The Muscle Mag
The impact of ingesting either 15g of PeptEndure, Gelita’s specific collagen peptide (SCP) launched earlier this year, or a placebo was assessed in a double-blind, placebo-controlled, randomised trial conducted over 12 weeks of concurrent training with 32 endurance-trained male participants.
The study, which received partial funding from Gelita Health GmbH, Eberbach, Germany, concluded that SCP supplementation in combination with concurrent training (CT) improved indicators of endurance capacity. The authors stated that daily supplementation with SCP could enhance the adaptions of a CT program, which are typically lower compared to isolated endurance or strength training due to the interference effect.
Updating research
Resistance training and aerobic training have different beneficial effects on muscular and cardiovascular systems, however, CT can result in lower metabolic, strength, and muscle hypertrophy adaptations than endurance or resistance training alone. The authors suggest that protein supplementation could help mitigate the interference effect of endurance training on muscle hypertrophy.
Unlike protein supplements rich in the essential amino acid leucine, SCP has a distinctive amino acid profile with lower levels of essential amino acids but high concentrations of glycine, hydroxyproline, and proline, comparable to the presence in collagen, the most abundant protein within the musculoskeletal system and principle component of the extracellular matrix.
Martin Walter, category manager at Gelita, explained the significance of PeptEndure in the sports nutrition space by highlighting the increase in endurance performance observed in the study participants. Additional running distance was achieved in a one-hour time trial, showcasing the potential benefits of SCP supplementation.
The study found that 12 weeks of PeptEndure supplementation led to a significant increase in endurance performance in all female participants. Results showed a greater running distance in a one-hour time trial for the PeptEndure group compared to the control group.
The trial recruited participants to perform 12 weeks of concurrent training while ingesting either 15g of SCP or placebo daily. Running endurance performance, velocity at the lactate threshold, and body composition were measured before and after the intervention.
Results indicated a higher increase in running distance, velocity at the lactate threshold, and improvement in the individual anaerobic threshold in the treatment group compared to the control group. The authors suggested that the results could be due to improved aerobic capacity or structural adaptations within the musculotendinous structures.
Journal: Sports Medicine – Open
“Effects of Specific Bioactive Collagen Peptides in Combination with Concurrent Training on Running Performance and Indicators of Endurance Capacity in Men: A Randomized Controlled Trial.”
Authors: Simon Jerger, Patrick Jendricke, Christoph Centner, Kevin Bischof, Jan Kohl, Simon Keller, Albert Gollhofer, and Daniel König.
