ArticleThe Journal of physiology2005
Coordinated collagen and muscle protein synthesis in human patella tendon and quadriceps muscle after exercise.
Article in The Journal of physiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 251 papers, 7 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Muscular Strength and Aerobic Capacity, a Symbiotic Relationship With Birth Weight and Metabolic Risk of Colombian Scholchildren: Study SIMAC
The Effects of Essential and Non-Essential Amino Acids on Post-Exercise Muscle Collagen Synthesis in Young Men: a Randomized Controlled Trial
Who cites it
251 citing papers in PubMed, 7 syntheses or guidelines pooled it, 594 citations in OpenAlex.
- The effect of resistance training on patients with secondary sarcopenia: a systematic review and meta-analysis.Scientific reports · 2024Pooled it
- The effects of plyometric jump training on lower-limb stiffness in healthy individuals: A meta-analytical comparison.Journal of sport and health science · 2023Pooled it
- Muscle Protein Synthesis Responses Following Aerobic-Based Exercise or High-Intensity Interval Training with or Without Protein Ingestion: A Systematic Review.Sports medicine (Auckland, N.Z.) · 2022Pooled it
- Effects of eccentric exercise in patients with subacromial impingement syndrome: a systematic review and meta-analysis.BMC musculoskeletal disorders · 2019Pooled it
- Chronic Adaptations to Eccentric Training: A Systematic Review.Sports medicine (Auckland, N.Z.) · 2017Pooled it
- Effects of Increased Loading on In Vivo Tendon Properties: A Systematic Review.Medicine and science in sports and exercise · 2015Pooled it
- Proteomics perspectives in rotator cuff research: a systematic review of gene expression and protein composition in human tendinopathy.PloS one · 2015Pooled it
- Impact of gelatin supplementation on indices of skeletal muscle recovery: a pilot study.European journal of applied physiology · 2026Trial
- Extended Restitution Between Sessions Does Not Enhance the Benefits of 12 Weeks Exercise-Based Treatment for Patellar Tendinopathy: A Randomized Controlled Clinical Trial (The TEREX Trial).Scandinavian journal of medicine & science in sports · 2026Trial
- Effects of resistance exercise, collagen ingestion and circulating oestrogen concentration on collagen synthesis in a female athlete: A case report.Experimental physiology · 2025Trial
- High-intensity resistance training and collagen supplementation improve patellar tendon adaptations in professional female soccer athletes.Experimental physiology · 2025Trial
- Investigating the Digestibility, Bioavailability and Utilization of Protein Blends in Older Adults Using a Dual Stable Isotope Tracer Technique.Nutrients · 2025Trial
- Investigation of the effect of different intensity stabilization exercises on core muscle stiffness and pain in chronic low back pain: a single-blind, randomized controlled trial.Rheumatology international · 2025Trial
- Hydrolysed Collagen Supplementation Enhances Patellar Tendon Adaptations to 12 Weeks' Resistance Training in Middle-Aged Men.European journal of sport science · 2025Trial
- Ingestion of a Whey Plus Collagen Protein Blend Increases Myofibrillar and Muscle Connective Protein Synthesis Rates.Medicine and science in sports and exercise · 2025Trial
- The Collagen Synthesis Response to an Acute Bout of Resistance Exercise Is Greater when Ingesting 30 g Hydrolyzed Collagen Compared with 15 g and 0 g in Resistance-Trained Young Men.The Journal of nutrition · 2024Trial
- Effect of the temporal coordination and volume of cyclic mechanical loading on human Achilles tendon adaptation in men.Scientific reports · 2024Trial
- The Effects of Eccentric Contraction Execution Time on the Properties of the Patellar Tendon.International journal of environmental research and public health · 2022Trial
- Early Superimposed NMES Training is Effective to Improve Strength and Function Following ACL Reconstruction with Hamstring Graft regardless of Tendon Regeneration.Journal of sports science & medicine · 2022Trial
- A Retrospective Analysis to Determine Whether Training-Induced Changes in Muscle Thickness Mediate Changes in Muscle Strength.Sports medicine (Auckland, N.Z.) · 2021Trial
191 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 4 institutions in 2 countries.
Funding
Abstract
We hypothesized that an acute bout of strenuous, non-damaging exercise would increase rates of protein synthesis of collagen in tendon and skeletal muscle but these would be less than those of muscle myofibrillar and sarcoplasmic proteins. Two groups (n = 8 and 6) of healthy young men were studied over 72 h after 1 h of one-legged kicking exercise at 67% of maximum workload (W(max)). To label tissue proteins in muscle and tendon primed, constant infusions of [1-(13)C]leucine or [1-(13)C]valine and flooding doses of [(15)N] or [(13)C]proline were given intravenously, with estimation of labelling in target proteins by gas chromatography-mass spectrometry. Patellar tendon and quadriceps biopsies were taken in exercised and rested legs at 6, 24, 42 or 48 and 72 h after exercise. The fractional synthetic rates of all proteins were elevated at 6 h and rose rapidly to peak at 24 h post exercise (tendon collagen (0.077% h(-1)), muscle collagen (0.054% h(-1)), myofibrillar protein (0.121% h(-1)), and sarcoplasmic protein (0.134% h(-1))). The rates decreased toward basal values by 72 h although rates of tendon collagen and myofibrillar protein synthesis remained elevated. There was no tissue damage of muscle visible on histological evaluation. Neither tissue microdialysate nor serum concentrations of IGF-I and IGF binding proteins (IGFBP-3 and IGFBP-4) or procollagen type I N-terminal propeptide changed from resting values. Thus, there is a rapid increase in collagen synthesis after strenuous exercise in human tendon and muscle. The similar time course of changes of protein synthetic rates in different cell types supports the idea of coordinated musculotendinous adaptation.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.