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Objective: To evaluate the effects of bilateral dorsolateral prefrontal cortex high-definition transcranial direct current stimulation (HD-tDCS) on glycemic excursions during a time-trial performance in elite cyclists with type 1 diabetes (T1D).
Methods: In a double-blind, randomized crossover order, 9 elite cyclists with T1D (no complications) underwent either HD-tDCS (F3 and F4) or control (SHAM) and completed a constant-load trial at 75% of the second ventilatory threshold plus a 15-km cycling time trial.
Results: Real-time continuous glucose monitoring revealed similar glycemic variability between the 2 conditions, showing a significant effect of time but no interaction (stimulation × time) or stimulation effect.
Conclusion: Because glycemic control is crucial for both health and performance, these findings suggest that HD-tDCS could be safely used to enhance performance in athletes with T1D and potentially in a broader active T1D population.
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http://dx.doi.org/10.1016/j.eprac.2024.01.012 | DOI Listing |
Front Sports Act Living
August 2025
Department of Health Sciences, Swedish Winter Sports Research Centre, Mid Sweden University, Östersund, Sweden.
Introduction: Power profiling is widely used in cycling performance analysis, but both absolute and mass-normalized power outputs have limitations as performance indicators, as they neglect external factors such as terrain, wind, aerodynamic drag, and pacing strategy. To address these limitations, this study introduced a numerical method to quantify how external forces acting on the cyclist influence the conversion of power output into race velocity. Thus, the study aimed to enable accurate prediction of cycling performance based on estimated mean power output over complex time-trial courses.
View Article and Find Full Text PDFInt J Sports Physiol Perform
September 2025
LabCom Athlète Matériel Environnement, Besançon, France.
Introduction: While physiological predictors like maximal oxygen uptake and lactate threshold are well established in cycling, psychological factors such as affective load and effort perception remain less studied.
Purpose: The aim of this study was to explore the possible differences in psychophysiological responses between professional and national-level cyclists during a race simulation.
Methods: Twenty-four male cyclists (12 professionals and 12 national level) matched for V˙O2max (75.
Eur J Appl Physiol
August 2025
Department of Sports Medicine and Exercise Physiology, Institute of Sport Sciences, Goethe University, Frankfurt am Main, Germany.
Purpose: This study investigated the change in mitochondrial capacity and VOmax in elite triathlon, cycling, and Greco-Roman wrestling athletes over a 28-day training period.
Methods: Sixteen elite athletes (23 ± 2.5 years; 176 ± 6 cm; 76 ± 8 kg; 65 ± 6.
Int J Sports Physiol Perform
August 2025
Abt. Medizin, Training und Gesundheit, Inst. Sportwissenschaft und Motologie, Philipps Universität Marburg, Marburg, Germany.
Purpose: To assess the effects of cycling cadence, exercise intensity, and preload on blood lactate concentration (BLC), carbohydrate oxidation (CHO), and gross efficiency (GE) during 60-minute cycling sessions.
Methods: Eleven male triathletes (age: 28.2 [9.
J Sports Sci
October 2025
Alliance for Research in Exercise, Nutrition and Activity, UniSA Allied Health and Human Performance, University of South Australia, Adelaide, SA, Australia.
Repeated-sprint training in hypoxia (RSH) is increasingly used by athletes to improve repeat sprint ability in normoxia. However, the physiological responses to varying protocols remain unclear. This study aimed to determine how different RSH protocols affect acute physiological responses in elite cyclists.
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