Deleted Journal, Год журнала: 2024, Номер 63(3)
Опубликована: Июль 1, 2024
Язык: Английский
Опубликована: Март 24, 2023
COVID-19 has harmful impact on health. It is especially important for endurance athletes (EAs). Sleep and psychology influence sport performance. Aims of this study were: (1) investigation the consequences mild sleep (2) assessment conse-quences infection cardiopulmonary exercise test (CPET) results. 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- completed a survey. Exercise performance was deteriorated after (maximal oxy-gen uptake; VO2max= 47.81±7.81 vs 44.97±7.00 ml·kg·min−1 respectively infection; p<0.001). Waking up at night affected heart rate (HR) respiratory compensation point (RCP) (p=0.028). time influenced pulmonary ventilation (p=0.013), breathing frequency (p=0.010), blood lactate concentration (Lac) (p=0.013) RCP. Maximal power/speed (p=0.046) HR (p=0.070) linked with quality sleep. Stress management relaxation techniques VO2max (p=0.046), (p=0.033), Lac (p=0.045). Cardiorespiratory fitness correlated mental Medical Professionals should encourage to maintain proper health facilitate recovery.
Язык: Английский
Процитировано
5
Frontiers in Public Health, Год журнала: 2023, Номер 11
Опубликована: Ноя. 30, 2023
Introduction An adequate level of cardiorespiratory fitness (CRF) is critical for firefighters to perform the strenuous and physiologically demanding work firefighting safely effectively. The coronavirus disease 2019 (COVID-19) has been shown negatively impact CRF in both acute phase longer-term following infection. This study aimed determine changes pre- post-mild moderate COVID-19 infection investigate days past on change CRF. Methods measures from cardiopulmonary exercise testing (CPET) at annual occupational health exams that occurred pre-COVID-19 were obtained seven Arizona fire departments. Measures compared CPET evaluations year a cohort who self-reported mild illness between exams. Results Among 103 firefighters, mean age 40 ± 9 years, [as measured by peak oxygen consumption (VO 2 )] declined an average 2.55 ml·kg −1 ·min or 7.3% ( d = −0.38, p < 0.001) (mean time was 110 78 days). number showed small, yet significant, relationship VO r 0.250, 0.011). Estimated marginal effects indicated when biological sex, age, BMI are controlled for, predicted returned values ~300 after Conclusion Peak (ml·kg ) among reporting decrease implications operational readiness safety firefighters.
Язык: Английский
Процитировано
5
International Journal of Environmental Research and Public Health, Год журнала: 2023, Номер 20(5), С. 4025 - 4025
Опубликована: Фев. 24, 2023
A proper diet increases the effectiveness of training and accelerates post-workout regeneration. One factors determining eating behaviour are personality traits, including those included in Big Five model, i.e., neuroticism, extraversion, openness, agreeableness, conscientiousness. The aim this study was to analyse determinants peri-exercise nutritional behaviours among an elite group Polish athletes practicing team sports. conducted a 213 athletes, using author’s validated questionnaire exercise-related nutrition NEO-PI-R (Neuroticism Extraversion Openness-Personality Inventory-Revised). statistical analysis performed Pearson’s linear correlation Spearman’s rank coefficients as well multiple regression analysis, assuming significance level α = 0.05. It has been shown that overall index regarding normal decreased with increasing neuroticism (r −0.18) agreeableness −0.18). An relationship between traits (sub-scales) model demonstrated intensification three hostility/anger (R −0.20), impulsiveness/immoderation −0.18), vulnerability stress/learned helplessness −0.19), four straightforwardness/morality −0.17), compliance/cooperation modesty −0.14), tendermindedness/sympathy −0.15) (p < 0.05). exhibited full consisting all analysed explained 99% variance concerning index. In conclusion, under conditions physical effort decreases along professionally
Язык: Английский
Процитировано
4
Опубликована: Март 22, 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. 4043 runners (age=33.58 (8.12) years; 83.53% males; BMI=23.66 (2.54) kg·m−2) 1026 cyclists (age=36.88 (9.03) 89.67% BMI=24.04 (2.65) underwent maximum Student t-test, mean absolute percentage error (MAPE), (MAE), root square (RMSE) were applied 8 5 equations. was 184.60 (9.79) beats·min−1 182.66 (10.28) respectively cycling, p=0.001. Measured predicted differed significantly (p=0.001) 9 13 (69.23%) models. overestimated by (61.54%) underestimated (38.46%) formulae. Overestimated ranged 0.08-4.94 0.03-4.90 beats·min−1. MAE RMSE 0.18-4.94 9.13-10.47, respectively. MAPE 3.95-4.69%. do not allow accurate estimation HRmax. more often than overestimated. Predicted can be implemented as supplemental method CPET preferable approach.
