3.3
W
ORKOUT
D
ESCRIPTIONS
S
PEED
I
NTERVAL
This program alternates intervals of high and low speeds. As the profile diagram indicates, the speed gradually
increases 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.
A
EROBIC
This program alternates intervals of high and low speeds. As the profile diagram indicates, the speed gradually
increases 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.
F
AT
B
URNER
This program alternates intervals of high and low elevations. The high intervals are uniform in elevation, as are the
low intervals.
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