Trial reportSports health
Static and Dynamic Quadriceps Stretching Exercises in Patients With Patellofemoral Pain: 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 2 registered trials, which are not on this map. Cited by 7 papers, 2 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.
Comparative Effects of Rebound Training and Theraband Resistance Exercise on Agility, Power and Dynamic Balance in Badminton Players With Patellofemoral Pain Syndrome
Comparative Effects of Plyometric Training and Theraband Resistant Exercises on Agility, Power and Dynamic Balance in Karate Players With Patello Femoral Pain Syndrome
Who cites it
7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 18 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
- Stretch-mediated hypertrophy and strength increases and their impact on dynamic balance performance - a randomized controlled intervention study.Scientific reports · 2026Trial
- 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
- Comparison of Active Knee Flexion Angles With and Without Tibiofemoral Joint Rotation Control Between Individuals With and Without Patellofemoral Pain Syndrome.Medical science monitor : international medical journal of experimental and clinical research · 2026Article
- 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
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
backgroundLimited data are available on the effect of stretching exercise in patients with patellofemoral pain (PFP) who have inflexible quadriceps, which is one of the various causes of PFP syndrome. This study compares quadriceps flexibility, strength, muscle activation time, and patient-reported outcomes after static and dynamic quadriceps stretching exercises in patients with PFP who had inflexible quadriceps. HYPOTHESIS: Quadriceps flexibility and strength, muscle activation time, and patient-reported outcomes would improve with dynamic quadriceps stretching as compared with static quadriceps stretching exercises. STUDY
designRandomized controlled trial. LEVEL OF EVIDENCE: Level 2.
methodsOf the 44 patients included in the study, 20 performed static stretching and 24 performed dynamic stretching. Quadriceps flexibility was assessed by measuring the knee flexion angle during knee flexion in the prone position (the Ely test). Muscle strength and muscle activation time were measured using an isokinetic device. The patient-reported outcomes were evaluated using the visual analogue scale for pain and anterior knee pain scale.
resultsNo significant differences in quadriceps flexibility and strength, muscle activation time, and patient-reported outcomes in the involved knees were found between the 2 groups (
conclusionQuadriceps flexibility and strength, muscle activation time, and patient-reported outcomes in patients with PFP who had inflexible quadriceps showed no significant differences between the static and dynamic quadriceps stretching exercise groups. CLINICAL RELEVANCE: Both static and dynamic stretching exercises may be effective for improving pain and function in patients with PFP who have inflexible quadriceps.
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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.