Regional differences of physical fitness and overweight and obesity prevalence among college students before and after COVID-19 pandemic since the “double first-class” initiative in China

Frontiers in Public Health, Год журнала: 2024, Номер 11

Опубликована: Янв. 5, 2024

Physical fitness has been widely recognized as a powerful marker of health in children and adolescents, it negatively affected by the COVID-19 pandemic. The construction world-class universities first-class disciplines, known "Double First-Class" Initiative (DFC), is major commitment made Chinese government to adapt changes educational environment, both domestically internationally, order promote development practice international higher education. aim study was look deep into regional differences physical overweight obesity prevalence among college students before after pandemic since DFC. original parameters from 10 DFC colleges Central South China were downloaded official website National Student Fitness Database (CNSPFD) then divided 3 groups based on periods: pre-pandemic (2019), first year outbreak (2020), second (2021). All data stored Excel 2010, analyzed SPSS 17.0, plotted with ArcGIS 10.4. total "fail" percentage (from 9.19% 2019 12.94% 2021) boys 22.53 29.25% exhibited continuous increase year, all indicators score strength endurance quality individuals lowest groups. Students 'fail' rate developed northern northeastern province southern areas 2021. For grade 2019th, who also failed test had covered nationwide most including northeast, east, well central north senior year. distribution overall assessments Hubei accordance national data, scoring growths class 2021st 2022nd measured negative (p < 0.01). related functional departments should take consideration student sources, especially western northeast regions China, school polices education (PE) teachers pay more attention put training efforts for adolescents group standard test, when designing specific interventions counteract effects students.

Язык: Английский

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COVID-19 reduces cardiorespiratory fitness even months after a mild to moderate acute phase: a retrospective cohort study

Infectious Diseases, Год журнала: 2023, Номер 55(10), С. 684 - 693

Опубликована: Июль 3, 2023

Background COVID-19 survivors may experience long-term health problems, including deterioration of cardiorespiratory fitness (CRF), as demonstrated by several cross-sectional studies that compared the results cardiopulmonary exercise tests (CPET) performed only after with predicted values. This study aimed to analyze a change in CRF between repeated CPETs response suffered COVID-19.Methods A total 127 healthcare workers (HCWs; mean age 55.7 years) underwent two interval 762 days. Forty HCWs from (mild moderate severity) interim (321 days before second CPET), and 87 formed control group. Mixed-effects regression multiple adjustment interaction terms was used for variables – maximum oxygen uptake (VO2 max) power output.Results Between both CPETs, VO2 max decreased statistically significantly subgroup (by 3.12 mL/kg/min, p = .034) insignificantly controls 0.56 .412). The proportion achieving 75.9% 59.5% (p .161) survivors, while it increased 73.8% 81% .274) controls. (β −0.66, .014) body mass index −0.49, < .001) were independent negative predictors change. not associated output.Conclusions On basis significantly, albeit rather modestly, reduces almost one year infection. reduction persists even acute phase mild or severity.

Язык: Английский

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Below or all the way to the peak? Oxygen uptake efficiency slope as the index of cardiorespiratory response to exercise—the NOODLE study

Frontiers in Physiology, Год журнала: 2024, Номер 15

Опубликована: Янв. 26, 2024

Background: The ratio of oxygen uptake (VO 2 ) to minute ventilation (VE) is described as the efficiency slope (OUES). OUES has been suggested a valuable submaximal cardiorespiratory index; however, its characteristics in endurance athletes remain unknown. In this study, we a) investigated between different time intervals, b) assessed their prediction power for VO peak, and c) derived new equations tailored well-trained individuals. Materials Methods: A total 77 male (age = 21.4 ± 4.8 yrs; BMI 22.1 1.6 kg·m −2 ; peak 4.40 0.64 L·min −1 63 female individuals 23.4 4.3 23.1 3.21 0.48 underwent cycling cardiopulmonary exercise test. was measured at 75%, 90%, 100% duration. Prediction models were with multiple linear regression method. Results: subjects, [mL·min /L·min ] from 75% 4.53 0.90, 90% 4.52 0.91, 4.41 0.87. 3.50 0.65, 3.49 0.62, 3.41 0.58. did not differ intervals ( p 0.65) 0.69). strongly predicts independently measuring interval β 0.71–0.80; R 0.50–0.63). model designed elite −1.54 + 2.99; BSA [m ]—0.0014; [in years]; sex [1 male, female]) 0.36). Conclusion: enables an accurate fitness athletes. feasible alternative maximal testing. equation should be used highly trained Physicians understand physiology properly assess response athletic cohorts.

