Background: High school education took place in the form of distance learning during SARS-CoV-2 pandemic worldwide, including Hungary. Decreased physical activity and an increase in inactive behaviours may lead to an increased risk of obesity, diabetes, and cardiovascular disease. Aim: Our study targeted changes in physical activity (aerobic exercise, muscle strengthening) and screen time in adolescents and young adults during the pandemic. Methods: High school students were interviewed in 66 public schools in 37 Hungarian cities (N = 2508). Survey items on physical activity and screen time were derived from the WHO Health Behaviour of School-aged Children Survey and the Centers for Disease Control Youth Risk Behavior Survey. A 2 × 2 factorial ANCOVA was used to test the effects of gender (male vs. female) and/or age (adolescents vs. young adults) on the reported changes in physical activity and screen time before and during lockdown (covariate: BMI Z-score). Results: The majority of the cohort indicated less physical activity. Aerobic and muscle-strengthening type of exercises significantly decreased, and screen time increased during distance education. Male individuals showed a higher decrease in the level of aerobic exercise, and young adults reported a higher increase in the time spent in front of the screen.

Motocross is one of the most popular high-speed motorcycle races, which takes place on a naturally closed track with significant challenges. This study aimed to characterize anthropometric, circulatory, and lower and upper limb muscle properties based on laboratory and race-recorded characteristics. Male competitors (n = 3) aged 14 years (MX) were included in the study. All three boys have national and international experience. Metabolic characteristics (ventilation, oxygen consumption, and carbon dioxide production) and heart rate (HR) were measured in the laboratory while HR and speed were measured while racing. No significant difference was found between the three competitors in terms of HR during the race. In terms of number of sprints (No. sprint) and maximum speed (Speedmax), we found the most successful runner (highest finisher) to have the most sprints and maximum speed. Comparing the metabolic characteristics, it was found that racing was between the respiratory breakpoint (VT₁) and the respiratory compensation point (RCP), but, in several cases, crossed the anaerobic threshold. While motocross riders are exposed to extreme conditions and high physical demands, in motorsport, victories depend not only on the athlete’s physical abilities but also on several factors such as driving technique, mental effort, equipment efficiency and resistance, race strategy, and team competence.

Many amateur and professional players start racing at an early age. The aim is to explore the characteristics of heart rate and speed patterns recorded during competition. We investigated the body composition and cardiorespiratory characteristics of three elite adolescent athletes, their heart rate, and speed patterns in the laboratory and competition. There is no difference between the three riders' anthropometric and body composition values, except for training age (TA), where rider (b) started riding three years ago. The intra-race heart rate patterns of the three riders showed similarities in several places and differences in several places. This was also true for the speed patterns. The differences between races were more pronounced in the heart rate pattern.

Összefoglaló. Bevezetés: A SARS-CoV-2-világjárvány idején a középiskolai oktatás távoktatás formájában zajlott világszerte, így Magyarországon is. A csökkent fizikai aktivitás és az inaktív viselkedésmódok növekedése az elhízás, a cukorbetegség és a szív- és érrendszeri betegségek fokozott kockázatához vezet. Célkitűzés: Vizsgálatunk a fizikai aktivitás (aerob testmozgás, izomerősítés, csapatsportok) és az egészségi állapot szubjektív megítélésének változásaira irányult serdülőknél és fiatal felnőtteknél a világjárvány alatt. Módszer: Középiskolás diákokat kérdeztünk meg 37 magyarországi város 66 állami iskolájában (n = 2508). A fizikai aktivitásra és az egészségi állapot szubjektív megítélésére vonatkozó kérdőíves tételeket a WHO Health Behaviour of School-aged Children Survey és a Centers for Disease Control and Prevention Youth Risk Behavior Survey felméréséből vettük át. 2 × 2 × 4 faktoriális ANCOVA-t használtunk a nem és/vagy az életkor, illetve a régiók hatásának tesztelése céljából a fizikai aktivitás és az egészségi állapot szubjektív megítélésének változásaira, a távoktatási időszak előtt és alatt. Eredmények: A középiskolás diákok többsége kevesebb fizikai aktivitást jelzett, a fizikai aktivitás gyakoriságának csökkenése volt jellemző a távoktatás időszakában. Átlagosan heti 2–3 nappal kevesebbszer végeztek fizikai aktivitást régiótól függetlenül. Közel egynegyedük az egészségi állapotát rosszabbnak minősítette a távoktatás alatt, mint előtte. Az egészségi állapot szubjektív csökkenéséről nagyobb arányban számoltak be azok, akik a fizikai aktivitásukban is csökkenést jeleztek. Következtetés: A távoktatás időszakában tapasztalható csökkenés a fizikai aktivitás gyakoriságában együtt jár az egészségi állapot szubjektív megítélésének csökkenésével, különösen a lányok, a vidéken élők és a serdülő korú személyek körében. Orv Hetil. 2022; 163(17): 655–662. Summary. Introduction: High school education took place in the form of distance learning during SARS-CoV-2 pandemic worldwide, including Hungary. Decreased physical activity and an increase in inactive behaviours may lead to an increased risk of obesity, diabetes, and cardiovascular disease. Objective: Our study focused on changes in physical activity (aerobic exercise, muscle strengthening, team sports) and subjective perceptions of health status in adolescents and young adults during the pandemic. Method: High school students in 66 public schools in 37 cities in Hungary (n = 2508) were surveyed. Questionnaire items on physical activity and subjective perceptions of health were adapted from the WHO Health Behaviour of School-aged Children Survey and the Centers for Disease Control and Prevention Youth Risk Behavior Survey. 2 × 2 × 4 factorial ANCOVA was used to test the effect of gender and/or age and region on changes in subjective perceptions of physical activity and health before and during distance education. Results: The majority of the high school students reported a decrease in physical activity frequency during the distance learning period, with an average of 2–3 fewer days of physical activity per week regardless of region. Nearly a quarter of them rated their health as worse during distance learning than before. A higher proportion of those who reported a subjective decline in health also reported a decline in physical activity. Conclusion: A decline in physical activity during the period of distance learning is associated with a decline in subjective perceptions of health, especially among rural adolescent girls. Orv Hetil. 2022; 163(17): 655–662.

(1) Background: Fatigue impacts neuromuscular performance, especially in endurance sports like rowing. The aim is to explore how continuous workload affects explosiveness and fatigue progression. This study examines acute fatigue during repeated race events by assessing vertical jump height, force output, and subjective fatigue over three consecutive days at the 2024 Hungarian National Rowing Championships. (2) Methods: Nine rowers (five women, four men; mean age 20.17 ± 1.73 years) competed in multiple 2000 m races over three days. Lower limb explosiveness was measured via countermovement jump (CMJ) using a Kistler force plate, pre- and post-race. Heart rate data were recorded with Polar Team Pro^®. Subjective fatigue was assessed using the ‘Daily Wellness Questionnaire’. (3) Results: We found a significant difference in the pattern of the medians of the force exerted by males during the jump between the results of the Thursday preliminaries (ThuQ_Me = 13.3) and the second final (ThuF2_Me = −75.5). Women showed no notable changes. (4) Conclusion: Repeated high-intensity races induce neuromuscular fatigue in men, reflected in reduced explosiveness and increased subjective fatigue. Future research should incorporate biochemical markers to deepen the understanding of fatigue mechanisms.