Trial reportSports health
Effects of Static and Dynamic Stretching With Strengthening Exercises in Patients With Patellofemoral Pain Who Have Inflexible Hamstrings: A Randomized Controlled Trial.
Trial report in Sports health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05261100 (Effects of Routine Physical Therapy With and Without Core Stability Exercises in Patients With Patellofemoral Pain Syndrome -a Randomized Controlled Trial), which is not on this map. Cited by 19 papers, 3 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.
Effects of Routine Physical Therapy With and Without Core Stability Exercises in Patients With Patellofemoral Pain Syndrome -a Randomized Controlled Trial
Who cites it
19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 43 citations in OpenAlex.
- A Systematic Review with Meta-analysis of the Association between Changes in Muscle Strength and Clinical Outcome Changes in Patellofemoral Pain.Sports medicine (Auckland, N.Z.) · 2026Pooled it
- Knee extensor training in patients with patellofemoral pain: a systematic review and synthesis.Frontiers in rehabilitation sciences · 2025Pooled it
- There is more to the knee joint than just the quadriceps: A systematic review with meta-analysis and evidence gap map of hamstring strength, flexibility, and morphology in individuals with gradual-onset knee disorders.Journal of sport and health science · 2024Pooled it
- Effects of foot core training combined with hip and knee strengthening on patients with patellofemoral pain: a randomized controlled trial.BMC musculoskeletal disorders · 2026Trial
- Low-Intensity Blood Flow-Restricted Multi-Joint Exercise Improves Muscle Function in Patients With Patellofemoral Pain Syndrome: A Randomized Trial.Medical science monitor : international medical journal of experimental and clinical research · 2026Trial
- Effects of functional strength training on pain, function, and lower extremity biomechanics in patients with patellofemoral pain syndrome: a randomized clinical trial.Journal of orthopaedic surgery and research · 2025Trial
- Home-based exercise program and Health education in patients with patellofemoral pain: a randomized controlled trial.BMC musculoskeletal disorders · 2023Trial
- Dry needling on latent and active myofascial trigger points versus oral diclofenac in patients with knee osteoarthritis: a randomized controlled trial.BMC musculoskeletal disorders · 2023Trial
- Trial
- Optimizing Athletic Performance with Neural Mobilization: A Comparative Study in Soccer Players.International journal of exercise science · 2026Article
- Injury, Risk and Training Habits Among Dog Agility Handlers: A Cross-Sectional Study.Journal of functional morphology and kinesiology · 2025Article
- The effects of 8 weeks of dynamic hamstring stretching or nordic hamstring exercises on balance, range of motion, agility, and muscle performance among male soccer players with hamstring shortness: a randomized controlled trial.BMC sports science, medicine & rehabilitation · 2025Article
- Addition of anterolateral ligament reconstruction to primary anterior cruciate ligament reconstruction could benefit recovery of functional outcomes.Scientific reports · 2024Article
- Association between quadriceps fat pad edema and patellofemoral osteoarthritis: a quantitative Q-Dixon-based magnetic resonance imaging (MRI) analysis.Quantitative imaging in medicine and surgery · 2024Article
- Acute Effect of Four Stretching Protocols on Change of Direction in U-17 Male Soccer Players.Sports (Basel, Switzerland) · 2023Article
- Dynamic and static stretching on hamstring flexibility and stiffness: A systematic review and meta-analysis.Heliyon · 2023Article
- Effect of Adding Kinesio Taping to Exercise Therapy in the Treatment of Patellofemoral Pain Syndrome.Medicina (Kaunas, Lithuania) · 2023Article
- Comparison of Functional Outcomes between Supervised Rehabilitation and Telerehabilitation in Female Patients with Patellofemoral Pain Syndrome during the COVID-19 Pandemic.International journal of environmental research and public health · 2023Article
- Growth Spurts and Athletic Training.Sports healthArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPatellofemoral pain (PFP) syndrome is closely associated with muscle tightness. However, studies regarding the effects of stretching exercises on PFP patients with inflexible hamstrings are scarce. The aim of the study was to compare the effects between static and dynamic hamstring stretching in patients with PFP who have inflexible hamstrings. HYPOTHESIS: Compared with static hamstring stretching, dynamic hamstring stretching will improve the parameters of hamstring flexibility, knee muscle strength, muscle activation time, and clinical outcomes in this patient population. STUDY
designProspective randomized controlled trial. LEVEL OF EVIDENCE: Level 2.
methodsA total of 46 patients (25, static stretching; 21, dynamic stretching) participated. Hamstring flexibility was assessed according to the popliteal angle during active knee extension. Muscle strength and muscle activation time were measured using an isokinetic device. Clinical outcomes were evaluated using the visual analog scale (VAS) for pain and the anterior knee pain scale (AKPS).
resultsThere were no differences in hamstring flexibility and knee muscle strength of the affected knees between the groups (
conclusionIn patients with PFP who have inflexible hamstrings, dynamic hamstring stretching with strengthening exercises was superior for improving muscle activation time and clinical outcomes compared with static hamstring stretching with strengthening exercises. CLINICAL RELEVANCE: Clinicians and therapists could implement dynamic hamstring stretching to improve function and reduce pain in patients with PFP who have inflexible hamstrings.
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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.