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Related Concept Videos

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Bones of the Lower Limb: Femur and Patella

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Hamstring spasticity assessment: does the hip flexion angle impact outcomes?

Megan Banky1,2, Ross A Clark3, Benjamin F Mentiplay4

  • 1Department of Physiotherapy, Epworth HealthCare, Melbourne, Australia.

Disability and Rehabilitation
|December 15, 2023
PubMed
Summary
This summary is machine-generated.

Assessing hamstring spasticity at 40° hip flexion, instead of 90°, may improve accuracy and relevance for walking. This change could better identify individuals needing interventions for improved mobility.

Keywords:
Muscle spasticitygaitoutcome assessmentrehabilitationvalidity

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Area of Science:

  • Neurology
  • Rehabilitation Medicine
  • Biomechanics

Background:

  • Hamstring spasticity is common after neurological injuries.
  • Current assessment methods may lack real-world applicability for walking.
  • Standard assessment uses 90° hip flexion, which differs from typical walking biomechanics.

Purpose of the Study:

  • To compare hamstring spasticity assessment outcomes at 40° and 90° hip flexion.
  • To evaluate the ecological validity of different hip flexion angles for hamstring spasticity assessment.
  • To determine if a reduced hip flexion angle improves assessment relevance for walking.

Main Methods:

  • The Modified Ashworth Scale and Modified Tardieu Scale were used.
  • 35 adults with neurological conditions participated.
  • 105 trials were conducted across two hip flexion angles (40° and 90°) with three assessors.

Main Results:

  • Spasticity was rated higher at 90° hip flexion using both scales (p=.012 for MAS, p<.001 for MTS).
  • Spasticity severity was significantly greater at 90° hip flexion (ES=.50 for MAS, ES=.47 for MTS).
  • The reaction angle occurred earlier at 90° hip flexion (p<.001, ES=1.61).

Conclusions:

  • Assessing hamstring spasticity at 40° hip flexion may reduce passive muscle insufficiency.
  • This lower angle improves ecological validity for walking-related assessments.
  • It could aid in selecting patients for interventions aimed at improving walking function.