ERIN STERN
IFBB Figure Pro
Sprint for Success
Sprinting not only increases athleticism by building fast-twitch muscle fibers, it’s also highly effective for fat burning. To amp up fat loss, I do two or three sprint sessions per week. For example, I focus on sprint endurance for two of those, performing 400-meter repeats. For the other session, I’ll switch it up and focus on speed, with 10 rounds of 50-meter sprints going all out.
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