Rossum, E. van

intervention participant balance tai chi chuan study effect trial group tai chi chuan people health exercise activity control outcome training ouderen outcome measures month scale logghe prevention result fall prevention tcc training measure instructor netherland fall risk baseline fall incidents randomized factor maanden valrisico lesson score onderzoek problem geriatr control group table person number review fall reduction intervention group population improvement activity scale follow-up verhagen incident questionnaire analysis blood pressure bene ficial effects intervention techniques reduction health care services measurement university signi risk factors ficant voukelato heart rate characteristic exercise controls aspect range controlegroep werden research session position status adult i.h.j