fax machine. (fÄks) A device that sends and receives printed pages or images over telephone lines by digitizing the material with an internal optical scanner and transmitting the information as electronic signals.
1 Beginners neednât work their way as high up the warm up sequence (to 95 percent of the working weight) as more experienced lifters.  Warm up sets should be tailored to intensity. For example, a session of 4 sets of squats for 6 repetitions entails a heavier working weight than 3 sets of 12 repetitions. Adjust accordingly.
The study looked at ten elite track cyclists doing two types of warm-ups: a long, high-intensity warm-up of 50 minutes that brought the athletes all the way to 95 percent of their maximal heart rates, and a shorter, 15-minute warm-up that had the cyclists peak out at only 70 percent of their maximal heart rates.