Professor of exercise physiology at the Institute of Neuroscience, UCLouvain (Louvain-la-Neuve).
Studies how muscle responds to training, nutrition and stressors such as low oxygen (altitude) and heat, down to the level of muscle stem cells and protein synthesis.
Has published reviews on protein intake and muscle growth, and on the potential harms of supplements in athletes — a sober voice in a market full of promises.
Recent studies compare repeated-sprint training in hypoxia with training in the heat, in both men and women, and measure the effect on performance in normal conditions.
Also works on muscle wasting: 2026 lab work showed that the mitochondrial peptides MOTS-c and humanin attenuated steroid-induced atrophy in human muscle cells.
Relevant to longevity because muscle mass and muscle quality are among the strongest buffers against frailty later in life; this research shows which stimuli genuinely help.