Biomechanics of Ankle Instability. Part 2: Postural Sway-Reaction Time Relationship.

Mitchell, Andrew; Dyson, Rosemary; Hale, Tudor; Abraham, Corinne

The purpose of this study was to test the hypothesis that ankles with functional instability will demonstrate greater single-limb postural sway (PS) than their contralateral stable joint and stable healthy controls and to examine the relationship between single-limb postural sway and muscular reaction time to a simulated ankle sprain mechanism.  Nineteen male volunteers with a history of unilateral ankle sprain and functional ankle instability (FAI) and 19 healthy male controls performed 12 single-limb PS tests, 3 on each leg with and without vision. Results reveal postural sway deficits in ankles with FAI. They also demonstrate a significant relationship between PL and PB reaction times and postural sway in UA.

Individuals who sustain an acute ankle sprain and those with FAI require rehabilitation that improves proprioception, strengthens the evertors and dorsiflexors, and restores peroneal reaction time.

Medicine & Science in Sports & Exercise, 2008,    40(8), 1522-1528

Link to Abstract

Related posts:

  1. Biomechanics of Ankle Instability. Part 1: Reaction Time to Simulated Ankle Sprain.
  2. Effect of six weeks of dura disc and mini-trampoline balance training on postural sway in athletes with functional ankle instability.
  3. The influence of Mulligan ankle taping during balance performance in subjects with unilateral chronic ankle instability
  4. The Effect of a 4-Week Comprehensive Rehabilitation Program on Postural Control and Lower Extremity Function in Individuals With Chronic Ankle Instability
  5. The Dynamic Postural Control Is Impaired in Patients with Chronic Ankle Instability: Reliability and Validity of the Multiple Hop Test

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