Hip torques and the effect of posture in side-stepping with elastic resistance

The way movement-based exercises affect targeted muscles is not always obvious. Side stepping with an elastic band around the forefeet is aimed at strengthening hip abductors and lateral rotator muscles, with the premise that it creates an external torque of adduction and medial rotation of the femu...

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Bibliographic Details
Published in:Gait & posture 2022-03, Vol.93 (NA), p.119-125
Main Authors: Medeiros, Heron B.O., Silvano, Géssica A., Herzog, Walter, Nunes, Marcio O., de Brito Fontana, Heiliane
Format: Article
Language:English
Subjects:
Adult
Biomechanical Phenomena
Biomechanics
Exercise
Hip - physiology
Hip Joint - physiology
Hip moment
Humans
Lateral rotation
Muscle, Skeletal - physiology
Neuromuscular training
Posture
Resistance Training
Strength
Torque
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Summary:The way movement-based exercises affect targeted muscles is not always obvious. Side stepping with an elastic band around the forefeet is aimed at strengthening hip abductors and lateral rotator muscles, with the premise that it creates an external torque of adduction and medial rotation of the femur around the pelvis that needs to be counteracted by hip muscles. However, hip torques during this exercise have not been previously quantified. Is the premise that the side-stepping exercise creates an external torque of adduction and medial rotation of the femur around the pelvis correct? Thirty-six adults performed the exercise in an upright and a squat posture while 3D kinetic and kinematic data were collected. Hip muscle torques were calculated using inverse dynamics. The effect of posture and potential interactions with sex, side-stepping phases, and trailing/leading directions were analyzed using Pearson correlation and mixed-model ANOVAs. A hip net muscle torque of extension, abduction and medial rotation was required to perform the exercise, regardless of phase and direction. The net muscle torque towards medial rotation required during the exercise was smaller (P 
ISSN:0966-6362
1879-2219
DOI:10.1016/j.gaitpost.2022.01.021