1. Effect of long term high altitude exposure on cardiovascular autonomic adjustment during rest and post-exercise recovery
- Author
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Bijay Subedi, Dilip Thakur, Balkrishna Bhattarai, Rita Khadka, Bishnu Hari Paudel, and Prem Bhattarai
- Subjects
medicine.medical_specialty ,03 medical and health sciences ,0302 clinical medicine ,Altitude ,Rest (finance) ,Internal medicine ,Heart rate ,Post exercise ,parasitic diseases ,Medicine ,Heart rate variability ,030212 general & internal medicine ,Exercise ,Resting state fMRI ,business.industry ,Public Health, Environmental and Occupational Health ,Effects of high altitude on humans ,030210 environmental & occupational health ,Industrial medicine. Industrial hygiene ,RC963-969 ,Cardiology ,Public aspects of medicine ,RA1-1270 ,business ,Recovery phase ,Research Article ,Highlanders - Abstract
Background Despite the successful adaptation to high altitude, some differences do occur due to long term exposure to the hypoxic environment. The effect of long term high altitude exposure on cardiac autonomic adjustment during basal and post-exercise recovery is less known. Thus we aimed to study the differences in basal cardiac autonomic adjustment and its response to exercise in highlanders and to compare it with lowlanders. Methods The study was conducted on 29 healthy highlander males who were born and brought up at altitude of 3000 m and above from the sea level, their cardiac autonomic adjustment was compared with age, sex, physical activity and ethnicity-matched 29 healthy lowlanders using Heart Rate Variability (HRV) during rest and recovery from sub-maximal exercise (3 m step test). Intergroup comparison between the highlanders and lowlanders and intragroup comparison between the rest and the postexercise recovery conditions were done. Results Resting heart rate and HRV during rest was comparable between the groups. However, heart rate recovery after 3 min step test was faster in highlanders (p
- Published
- 2018