BACKGROUND: The practice of physical exercise in polluted areas could lead to adverse health effects that may contribute to the incidence and/or worsening of respiratory and cardiovascular diseases and some types of cancer. METHODS: Male recreational cyclists performed tests in a manner randomized crossover in two environmental conditions: low (environmental noise exposure) and high ultrafine particle concentration. For each trial, oxygen consumption (VO� 2), carbon dioxide production (VĊO2), respiratory frequency (Rf), tidal volume (Vt), pulmonary ventilation (VE�), and mechanical workload (WL) were measured. Gross efficiency (GE) was determined using the ratio between mechanical power output and metabolic power input. Repeated-measures ANOVA was applied to evaluate differences (P < 0.05) between physiological and mechanical parameters and compare oxygen consumption trends in the two scenarios. RESULTS: HR, Rf, and VE values do not show any significant difference. On the contrary, VO� 2peak increased (P < 0.05) under high exposure (41.6 ± 4.31 mL kg–1 min–1 ), during high-intensity exercise, compared to a low exposure (38.4 ± 4.05 mL kg–1 min–1 ). VO� 2 and GE show differences (p < 0.05) between low and high ultrafine particle concentration conditions during exercise above 80% WLpeak. CONCLUSIONS: Present data suggest that high airborne UFPs levels impair recreational cyclists' gross efficiency

Airborne Ultrafine Particle and Acute Physiological Effects during Maximal Aerobic Power Test / Rodio, A.; Misiti, F.; Zagaglia, A.; Stabile, L.; Buonanno, G.; Fattorini, L.. - In: AEROSOL AND AIR QUALITY RESEARCH. - ISSN 2071-1409. - 22:7(2022). [10.4209/aaqr.220029]

Airborne Ultrafine Particle and Acute Physiological Effects during Maximal Aerobic Power Test

Rodio A.;Stabile L.;Fattorini L.
Conceptualization
2022

Abstract

BACKGROUND: The practice of physical exercise in polluted areas could lead to adverse health effects that may contribute to the incidence and/or worsening of respiratory and cardiovascular diseases and some types of cancer. METHODS: Male recreational cyclists performed tests in a manner randomized crossover in two environmental conditions: low (environmental noise exposure) and high ultrafine particle concentration. For each trial, oxygen consumption (VO� 2), carbon dioxide production (VĊO2), respiratory frequency (Rf), tidal volume (Vt), pulmonary ventilation (VE�), and mechanical workload (WL) were measured. Gross efficiency (GE) was determined using the ratio between mechanical power output and metabolic power input. Repeated-measures ANOVA was applied to evaluate differences (P < 0.05) between physiological and mechanical parameters and compare oxygen consumption trends in the two scenarios. RESULTS: HR, Rf, and VE values do not show any significant difference. On the contrary, VO� 2peak increased (P < 0.05) under high exposure (41.6 ± 4.31 mL kg–1 min–1 ), during high-intensity exercise, compared to a low exposure (38.4 ± 4.05 mL kg–1 min–1 ). VO� 2 and GE show differences (p < 0.05) between low and high ultrafine particle concentration conditions during exercise above 80% WLpeak. CONCLUSIONS: Present data suggest that high airborne UFPs levels impair recreational cyclists' gross efficiency
2022
Particulate matter, Acute exercise, Oxygen consumption, Mechanical Efficiency, oxygen radicals
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Airborne Ultrafine Particle and Acute Physiological Effects during Maximal Aerobic Power Test / Rodio, A.; Misiti, F.; Zagaglia, A.; Stabile, L.; Buonanno, G.; Fattorini, L.. - In: AEROSOL AND AIR QUALITY RESEARCH. - ISSN 2071-1409. - 22:7(2022). [10.4209/aaqr.220029]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1697219
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