ArticleFrontiers in physiology2021
The Effect of Quadriceps Muscle Length on Maximum Neuromuscular Electrical Stimulation Evoked Contraction, Muscle Architecture, and Tendon-Aponeurosis Stiffness.
Article in Frontiers in physiology, 2021. 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 14 papers, 1 of them a synthesis 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.
What is the Best Joint Angle of the Knee and Hip to Optimize the Neuromuscular and Tendinous Adaptations Induced by Neuromuscular Electrical Stimulation of the Femoral Quadriceps? Implications for Rehabilitation
Effect of Femoral Quadriceps Muscle Length on Fatigue, Neuromuscular Performance, Oxygen Uptake and Discomfort Induced by Neuromuscular Electrical Stimulation
Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.
- Pooled it
- Comparative Effects of Femoral Nerve Neurodynamic Techniques and Static Stretching on Quadriceps Muscle Mechanical Properties.Bioengineering (Basel, Switzerland) · 2026Article
- Electrical stimulation reduces post-exercise muscle stiffness and enhances flexibility in hamstring muscles.European journal of applied physiology · 2026Article
- Associations between muscle stiffness, muscle co-activation, and balance in older individuals with knee osteoarthritis: a cross-sectional study.European journal of medical research · 2025Article
- Observational
- Long COVID-19 alters muscle architecture and muscle-tendon force transmission: a one-year longitudinal study.Frontiers in physiology · 2025Article
- The impact of anterior knee displacement on knee joint load during the forward bow step in Tai Chi.Frontiers in bioengineering and biotechnology · 2024Article
- Impact of Quadriceps Tendon Graft Thickness on Electromechanical Delay and Neuromuscular Performance After ACL Reconstruction.Orthopaedic journal of sports medicine · 2023Article
- The Influence of Hip and Knee Joint Angles on Quadriceps Muscle-Tendon Unit Properties during Maximal Voluntary Isometric Contraction.International journal of environmental research and public health · 2023Article
- Bionic reconstruction of tension trabeculae in short-stem hip arthroplasty: a finite element analysis.BMC musculoskeletal disorders · 2023Article
- Article
- Hip and Knee Joint Angles Determine Fatigue Onset during Quadriceps Neuromuscular Electrical Stimulation.Applied bionics and biomechanics · 2022Article
- The effect of stretch-shortening magnitude and muscle-tendon unit length on performance enhancement in a stretch-shortening cycle.Scientific reports · 2021Article
- Effect of the Knee and Hip Angles on Knee Extensor Torque: Neural, Architectural, and Mechanical Considerations.Frontiers in physiology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Muscle-tendon unit length plays a crucial role in quadriceps femoris muscle (QF) physiological adaptation, but the influence of hip and knee angles during QF neuromuscular electrical stimulation (NMES) is poorly investigated. We investigated the effect of muscle length on maximum electrically induced contraction (MEIC) and current efficiency. We secondarily assessed the architecture of all QF constituents and their tendon-aponeurosis complex (TAC) displacement to calculate a stiffness index. This study was a randomized, repeated measure, blinded design with a sample of twenty healthy men aged 24.0 ± 4.6. The MEIC was assessed in four different positions: supine with knee flexion of 60° (SUP60); seated with knee flexion of 60° (SIT60); supine with knee flexion of 20° (SUP20), and seated with knee flexion of 20° (SIT20). The current efficiency (MEIC/maximum tolerated current amplitude) was calculated. Ultrasonography of the QF was performed at rest and during NMES to measure pennation angle (θ CLINICAL
trial registrationwww.ClinicalTrials.gov, identifier NCT03822221.
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.