A force platform system comprises one or more force platforms 10 with force measuring and recording means and an analysis and result storage device. The force platform is in communication with one or more external devices 18, 22, 24 for result display and analysis. An athlete performs an exercise or test on a force platform. Initial analysis is conducted in the force platform to produce limited results, and full data is stored in the recording means. Initial results are communicated to external devices for near real time display of results. Performance is contextualised by visualisation against the athlete's prior historical data and/or athlete performing the same test in parallel. The displayed results provide inter repetition feedback to athlete on technique, current and prior performance in order to motivate, alter execution or type of exercise being performed or to terminate the exercise. Also disclosed (Fig. 4) is a system in which the force platform is directly connected to a computer which provides the analysis of the raw force-time data and displays the results.