Язык: Английский

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Validity of the Maximal Heart Rate Prediction Models among Runners and Cyclists

Journal of Clinical Medicine, Год журнала: 2023, Номер 12(8), С. 2884 - 2884

Опубликована: Апрель 14, 2023

Maximal heart rate (HRmax) is a widely used measure of cardiorespiratory fitness. Prediction HRmax an alternative to cardiopulmonary exercise testing (CPET), but its accuracy among endurance athletes (EA) requires evaluation. This study aimed externally validate prediction models in the EA independently for running and cycling CPET. A total 4043 runners (age = 33.6 (8.1) years; 83.5% males; BMI 23.7 (2.5) kg·m−2) 1026 cyclists 36.9 (9.0) 89.7% 24.0 (2.7) underwent maximum Student t-test, mean absolute percentage error (MAPE), root square (RMSE) were applied eight five equations externally. was 184.6 (9.8) beats·min−1 182.7 (10.3) beats·min−1, respectively, cycling, p 0.001. Measured predicted differed significantly (p 0.001) 9 13 (69.2%) models. overestimated by (61.5%) underestimated (38.5%) formulae. Overestimated amounted 4.9 range up beats·min−1. RMSE 9.1–10.5. MAPE ranged 4.7%. allow limited precision estimation present inaccuracies. more often than overestimated. Predicted can be implemented as supplemental method, CPET preferable method.

Язык: Английский

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Respiratory muscle training induces additional stress and training load in well-trained triathletes—randomized controlled trial

Frontiers in Physiology, Год журнала: 2023, Номер 14

Опубликована: Сен. 28, 2023

Background: Respiratory muscle training (RMT) has been investigated in the context of improved athletic performance and pulmonary function. However, psychophysiological costs RMT remain understudied. Voluntary isocapnic hyperpnoea (VIH) inspiratory pressure threshold loading (IPTL) are widely applied methods. The main purposes this study were to assess whether induces additional load on well-trained triathletes determine differences RMT-induced between sexes Materials Methods: 16 (n = 16, 56% males) underwent 6 weeks VIH or IPTL program with progressive overload. Blood markers, subjective measures, cardiac indices, near-infrared spectroscopy fatigue, monitored pre-, post-sessions. We used multiple ANOVA investigate effects sex, method, time measured parameters. Results: There significant interactions for acid-base balance (p 0.04 p < 0.001 method), partial carbon dioxide 0.03 bicarbonate 0.01 lactate method single session, per week), average heart rate sex), maximum 0.02 intercostales oxygenation 0.007 testing recovery 0.003 week method). Conclusion: found that induced triathletes. Elicited changes variables depend sex method. significantly increased measures. was associated disbalance blood gasometry, increase lactate, reports headaches dizziness. Both methods should be consideration high-performance settings.

Язык: Английский

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Specific impact of a COVID-19 infection on training modalities of endurance sportsmen: an observational approach

Movement & Sport Sciences - Science & Motricité, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Endurance exercise places demand on the respiratory system. A COVID-19 infection, which affects system, could potentially increase this strain, possibly resulting in decreased endurance capacity. This research sought to examine how a infection influenced training modalities for sportsmen compared those not trained sports. total of 468 completed an online self-report questionnaire. The participants were categorized into (END, n = 246) and non-endurance (NEND, 222). study analyzed demographic information, sports profiles, characteristics, infection’s impact regimens. No significant differences observed between groups regarding symptoms, symptom duration, lingering or challenges when resuming training. However, 74.4% END reduced their volume, 25.6% NEND ( p < 0.001). Significant between-group noted initial durations 2–5, 5–8, 8–12 hours per week. significantly larger proportion required extended recovery time (61.7% vs 38.3%, 0.05). concluded that leads specific alterations patterns sportsmen, volume increased sportsmen.

Язык: Английский

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A Systematic Review and Meta-Analysis on Aerobic Fitness Dynamics in Post-COVID-19 Athletes: Implications in the Return-to-Play Performance

Sports, Год журнала: 2025, Номер 13(2), С. 40 - 40

Опубликована: Фев. 5, 2025

Maximal oxygen uptake (V.O2max) assesses athletic performance; however, its values are inconsistent in post-COVID-19 athletes. This study aimed to analyze the dynamics of V.O2max Observational studies were identified by screening PubMed database published up 17 July 2023. The initial electronic search found 320 studies. Of these, 26 employing cardiopulmonary exercise test (CPET) assess aerobic fitness selected. 2625 pooled athletes, 1464 infected and considered as group, either asymptomatic or symptomatic, while remaining 1161, who uninfected had results prior infection, defined infection-free group. Age differently distributed between athletes those without infection (p = 0.03 both). Persistent symptoms 8 mL/Kg/min lower than 0.04). In addition, post-infected underwent CPET after 12 weeks showed a significant reduction 2.9 according increase body mass index (BMI). analysis that was reduced post-COVID-19. negatively correlated with BMI at weeks, suggesting persist beyond affecting return-to-play.

