Even at 75% of max speed, hamstring activation can exceed max...
Fred Duncan@Fred__Duncan
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Dec 09, 2025
~1 min read
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Even at 75% of max speed, hamstring activation can exceed max isometric levels.
That’s how intense sprinting is.
Submaximal runs…like 70–80% effort still provide massive hamstring stimulus while keeping fatigue lower.
If you want to understand why sprinting builds what the
That’s how intense sprinting is.
Submaximal runs…like 70–80% effort still provide massive hamstring stimulus while keeping fatigue lower.
If you want to understand why sprinting builds what the
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weight room can’t, that’s what Speed Kills breaks down. It covers mechanics, programming, resisted sprints, coaching cues, and how to structure your week for real speed development.
For personalized help, I also offer custom remote programming and 1-on-1 phone consults
For personalized help, I also offer custom remote programming and 1-on-1 phone consults
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Everyone wants the “secret” to speed, but they skip over what actually matters…execution.
Watch how Shelly-Ann Fraser-Price moves. There’s intent behind every drill. It’s not the complexity of the exercise that makes her great, it’s the precision. The best athletes understand
Watch how Shelly-Ann Fraser-Price moves. There’s intent behind every drill. It’s not the complexity of the exercise that makes her great, it’s the precision. The best athletes understand