My current projects are centred around the following themes: (1) ‘Pacing, fatigue and performance’, in particular in sports involving direct competition such as short-track speed skating and cycling (2) Physiology and biomechanics of cyclic propulsion (3) Disability sports and performance (4) Active lifestyle and sports for persons with a disability (see www.ReSpAct.nl), (5) Handcycling and upper body training for persons in a wheelchair.