Trial reportNutrients2019
Oral Supplementation of Specific Collagen Peptides Combined with Calf-Strengthening Exercises Enhances Function and Reduces Pain in Achilles Tendinopathy Patients.
Trial report in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 4 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
45 citing papers in PubMed, 4 syntheses or guidelines pooled it, 67 citations in OpenAlex.
- Effects of protein supplementation on body composition, physiological adaptations, and performance during endurance training: a systematic review and meta-analysis.Frontiers in nutrition · 2025Pooled it
- Exercise therapy for tendinopathy: a mixed-methods evidence synthesis exploring feasibility, acceptability and effectiveness.Health technology assessment (Winchester, England) · 2023Pooled it
- The impact of nutrition on tendon health and tendinopathy: a systematic review.Journal of the International Society of Sports Nutrition · 2022Pooled it
- The effects of collagen peptide supplementation on body composition, collagen synthesis, and recovery from joint injury and exercise: a systematic review.Amino acids · 2021Pooled it
- Can the Effects of Exercise Therapy on Achilles Tendinopathy Be Enhanced by Adding Nutritional Advice-A Randomized Controlled Pilot Study.Nutrients · 2026Trial
- The effects of collagen peptide supplementation on appetite and post-exercise energy intake in females: a randomised controlled trial.The British journal of nutrition · 2025Trial
- Collagen peptide supplementation before bedtime reduces sleep fragmentation and improves cognitive function in physically active males with sleep complaints.European journal of nutrition · 2024Trial
- Collagen peptides supplementation improves function, pain, and physical and mental outcomes in active adults.Journal of the International Society of Sports Nutrition · 2023Trial
- The effect of specific bioactive collagen peptides on function and muscle remodeling during human resistance training.Acta physiologica (Oxford, England) · 2023Trial
- The Influence of Specific Bioactive Collagen Peptides on Body Composition and Muscle Strength in Middle-Aged, Untrained Men: A Randomized Controlled Trial.International journal of environmental research and public health · 2021Trial
- The Influence of Specific Bioactive Collagen Peptides on Knee Joint Discomfort in Young Physically Active Adults: A Randomized Controlled Trial.Nutrients · 2021Trial
- Prolonged Collagen Peptide Supplementation and Resistance Exercise Training Affects Body Composition in Recreationally Active Men.Nutrients · 2019Trial
- Enzymatic Hydrolysis of a Collagen Hydrolysate Enhances Postprandial Absorption Rate-A Randomized Controlled Trial.Nutrients · 2019Trial
- Ultrasound-Guided Collagen Peptides Injections Combined with Focused Extracorporeal Shockwave Therapy and Therapeutic Exercise in Chronic Partial Common Extensor Tendon Tears at Elbow Lateral Epicondyle: A Retrospective Case Series.Life (Basel, Switzerland) · 2026Article
- Rehabilitation Nutrition for Tendon and Ligament Injuries: From Collagen Remodeling to Return-to-Activity and Sport.Healthcare (Basel, Switzerland) · 2026Review
- Clinical evidence for low-molecular-weight collagen peptides in tendon and ligament tears: a systematic review with narrative synthesis.Frontiers in medicine · 2026Review
- The role of biotics and bioactive compounds in sports injuries: a narrative review.Frontiers in nutrition · 2026Review
- Specific collagen peptides supplementation increases collagen type I content in skeletal muscle after 12 weeks of high-load resistance training: a randomized controlled trial.Frontiers in physiology · 2026Article
- Porcine Collagen Injection Therapy Affects Proximal Hamstring Tendinopathy in Athletes by Reducing Time to Return to Sport.Sports (Basel, Switzerland) · 2025Article
- Effects of a Food Supplement Containing Hydrolyzed Collagen on Pain Perception, Joint Range, and Quality of Life in People with Chronic Knee Pain.Diseases (Basel, Switzerland) · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
The current pilot study investigates whether oral supplementation of specific collagen peptides improves symptoms and tendon vascularisation in patients with chronic mid-portion Achilles tendinopathy in combination with structured exercise. Participants were given a placebo or specific collagen peptides (TENDOFORTE
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.