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The aim of this study was to determine the acute effects of high-intensity cycling exercise on the variables of carotid artery compliance, distensibility and beta stiffness index in elite adolescent wrestlers. The subjects were elite athletes competing in national, European and World Championships, who attended a training camp in the province of Kahramanmaras organized by the Turkish Centre for Olympic Preparation. The study sample comprised 31 male elite wrestlers with a mean age of 15.90 ± 0.87 years, body height of 165.97 ± 9.7 cm and body mass of 66.3 ± 18.45 kg. The arterial stiffness variables of the wrestlers were measured with high-resolution Doppler ultrasonography before and 5 min after 30 s of high-intensity cycling exercise (the Wingate Anaerobic Cycling test). The results showed a statistically significant correlation between mean power performance and carotid artery compliance at the 5th min after a single cycling sprint exercise (p < 0.05). No correlation was determined between peak power and the arterial stiffness variables (p > 0.05). The study results indicate that acute changes in arterial stiffness variables are associated with the performance level of high-intensity cycling exercise in a group of elite adolescent wrestlers.
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http://dx.doi.org/10.2478/hukin-2018-0100 | DOI Listing |
Psychol Sport Exerc
September 2025
Department of Experimental Psychology, University of Granada, Granada, Spain; Mind, Brain and Behavior Research Center (CIMCYC), University of Granada, Granada, Spain.
Cyclists frequently experience task failure, an abrupt inability to maintain high-intensity effort, pushing both physiological and psychological boundaries. Although the physiological underpinnings of task failure are well-documented, the associated subjective and perceptual experiences remain underexplored. To address this gap, we surveyed 2,818 licensed cyclists, gathering extensive data on the subjective aspects of reaching the point of exhaustion.
View Article and Find Full Text PDFJ Biomed Phys Eng
August 2025
School of Information Science and Engineering, Changsha Normal University, Changsha 410100, China.
Background: High-Intensity Focused Ultrasound (HIFU) represents a non-invasive treatment approach that utilizes non-ionizing radiation. This technique has found clinical utility in managing both benign and malignant solid tumors.
Objective: This study aimed to investigate the variations in HIFU frequency and duty cycle influence thermal lesion formation in tissue to identify the optimal parameter combination for HIFU therapy in multi-layered tissues.
Int 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.
NPJ Sustain Agric
August 2025
USDA-ARS Hydrology and Remote Sensing Laboratory, Beltsville, MD USA.
Agricultural management practices such as conservation tillage is promoted in the U.S. Midwest for improving soil health, mitigating nutrient loss, and reducing hypoxia in the Gulf of America (GOA).
View Article and Find Full Text PDFFront Physiol
August 2025
The August Krogh Section for Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark.
Introduction: The effect of muscle glycogen stores on performance during intense short-duration exercises in humans is unclear. We hypothesized that low initial muscle glycogen levels would impair constant-load intense one-legged knee extensor exercise lasting approximately 5 min and human muscle contractile function, as determined by maximal voluntary contraction (MVC), electrically induced single-twitch maximal force, rate of force development (RFD), and rate of relaxation. Furthermore, alter phosphorylation of the Na/K-ATPase (NKA) regulatory proteins AMPK and FXYD1 indicating attenuated NKA activity.
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