Comparative Analysis of Functional Limb Length Discrepancy, Aerobic Fitness, Hip Muscle Imbalance, Balance, and Pelvic Tilt in Professional Versus Recreational Athletes.

Introduction: Functional limb length discrepancy (LLD) can negatively impact athletic performance by altering biomechanics and balance. This study aimed to compare hip muscle strength, flexibility, and balance between professional and recreational athletes with functional LLD. Methodology: A comparative experimental study was conducted involving 30 athletes with functional LLD—15 professional athletes from Maharana Pratap Sports College, Raipur, Dehradun (mean age 15 ± 1.13 years), and 15 recreational athletes from Guru Nanak College hostel, Jhajra, Dehradun (mean age 19.73 ± 1.22 years). Purposive sampling was used to divide participants into two groups. Assessment tools included inch tape for limb length and reach, digital inclinometer for pelvic tilt, strain gauge for muscle strength, BESS and SEBT for balance, and a 20-meter shuttle test for VO₂ max. Results: Preliminary findings indicated that professional athletes demonstrated greater hip muscle strength, better balance (as measured by BESS and SEBT), and superior flexibility compared to recreational athletes. Additionally, professional athletes showed better endurance on the 20-meter shuttle test. Discussion: The results suggest that higher training intensity and routine in professional athletes may contribute to better neuromuscular control and muscle conditioning, thereby reducing the functional impact of LLD. The improved balance and strength may help compensate for biomechanical asymmetries associated with LLD. Conclusion: Professional athletes with functional limb length discrepancy exhibit superior hip muscle strength, balance, and flexibility compared to recreational athletes. These findings emphasize the importance of targeted training in mitigating the effects of functional LLD in athletic populations.