Trial reportBritish journal of sports medicine1999
Analysis of the aerobic-anaerobic transition in elite cyclists during incremental exercise with the use of electromyography.
Trial report in British journal of sports medicine, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06584734 (Effect of Intradialytic Exercise on Left Ventricular Diastolic Function in Hemodialysis Patients), which is not on this map. Cited by 48 papers, 3 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.
Effect of Intradialytic Exercise on Left Ventricular Diastolic Function in Hemodialysis Patients
Who cites it
48 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- The Additional Effect of Training Above the Maximal Metabolic Steady State on VO2peak, Wpeak and Time-Trial Performance in Endurance-Trained Athletes: A Systematic Review, Meta-analysis, and Reality Check.Sports medicine (Auckland, N.Z.) · 2024Pooled it
- Does Beetroot Supplementation Improve Performance in Combat Sports Athletes? A Systematic Review of Randomized Controlled Trials.Nutrients · 2023Pooled it
- Effects of Beetroot Juice Supplementation on Cardiorespiratory Endurance in Athletes. A Systematic Review.Nutrients · 2017Pooled it
- Metabolic Biomarkers of Red Beetroot Juice Intake at Rest and after Physical Exercise.Nutrients · 2023Trial
- Assessing the feasibility of near-infrared spectroscopy for evaluating physiological exercise thresholds.Scientific reports · 2025Article
- The Metabolome Characteristics of Aerobic Endurance Development in Adolescent Male Rowers Using Polarized and Threshold Model: An Original Research.Metabolites · 2025Article
- Core body temperature correlates of transition from aerobic to anaerobic metabolism in running.PeerJ · 2025Article
- Inter-day reliability of heart rate complexity and variability metrics in healthy highly active younger and older adults.European journal of applied physiology · 2024Article
- Boys-men mean-power-frequency differences in progressive exercise to exhaustion, confounded by variability and adiposity.European journal of applied physiology · 2024Article
- Prediction of Relevant Training Control Parameters at Individual Anaerobic Threshold without Blood Lactate Measurement.International journal of environmental research and public health · 2023Article
- Surface Electromyography Thresholds as a Measure for Performance Fatigability During Incremental Cycling in Patients With Neuromuscular Disorders.Frontiers in physiology · 2022Article
- Physiological Responses to Acute Cycling With Blood Flow Restriction.Frontiers in physiology · 2022Article
- Respiratory Activity during Exercise: A Feasibility Study on Transition Point Estimation Using Impedance Pneumography.Sensors (Basel, Switzerland) · 2021Article
- EMG breakpoints for detecting anaerobic threshold and respiratory compensation point in recovered COVID-19 patients.Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology · 2021Observational
- Severe loss of mechanical efficiency in COVID-19 patients.Journal of cachexia, sarcopenia and muscle · 2021Article
- Muscle Recovery after a Single Bout of Functional Fitness Training.International journal of environmental research and public health · 2021Article
- Effect of moderate and Severe Hypoxic exposure coupled with fatigue on psychomotor vigilance testing, muscle tissue oxygenation, and muscular performance.Current research in physiology · 2021Article
- Wheelchair propulsion fatigue thresholds in electromyographic and ventilatory testing.Spinal cord · 2020Article
- Isometric-based EMG threshold in girls and women.European journal of applied physiology · 2020Article
- Session RPE Breakpoints Corresponding to Intensity Thresholds in Elite Open Water Swimmers.Journal of functional morphology and kinesiology · 2020Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo investigate the validity and reliability of surface electromyography (EMG) as a new non-invasive determinant of the metabolic response to incremental exercise in elite cyclists. The relation between EMG activity and other more conventional methods for analysing the aerobic-anaerobic transition such as blood lactate measurements (lactate threshold (LT) and onset of blood lactate accumulation (OBLA)) and ventilatory parameters (ventilatory thresholds 1 and 2 (VT1 and VT2)) was studied.
methodsTwenty eight elite road cyclists (age 24 (4) years; VO2MAX 69.9 (6.4) ml/kg/min; values mean (SD)) were selected as subjects. Each of them performed a ramp protocol (starting at 0 W, with increases of 5 W every 12 seconds) on a cycle ergometer (validity study). In addition, 15 of them performed the same test twice (reliability study). During the tests, data on gas exchange and blood lactate levels were collected to determine VT1, VT2, LT, and OBLA. The root mean squares of EMG signals (rms-EMG) were recorded from both the vastus lateralis and the rectus femoris at each intensity using surface electrodes.
resultsA two threshold response was detected in the rms-EMG recordings from both muscles in 90% of subjects, with two breakpoints, EMGT1 and EMGT2, at around 60-70% and 80-90% of VO2MAX respectively. The results of the reliability study showed no significant differences (p > 0.05) between mean values of EMGT1 and EMGT2 obtained in both tests. Furthermore, no significant differences (p > 0.05) existed between mean values of EMGT1, in the vastus lateralis and rectus femoris, and VT1 and LT (62.8 (14.5) and 69.0 (6.2) and 64.6 (6.4) and 68.7 (8.2)% of VO2MAX respectively), or between mean values of EMGT2, in the vastus lateralis and rectus femoris, and VT2 and OBLA (86.9 (9.0) and 88.0 (6.2) and 84.6 (6.5) and 87.7 (6.4)% of VO2MAX respectively).
conclusionrms-EMG may be a useful complementary non-invasive method for analysing the aerobic-anaerobic transition (ventilatory and lactate thresholds) in elite cyclists.
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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.