Intermittent Sequential Pneumatic Compression (ISPC) has gained traction as a recovery modality among athletes, particularly in high-performance cycling. However, its effectiveness in this context remains a topic of investigation. This study aimed to evaluate the impact of a 30-minute high-pressure ISPC intervention compared to a sham condition on various recovery markers in trained cyclists following a strenuous 30-minute all-out time trial on a stationary trainer.
The trial involved 21 male participants, with an average age of 22.8 years. The recovery protocol sequence was randomly assigned to each participant, ensuring a robust crossover design. The researchers measured several outcomes, including isometric knee extension, cycling performance during a 4-minute time trial, quadriceps low-frequency fatigue, creatine kinase levels, and subjective assessments of fatigue, recovery, and muscle soreness at baseline, 1 hour post-intervention, and at 24 and 48 hours.
Results Overview
The findings indicated that ISPC provided benefits in subjective perceptions of recovery, muscle soreness, and fatigue. Additionally, improvements were noted in low-frequency fatigue scores and maximal voluntary contraction of knee extension, with statistical significance (P < .05). However, these positive effects did not translate into enhanced performance in subsequent time trials conducted 24 hours later, as indicated by a P-value of .18. Furthermore, no significant increase in creatine kinase activity was observed following the fatigue protocol.
In conclusion, while ISPC appears to enhance acute subjective and neuromuscular recovery markers following a strenuous time trial, it does not confer a performance advantage in short-duration cycling efforts 24 hours later. Nonetheless, the use of ISPC may still be justifiable for accelerating perceptual and neuromuscular recovery in high-level cyclists.
What this study does not show
This study does not demonstrate that ISPC improves actual cycling performance in trained athletes, as performance metrics did not show significant enhancement post-intervention.
Evidence scorecard
- Analytic validity: established
- Clinical validity: established
- Clinical utility: partial
The evidence class is human_rct, indicating a randomized controlled trial involving human participants.