triceps surae muscle electromyogram activity and high speed filming and ground reaction force during: a maximal vertical jump from a squat position, a maximal vertical jump from an erect standing position with a preliminary counter-movement, and repetitive submaximal hopping on the spot. Jumping heights were 33, 40 and 7 cm in the squat, the counter movement, and t…

AdultMalemusculoskeletal diseasesMaterials sciencePhysiologyPhysical ExertionSquatmedicine.disease_causeAchilles TendonVertical jumpJumpingTriceps surae musclePhysiology (medical)medicineHumansOrthopedics and Sports MedicineGround reaction forceMuscle SkeletalAchilles tendonElectromyographyWork (physics)Public Health Environmental and Occupational HealthGeneral MedicineAnatomymusculoskeletal systemElasticityBiomechanical PhenomenaTendonmedicine.anatomical_structureEuropean Journal of Applied Physiology and Occupational Physiology
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Directional Control Mechanisms in Multidirectional Step Initiating Tasks.

2020

Typical anticipatory postural adjustments (APAs) in forward gait or step initiation tasks to prepare for possible disturbances caused by prime voluntary movements and to accelerate the body forward have been previously reported. However, it is not clear how wide the variations in step directions are differentiated and controlled in non-forward step initiation tasks during the APA phase. The main goal of this study is to explain the directional control mechanisms by investigating the APA of step initiation tasks in forward, diagonal, lateral, and posterior directions. The center of pressure (COP) trajectories and related muscle (soleus, tibialis anterior, and gluteus medius of both lower lim…

medicine.medical_specialtyeducationgait initiation050105 experimental psychologylcsh:RC321-57103 medical and health sciencesBehavioral Neuroscience0302 clinical medicinePhysical medicine and rehabilitationmultidirectional stepsCenter of pressure (terrestrial locomotion)anticipatory postural adjustment (APA)Step initiationmental disordersmedicine0501 psychology and cognitive sciencesGait initiationlcsh:Neurosciences. Biological psychiatry. NeuropsychiatryBiological PsychiatryYoung maleMathematicsOriginal Researchelectromyography (EMG)05 social sciencescenter of pressure (COP)Human NeuroscienceCenter of mass comPsychiatry and Mental healthNeuropsychology and Physiological PsychologyNeurologycenter of mass (COM)Whole body030217 neurology & neurosurgerypsychological phenomena and processesFrontiers in human neuroscience
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