Intermittent Sequential Pneumatic Compression (ISPC) has gained popularity as a recovery modality among athletes, particularly in high-performance sports. This study, published in the International Journal of Sports Physiology and Performance, sought to evaluate the effectiveness of a 30-minute high-pressure ISPC intervention compared to a sham condition on the recovery of trained cyclists following a strenuous time trial.
The randomized controlled trial involved 21 male participants with an average age of 22.8 years. The study utilized a crossover design, meaning each participant experienced both the ISPC and sham conditions in a random order. Recovery measures included isometric knee extension strength, cycling performance during a 4-minute time trial, quadriceps low-frequency fatigue, creatine kinase levels, and subjective assessments of fatigue, recovery, and muscle soreness.
Results indicated that ISPC provided benefits in subjective perceptions of recovery, muscle soreness, and fatigue, along with improvements in low-frequency fatigue scores and maximal voluntary contraction of knee extension. These findings were statistically significant (P < .05). However, despite these subjective and neuromuscular recovery markers showing improvement, the study found no significant performance advantage in subsequent time trials conducted 24 hours later (P = .18). Furthermore, there was no notable increase in creatine kinase activity following the fatigue protocol, suggesting that ISPC may not influence biochemical recovery markers as previously hypothesized.
The conclusion drawn from this study is that while ISPC appears to enhance acute subjective and neuromuscular recovery markers following a strenuous cycling effort, it does not confer a performance advantage in short-duration cycling efforts 24 hours post-intervention. Nevertheless, the use of ISPC may still be justified for its potential to accelerate perceptual and neuromuscular recovery in high-level cyclists.
What this study does not show
This study does not demonstrate that ISPC leads to improved performance outcomes in subsequent cycling trials, despite showing benefits in subjective recovery markers.
Evidence scorecard
- Analytic validity: established
- Clinical validity: established
- Clinical utility: partial
The evidence class is human_rct.