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Article Dans Une Revue Gait & Posture Année : 2016

The effects of acute experimental hip muscle pain on dynamic single-limb balance performance in healthy middle-aged adults

Résumé

Middle-aged adults with painful hip conditions show balance impairments that are consistent with an increased risk of falls. Pathological changes at the hip, accompanied by pain, may accelerate pre-existing age-related balance deficits present in midlife. To consider the influence of pain alone, we investigated the effects of acute experimental hip muscle pain on dynamic single-limb balance in middle-aged adults. Thirty-four healthy adults aged 40-60 years formed two groups (Group-1: n=16; Group-2: n=18). Participants performed four tasks: Reactive Sideways Stepping (ReactSide); Star Excursion Balance Test (SEBT); Step Test; Single-Limb Squat; before and after an injection of hypertonic saline into the right gluteus medius muscle (Group-1) or ∼5min rest (Group-2). Balance measures included the range and standard deviation of centre of pressure (CoP) movement in mediolateral and anterior-posterior directions, and CoP total path velocity (ReactSide, Squat); reach distance (SEBT); and number of completed steps (Step Test). Data were assessed using three-way analysis of variance. Motor outcomes were altered during the second repetition of tasks irrespective of exposure to experimental hip muscle pain or rest, with reduced SEBT anterior reach (-1.2±4.1cm, P=0.027); greater step number during Step Test (1.5±1.7 steps, P<0.001); and slower CoP velocity during Single-Limb Squat (-4.9±9.4mms-1, P=0.024). Factors other than the presence of pain may play a greater role in balance impairments in middle-aged adults with hip pathologies.
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Dates et versions

hal-03353525 , version 1 (31-05-2022)

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Anna Hatton, François Hug, Sarah Chen, Christine Reid, Nicole Sorensen, et al.. The effects of acute experimental hip muscle pain on dynamic single-limb balance performance in healthy middle-aged adults. Gait & Posture, 2016, 50, pp.201-206. ⟨10.1016/j.gaitpost.2016.09.007⟩. ⟨hal-03353525⟩
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