Doctor of Philosophy, VU University Amsterdam, 1989.
Full professor VU University Amsterdam, since 1998. Editor human movement science Elsevier Science Publishers, since 1999.
Chairman board Institute Fundamental and Clinical Human Movement Sciences, Amsterdam, 1999—2007. Member of Society Ecological Psychology.
Married Anouschka Phillipina de Wit, December 23, 1994. 1 child Wessel January.