TY - JOUR T1 - LIgamentous laxity in athletes-reply AU - Grana WA Y1 - 1979/04/20 N1 - 10.1001/jama.1979.03290420011005 JO - JAMA SP - 1683 EP - 1683 VL - 241 IS - 16 N2 - The questions raised are the essence of our own questions about this method of testing laxity of the joint. Can testing methods validated in a group of professional athletes be used for the same means in a more general population? In this case our results and those of others support the posture that these tests cannot be used to predict the risk of injury for athletes in secondary schools. To be generally applicable, these tests must be valid in other than the professional athlete—a very special breed of human being. This is precisely the reason we say: "It may be that the results from a group of professional football players cannot be extrapolated to other age groups or levels of performance."As to the value of the tests themselves in determining a loose or tight person, we have some reservation regarding the effect of warm-up and practice on SN - 0098-7484 M3 - doi: 10.1001/jama.1979.03290420011005 UR - http://dx.doi.org/10.1001/jama.1979.03290420011005 ER -