← Week 21
Sun · Week 21Run + core

Long Run + Core

Miles first, then tighten the waist

Where

At the gym uses machines & weights. At home swaps in band versions of every exercise.

550 kcal
estimate · tap effort to tune

Warm-up

  • Brisk walk4–5 min

    Walk into the run so the first mile doesn't feel like a fight.

  • Leg swings + ankle circles2 min

    Open the hips and ankles before the first stride.

Run

  • Long run3.5 mi

    Relaxed and even the whole way, a touch slower than steady. RPE 5–6.

    Your longest run of the week and the ceiling of the plan — 3.5 miles, nice and easy. Walk breaks are fine; finishing feeling good is the goal.

    💡 Never push past 3.5 miles — extra fitness comes from running six days, not one long day.

Core — tone & tighten

  • Slow leg lowers2 × 12

    Legs straight up, lower them as slow as you can while the low back stays flat, then back up.

  • Forearm plank + shoulder taps2 × 40 s

    Plank on the hands, tap opposite shoulder without letting the hips sway. Deep core, no bulk.

Cool-down & stretch

  • Walk it out5 min

    Let the heart rate come down before you stop moving.

  • Calf + hip flexor stretch40 s × each

    The two things that get tight from running every day.

  • Hamstring + glute stretch40 s × each

    Figure-4 and a gentle forward fold.

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