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Effectiveness of intermittent training in hypoxia combined with live high/train low
- Source :
- European journal of applied physiology. 110(2)
- Publication Year :
- 2010
-
Abstract
- Elite athletes often undertake altitude training to improve sea-level athletic performance, yet the optimal methodology has not been established. A combined approach of live high/train low plus train high (LH/TL+TH) may provide an additional training stimulus to enhance performance gains. Seventeen male and female middle-distance runners with maximal aerobic power (VO2max) of 65.5 +/- 7.3 mL kg(-1) min(-1) (mean +/- SD) trained on a treadmill in normobaric hypoxia for 3 weeks (2,200 m, 4 week(-1)). During this period, the train high (TH) group (n = 9) resided near sea-level (approximately 600 m) while the LH/TL+TH group (n = 8) stayed in normobaric hypoxia (3,000 m) for 14 hours day(-1). Changes in 3-km time trial performance and physiological measures including VO2max, running economy and haemoglobin mass (Hb(mass)) were assessed. The LH/TL+TH group substantially improved VO2max (4.8%; +/-2.8%, mean; +/-90% CL), Hb(mass) (3.6%; +/-2.4%) and 3-km time trial performance (-1.1%; +/-1.0%) immediately post-altitude. There was no substantial improvement in time trial performance 2 weeks later. The TH group substantially improved VO2max (2.2%; +/-1.8%), but had only trivial changes in Hb(mass) and 3-km time-trial performance. Compared with TH, combined LH/TL+TH substantially improved VO2max (2.6%; +/-3.2%), Hb(mass) (4.3%; +/-3.2%), and time trial performance (-0.9%; +/-1.4%) immediately post-altitude. LH/TL+TH elicited greater enhancements in physiological capacities compared with TH, however, the transfer of benefits to time-trial performance was more variable.
- Subjects :
- Male
medicine.medical_specialty
Time Factors
Physiology
Acclimatization
Running
Hemoglobins
Animal science
Time trial
Oxygen Consumption
Altitude training
Physiology (medical)
Task Performance and Analysis
Medicine
Humans
Orthopedics and Sports Medicine
Elite athletes
Muscle Strength
Treadmill
Hypoxia
Muscle, Skeletal
Normobaric hypoxia
business.industry
Altitude
Public Health, Environmental and Occupational Health
General Medicine
Hypoxia (medical)
Combined approach
Running economy
Physical therapy
Physical Endurance
Female
medicine.symptom
business
Subjects
Details
- ISSN :
- 14396327
- Volume :
- 110
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- European journal of applied physiology
- Accession number :
- edsair.doi.dedup.....85315ea236baed9e12ec9b2a2c8c2418