name: Square-wave resistance intervals
description: >-
  Raw resistance-channel intervals, bypassing the physics model entirely.
  Thirty seconds hard, thirty seconds easy, twenty times. Useful for
  characterising the trainer's resistance curve by feel.
looping: false

blocks:
  - type: constant
    channel: resistance
    value: 20.0
    extent:
      seconds: 300.0

  - type: wave
    channel: resistance
    shape: square
    midpoint: 45.0
    amplitude: 25.0
    period:
      seconds: 60.0
    repeats: 20.0

  - type: constant
    channel: resistance
    value: 15.0
    extent:
      seconds: 300.0