Язык: Английский
Процитировано
4
Sports medicine research and practice, Год журнала: 2024, Номер 13(4), С. 76 - 86
Опубликована: Янв. 26, 2024
Aim : to summarize the data published in our country and abroad on diagnosis of cardiac complications after COVID‑19 compare it with own experience examining such athletes. Materials methods open sources as eLibrary, Scopus, PubMed etc. were used a scientific base achieve set goal, meta-analysis 42 domestic foreign literature was carried out upon results post‑COVID changes Besides that, indicators 11467 athletes, aged from 16 45 years, studied who have been playing for Moscow national team passed in‑depth medical examination basis Sports Medicine Clinic Scientific Practical Center Medical Rehabilitation, Restorative Medicine. Results prevalence myocarditis mild athletes does not exceed 1 %, arrhythmia 9 %. Classical cardiovascular screening is sufficient their detection most cases. If hospitalization necessary, risks increase up 7.2 myocardial infarction 4,7 other 3–14 % require advanced diagnostics. For optimal resource management healthcare system, working algorithm returning trainings previous proposed. Conclusion cases classical enough symptomatic individuals sports COVID‑19. However, additional examinations, including loading tests MRT, are required find possible latent ongoing pathology well evaluate prospects athlete.
Язык: Английский
Процитировано
1
Journal of Exercise Science & Fitness, Год журнала: 2024, Номер 22(4), С. 350 - 358
Опубликована: Июнь 19, 2024
The aims of this study were to examine the effect SARS-CoV-2 infection on cardiorespiratory fitness (CRF) and time-trial performance in vaccinated well-trained young kayak athletes. This is a longitudinal observational study. Sixteen (7 male, 9 female) kayakers underwent body composition assessment, maximal graded exercise test, 1000-m tests 21.9 ± 1.7 days before 66.0 2.2 after infection. perception training load was quantified with Borg's CR-10 scale return sport period. There significant decreases peak oxygen uptake (-9.7%; size [ES] =1.38), pulse (-5.7%; ES =0.96), heart rate (-1.9%; =0.61). Peak minute ventilation, ventilation/carbon dioxide production slope unchanged compared pre-infection values. In entire 1000-m, impaired tendencies found completion time, mean power, speed (-2.4 1.2%; small ESs =-0.40 0.47) as well changes stroke length (-4.5 3.7%; =-0.60 0.73). decreased CRF even two months regular
Язык: Английский
Процитировано
0
Опубликована: Апрель 20, 2023
The use of isolated supplements to enhance performance is widespread among athletes. aim this study was increase knowledge about the combined effects caffeine and New Zealand blackcurrant (NZBC) dietary supplements. In study, two subjects each underwent four phases sessions in a double-blind randomized alternating treatment single-case design. After 3-week pre-test phase, supplement combinations placebo/placebo, caffeine/placebo (5 mg/kg), NZBC/placebo (600 mg), caffeine/NZBC mg/kg + 600 mg) were taken weekly tests conducted examine their on relative power (W/kg) during 20-minute time trial bicycle. Data analyzed descriptively using Tau-U calculator from Single Case Research. ergogenic effect confirmed both subjects, with increases 3.3% 6.5%, while positive NZBC only seen one subject (13.4%). combination again increased (2.2% 19.2%), but data showed an additive subject. Further studies are required confirm or refute evidence synergistic these
Язык: Английский
Процитировано
1
Scientific Journal of Sport and Performance, Год журнала: 2024, Номер 3(2), С. 145 - 159
Опубликована: Янв. 4, 2024
The use of single supplements to enhance performance is widespread among athletes. aim this study was increase knowledge about the combined effects caffeine and New Zealand blackcurrant (NZBC) dietary supplements. In counterbalanced alternating treatment single-case design, two participants each underwent four phases sessions in a double-blind, randomized order. After 3-week pre-test phase, supplement combinations placebo/placebo, caffeine/placebo (5 mg/kg), NZBC/placebo (600 mg), caffeine/NZBC mg/kg + 600 mg) were taken weekly tests conducted examine their on relative power (W/kg) during 20-minute time trial bicycle. Data analyzed descriptively using Tau-U calculator from Single Case Research. ergogenic effect confirmed both participants, with increases 3.3% 6.5%, while positive NZBC only seen one participant (13.4%). combination again increased (2.2% 19.2%), but data showed near additive participant. did not show consistent improvement intake NZBC. Further studies are required confirm or refute evidence synergistic these
Язык: Английский
Процитировано
0
Deleted Journal, Год журнала: 2024, Номер 63(3)
Опубликована: Июль 1, 2024
Язык: Английский
Процитировано
0