Mechanically induced ankle inversion during human walking and jumping

A new method to study sudden ankle inversions during human walking and jumping is presented. Ankle inversions of 25° were elicited using a box containing a trap door. During the gait task, subjects walked at a speed of 4 km/h. At a pre-programmed delay after left heel strike, an electromagnet releas...

Full description

Saved in:
Bibliographic Details
Published in:Journal of neuroscience methods 2002-06, Vol.117 (2), p.133-140
Main Authors: Nieuwenhuijzen, P.H.J.A, Grüneberg, C, Duysens, J
Format: Article
Language:English
Subjects:
Adult
Ankle inversion
Ankle Joint - physiology
Biological and medical sciences
Electromyography - methods
EMG
Exercise Test
Female
Fundamental and applied biological sciences. Psychology
Gait - physiology
Human walking
Humans
Jumping
Male
Mechanical perturbation
Reaction Time - physiology
Reflex - physiology
Sprains and Strains - physiopathology
Treadmill
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
Walking - physiology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new method to study sudden ankle inversions during human walking and jumping is presented. Ankle inversions of 25° were elicited using a box containing a trap door. During the gait task, subjects walked at a speed of 4 km/h. At a pre-programmed delay after left heel strike, an electromagnet released the box on the treadmill. This delay enabled the subject to step on the box without having to change the walking cadence. During the jumping task, subjects jumped from a 30 cm high platform on the box in a standardised way. In both tasks 20 stimulus and 20 control trials were presented randomly. The average tilting velocity of the trap door during the stimulus trials was 403°/s during the walking task and 595°/s during the jumping task. For the control trials a tilting of 0° was used. With this method it is possible to evoke reproducible ankle inversions causing characteristic EMG responses in six lower leg muscles.
ISSN:0165-0270
1872-678X
DOI:10.1016/S0165-0270(02)00089-4