ArticlePloS one2019
Reliability of a portable device for quantifying tone and stiffness of quadriceps femoris and patellar tendon at different knee flexion angles.
Article in PloS one, 2019. 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 57 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.
Detection of the Ileotibial Band Tension Through Direct Palpation: a Reliability Assessment Study
Effects of Myofascial Reorganization on Running Performance, and Lower Limb Biomechanical, Viscoelastic, and Thermographic Properties of Triathletes: a Randomized Clinical Trial.
Who cites it
57 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Evaluating the Reliability of MyotonPro in Assessing Muscle Properties: A Systematic Review of Diagnostic Test Accuracy.Medicina (Kaunas, Lithuania) · 2024Pooled it
- Validity and reliability of myotonometry for assessing muscle viscoelastic properties in patients with stroke: a systematic review and meta-analysis.Scientific reports · 2021Pooled it
- Acute Impact of Cold Compression Therapy Across Diverse Age Groups and Physical Conditioning Status: A Randomized Crossover Study.Journal of sports science & medicine · 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
- Acute effects of cold, heat and contrast pressure therapy on forearm muscles regeneration in combat sports athletes: a randomized clinical trial.Scientific reports · 2024Trial
- Acute Effects of the Dry Needling Session on Gastrocnemius Muscle Biomechanical Properties, and Perfusion with Latent Trigger Points - A Single-Blind Randomized Controlled Trial in Mixed Martial Arts Athletes.Journal of sports science & medicine · 2024Trial
- Effect of osteopathic techniques on human resting muscle tone in healthy subjects using myotonometry: a factorial randomized trial.Scientific reports · 2022Trial
- Objective Assessment of Regional Stiffness in Achilles Tendon in Different Ankle Joint Positions Using the MyotonPRO.Medical science monitor : international medical journal of experimental and clinical research · 2020Trial
- Portable Upper-limb Muscle Tone Assessment by Integrating Multi-sensor Signals.Annals of biomedical engineering · 2026Article
- Associations Between Lower Extremity Myotonic Properties, Strength, and Balance in American Football Players: An Exploratory LASSO-Based Study.Journal of clinical medicine · 2026Article
- Intra- and inter-session reliability of the MyotonPro in measuring the biomechanical and viscoelastic properties of the knee extensor and flexor muscles.BMC sports science, medicine & rehabilitation · 2026Article
- Soft Tissue Stiffness and Functional Knee Outcomes in Female Handball Players Following a Knee Injury: A Cross-Sectional Study.Journal of clinical medicine · 2026Article
- Development of a multi-point mapping protocol for myotonometric assessment: a methodological pilot study.Scientific reports · 2026Article
- Radial extracorporeal shock wave therapy modulates hamstring stiffness and flexibility in young males with hamstring tightness: a randomized controlled trial.Frontiers in physiology · 2026Article
- Reliability of DIERS pedogait system for evaluating spatiotemporal gait parameters in knee osteoarthritis and its association with Achilles tendon stiffness asymmetry.Frontiers in physiology · 2026Article
- Inter- and Intra-Rater Reliability of Myotonometric Assessment of the Mechanical Properties of Caesarean Section Scar Skin Using the MyotonPRO With an L-Shaped Probe.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2026Article
- Review of Methods for Evaluating Changes in the Tension and Properties of the Gluteus Medius Muscle (GMED) and the Tensor Fascia Latae (TFL) as a Result of Hip Osteoarthritis (HOA) and After Total Hip Arthroplasty (THA)-Could MyotonPRO Assessment Be the New Standard?Journal of clinical medicine · 2025Review
- Forearm rotation and elbow angle differentially modulate biceps brachii and brachioradialis muscle stiffness and EMG activity during low-load isometric contractions: a cross-sectional study in healthy individuals.BMC sports science, medicine & rehabilitation · 2025Article
- Treatment of Ochronotic Osteoarthropathy and the Evaluation of Selected Lower Limb Muscle Properties, Including the Patellar Tendon: A Case Report and Mini Literature Review.Journal of clinical medicine · 2025Article
- Is the FIFA 11+ Warm-Up Effective for Inducing Acute Knee Adaptations in Recreational Soccer Players?Journal of functional morphology and kinesiology · 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
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The reliability of MyotonPRO that can monitor the mechanical properties of tissues is still unclear. This study aimed to analyze the within-day inter-operator and between-day intra-operator reliability of MyotonPRO for assessing tone and stiffness of quadriceps femoris and patellar tendon at different knee angles. The tone and stiffness of healthy participants (15 males and 15 females, aged 24.7±1.6 years) in the supine and resting position were measured using the MyotonPRO device. The measurements were quantified at 0°, 30°, 60°, and 90° of knee flexion. The intraclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable change (MDC) were calculated and a Bland-Altman analysis was conducted to estimate reliability. The results indicated excellent inter-operator reliability (ICC > 0.78) and good to excellent intra-operator reliability (ICC > 0.41). The inter-operator SEM measurements ranged between 0.1-0.9 Hz and 3.8-37.9 N/m, and intra-operator SEM ranged between 0.5-1.3 Hz and 7.9-52.0 N/m. The inter-operator MDC ranged between 0.3-2.5 Hz and 10.5-105.1 N/m, and intra-operator SEM ranged between 1.1-3.3 Hz and 21.9-144.1 N/m. The agreement of inter-operator was better than that of intra-operator. The study concluded that MyotonPRO is a reliable device to detect the tone and stiffness of quadriceps femoris and patellar tendon.
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.