Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults
Khalid S Aljaloud Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi ArabiaCorrespondence: Khalid S Aljaloud, Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, P O Box 2454, R...
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Dove Medical Press
2024-12-01
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| Series: | Open Access Journal of Sports Medicine |
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| Online Access: | https://www.dovepress.com/short-term-intermittent-normobaric-hypoxia-combined-with-light-exercis-peer-reviewed-fulltext-article-OAJSM |
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| author | Aljaloud KS |
| author_facet | Aljaloud KS |
| author_sort | Aljaloud KS |
| collection | DOAJ |
| description | Khalid S Aljaloud Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi ArabiaCorrespondence: Khalid S Aljaloud, Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, P O Box 2454, Riyadh, Saudi Arabia, Tel +966-8063100, Email khaljaloud@ksu.edu.saBackground: Un-acclimatized individuals may experience acute altitude illness. Thus, the current study investigated the impact of short-term intermittent normobaric hypoxia (NH) combined with light exercise on the acclimatization of cardiorespiratory function to altitude in inactive adults.Methods: This quasi-experimental study recruited 10 inactive university students (age: 26.3 ± 2.53 years). All participants were instructed to perform light exercise while exposed to intermittent NH (15%) (2 h/d) for 2 weeks continuously. The heart rate (HR), relative oxygen consumption (VO2 mL/kg/min), minute ventilation (VE), VO2/HR, and respiratory frequency (RF) were measured.Results: Results illustrated a significant improvement in participants’ cardiorespiratory functions by 10 days after exposure to NH, as compared to day 1 of exposure, based on their HR, RF, and VE responses at rest and HR, RF, VE, VO2, VO2/kg, and VO2/HR during light exercise. Resting-state values had returned to the pre-NH exposure levels after 10 days of intermittent NH exposure. Furthermore, values measured during light exercise were significantly decreased on days 10 and 14 as compared to day 1 of NH exposure.Conclusion: This study concluded that as few as 10 days of exposure to intermittent NH (pO2 = 15%) combined with light exercise may improve the acclimation to NH of 15% pO2 in inactive adults.Keywords: altitude, acclamation, oxygen consumption, health-related fitness, training, sedentary |
| format | Article |
| id | doaj-art-5f7ab33cc45c4ee1ae9630628b1864ed |
| institution | Kabale University |
| issn | 1179-1543 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | Open Access Journal of Sports Medicine |
| spelling | doaj-art-5f7ab33cc45c4ee1ae9630628b1864ed2024-12-17T17:00:25ZengDove Medical PressOpen Access Journal of Sports Medicine1179-15432024-12-01Volume 1522923798443Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive AdultsAljaloud KSKhalid S Aljaloud Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi ArabiaCorrespondence: Khalid S Aljaloud, Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, P O Box 2454, Riyadh, Saudi Arabia, Tel +966-8063100, Email khaljaloud@ksu.edu.saBackground: Un-acclimatized individuals may experience acute altitude illness. Thus, the current study investigated the impact of short-term intermittent normobaric hypoxia (NH) combined with light exercise on the acclimatization of cardiorespiratory function to altitude in inactive adults.Methods: This quasi-experimental study recruited 10 inactive university students (age: 26.3 ± 2.53 years). All participants were instructed to perform light exercise while exposed to intermittent NH (15%) (2 h/d) for 2 weeks continuously. The heart rate (HR), relative oxygen consumption (VO2 mL/kg/min), minute ventilation (VE), VO2/HR, and respiratory frequency (RF) were measured.Results: Results illustrated a significant improvement in participants’ cardiorespiratory functions by 10 days after exposure to NH, as compared to day 1 of exposure, based on their HR, RF, and VE responses at rest and HR, RF, VE, VO2, VO2/kg, and VO2/HR during light exercise. Resting-state values had returned to the pre-NH exposure levels after 10 days of intermittent NH exposure. Furthermore, values measured during light exercise were significantly decreased on days 10 and 14 as compared to day 1 of NH exposure.Conclusion: This study concluded that as few as 10 days of exposure to intermittent NH (pO2 = 15%) combined with light exercise may improve the acclimation to NH of 15% pO2 in inactive adults.Keywords: altitude, acclamation, oxygen consumption, health-related fitness, training, sedentaryhttps://www.dovepress.com/short-term-intermittent-normobaric-hypoxia-combined-with-light-exercis-peer-reviewed-fulltext-article-OAJSMaltitudeacclamationoxygen consumptionhealth-related fitnesstrainingsedentary. |
| spellingShingle | Aljaloud KS Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults Open Access Journal of Sports Medicine altitude acclamation oxygen consumption health-related fitness training sedentary. |
| title | Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults |
| title_full | Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults |
| title_fullStr | Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults |
| title_full_unstemmed | Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults |
| title_short | Short-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults |
| title_sort | short term intermittent normobaric hypoxia combined with light exercise improves acclimatization of cardiorespiratory function in inactive adults |
| topic | altitude acclamation oxygen consumption health-related fitness training sedentary. |
| url | https://www.dovepress.com/short-term-intermittent-normobaric-hypoxia-combined-with-light-exercis-peer-reviewed-fulltext-article-OAJSM |
| work_keys_str_mv | AT aljaloudks shorttermintermittentnormobarichypoxiacombinedwithlightexerciseimprovesacclimatizationofcardiorespiratoryfunctionininactiveadults |