Do non-responders to resistance training exist in professional sport?

Resistance training (RT) is the most popular form of exercise that exerts several benefits (muscle hypertrophy and strength). Furthermore, we are witnessing several athletes competing at the highest level of their respective sport have undergone an enormous physical transformation. Nonetheless, lack of RT training, especially after a long detraining period, causes loss of muscle mass, and consequently, a decreased muscle strength, power, and lower muscle activation, and consequently, performance deterioration. In light of these facts, several authors recently have arisen the existence of responders and non-responders to RT. In order to improve athletic performance, the scientific community has tried to define the right RT method to be applied with athletes. In this regard, complex training compared to traditional training methods is reported to be a useful method providing superior benefits for improving athletic performance. With this editorial we encourage the research community to investigate this very interesting and complex matter, making the picture clearer and giving the opportunity to the athletic community to adjust RT programs based on the individual needs in order to maximize the outcome.