Kinematic and electromyographic studies on unaided, unilateral and bilateral crutch walking in adolescents with spastic diplegia

Eric Hiu Kwong YEUNG, Hung Kay Daniel CHOW, Ivan Yuen Wang SU

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Background: Back pain and ambulation deterioration among ambulatory individuals with cerebral palsy (CP) are common as they grow older and walking aids are often prescribed to improve stability and promote maximal weight-bear on lower limbs during gait. Objective: To investigate the effects of walking aids on back muscle activity and whole body kinematics among adolescents with spastic diplegia. Study Design: A repeated-measures design was adopted with participants tested under different walking conditions.Methods: Ten participants were recruited and Lofstrand forearm crutches were selected. Both the activity of lumbar erector spinae and the kinematics of head, trunk, pelvis and lower limbs during walking were monitored using telemetric electromyography and motion analysis system respectively. Results: Comparisons between walking unaided and walking with unilateral and bilateral crutch(es) were made. Significant decreases in speed, cadence, erector spinae activity and lower trunk extension were observed during crutch walking together with significantly increased stride time and anterior pelvic tilt. Conclusions: These findings suggested that Lofstrand crutch(es) reduced muscular demands and lumbar lordosis with increased lower back mobility. The results shed light on the prescription of walking aid in the management and prevention of chronic back pain for ambulatory individuals with CP from a life span perspective.Clinical relevanceThis study revealed that four-point reciprocal crutch walking can be prescribed to reduce muscle activity, and hence decrease stress at back, during gait among ambulatory individuals with CP that may serve as an adjunct to back pain management in this population group. Copyright © 2011 The International Society for Prosthetics and Orthotics.

Original languageEnglish
Pages (from-to)63-70
JournalProsthetics and Orthotics International
Volume36
Issue number1
DOIs
Publication statusPublished - 01 Mar 2012

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Crutches
Cerebral Palsy
Biomechanical Phenomena
Walking
Back Pain
Gait
Lower Extremity
Back Muscles
Ursidae
Lordosis
Electromyography
Pain Management
Pelvis
Population Groups
Forearm
Chronic Pain
Prescriptions
Head

Citation

Yeung, E. H. K., Chow, D. H. K., & Su, I. Y. W. (2012). Kinematic and electromyographic studies on unaided, unilateral and bilateral crutch walking in adolescents with spastic diplegia. Prosthetics and Orthotics International, 36(1), 63-70. doi: 10.1177/0309364611429722

Keywords

  • Biomechanics
  • Neuromuscular disorders
  • Gait analysis