Effect of Six-Minute Walk Test and Incremental Exercise on Inspiratory Capacity, Ventilatory Constraints, Breathlessness and Exercise Performance in Sedentary Male Smokers without Airway Obstruction

Wassim Melliti, Rim Kammoun, Donies Masmoudi, Said Ahmaidi, Kaouthar Masmoudi, Fawaz Alassery, Habib Hamam and Mehdi Chlif
Additional contact information
Wassim Melliti: Research Unit: Education, Motor Skills, Sport and Health (EM2S), UR15JS01, High Institute of Sport and Physical Education, University of Sfax, Sfax BP 3000, Tunisia
Rim Kammoun: Physiology and Functional Exploration Service, University Hospital Habib Bourguiba, Sfax 3000, Tunisia
Donies Masmoudi: Physiology and Functional Exploration Service, University Hospital Habib Bourguiba, Sfax 3000, Tunisia
Said Ahmaidi: EA 3300 “APS and Motor Patterns: Adaptations-Rehabilitation”, Picardie Jules Verne University, 80025 Amiens, France
Kaouthar Masmoudi: Physiology and Functional Exploration Service, University Hospital Habib Bourguiba, Sfax 3000, Tunisia
Fawaz Alassery: Department of Computer Engineering, College of Computers and Information Technology, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Habib Hamam: Department of Electrical Engineering, Faculty of Engineering, Moncton University, Moncton, NB E1A 3E9, Canada
Mehdi Chlif: EA 3300 “APS and Motor Patterns: Adaptations-Rehabilitation”, Picardie Jules Verne University, 80025 Amiens, France

IJERPH, 2021, vol. 18, issue 23, 1-15

Abstract: We investigated physiological responses and exercise capacity in sedentary young smokers during sub-maximal and maximal test and its impact on dyspnea and exercise intolerance. Fifty sedentary male smokers and non-smokers (age: 24 ± 1 years., weight: 71 ± 9 kg, height: 177.3 ± 4.8 cm, body mass index: 22.6 ± 2.5 kg/m 2 ) underwent two visits with pulmonary function tests, breathing pattern, and inspiratory capacity measurement at rest and during sub-maximal and maximal exercise. Smokers show reduced exercise capacity during six minutes walk test (6-MWT) with decreased walked distance ( p < 0.001) and inspiratory capacity ( p < 0.05). During cardiopulmonary exercise test (CPET), smokers had higher minute ventilation VE for a given submaximal intensity ( p < 0.05) and lower minute ventilation at maximal exercise ( p < 0.001). End expiratory lung volume was significantly lower in sedentary smokers at rest ( p < 0.05), at ventilatory threshold during exercise ( p < 0.05), but not during peak exercise. End inspiratory lung volume was significantly lower in smokers at rest ( p < 0.05) and ventilatory threshold ( p < 0.05). Cigarette smoking alters lung function during submaximal and maximal exercise. This alteration is manifested by the development of dynamic hyperinflation contributing to exercise capacity limitation.

Keywords: smoking; ventilatory efficiency; mechanical constraints; breathlessness; inspiratory capacity; incremental exercise (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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