Isokinetic testing in return-to-sport decisions provides objective strength symmetry data at controlled speeds. Which is a limitation?

• A. It has unlimited availability
• B. It is inexpensive
• C. Its clinical relevance may be limited
• D. It directly measures endurance

Answer: (C)

Isokinetic testing provides objective torque data at controlled speeds, which is helpful for comparing strength between limbs and tracking recovery. However, the main limitation is that these lab-based results may not translate well to real sports performance or readiness to return to sport. Sport movements are dynamic, multi-planar, and demand endurance, power, coordination, and neuromuscular control under fatigue—factors that a single isokinetic test at fixed speeds doesn’t fully capture. Because of this gap between isolated strength measurements and actual athletic demands, the clinical relevance of isokinetic data for return-to-sport decisions can be limited. Clinicians typically use it in conjunction with functional performance tests and sport-specific assessments to form a more complete RTS judgment.