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Chmura P, Liu H, Andrzejewski M, Tessitore A, Sadowski J, Chmura J, Rokita A, Tański W, Cicirko L, Konefał M. Responses of soccer players performing repeated maximal efforts in simulated conditions of the FIFA World Cup Qatar 2022: A holistic approach. PLoS One 2022; 17:e0276314. [PMID: 36490259 PMCID: PMC9733889 DOI: 10.1371/journal.pone.0276314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/05/2022] [Indexed: 12/13/2022] Open
Abstract
This study aimed to assess the capacity for repeated maximal effort (RME) of soccer players in the thermo-natural conditions (NC) and in simulated conditions for the 2022 FIFA World Cup in Qatar (QSC). Twenty-four semi-professional soccer players participated in the study. The exercise test consisted of ten 6-second maximal efforts on a cycloergometer. A 90-second passive rest interval was used. The test was performed in a Weiss Technik WK-26 climate test chamber in two different conditions: 1) thermo-neutral conditions (NC-20.5°C; 58.7% humidity); and 2) simulated conditions for the 2022 World Cup in Qatar (QSC-28.5 ± 1.92°C; 58.7 ± 8.64% humidity). Power-related, physiological, psychomotor, blood, and electrolyte variables were recorded. Results showed that (1) players achieved higher peak power (max 1607,46 ± 192,70 [W] - 3rd rep), needed less time to peak power (min 0,95 ± 0,27 [s] - 3rd rep), and had a higher fatigue slope (max 218,67 ± 59,64 [W/sek] - 7th rep) in QSC than in NC (in each repetition of study protocol); (2) between the 1st repetition and subsequent repetitions a number of significants in among physiological, blood-related, and electrolyte variables were noted, but their direction was similar in both simulated conditions (e.g. V'O2/kg 37,59 ± 3,96 vs 37,95 ± 3,17 [ml/min/kg] - 3rd rep, LAC 13,16 ± 2,61 vs 14,18 ± 3,13 [mg/dl] - 10th rep or K 4,54 ± 0,29 vs 4,79 ± 0,36 [mmol/l] - 2nd rep when compare QCS and NC respectively); (3) an 8°C of temperature difference between the climatic conditions did not significantly affect the soccer players' physical and physiological responses in RME. The study results can be used in the design of training programs aimed to increase players' physiological adaptations by simulating soccer-specific conditions of play in terms of anaerobic capacity, in particular, repetitive maximal efforts. These findings will be useful during the upcoming 2022 World Cup in Qatar and in locations where high ambient temperatures are customary.
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Affiliation(s)
- Paweł Chmura
- Department of Team Games, Wrocław University of Health and Sport Sciences, Wrocław, Poland
| | - Hongyou Liu
- School of Physical Education & Sports Science, Guangzhou Higher Education Mega Centre, South China Normal University, Guangzhou, China
| | - Marcin Andrzejewski
- Department of Methodology of Recreation, Poznań University of Physical Education, Poznań, Poland
- * E-mail:
| | - Antonio Tessitore
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Jerzy Sadowski
- Department of Sport Science, Faculty of Physical Education and Health, Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - Jan Chmura
- Department of Human Motor Skills, Wrocław University of Health and Sport Sciences, Wrocław, Poland
| | - Andrzej Rokita
- Department of Team Games, Wrocław University of Health and Sport Sciences, Wrocław, Poland
| | - Wojciech Tański
- 4th Military Teaching Hospital with Clinic, Independent Public Health Care Centre in Wrocław, Wrocław, Poland
| | - Leszek Cicirko
- Department of Physical Education and Sport, Faculty of Physical Education and Health in Biała Podlaska, Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - Marek Konefał
- Department of Human Motor Skills, Wrocław University of Health and Sport Sciences, Wrocław, Poland
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Comparative Analysis of Cardiorespiratory Parameters of Basketball and Soccer Players Using Principal Component Analysis. JOURNAL OF BIOMIMETICS BIOMATERIALS AND BIOMEDICAL ENGINEERING 2022. [DOI: 10.4028/p-840n5x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Principal component analysis (PCA) is a statistical technique used to identify variations in multivariate data obtained during the performance of the maximum ergospirometry test (MET). To use the PCA to compare the coefficients of change of the principal component (PC1) using the eigenvalue and the maximum values of the cardiorespiratory variables obtained in the athletes' in MET. 10 soccer players and 10 basketball players, all male, were evaluated. The PCA analyzed the values of the variables during the performance of the MET. The PC1 for each variable was calculated, and the eigenvalue was generated, representing the coefficients of variation of the PC1 of all variables. In the quantitative assessment (maximum values), a higher VO2max (3.93±0.62 vs. 3.41±0.37 l·min-1) was observed in basketball players compared to soccer players (p<0.05). The qualitative evaluation using PC1 of cardiorespiratory parameters (heart rate, minute volume, O2 consumption, CO2 production, expired fraction of O2 and expired fraction CO2) was observed as an eigenvalue (6.50±0.27 vs. 6.22±0.19) high for basketball players compared to soccer players (p<0.05). It is concluded that the basketball players showed more significant variability in their cardiorespiratory variables during the performance of the MET and higher VO2max at the end of the MET. These findings indicate that basketball players were less efficient in buffering the ventilatory acidosis observed during the MET. The results of this study highlight the importance of making complex assessments of the cardiorespiratory system, providing qualitative information to complement the quantitative data.
