RT Journal Article SR Electronic T1 Physical working capacity and mile run performance in adolescent boys. JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 188 OP 192 DO 10.1136/bjsm.17.3.188 VO 17 IS 3 A1 J. Watkins A1 B. G. Ewing YR 1983 UL http://bjsm.bmj.com/content/17/3/188.abstract AB The degree of generality between the endurance characteristics of the one mile run and PWC170 tests was examined with a group of fifteen year old boys who performed both tests once a week for three weeks. A significant improvement in performance of both tests was found between trials 1 and 2, which was sustained between trials 2 and 3. These results suggest that norm scales regarding performance in both tests should be based on the average of at least two trials following a practice trial. The results of the present study also suggest that when average scores are used, rather than single scores, the amount of generality between the endurance characteristics of the one mile run and PWC170 test is high enough to allow physical working capacity to be predicted fairly accurately from performance in the one mile run.