Observational studyBMC musculoskeletal disorders2019
Reliability and validity of knee extensor strength measurements using a portable dynamometer anchoring system in a supine position.
Observational study in BMC musculoskeletal disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 78 citations in OpenAlex.
- Indirect calorimetry directed feeding and cycling in the older ICU population: a pilot randomised controlled trial.BMC anesthesiology · 2024Trial
- Eccentric contraction duration in bodyweight resistance exercise training for changes in physical function and health parameters of older adults.European journal of applied physiology · 2026Article
- Validity and reliability of hand-held dynamometers in hip, knee, and ankle strength testing in healthy adults: A systematic review and meta-analysis.Hong Kong physiotherapy journal : official publication of the Hong Kong Physiotherapy Association Limited = Wu li chih liao · 2026Article
- Intra-Session Reliability and Predictive Value of Maximum Voluntary Isometric Contraction for Estimating One-Repetition Maximum in Older Women: A Randomised Split-Sample Study.Journal of functional morphology and kinesiology · 2025Article
- A Guideline for Validated Return-to-Sport Testing in Everyday Clinical Practice: A Focused Review on the Validity, Reliability, and Feasibility of Tests Estimating the Risk of Reinjury After ACL Reconstruction.Orthopaedic journal of sports medicine · 2025Article
- Problems in Diagnosis and Treatment of Soleus Muscle Injuries-Narrative Review and Case Report.Journal of clinical medicine · 2025Review
- Design and validation of a wearable dynamometry system for knee extension-flexion torque measurement.Scientific reports · 2024Article
- Ebbing Strength, Fading Power: Unveiling the Impact of Persistent Fatigue on Muscle Performance in COVID-19 Survivors.Sensors (Basel, Switzerland) · 2024Article
- Article
- A portable articulated dynamometer for ankle dorsiflexion and plantar flexion strength measurement: a design, validation, and user experience study.Scientific reports · 2023Article
- Application of a Custom Device to Measure Isometric Knee Strength: Possible Injury Correlation in Professional Soccer (Football) Players.Journal of functional morphology and kinesiology · 2023Article
- Development and validation of a portable articulated dynamometry system to assess knee extensor muscle strength.Scientific reports · 2023Article
- Validity and Reliability of a Load Cell Sensor-Based Device for Assessment of the Isometric Mid-Thigh Pull Test.Sensors (Basel, Switzerland) · 2023Article
- Reliability of a Custom Device Used to Measure Isometric Knee Flexor and Extensor Strength in Standing Position.Life (Basel, Switzerland) · 2023Article
- Assessment of muscle strength in para-athletes: A systematic review of observational studies.Sports medicine and health science · 2022Review
- Handheld dynamometer reliability to measure knee extension strength in rehabilitation patients-A cross-sectional study.PloS one · 2022Article
- Effects of Hip Joint Angle on Quadriceps Recruitment Pattern During Knee Extension in Healthy Individuals: Analysis by Ultrasound-Based Shear-Wave Elastography.Frontiers in physiology · 2022Article
- Establishing Reference Values for Isometric Knee Extension and Flexion Strength.Frontiers in physiology · 2021Review
- Knee Extensor Strength Measurement in Patients With Limited Physical Activity Using a Supine Dynamometer Anchoring Frame.Annals of rehabilitation medicine · 2020Article
- Technology Used in the Prevention and Treatment of Shoulder and Elbow Injuries in the Overhead Athlete.Current reviews in musculoskeletal medicine · 2020Review
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
backgroundMuscle strength measurements using hand-held dynamometry (HHD) can be affected by the inadequate strength of the tester and lack of stabilization of the participants and the device. A portable HHD anchoring system was designed that enabled the measurement of isometric knee extensor muscle strength in a supine position. This can be used with individuals who are unable to assume the sitting position required for the measurement of knee extensor strength in conventional isokinetic dynamometry (IKD). The aim of this study was to evaluate the reliability and validity of knee extensor strength measurements using this device.
methodsThe maximal knee extensor isometric strength of the dominant leg in healthy adults aged 20 to 40 years was tested. Three trials of three contractions were assessed by two raters using the portable dynamometer anchoring system whilst the participant was in the supine position. After the three measurement trials, peak knee extensor torque was evaluated using IKD. The intraclass correlation coefficient (ICC) and 95% limits of agreement (LOA) for intra- and inter-rater reliability were obtained.
resultsThirty-nine participants (19 male and 20 female, aged 30.08 ± 4.16 y), completed the three measurement trials. The ICC for intra-rater reliability was 0.98 for the maximum measurements of knee extensor strength (95% confidence interval [CI]: 0.96-0.98) and 0.98 (95% CI: 0.96-0.99) for inter-rater reliability. The mean difference (%) between the maximum knee extensor strength measurements of each trial was 1.02% (LOA range: - 11.13 to 13.16%) for intra-rater and - 1.44% (LOA range: - 13.98 to 11.08%) for inter-rater measurements. The Pearson correlation coefficient of the maximum voluntary peak torque measurements with the portable dynamometer anchoring system and IKD was 0.927.
conclusionsThe portable dynamometer anchoring system is a reliable and valid tool for measuring isometric knee extensor strength in a supine position. Future clinical feasibility studies are needed to determine if this equipment can be applied to people with severe illness or disabilities.
trial registrationKCT0003041 .
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