Accuracy of feedback during training of passive accessory intervertebral movements

The purpose of this study was to determine the accuracy of verbal feedback given by manipulative physiotherapy students after a fellow student had applied Passive Accessory Intervertebral Movements (PAIVMs). Twelve students working in pairs acted in turn as model and therapist. Student therapist performance in producing a Grade-III movement was compared subjectively by student models to that of an experienced therapist. Their performance was also objectively compared using a force platform measurement system. Performances were assessed in terms of peak force and the frequency and amplitude of force oscillations. The feedback provided by student models was found to be inconsistent and unreliable. Alternate teaching methods seem necessary in order to provide student therapists with feedback appropriate for learning.