VO2max – the maximum volume of oxygen that the body can use during aerobic action - is a determining factor in a runner's performance. But energy-efficient motion is also a key element, particularly for endurance running, such as marathons.
All the scientific studies carried out over the last decade have shown that a trained runner can reduce the energy used by following a muscle-building programme for several months.
Explanation: stronger foot strikes reduce ground contact time and oxygen consumption at a certain speed.
Advice by Sport