The Effects of Long Muscle Length Isometric versus Full Range of Motion Isotonic Training on Regional Quadriceps Femoris Hypertrophy in Resistance-Trained Individuals.
Discover the surprising effects of isometric vs. isotonic training on quadriceps muscle growth. Isometric training at long lengths may boost proximal thigh hypertrophy, but more research is needed to confirm this intriguing finding.
This study compared the effects of isometric training at long muscle lengths (ISOM) versus full range of motion isotonic training (ISOT) on regional quadriceps femoris hypertrophy in 23 resistance-trained individuals. Using Bayesian analysis, the researchers found similar overall quadriceps growth between the two conditions. However, ISOM may have a slight edge in boosting proximal anterior thigh muscle thickness, though the results are inconclusive. The study's within-subject design and advanced statistical approach provide valuable insights, but further research is needed to clarify the nuanced effects of these training modalities on specific muscle regions.