Multiscale hamstring muscle adaptations following 9 weeks of eccentric training - PubMed
12 hours ago
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- #hamstring
- #muscle adaptation
- Nine weeks of Nordic hamstring exercise (NHE) training led to significant adaptations in the biceps femoris long-head (BFlh) muscle.
- Fascicle length increased by 19% in the central region and 33% in the distal region of the BFlh muscle.
- Serial sarcomere number increased by 25% in the central region and 49% in the distal region.
- BFlh muscle volume increased by 8%, and knee flexion strength increased by 40% after training.
- Three weeks of detraining resulted in reductions in fascicle length (12% central, 16% distal) and serial sarcomere number.
- The study provides direct evidence that increased fascicle length is due to the addition of sarcomeres in series.