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Pérez-Gosalvez A, García-Muro San José F, Carrión-Otero O, Pérez-Fernández T, Fernández-Rosa L. Blood Pressure and Heart Rate Responses to an Isokinetic Testing Protocol in Professional Soccer Players. J Clin Med 2022; 11:1539. [PMID: 35329865 PMCID: PMC8952197 DOI: 10.3390/jcm11061539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 02/01/2023] Open
Abstract
The aim of this study was to determine blood pressure (BP) and heart rate (HR) responses triggered during an isokinetic testing protocol in professional soccer players and compare cardiovascular parameters at completion of this isokinetic protocol with those during a treadmill test. Using purposive sampling, 63 professional soccer players were recruited. Cardiovascular responses were measured noninvasively during a bilateral testing protocol of knee flexion and extension. Treadmill ergospirometry following an incremental speed protocol was performed to analyze the same cardiovascular parameters at rest and at completion of this test. There were significant differences in diastolic blood pressure (DBP) and HR according to field position. The parameters presented high homogeneity at both competitive levels. Systolic blood pressure, mean arterial pressure, HR, and rate pressure product at completion of the treadmill test were significantly higher than those at completion of the isokinetic protocol. Intermittent isokinetic testing protocol of the knee triggers normal and safe BP and HR responses in healthy professional soccer players. The HR of the defenders was higher than those of the forwards and midfielders but was independent of the competitive level. The values of cardiovascular parameters at isokinetic protocol completion were lower than those during the treadmill test.
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Affiliation(s)
| | - Francisco García-Muro San José
- Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, Boadilla, 28660 Madrid, Spain; (A.P.-G.); (O.C.-O.); (T.P.-F.); (L.F.-R.)
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Ng HL, Trefz J, Schönfelder M, Wackerhage H. Effects of a taped filter mask on peak power, perceived breathlessness, heart rate, blood lactate and oxygen saturation during a graded exercise test in young healthy adults: a randomized controlled trial. BMC Sports Sci Med Rehabil 2022; 14:19. [PMID: 35130956 PMCID: PMC8819930 DOI: 10.1186/s13102-022-00410-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 01/27/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND Face masks are an effective, non-pharmacological strategy to reduce the transmission of Severe Acute Respiratory Syndrome Coronavirus-2 and other pathogens. However, it is a challenge to keep masks sealed during exercise, as ventilation can increase from 5 to 10 L/min at rest to up to 200 L/min so that masks may be blown away from the face. To reduce leakage e.g. during exercise, a face mask was developed that is taped onto the face. The aim of this study was to investigate during a graded exercise test the effect of a taped filter mask on the perception of breathlessness, heart rate, blood lactate concentration, and oxygen saturation when compared to a surgical mask and no mask. METHODS Eight healthy trained participants (4 females), aged 24.5 ± 3.3 years performed graded exercise test until volitional exhaustion under three conditions: (1) No mask/control, (2) surgical mask or (3) taped filter mask. During these tests, we measured perception of breathlessness, heart rate, blood lactate concentration and peripheral oxygen saturation and analysed the resultant data with one or two-way repeated measures ANOVAs. We also used a questionnaire to evaluate mask comfort and analysed the data with paired t-tests. RESULTS When compared to wearing no mask, maximal workload was significantly reduced with a taped filter face mask by 12 ± 6% (p < 0.001) and with a surgical mask by 3 ± 6% (p > 0.05). Moreover, subjects perceive the sensation of "severe breathlessness" at a 12 ± 9% lower workload (p = 0.012) with a taped face mask, and 7 ± 13% lower workload with a surgical mask (p > 0.05) when compared to wearing no mask. Oxygen saturation at 65% of the maximal workload is 1.5% lower (p = 0.018) with a taped mask than no mask. Heart rate and blood lactate concentration are not significantly different in-between no mask, surgical mask and taped mask at any workload. When compared to wearing a surgical mask, wearing a taped filter face mask has a significantly better wearing comfort (p = 0.038), feels better on the skin (p = 0.004), there is a lower sensation of moisture (p = 0.026) and wearers perceive that less heat is generated (p = 0.021). We found no sex/gender differences for any of the measured parameters. CONCLUSIONS A taped mask is well tolerated during light and moderate exercise intensity but reduces maximal exercise capacity.
