0% Complete
فارسی
Home
/
سی و دومین کنفرانس ملی و دهمین کنفرانس بین المللی مهندسی زیست پزشکی ایران
Excessive and Variable Center of Mass Motion Characterizes Gait Instability In Women with Obese Knee Osteoarthritis
Authors :
Diba Chegini
1
Behzad Yasrebi
2
Siamak Haghipour
3
Farhad Farhad Tabatabai Ghomsheh
4
Aliakbar Pahlevanian
5
1- ازاد تبریز
2- ازاد تبریز
3- ازاد تبریز
4- دانشگاه علوم توانبخشی و سلامت اجتماعی
5- دانشگاه توانبخشی سمنان
Keywords :
Gait Analysis،Knee Osteoarthritis،Obesity،Center of Mass،Postural Balance،Stability،Biomechanics
Abstract :
Abstract—Background: Elderly women with obese knee osteoarthritis (KOA) represent a population at high risk for impaired balance and falls. Quantifying the dynamic stability of their gait is crucial for understanding this risk and developing targeted interventions. Objective: This study aimed to compare gait stability and balance between healthy young women and elderly women with obese KOA through a comprehensive analysis of center of mass (COM) kinematics. Methods: Forty elderly women with obese KOA (70±4 yrs, 98.8±7.3 kg, 158.6±7.8 cm) and twenty healthy young women (29±5 yrs, 61.2±6.4 kg, 159.5±6.7 cm) underwent 3D gait analysis. A subject-specific OpenSim model was used to compute the COM trajectory for each participant. Key stability metrics—including path, range of motion (ROM), maximum displacement, standard deviation, and their velocity counterparts in the anteroposterior (AP), mediolateral (ML), and vertical (SI) directions—were calculated and normalized to body height. Results: The obese KOA group demonstrated significantly impaired stability across all COM metrics. Specifically, they exhibited a larger COM path, greater ROM, and increased maximum displacement (p<0.05), with the most pronounced differences observed in the ML direction. Furthermore, the obese KOA group showed significantly higher variability, evidenced by greater standard deviation of both COM position and velocity (p<0.05), indicating a less consistent and more unstable gait pattern. Conclusion: Elderly women with obese knee osteoarthritis walk with a gait pattern characterized by excessive and poorly controlled motion of the center of mass, particularly in the mediolateral direction. These objective biomechanical findings highlight a significant deficit in dynamic stability, which likely contributes to a heightened fall risk in this population. Rehabilitation strategies should focus on improving mediolateral balance control to mitigate this risk. Keywords-component; Gait Analysis; Knee Osteoarthritis; Obesity; Center of Mass; Postural Balance; Stability; Biomechanics
Papers List
List of archived papers
Functionally Graded Material Vertebroplasty Screws: A Finite Element Biomechanical Study
Maryam Rahimi - Mohammad Hosein Zadeh-Posti - َAisan Rafiei - Nima Jamshidi
Examination and Analysis of the Influence of Near-Infrared Light Absorption by Hair Melanin on fNIRS Signal
Elmira Baghaeifar - Sina Shamekhi
کاربرد رویکرد بازیابی اطلاعات در تحلیل داده های بیماران دیابتی
زهرا محمدی فرد چینی بلاغ
مروری بر روشهای هوشمند تشخیص نفوذ در اینترنت اشیاء با تأکید بر یادگیری ماشین و الگوریتمهای بهینهسازی
رضا کهن - حمید براتی - علی براتی
مروری برمفاهیم دانش هیئت مدیره و فرآیندهای داخلی هیئت مدیره در حاکمیت شرکتی
زهرا سلیمانی زاده - زهره عارف منش
تحلیل پارامترهای کلیدی مؤثر در شکست پچ چسبنده ترمیمی تاندون روتاتورکاف با مدلسازی اجزای محدود
شقایق راست قلم - آزاده قوچانی - محسن صراف بید آباد
یادگیری عمیق برای ادراک رباتیک مقاوم در محیط های غیرساختارمند
سجاد یوسفی - مریم پورنجف - سمیرا حسینی - سوسن نصرتی - سمیه باقری
A Quantitative Approach to Assess Rhus coriaria Nanophytosomes in Ketamine-Induced Liver Injury
Narjes Amin - Akbar Hajizadeh Moghadam - Amin Mohammad Mohammadi - Kimia Mozahheb Yousefi - Fereshteh Mir Mohammadrezaei - Sedigheh Khanjani Jelodar
Comparative Evaluation of Two Keratin Extraction Methods from Kurdish Sheep Wool and Their Application in the Fabrication of Biocompatible Hydrogels with Gelation Time Analysis
Sajjad Pourabdal Nergi - Fatemeh Bagheri - Abbas Sheikh
Numerical investigation of the effectiveness of cryosurgery on a liver tumor
Taha Samiazar - Mahkame Sharbatdar
more
Samin Hamayesh - Version 42.5.2