AEROBIC FITNESS INFLUENCES THE RESPONSE OF MAXIMAL OXYGEN-UPTAKE AND LACTATE THRESHOLD IN ACUTE HYPOBARIC HYPOXIA

被引:62
作者
KOISTINEN, P
TAKALA, T
MARTIKKALA, T
LEPPALUOTO, J
机构
[1] DEACONESS INST,DEPT SPORTS MED,OULU,FINLAND
[2] UNIV OULU,DEPT PHYSIOL,OULU,FINLAND
关键词
VO(2)MAX; LACTATE THRESHOLD; HYPOXIA; EXERCISE;
D O I
10.1055/s-2007-972968
中图分类号
G8 [体育];
学科分类号
04 [教育学]; 0403 [体育学];
摘要
We studied 12 highly trained athletes, 6 male ice-hockey players and 6 cross-country skiers (2 females, 4 males). All of them participated in a maximal electrically braked bicycle ergometer test in a hypobaric chamber at the simulated altitude of 3000 m (520 mmHg) and in normobaric conditions two days apart in random order. The maximal oxygen uptake was 57.4 +/- 7.1 (SD) ml/kg/min in normobaria (VO(2max)norm) and 46.6 +/- 4.9 (SD) ml/kg/min in hypobaric hypoxia (VO(2max)hyp). The decrease in maximal oxygen uptake (Delta VO2max) at the simulated altitude of 3000 m correlated significantly (p < 0.05, r = 0.61) to the maximal oxygen uptake in normobaric conditions VO(2max)norm). The lactate threshold was 43.5 +/- 6.4 (SD) ml/kg/min in normobaria (VO(2LT)norm) and 36.5 +/- 4.2 (SD) ml/kg/min in hypobaric hypoxia (VO(2LT)hyp) The decrement (Delta VO(2)LT) of lactate threshold in hypoxia correlated significantly (p < 0.01, r = 0.68) with the lactate threshold in normobaric conditions (VO(LT)norm). Thus we observed the largest reduction of both maximal oxygen uptake and lactate threshold during exercise at hypobaric hypoxia in the most fit athletes.
引用
收藏
页码:78 / 81
页数:4
相关论文
共 25 条
[1]
DECREASED EXERCISE MUSCLE LACTATE RELEASE AFTER HIGH-ALTITUDE ACCLIMATIZATION [J].
BENDER, PR ;
GROVES, BM ;
MCCULLOUGH, RE ;
MCCULLOUGH, RG ;
TRAD, L ;
YOUNG, AJ ;
CYMERMAN, A ;
REEVES, JT .
JOURNAL OF APPLIED PHYSIOLOGY, 1989, 67 (04) :1456-1462
[2]
OXYGEN-CONSUMPTION, LACTATE ACCUMULATION, AND SYMPATHETIC RESPONSE DURING PROLONGED EXERCISE UNDER HYPOXIA [J].
BOUISSOU, P ;
GUEZENNEC, CY ;
DEFER, G ;
PESQUIES, P .
INTERNATIONAL JOURNAL OF SPORTS MEDICINE, 1987, 8 (04) :266-269
[3]
DECREASED RELIANCE ON LACTATE DURING EXERCISE AFTER ACCLIMATIZATION TO 4,300M [J].
BROOKS, GA ;
BUTTERFIELD, GE ;
WOLFE, RR ;
GROVES, BM ;
MAZZEO, RS ;
SUTTON, JR ;
WOLFEL, EE ;
REEVES, JT .
JOURNAL OF APPLIED PHYSIOLOGY, 1991, 71 (01) :333-341
[4]
INCREASED DEPENDENCE ON BLOOD-GLUCOSE AFTER ACCLIMATIZATION TO 4,300 M [J].
BROOKS, GA ;
BUTTERFIELD, GE ;
WOLFE, RR ;
GROVES, BM ;
MAZZEO, RS ;
SUTTON, JR ;
WOLFEL, EE ;
REEVES, JT .
JOURNAL OF APPLIED PHYSIOLOGY, 1991, 70 (02) :919-927
[5]
ANEMIA CAUSES A RELATIVE DECREASE IN BLOOD LACTATE CONCENTRATION DURING EXERCISE [J].
CELSING, F ;
EKBLOM, B .
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 1986, 55 (01) :74-78
[6]
ANAEROBIC THRESHOLD AND MAXIMAL AEROBIC POWER FOR 3 MODES OF EXERCISE [J].
DAVIS, JA ;
VODAK, P ;
WILMORE, JH ;
VODAK, J ;
KURTZ, P .
JOURNAL OF APPLIED PHYSIOLOGY, 1976, 41 (04) :544-550
[7]
EXERCISE-INDUCED ARTERIAL HYPOXEMIA IN HEALTHY-HUMAN SUBJECTS AT SEA-LEVEL [J].
DEMPSEY, JA ;
HANSON, PG ;
HENDERSON, KS .
JOURNAL OF PHYSIOLOGY-LONDON, 1984, 355 (OCT) :161-175
[8]
DEMPSEY JA, 1986, MED SCI SPORT EXER, V18, P143
[9]
LACTATE ACCUMULATION DURING INCREMENTAL EXERCISE WITH VARIED INSPIRED OXYGEN FRACTIONS [J].
HOGAN, MC ;
COX, RH ;
WELCH, HG .
JOURNAL OF APPLIED PHYSIOLOGY, 1983, 55 (04) :1134-1140
[10]
LINEAR RELATIONSHIP BETWEEN VO2 MAX AND VO2 MAX DECREMENT DURING EXPOSURE TO ACUTE-HYPOXIA [J].
LAWLER, J ;
POWERS, SK ;
THOMPSON, D .
JOURNAL OF APPLIED PHYSIOLOGY, 1988, 64 (04) :1486-1492