Effect of chronic hypoxia and socioeconomic status on VO2max and anaerobic power of Bolivian boys
| Autor: | P. Obert, M. Bedu, N. Fellmann, G. Falgairette, B. Beaune, A. Quintela, E. Van Praagh, H. Spielvogel, H. Kemper, B. Post, al. et |
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| Rok vydání: | 1993 |
| Předmět: |
Male
Bolivia Physiology Nutritional Status Anthropometric parameters Hemoglobins Oxygen Consumption Animal science Heart Rate Physiology (medical) Humans Anaerobiosis Child Hypoxia Exercise Exercise tolerance test Wingate test Chemistry Altitude Body Weight VO2 max Nutritional status Effects of high altitude on humans Chronic hypoxia Body Height Hematocrit Socioeconomic Factors Anaerobic exercise |
| Zdroj: | Journal of Applied Physiology. 74:888-896 |
| ISSN: | 1522-1601 8750-7587 |
| DOI: | 10.1152/jappl.1993.74.2.888 |
| Popis: | The aim of this work was to analyze the effects of altitude and socioeconomic and nutritional status on maximal oxygen uptake (VO2max) and anaerobic power (P) in 11-yr-old Bolivian boys. At both high (HA) (3,600 m) and low (LA) (420 m) altitudes, the boys were divided into high (HA1, n = 23, LA1, n = 48) and low (HA2, n = 44, LA2, n = 30) socioeconomic levels. Anthropometric characteristics, VO2max, and P [maximal P (Pmax) during a force-velocity test and mean P (P) during a 30-s Wingate test] were measured. Results showed that 1) anthropometric parameters were not different between HA1 and LA1 and HA2 and LA2 boys, but HA2 and LA2 boys were two years behind HA1 and LA1 boys in development; 2) VO2max was not different in boys from the same altitude, but at HA VO2max was 10% lower than at LA (HA1 = 37.2 +/- 5.6, HA2 = 38.9 +/- 6.4, LA1 = 42.5 +/- 5.8, LA2 = 42.5 +/- 5.3 ml.min-1 x kg-1 body wt); and 3) Pmax and P were higher in well-nourished than in undernourished boys, but there was no difference in Pmax and P between HA1 and LA1 and HA2 and LA2 boys (HA1 = 6.8 +/- 1.0, HA2 = 5.5 +/- 0.8, LA1 = 7.1 +/- 1.0, LA2 = 5.3 +/- 0.9 W/kg for Pmax; HA1 = 5.2 +/- 0.8, HA2 = 4.5 +/- 0.9, LA1 = 5.2 +/- 0.7, LA2 = 4.0 +/- 0.6 W/kg for P).(ABSTRACT TRUNCATED AT 250 WORDS) |
| Databáze: | OpenAIRE |
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