Trial reportPloS one2019
An 8-week resistance training protocol is effective in adapting quadriceps but not patellar tendon shear modulus measured by Shear Wave Elastography.
Trial report in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.
What it found
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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
19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.
- Characterizing Musculoskeletal Tissue Mechanics Based on Shear Wave Propagation: A Systematic Review of Current Methods and Reported Measurements.Annals of biomedical engineering · 2022Pooled it
- The impact of acute and chronic resistance exercise on muscle stiffness: a systematic review and meta-analysis.Journal of ultrasound · 2020Pooled it
- Can Manual Therapy Alter Muscle Stiffness in Patients With Spinal Accessory Nerve Injury?Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2025Trial
- Longitudinal Ultrasound Assessment of Achilles and Patellar Tendon Morphology in National Collegiate Athletic Association Division 1 Female Gymnasts.Journal of functional morphology and kinesiology · 2026Article
- Evaluation of the core muscles of children and adolescents with nocturnal enuresis using shear wave elastography: a preliminary study.Scientific reports · 2025Article
- Patellar tendon adaptations to resistance training in young women using combined oral contraceptives.PeerJ · 2025Article
- Influence of the Knee and Hip Joint Angles on the Knee Extensor Muscles and Tendon Shear Wave Velocity in Men and Prepubertal Boys.Translational sports medicine · 2025Article
- Evaluation of the Mechanical Behavior of the Patellar and Semitendinosus Tendons Using Supersonic Shear-wave Imaging (SSI) Elastography and Tensile Tests.Revista brasileira de ortopedia · 2024Article
- The effects of a 12-week combined motor control exercise and isolated lumbar extension intervention on lumbar multifidus muscle stiffness in individuals with chronic low back pain.Frontiers in physiology · 2024Article
- Acute Effects of Running on Shear Wave Elastography Measures of the Achilles Tendon and Calf Muscles in Professional Female Handball and Volleyball Players.Diagnostics (Basel, Switzerland) · 2023Article
- Effect of Physical Parameters and Training Load on Patellar Tendon Stiffness in Professional Athletes.Diagnostics (Basel, Switzerland) · 2023Article
- MSK Ultrasound - An IJSPT Perspective.International journal of sports physical therapy · 2023Article
- Differences in Medial and Lateral Gastrocnemius Stiffness after Exercise-Induced Muscle Fatigue.International journal of environmental research and public health · 2022Article
- Muscle and Tendon Stiffness of the Lower Limb of Professional Adolescent Soccer Athletes Measured Using Shear Wave Elastography.Diagnostics (Basel, Switzerland) · 2022Article
- Effects of Different Long-Term Exercise Modalities on Tissue Stiffness.Sports medicine - open · 2022Review
- An Examination of Two Resistance Training Frequency Techniques in Morphological and Functional Adaptations of the Patellar Tendon.International journal of exercise science · 2022Article
- Objective Assessment of Regional Stiffness in Vastus Lateralis with Different Measurement Methods: A Reliability Study.Sensors (Basel, Switzerland) · 2021Article
- The Measurement of Stiffness for Major Muscles with Shear Wave Elastography and Myoton: A Quantitative Analysis Study.Diagnostics (Basel, Switzerland) · 2021Article
- Quadriceps and Patellar Tendon Thickness and Stiffness in Elite Track Cyclists: An Ultrasonographic and Myotonometric Evaluation.Frontiers in physiology · 2020Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Habitual loading and resistance training (RT) can lead to changes in muscle and tendon morphology as well as in its mechanical properties which can be measured by Shear Wave Elastography (SWE) technique. The objective of this study was to analyze the Vastus Lateralis (VL) and patellar tendon (PT) mechanical properties adaptations to an 8-week RT protocol using SWE. We submitted 15 untrained health young men to an 8-week RT directed for knee extensor mechanism. VL and PT shear modulus (μ) were assessed pre and post intervention with SWE. PT thickness (PTT), VL muscle thickness (VL MT) and knee extension torque (KT) were also measure pre and post intervention to ensure the RT efficiency. Significant increases were observed in VL MT and KT (pre = 2.40 ± 0.40 cm and post = 2.63 ± 0.35 cm, p = 0.0111, and pre = 294.66 ± 73.98 Nm and post = 338.93 ± 76.39 Nm, p = 0.005, respectively). The 8-week RT was also effective in promoting VL μ adaptations (pre = 4.87 ± 1.38 kPa and post = 9.08.12 ± 1.86 kPa, p = 0.0105), but not in significantly affecting PT μ (pre = 78.85 ± 7.37 kPa and post = 66.41 ± 7.25 kPa, p = 0.1287) nor PTT (baseline = 0.364 ± 0.053 cm and post = 0.368 ± 0.046 cm, p = 0.71). The present study showed that an 8-week resistance training protocol was effective in adapting VL μ but not PT μ. Further investigation should be conducted with special attention to longer interventions, to possible PT differential individual responsiveness and to the muscle-tendon resting state tension environment.
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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.