MIKE O'FLAHERTY RUNNING

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Hill Blasts & Aerobic Strides: The Short, Sharp Work That Comes Before Base Training

Before any real speed work enters your training, there's a shorter, sharper phase most runners skip entirely: Pre Super Base. It's brief, it's low-volume, and it's the reason the base-building phase that follows actually pays off instead of just adding fatigue.

The problem it actually solves

Most recreational runners run with a hip-flexor-dominant, shuffling gait without ever realizing it. It's not a flaw, it's just what happens when running mechanics were never specifically trained. The issue is that this pattern caps your efficiency and quietly raises injury risk, and no amount of easy mileage on its own fixes it. It needs to be corrected directly, in small doses, before you build volume on top of it.

Aerobic strides

Short reps, run at roughly 5K effort, starting around 20 seconds and progressing over time toward 40 seconds plus a continuous 5-minute effort. These aren't sprints and they're not a workout in the traditional sense, they're a mechanical cue: a short reminder to your body of what efficient, glute-driven running actually feels like, repeated often enough that it starts to show up in your easy running too.

Hill Blasts

Eight-second, max-effort hill sprints. The cue that makes them work: Tall, Relaxed, Piston, Pop-Pop-Pop, upright posture, no tension in the upper body, a driving piston-like knee action, and quick, light ground contact. Full recovery matters here, a 2 minute 30 second walk between reps, building gradually from 4 reps up to 8.

Because the effort is so short and the recovery so full, Hill Blasts train real power and mechanics without the joint pounding of a full sprint session or the fatigue cost of a longer interval workout. That's the whole point, maximum mechanical benefit for minimal training cost.

Why this comes before Super Base, not during it

Layering hill work and aerobic strides in before the base-building phase means the base you build afterward gets built on top of corrected mechanics, not on top of the same shuffle you started with. Do it the other way around, mileage first and mechanics later, and you often end up reinforcing the exact pattern you'll eventually need to unlearn.

What this phase is not

It's not a speed phase, and it's not meant to leave you sore or wiped out. If Hill Blasts are leaving you unable to run normally the next day, the effort or volume is off, back it down. This phase should feel like a small, sharp addition to your week, not a session you have to recover from for days.

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