Efficiency in Oxygen Utilization Training

The key to training efficiently is optimizing the oxygen cascade, from pulling in oxygen from the atmosphere to delivering it to muscles. The focus on training should be to reach maximum stroke volume, which can be achieved with moderate intensity levels rather than pushing to extremely high percentages of VO2 max. The debate around different training methods like interval training versus steady state is considered unnecessarily complicated as both can be effective in stimulating the heart and improving oxygen demand in muscles.