THE EFFECT OF FITNESS TRAINING ON STRIDE LENGTH AND HIP JOINT ANGLE IN OBESE INDIVIDUALS: A KINEMATIC ANALYSIS

Abstract

Introduction: Obesity is a prevalent health concern globally, affecting biomechanics and
movement efficiency. Individuals with obesity often exhibit altered gait patterns, leading to a
shorter stride length and restricted joint mobility. Addressing these biomechanical deficiencies
through structured fitness interventions is crucial in enhancing mobility and reducing
musculoskeletal stress. This study explores the impact of a six-week physical fitness training
program on stride length and hip joint angle in obese individuals.
Design and Methodology: A total of 200 male and female obese participants, aged 35-45 years,
were selected through random sampling from Chhattisgarh, India. The participants underwent a
six-week structured training program that included endurance, strength, speed, plyometric, and
circuit training exercises. Walking trials were recorded using high-speed video analysis, and
kinematic variables such as stride length and hip joint angle were analyzed pre- and post-training
using KINOVEA software.
Statistical Analysis: Data were analyzed using ANOVA at a 0.05 level of significance. The
analysis revealed a statistically significant improvement (p < 0.01) in both stride length and hip
joint angle post-training. The mean stride length increased from 75.3 cm to 85.6 cm, while the
hip joint angle improved from 32.5° to 38.2°, demonstrating enhanced mobility and movement
efficiency in participants.

Conclusion: The results indicate that a well-structured fitness training regimen significantly
enhances gait mechanics in obese individuals. The observed improvements in stride length and
hip joint angle suggest better locomotion efficiency and reduced movement restrictions,
potentially lowering the risk of joint-related disorders. This study underscores the necessity of
incorporating biomechanical assessments and structured exercise programs into obesity
management strategies. Future research should focus on long-term sustainability and additional
training modalities to further optimize gait mechanics in obese individuals.