The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young Adults
<i>Background and Objectives:</i> Limited research has evaluated the effects of acute exercise on cognition under different conditions of inspired oxygenation. Thus, the purpose of this study was to examine the effects of high-intensity interval exercise (HIE) under normoxia (inspired fr...
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MDPI AG
2019-02-01
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| Series: | Medicina |
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| Online Access: | https://www.mdpi.com/1010-660X/55/2/43 |
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| author | Shengyan Sun Paul D. Loprinzi Hongwei Guan Liye Zou Zhaowei Kong Yang Hu Qingde Shi Jinlei Nie |
| author_facet | Shengyan Sun Paul D. Loprinzi Hongwei Guan Liye Zou Zhaowei Kong Yang Hu Qingde Shi Jinlei Nie |
| author_sort | Shengyan Sun |
| collection | DOAJ |
| description | <i>Background and Objectives:</i> Limited research has evaluated the effects of acute exercise on cognition under different conditions of inspired oxygenation. Thus, the purpose of this study was to examine the effects of high-intensity interval exercise (HIE) under normoxia (inspired fraction of oxygen (FIO<sub>2</sub>): 0.209) and moderate hypoxia (FIO<sub>2</sub>: 0.154) on cognitive function. <i>Design:</i> A single-blinded cross-over design was used to observe the main effects of exercise and oxygen level, and interaction effects on cognitive task performance. <i>Methods:</i> Twenty inactive adults (10 males and 10 females, 19⁻27 years old) performed a cognitive task (i.e., the Go/No-Go task) before and immediately after an acute bout of HIE under normoxic and hypoxic conditions. The HIE comprised 10 repetitions of 6 s high-intensity cycling against 7.5% body weight interspersed with 30 s passive recovery. Heart rate, peripheral oxygen saturation (SpO<sub>2</sub>) and rating of perceived exertion were monitored. <i>Results:</i> The acute bout of HIE did not affect the reaction time (<i>p</i> = 0.204, η<sup>2</sup> = 0.083) but the accuracy rate decreased significantly after HIE under both normoxic and hypoxic conditions (<i>p</i> = 0.001, η<sup>2</sup> = 0.467). Moreover, moderate hypoxia had no influence either on reaction time (<i>p</i> = 0.782, η<sup>2</sup> = 0.004) or response accuracy (<i>p</i> = 0.972, η<sup>2</sup> < 0.001). <i>Conclusions:</i> These results indicate that an acute session of HIE may impair response accuracy immediately post-HIE, without sacrificing reaction time. Meanwhile moderate hypoxia was found to have no adverse effect on cognitive function in inactive young adults, at least in the present study. |
| first_indexed | 2024-03-12T09:35:27Z |
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| language | English |
| last_indexed | 2024-03-12T09:35:27Z |
| publishDate | 2019-02-01 |
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| spelling | doaj.art-c63f53c5e7e34a7cbf613564cf415d542023-09-02T13:45:57ZengMDPI AGMedicina1010-660X2019-02-015524310.3390/medicina55020043medicina55020043The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young AdultsShengyan Sun0Paul D. Loprinzi1Hongwei Guan2Liye Zou3Zhaowei Kong4Yang Hu5Qingde Shi6Jinlei Nie7Faculty of Education, University of Macau, Macao, ChinaDepartment of Health, Exercise Science and Recreation Management, School of Applied Sciences, The University of Mississippi, Oxford, MS 38677, USADepartment of Health Promotion and Physical Education, School of Health Sciences and Human Performance, Ithaca College, Ithaca, NY 14850, USALifestyle (Mind-Body Movement) Research Center, College of Sports Science, Shenzhen University, Shenzhen 518060, ChinaFaculty of Education, University of Macau, Macao, ChinaSports Science Research Center, Beijing Sport University, Beijing 100084, ChinaSchool of Physical Education and Sports, Macao Polytechnic Institute, Macao, ChinaSchool of Physical Education and Sports, Macao Polytechnic Institute, Macao, China<i>Background and Objectives:</i> Limited research has evaluated the effects of acute exercise on cognition under different conditions of inspired oxygenation. Thus, the purpose of this study was to examine the effects of high-intensity interval exercise (HIE) under normoxia (inspired fraction of oxygen (FIO<sub>2</sub>): 0.209) and moderate hypoxia (FIO<sub>2</sub>: 0.154) on cognitive function. <i>Design:</i> A single-blinded cross-over design was used to observe the main effects of exercise and oxygen level, and interaction effects on cognitive task performance. <i>Methods:</i> Twenty inactive adults (10 males and 10 females, 19⁻27 years old) performed a cognitive task (i.e., the Go/No-Go task) before and immediately after an acute bout of HIE under normoxic and hypoxic conditions. The HIE comprised 10 repetitions of 6 s high-intensity cycling against 7.5% body weight interspersed with 30 s passive recovery. Heart rate, peripheral oxygen saturation (SpO<sub>2</sub>) and rating of perceived exertion were monitored. <i>Results:</i> The acute bout of HIE did not affect the reaction time (<i>p</i> = 0.204, η<sup>2</sup> = 0.083) but the accuracy rate decreased significantly after HIE under both normoxic and hypoxic conditions (<i>p</i> = 0.001, η<sup>2</sup> = 0.467). Moreover, moderate hypoxia had no influence either on reaction time (<i>p</i> = 0.782, η<sup>2</sup> = 0.004) or response accuracy (<i>p</i> = 0.972, η<sup>2</sup> < 0.001). <i>Conclusions:</i> These results indicate that an acute session of HIE may impair response accuracy immediately post-HIE, without sacrificing reaction time. Meanwhile moderate hypoxia was found to have no adverse effect on cognitive function in inactive young adults, at least in the present study.https://www.mdpi.com/1010-660X/55/2/43cognitive functionGo/No-Go taskreaction timeresponse accuracyperipheral oxygen saturation |
| spellingShingle | Shengyan Sun Paul D. Loprinzi Hongwei Guan Liye Zou Zhaowei Kong Yang Hu Qingde Shi Jinlei Nie The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young Adults Medicina cognitive function Go/No-Go task reaction time response accuracy peripheral oxygen saturation |
| title | The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young Adults |
| title_full | The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young Adults |
| title_fullStr | The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young Adults |
| title_full_unstemmed | The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young Adults |
| title_short | The Effects of High-Intensity Interval Exercise and Hypoxia on Cognition in Sedentary Young Adults |
| title_sort | effects of high intensity interval exercise and hypoxia on cognition in sedentary young adults |
| topic | cognitive function Go/No-Go task reaction time response accuracy peripheral oxygen saturation |
| url | https://www.mdpi.com/1010-660X/55/2/43 |
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