Язык: Английский

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Association of Pre‐COVID Fitness With Post‐COVID Fitness and Long COVID in the Cooper Center Longitudinal Cohort Study

Journal of the American Heart Association, Год журнала: 2025, Номер unknown

Опубликована: Май 13, 2025

Background Cross‐sectional studies suggesting that SARS‐CoV‐2 infection and long COVID are associated with reduced cardiorespiratory fitness (CRF) lack preinfection CRF measures. The objective of this study was to determine the association change in CRF. Methods Cooper Center Longitudinal Study is a cohort based at Clinic, preventive medicine clinic Dallas, Texas; we included adults ages 20 74 years old assessed least twice between 2017 2023. status defined as “prepandemic” (2 measures pre‐2020), “uninfected” (no self‐reported COVID), “recovered” (self‐reported symptoms ≤3 months), or “long COVID” >3 months). estimated metabolic equivalents via maximal modified Balke treadmill protocol. Results We 4005 participants (mean age: 51.8 years, 26.8% women), whom, 1666 (41.6%) reported 80 (4.8% infected) along 1826 uninfected 513 pre‐pandemic controls. At baseline, those who later developed had lower (10.0 equivalents, 11.1 recovered, 10.7 uninfected, 11.3 prepandemic; P <0.001). All groups exhibited minor decreases (~0.2 equivalents; <0.001 for each). decreased slightly more among infected (−0.1 greater decrease [95% CI, −0.1 0.0]; =0.02) but not by ( =0.10). Conclusions Pre‐COVID fitness, on average, people COVID. does greatly accelerate age‐related declines CRF, even some COVID, although few severely disabling Future longitudinal research will clarify if differences emerge over longer follow‐up.

Язык: Английский

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Cardiopulmonary function alterations in mild and moderate SARS-CoV-2 patients: a longitudinal comparison of pre-infection and early recovery phases

Virology Journal, Год журнала: 2025, Номер 22(1)

Опубликована: Май 15, 2025

The purpose of this study is to compare and analyze the changes CPET pulmonary function indexes in patients with mild moderate SARS-CoV-2 before infection early recovery period, explore influence on cardiopulmonary fitness its pathogenesis. Clinical data 39 cases are collected, paired analyses ventilation parameters after performed using software SPSS. Bivariate correlations analyzed for days post-infection, VO2peak decline rate, VO2peak/kg infection, AHRR residual symptom count. results show that VO2peak, VO2peak/kg, AT significantly decreased infection. VE/VCO2 slope increased, while PetCO2, VEpeak, minimum showed reductions. FVC, FEV1, FEV1/FVC remained unchanged. OUES declined, along HRpeak, although no significant differences observed HRrest, HRR-1 min, HRR-2 min. number symptoms correlated but not duration. Additionally, rate strongly associated post-infection time VO2peak/kg. VO2/HR power also significantly. Moreover, function, including cardiac chronotropic muscle impaired patients. Residual closely linked function. Given large proportion cases, these findings offer valuable insights developing targeted interventions prevent further progression improve health population.

Язык: Английский

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Impact of COVID-19 Infection on Cardiorespiratory Fitness, Sleep, and Psychology of Endurance Athletes—CAESAR Study

Journal of Clinical Medicine, Год журнала: 2023, Номер 12(8), С. 3002 - 3002

Опубликована: Апрель 20, 2023

COVID-19 has a deteriorating impact on health which is especially important for endurance athletes (EAs) who need to maintain continuity of training. The illness affects sleep and psychology, influence sport performance. aims this study were: (1) assess the consequences mild psychology (2) cardiopulmonary exercise test (CPET) results. A total 49 EAs (males = 43, 87.76%; females 6, 12.24%; age 39.9 ± 7.8 years; height 178.4 6.8 cm; weight 76.3 10.4 kg; BMI 24.0 2.6 kg·m−2) underwent maximal cycling or running CPET pre- post-COVID-19 completed an original survey. Exercise performance deteriorated after (maximal oxygen uptake, VO2max 47.81 7.81 vs. 44.97 7.00 mL·kg·min−1 post-infection, respectively; p < 0.001). Waking up at night affected heart rate (HR) respiratory compensation point (RCP) (p 0.028). Sleep time influenced pulmonary ventilation 0.013), breathing frequency 0.010), blood lactate concentration (Lac) 0.013) RCP. power/speed 0.046) HR 0.070) were linked quality sleep. Stress management relaxation techniques with 0.046), 0.033), Lac 0.045). Cardiorespiratory fitness was correlated psychological indices. Medical professionals should encourage proper mental infection facilitate recovery.

Язык: Английский

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