■已经表明,短期摄入胶原蛋白肽可改善与运动引起的肌肉损伤后的肌肉恢复相关的标志物。本研究的目的是研究长期的特异性胶原蛋白肽(SCP)补充剂与训练干预相结合是否以及在多大程度上影响偏心运动引起的肌肉损伤后的恢复标志物。
■55名主要久坐的男性参与者被分配消耗15克SCP或安慰剂(PLA),并进行并行训练(CT)干预(阻力和耐力训练各30分钟,3x/周),持续12周。干预前(T1)和干预后(T2),偏心肌肉损伤是由150个下降跳跃引起的。最大自愿收缩(MVC)的测量,力发展率(RFD),峰值RFD,反运动跳跃高度(CMJ),运动前确定肌肉酸痛(MS),锻炼后立即,运动后24小时和48小时。此外,身体成分,包括脂肪量(FM),无脂质量(FFM),在12周干预期之前和之后,均在休息时确定了体细胞质量(BCM)和细胞外质量(ECM)。
■三因素混合方差分析显示出有利于SCP组的显著交互作用。MVC(p=0.02,ηp2=0.11),RFD(p<0.01,ηp2=0.18),峰值RFD(p<0.01,ηp2=0.15),在SCP组中,CMJ高度(p=0.046,ηp2=0.06)的恢复速度明显更快。对肌肉酸痛(p=0.66)和身体成分(FM:p=0.41,FFM:p=0.56,BCM:p=0.79,ECM:p=0.58)没有发现影响。
■总之,结果表明,结合特定的胶原蛋白肽补充(SCP)和并行训练(CT)在12周期间显着改善反映恢复的标志物,特别是在最大值,爆炸性,和反应强度。假设胶原蛋白肽的长期摄入可以通过促进细胞外基质的重塑来支持肌肉适应。这个,反过来,可以增强爆炸力的产生。
■ClinicalTrials.gov,标识符ID:NCT05220371。
UNASSIGNED: It has been shown that short-term ingestion of collagen peptides improves markers related to muscular recovery following exercise-induced muscle damage. The objective of the present study was to investigate whether and to what extent a longer-term specific collagen peptide (SCP) supplementation combined with a training intervention influences recovery markers following eccentric exercise-induced muscle damage.
UNASSIGNED: Fifty-five predominantly sedentary male participants were assigned to consume either 15 g SCP or placebo (PLA) and engage in a concurrent training (CT) intervention (30 min each of resistance and endurance training, 3x/week) for 12 weeks. Before (T1) and after the intervention (T2), eccentric muscle damage was induced by 150 drop jumps. Measurements of maximum voluntary contraction (MVC), rate of force development (RFD), peak RFD, countermovement jump height (CMJ), and muscle soreness (MS) were determined pre-exercise, immediately after exercise, and 24 and 48 h post-exercise. In addition, body composition, including fat mass (FM), fat-free mass (FFM), body cell mass (BCM) and extracellular mass (ECM) were determined at rest both before and after the 12-week intervention period.
UNASSIGNED: Three-way mixed ANOVA showed significant interaction effects in favor of the SCP group. MVC (p = 0.02, ηp2 = 0.11), RFD (p < 0.01, ηp2 = 0.18), peak RFD (p < 0.01, ηp2 = 0.15), and CMJ height (p = 0.046, ηp2 = 0.06) recovered significantly faster in the SCP group. No effects were found for muscle soreness (p = 0.66) and body composition (FM: p = 0.41, FFM: p = 0.56, BCM: p = 0.79, ECM: p = 0.58).
UNASSIGNED: In summary, the results show that combining specific collagen peptide supplementation (SCP) and concurrent training (CT) over a 12-week period significantly improved markers reflecting recovery, specifically in maximal, explosive, and reactive strength. It is hypothesized that prolonged intake of collagen peptides may support muscular adaptations by facilitating remodeling of the extracellular matrix. This, in turn, could enhance the generation of explosive force.
UNASSIGNED: ClinicalTrials.gov, identifier ID: NCT05220371.