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3.3 WORKOUT DESCRIPTIONS
SPEED INTERVAL
This program alternates intervals of high and low speeds. As the profile diagram indicates, the speed gradually increas-
es in the early stage. The main section of the workout consists of high- and low-speed intervals. The contrast between
speeds is sharper than in the AEROBIC workout. In the final stage, the speed gradually declines.
AEROBIC
This program alternates intervals of high and low speeds. As the profile diagram indicates, the speed gradually increas-
es in the early stage. The main section of the workout consists of high- and low-speed intervals. The contrast between
speeds is more subtle than in the SPEED INTERVAL workout. In the final stage, the speed gradually declines.
FAT BURNER
This program alternates intervals of high and low elevations. The high intervals are uniform in elevation, as are the low
intervals.