1996a-647 adolescentpsychology care child childpsychology children chronicallyillchildren chronicdisease congresses exercicesisométriques exercicespourenfants exercise hathayoga hathayogaforchildren healthandhygiene infant infantcare infants ininfancyandchildhood isometricexercise juvenileliterature medical movement nutrition obesityinchildren pediatrics pediatricsportsmedicine physicalfitness physicalfitnessforchildren physiologicalaspects physiology prevention qigong qt260s762631995 sports sportsforchildren sportsforpeoplewithdisabilities sportsmedicine studyandteaching unitedstates weighttraining yoga