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Titolo:
Microprocessor-based gait analysis system to retrain Trendelenburg gait
Autore:
Petrofsky, JS;
Indirizzi:
Loma Linda Univ, Sch Allied Hlth, Dept Phys Therapy, Loma Linda, CA 92350 USA Loma Linda Univ Loma Linda CA USA 92350 Therapy, Loma Linda, CA 92350 USA
Titolo Testata:
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
fascicolo: 1, volume: 39, anno: 2001,
pagine: 140 - 143
SICI:
0140-0118(200101)39:1<140:MGASTR>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIOFEEDBACK;
Keywords:
gait; physical therapy; electromyogram; biofeedback; spinal cord injury; stroke;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Petrofsky, JS Loma Linda Univ, Sch Allied Hlth, Dept Phys Therapy, Loma Linda, CA 92350 USA Loma Linda Univ Loma Linda CA USA 92350 Linda, CA 92350 USA
Citazione:
J.S. Petrofsky, "Microprocessor-based gait analysis system to retrain Trendelenburg gait", MED BIO E C, 39(1), 2001, pp. 140-143

Abstract

A microprocessor-based gait analysis system is described that uses two electromyogram (EMG) amplifiers, two foot switches and an audio feedback device to allow the retraining of one type of improper gait, where the hip abductors (gluteus medius muscles) are weak on one side of the body, causing theopposite hip to drop during the swing phase of gait (Trendelenburg gait). As the abnormality is strictly on one side of the body in most people, the circuitry is minimised, as gait can be analysed by only comparing muscle activity in the affected gluteus medius muscle with that in the unaffected gluteus medius muscle, through the EMG. Two foot contact switches are used tohelp assess timing of the step cycle. If gait is different on the two sides of the body, an audio cue directs the patient to correct the abnormality by increasing activity on the affected side. The device is tested on five patients. Trendelenburg gait is reduced by an average of 29 degrees through the use of the device. The average stride length at the beginning of the study is 0.32+/-0.3m. By the end of the study, the stride length is increasedto 0.45+/-0.2m for the entire group of five subjects. The speed of gait has increased from 1.6+/-0.4 km h(-1) to 3.1+/-0.5 km h(-1).

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Documento generato il 06/04/20 alle ore 01:23:15