Heat training could offer same benefits as at altitude
This is the first investigation that compares the effects of heat and low-oxygen training side by side and the findings suggests that heat-based exercise can offer a more efficient means of improving altitude tolerance and physical performance than normobaric altitude training can provide.
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“We show that when the duration and frequency of training performed in heat or at altitude are the same, the heat-based training can offer a more obtainable and time-efficient method to improving tolerance to altitude,” says lead author Dr. Ben J. Lee, from the University of Coventry.
Dr. Lee and his co-authors asked a number of male cyclists to perform a time trial and tested their tolerance to low-oxygen levels before and after a series of ten daily 60 minute training sessions in either low-oxygen or hot conditions. In addition, blood samples were taken to see how their cells responded to the different training methods experienced by the cyclists.
Heat-based training reduced the physical strain experienced by the cyclists, as measured by their temperature and heart rates, as well as improved their time-trial performance. These positive effects matched those experienced by the cyclists that undertook low-oxygen training. The blood analysis showed that the stress response at a cellular level was also the same, indicating that there was little difference between the two exercise methods.
