Planning An Exercise Programme
Wh?n d???gn?ng an aerobic ?r ?tr?ngth training ?x?r???? ?r?gr?mme, fitness ?r?f?????n?l?, such as ??r??n?l trainers and g?m ?n?tru?t?r?, ?nv?r??bl? u?? the Frequency-Interval principle ?? th??r ?t?rt?ng ???nt. Th? g??d n?w? ?? th?t w?th a l?ttl? b?t ?f kn?wl?dg? ?n??n? ??n u?? th?? ?r?n???l? ?n desi...