Trial reportEuropean journal of applied physiology2011
Muscle architecture and EMG activity changes during isotonic and isokinetic eccentric exercises.
Trial report in European journal of applied physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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.
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Who cites it
13 citing papers in PubMed.
- Neuromuscular fatigue differences between prepubertal boys and men after maximal concentric versus eccentric isokinetic knee extensions.European journal of applied physiology · 2026Trial
- Effects of Tissue Flossing and Dynamic Stretching on Hamstring Muscles Function.Journal of sports science & medicine · 2020Trial
- Isokinetic eccentric training is more effective than constant load eccentric training for quadriceps rehabilitation following anterior cruciate ligament reconstruction: a randomized controlled trial.Brazilian journal of physical therapyTrial
- Electromyographic and mechanomyographic responses of the biceps brachii during concentric and eccentric muscle actions to failure at high and low relative loads.European journal of applied physiology · 2023Article
- The Effect of Omega-3 Fatty Acids on Sarcopenia: Mechanism of Action and Potential Efficacy.Marine drugs · 2023Review
- Downhill running affects the late but not the early phase of the rate of force development.European journal of applied physiology · 2022Article
- Muscle activation during leg-press exercise with or without eccentric overload.European journal of applied physiology · 2020Article
- Intramuscular Fat Influences Neuromuscular Activation of the Gluteus Medius in Older Adults.Frontiers in physiology · 2020Article
- Corticospinal excitability of tibialis anterior and soleus differs during passive ankle movement.Experimental brain research · 2019Article
- The Influence of Growth and Maturation on Stretch-Shortening Cycle Function in Youth.Sports medicine (Auckland, N.Z.) · 2018Review
- Muscle-Tendon Unit PropertiesFrontiers in physiology · 2017Article
- Reactive oxygen species generation is not different during isometric and lengthening contractions of mouse muscle.American journal of physiology. Regulatory, integrative and comparative physiology · 2013Article
- Alterations of Neuromuscular Function after the World's Most Challenging Mountain Ultra-Marathon.PloS one · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The present study aimed to compare muscle architecture and electromyographic activity during isotonic (IT) and isokinetic (IK) knee extensors eccentric contractions. Seventeen subjects were assigned in test and reproducibility groups. During test session, subjects performed two IT and two IK sets of eccentric contractions of knee extensor muscles. Torque, angular velocity, VL architecture and EMG activity of agonist (vastus lateralis, VL; vastus medialis; rectus femoris) and antagonist (semitendinosus; biceps femoris, BF) muscles were simultaneously recorded and averaged on a 5° window. Torque-angle and angular velocity-angle relationships exhibited differences in mechanical load between the IT and IK modes. Changes in muscle architecture were similar in both modes, since VL fascicles length increased and fascicle angle decreased, resulting in a decrease in muscle thickness during eccentric contraction. Agonist activity and BF co-activity levels were higher in IT mode than in IK mode at short muscle lengths, whereas agonist activity was higher in IK mode than in IT mode at long muscle lengths. Differences in mechanical load between both modes induced specific neuromuscular responses in terms of agonist activity and antagonist co-activity. These results suggest that specific neural adaptations may occur after IT or IK eccentric training. This hypothesis needs to be tested in order to gain new insights concerning the most effective eccentric protocols based on whether the objective is sportive or clinical.
Indexed as
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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.