Correlation between hip muscle strength and the lower quarter Y-balance test in athletes following anterior cruciate ligament reconstruction.

INTRODUCTION: The lower quarter Y-balance test (YBT-LQ), which measures dynamic postural control, has been reported to be predictive of lower limb injuries in athletes. It requires subjects to control their body while maintaining a single-leg stance, which necessitates sufficient strength of the hip muscles to maintain stability. The purpose of the study was to investigate the correlation between the performance of the YBT-LQ and the hip abductor or extensor muscle strength in athletes following anterior cruciate ligament reconstruction surgery (ACLR). METHODS: Fifteen athletes with post-ACLR participated in this cross-sectional study. The participants completed the YBT-LQ, followed by isokinetic measurement of the hip abductor and extensor muscles of both the legs. The peak and average torque of the hip abductor and extensor muscles were tallied with the composite score of the YBT-LQ for each limb. RESULTS: No correlation was found between the strength of the hip muscles and the YBT-LQ composite score in both injured and non-injured limbs at all velocities except for the eccentric hip abductor and concentric hip extensor torques. The eccentric hip abductor average torque is strongly associated with the YBT-LQ (r = 0.663, p = 0.010) at a speed of 180°/s. The concentric hip extensor peak torque was weakly correlated with balance (r = 0.540, p = 0.046) at a speed of 180°/s. CONCLUSION: Our study demonstrated a positive correlation between the YBT-LQ and eccentric hip abduction and concentric hip extension at higher velocities. This shows the importance of implementing velocity-oriented rehabilitation in an athletic population following ACLR.

Effectiveness of home-based physiotherapy on pain and disability in participants with osteoarthritis of knee: an observational study.

[Purpose] The objective of this observational study was to examine the effect of home physiotherapy on pain and disability in participants with knee osteoarthritis. [Participants and Methods] From January 2017 to December 2017, 139 participants who were recipients of HealthCare atHome physiotherapy services across various locations were included in the main analysis. The mean treatment cycle duration was 31.5 days (mean number of sessions delivered, 19.7). Physiotherapy was performed for approximately 45-50 min in the form of electrotherapy, exercise therapy, and manual therapy. Visual analog scale (VAS) scores were documented after each visit, whereas The Western Ontario and Mcmaster Universities Osteoarthritis Index (WOMAC) as an outcome were recorded weekly. [Results] Statistically significant improvement in the visual analog scale and Western Ontario and Mcmaster Universities Osteoarthritis Index scores were observed, with overall % improvement of 52% and 43%, respectively. [Conclusion] The average scores in pain and disability were reduced after home based physiotherapy.