Specific collagen peptides increase adaptions of patellar tendon morphology following 14-weeks of high-load resistance training: A randomized-controlled trial.
Study Goal
The researchers aimed to determine whether supplementation with specific collagen peptides enhances patellar tendon hypertrophy and related outcomes during high-load resistance training compared to placebo.
Results Summary
The study found that 5g daily collagen peptide supplementation during 14 weeks of resistance training increased patellar tendon cross-sectional area (CSA) more than training alone, particularly in proximal and medial tendon sites. Training improved tendon stiffness, rectus femoris CSA, and knee extension strength, but these effects were independent of supplementation.
Population
Individuals undergoing high-load resistance training (specific population details not provided).
Effective Dosage
5g daily
Duration
14 weeks
Interactions
None mentioned
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
daily supplementation of 5 g of specific collagen peptides during 14 weeks of high-load resistance training | increase | patellar tendon hypertrophy | - | - | increase | #1 |
daily supplementation of 5 g of specific collagen peptides | increase | resistance training-induced CSA increase | - | - | uniformly potentiated | #2 |
high-load resistance training | increase | patellar tendon stiffness | - | - | increase | #3 |
high-load resistance training | increase | CSA of the rectus femoris muscle | - | - | increase | #4 |
high-load resistance training | increase | maximal voluntary knee extension strength | - | - | increase | #5 |
supplementation with specific collagen peptides | increase | collagen synthesis | - | - | stimulating effect | #6 |
Increased tendon CSA as a result of a stimulating effect of the supplementation with specific collagen peptides on collagen synthesis | decrease | tendon stress | - | - | decrease | #7 |
Increased tendon CSA as a result of a stimulating effect of the supplementation with specific collagen peptides on collagen synthesis | increase | tendon healing | - | - | support | #8 |
A daily supplementation of 5 g of specific collagen peptides during 14 weeks of high-load resistance training increase patellar tendon hypertrophy compared to the same training regimen and placebo.The resistance training-induced CSA increase, which was most pronounced on proximal and medial patellar tendon sites, is uniformly potentiated along the entire tendon length by supplementation.Patellar tendon stiffness, CSA of the rectus femoris muscle and maximal voluntary knee extension strength increase due to training independently from supplementation.Increased tendon CSA as a result of a stimulating effect of the supplementation with specific collagen peptides on collagen synthesis might be able to decrease tendon stress and support tendon healing.