An Observational Study of the Kinematic Characteristics of the Acromion-pelvic Angle during Walking in Stroke Patients

Neural Injury and Functional Reconstruction ›› 2025, Vol. 20 ›› Issue (8) : 446-451.

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Neural Injury and Functional Reconstruction ›› 2025, Vol. 20 ›› Issue (8) : 446-451.

An Observational Study of the Kinematic Characteristics of the Acromion-pelvic Angle during Walking in Stroke Patients

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Abstract

To investigate the kinematic characteristics of acromion-pelvic angle during walking in stroke patients by comparing them with healthy subjects, and to analyze the reasons underneath from biomachanic perspective. Methods: A total of 45 stroke subjects (stroke group) and 9 healthy subjects (control group) were recruited from the Department of Rehabilitation Medicine, West China Hospital, Sichuan University. 3D gait analysis was used to compare whether there were statistical differences between two groups in the main outcome indicators such as gait speed, stance time, peak acromion-pelvic angle during stance phase, and peak acromion-pelvic angle during whole gait cycle. In addition, the reasons for the statistical difference between the two groups were analyzed from the biomechanical perspective. Results: Compared with healthy adults, there were statistically significant differences in peak acromion-pelvic angle during stance phase, peak acromion-pelvic angle during whole gait cycle, and gait speed (all P<0.01). This study also found that the maximum value of acromion-pelvic angle during stance phase in stroke patients was positively correlated with peak foot angle, and negatively correlated with minimum thorax rotation angle, minimum ankle dorsiflexion-plantar flexion angle, and minimum value of ankle moment. The maximum acromion-pelvic angle was positively correlated with peak hip saggital moment, hip saggital power, and foot angle, and negatively correlated with minimum hip flexion and extension angle, minimum ankle dorsiflexion-plantar flexion angle, and minimum ankle sagittal moment in stroke patients (all P<0.05 and ρ>0.5). Conclusion: In this study, it was found that the change of acromion-pelvic angle during walking in stroke patients decreased compared with that of healthy people, and the movement pattern was mainly in phase. From the perspective of biomechanics, the coupling relationship between kinematics and dynamics of lower limbs is understood, and hip strategy is the main focus.

Key words

stroke; acromion-pelvic angle; gait analysis; biomechanics

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An Observational Study of the Kinematic Characteristics of the Acromion-pelvic Angle during Walking in Stroke Patients[J]. Neural Injury and Functional Reconstruction. 2025, 20(8): 446-451
PDF(1044 KB)

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