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Affiliation(s)
- Hoi Lam Ng
- Exercise Biology Group, Department of Sport and Health Science, Technical University of Munich, Connollystraße 32, 80809, Munich, Germany
| | - Johannes Trefz
- Exercise Biology Group, Department of Sport and Health Science, Technical University of Munich, Connollystraße 32, 80809, Munich, Germany
| | - Martin Schönfelder
- Exercise Biology Group, Department of Sport and Health Science, Technical University of Munich, Connollystraße 32, 80809, Munich, Germany
| | - Henning Wackerhage
- Exercise Biology Group, Department of Sport and Health Science, Technical University of Munich, Connollystraße 32, 80809, Munich, Germany.
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Di Paco A, Mazzoleni S, Vitacca M, Comini L, Ambrosino N. Lung function and ventilatory response to exercise in asymptomatic elite soccer players positive for COVID-19. Pulmonology 2021; 28:148-151. [PMID: 34876375 PMCID: PMC8598945 DOI: 10.1016/j.pulmoe.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 11/30/2022] Open
Affiliation(s)
- A Di Paco
- Lung Unit, Casa di Cura San Rossore, Pisa, Italy
| | - S Mazzoleni
- Department of Electrical and Information Engineering, Politecnico di Bari, Bari, Italy
| | - M Vitacca
- Respiratory Rehabilitation of the Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy.
| | - L Comini
- Scientific Direction of the Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - N Ambrosino
- Respiratory Rehabilitation of the Institute of Montescano, Istituti Clinici Scientifici Maugeri IRCCS, Montescano, Pavia, Italy
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Wedel J, Steinmann P, Štrakl M, Hriberšek M, Ravnik J. Risk Assessment of Infection by Airborne Droplets and Aerosols at Different Levels of Cardiovascular Activity. ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING : STATE OF THE ART REVIEWS 2021; 28:4297-4316. [PMID: 34226815 PMCID: PMC8246442 DOI: 10.1007/s11831-021-09613-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 06/05/2021] [Indexed: 05/09/2023]
Abstract
Since end of 2019 the COVID-19 pandemic, caused by the SARS-CoV-2 virus, is threatening humanity. Despite the fact that various scientists across the globe try to shed a light on this new respiratory disease, it is not yet fully understood. Unlike many studies on the geographical spread of the pandemic, including the study of external transmission routes, this work focuses on droplet and aerosol transport and their deposition inside the human airways. For this purpose, a digital replica of the human airways is used and particle transport under various levels of cardiovascular activity in enclosed spaces is studied by means of computational fluid dynamics. The influence of the room size, where the activity takes place, and the aerosol concentration is studied. The contribution aims to assess the risk of various levels of exercising while inhaling infectious pathogens to gain further insights in the deposition behavior of aerosols in the human airways. The size distribution of the expiratory droplets or aerosols plays a crucial role for the disease onset and progression. As the size of the expiratory droplets and aerosols differs for various exhaling scenarios, reported experimental particle size distributions are taken into account when setting up the environmental conditions. To model the aerosol deposition we employ OpenFOAM by using an Euler-Lagrangian frame including Reynolds-Averaged Navier-Stokes resolved turbulent flow. Within this study, the effects of different exercise levels and thus breathing rates as well as particle size distributions and room sizes are investigated to enable new insights into the local particle deposition in the human airway and virus loads. A general observation can be made that exercising at higher levels of activity is increasing the risk to develop a severe cause of the COVID-19 disease due to the increased aerosolized volume that reaches into the lower airways, thus the knowledge of the inhaled particle dynamics in the human airways at various exercising levels provides valuable information for infection control strategies.
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Affiliation(s)
- Jana Wedel
- Institute of Applied Mechanics, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Paul Steinmann
- Institute of Applied Mechanics, University of Erlangen-Nuremberg, Erlangen, Germany
- Glasgow Computational Engineering Center, University of Glasgow, Glasgow, UK
| | - Mitja Štrakl
- Faculty of Mechanical Engineering, University of Maribor, Maribor, Slovenia
| | - Matjaž Hriberšek
- Faculty of Mechanical Engineering, University of Maribor, Maribor, Slovenia
| | - Jure Ravnik
- Faculty of Mechanical Engineering, University of Maribor, Maribor, Slovenia
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Cambios en la respuesta ventilatoria al esfuerzo en deportistas entrenados: efectos beneficiosos sobre la fisiología respiratoria más allá del rendimiento cardiovascular. Arch Bronconeumol 2017; 53:237-244. [DOI: 10.1016/j.arbres.2016.11.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/04/2016] [Accepted: 11/14/2016] [Indexed: 11/24/2022]
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