Brief summary, from the abstract
In people recovering from ACL reconstruction, how many repetitions you can do on the one-leg rise test does track with quadriceps strength, making it a useful no-equipment way to gauge strength recovery. The link is non-linear, with the test telling you less at high repetition counts.
- Cross-sectional study of 100 participants (50 female, 50 male), aged 18 to 40 years, tested 9 to 36 months after ACL reconstruction.
- One-leg rise repetitions showed an increasing but non-linear association with quadriceps strength, with diminishing returns at higher repetition counts.
- On the reconstructed limb the relationship was modest to moderate (per-repetition slope beta = 0.15, 95% CI 0.10 to 0.20; adjusted r-squared = 0.51); on the other limb beta = 0.14 (95% CI 0.08 to 0.19; r-squared = 0.42).
- This is a single cross-sectional study, and the authors note that other factors such as motivation and endurance likely influence performance at higher repetition counts.
Clinically assessing this area? See the knee special tests.