ExercisesBike intervals

Bike intervals

After warming up, alternate one hard minute with one easy spin. Hard should feel like an 8 out of 10 effort.

CardioMachinesDifficulty 2 of 3
Two-panel demonstration of the bike intervals, showing the start and finish positions
Start and finish positions

How to do it

After warming up, alternate one hard minute with one easy spin. Hard should feel like an 8 out of 10 effort.

Muscles worked

Front
Back
  • quadsprimary
  • hamstrings
  • calves

Hover a muscle to find it on the figure. Dark green is the primary mover, lighter green is supporting work.

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Other options in this pattern

How many sets should you do?

That depends on your goal, your ability, and how many days you train. Answer three questions and the builder works out your sets and reps, plus a full week around them.

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JM
Johnny Milaychev · Product manager and self-directed lifter, not a trainer or a clinician. Why that matters and where this guidance stops.
Reviewed 16 August 2026 · Exercise library v2.2