The range of joint movement has been quantified using hydrogoniometry
at a wide selection of joints in an athletic population selected for j
oint hyperlaxity. This included gymnasts competing at national and clu
b level, divers and dancers, as well as non-specialized physical:educa
tion students acting as controls. The sensitivity and reproducibility
of methods proved satisfactory. The greater laxity of females and in y
outh was confirmed and the influence of training recorded. A graded in
crease in laxity from controls, through novice gymnasts, divers, dance
rs to competitive gymnasts was observed in that order. A group of pati
ents recruited because of their symptoms had an even higher degree of
laxity recorded on a Carter and Wilkinson scale as measured by a posta
l questionnaire.