Hips Don't Lie: Analyzing Frontal Plane Kinematics in Adults of Varying Ages During Step Tasks

Faculty Mentor

Dr. Kristyne Wiegand

Presentation Type

Poster

Start Date

5-8-2024 11:15 AM

End Date

5-2024 1:00 PM

Location

PUB NCR

Primary Discipline of Presentation

Exercise Science

Abstract

Aging is linked to reduced physical activity, which can lead to a loss of strength and coordination. Older individuals display greater asymmetries and altered kinematic patterns in fundamental movements, which can contribute to injury. PURPOSE: To assess the relationships between age and frontal plane kinematics of the hip and knee during step-up and step-down tasks. METHODS: Eighteen participants completed the study (6 males, age 38.89±16.24). Participants completed three single-leg step-ups and step-downs on each limb from a 25 cm height while 2D kinematics were recorded. Contralateral hip drop and knee valgus angles were identified. The average maximum and minimum values of the dominant limb were calculated across trials. Range of motion (ROM) for each angle was calculated as the average minimum value minus the average maximum value. The relationships between age and hip drop ROM, knee valgus ROM, and contralateral hip drop were assessed using bivariate correlations (α=0.05). RESULTS: No significant correlation was found between age and contralateral hip drop (Right: r=.070, p>0.05; Left: r=-0.032, p> 0.05) or knee valgus (Right: r=-152, p>0.05; Left: r=-0.239, p>0.05) during the single-leg step-up. No significant correlation was found between age and contralateral hip drop (Right: r=-0.112, p>0.05; Left: r=-0.400, p>0.05) or knee valgus on the left limb (r=0.184, p>0.05) during the single-leg step-down. A moderate correlation was observed between age and knee valgus during the single-leg step-down on the right limb (r=0.497, p

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May 8th, 11:15 AM May 1st, 1:00 PM

Hips Don't Lie: Analyzing Frontal Plane Kinematics in Adults of Varying Ages During Step Tasks

PUB NCR

Aging is linked to reduced physical activity, which can lead to a loss of strength and coordination. Older individuals display greater asymmetries and altered kinematic patterns in fundamental movements, which can contribute to injury. PURPOSE: To assess the relationships between age and frontal plane kinematics of the hip and knee during step-up and step-down tasks. METHODS: Eighteen participants completed the study (6 males, age 38.89±16.24). Participants completed three single-leg step-ups and step-downs on each limb from a 25 cm height while 2D kinematics were recorded. Contralateral hip drop and knee valgus angles were identified. The average maximum and minimum values of the dominant limb were calculated across trials. Range of motion (ROM) for each angle was calculated as the average minimum value minus the average maximum value. The relationships between age and hip drop ROM, knee valgus ROM, and contralateral hip drop were assessed using bivariate correlations (α=0.05). RESULTS: No significant correlation was found between age and contralateral hip drop (Right: r=.070, p>0.05; Left: r=-0.032, p> 0.05) or knee valgus (Right: r=-152, p>0.05; Left: r=-0.239, p>0.05) during the single-leg step-up. No significant correlation was found between age and contralateral hip drop (Right: r=-0.112, p>0.05; Left: r=-0.400, p>0.05) or knee valgus on the left limb (r=0.184, p>0.05) during the single-leg step-down. A moderate correlation was observed between age and knee valgus during the single-leg step-down on the right limb (r=0.497, p