Fitness · Lower legs

Single-leg calf raise

Target Calves  ·  Equipment Body weight  ·  Level Intermediate  ·  Reps 10

Single-leg calf raise is an intermediate-level fitness movement targeting the calves, written in Posecode, a small open-source language that capable language models can use to describe human movement as text. Authored joint targets and reach-IK solves are constrained to Posecode's configured per-axis bounds. Those bounds constrain the visualization, but they do not certify that a complete movement is safe or clinically correct. This page documents a code example; it is not exercise instruction.

Movement phases

Phase cues are display-only coaching text. The executable joint and contact directives in the source below determine the animation.

1. Rise1.1s · settle Balance on the right foot and rise onto the ball of the foot
2. Lower1.3s · settle Lower the right heel slowly under control

The .posecode source

This is the exact text used by the linked playground animation: phases and joint angles, not 3D transforms.

posecode exercise "Single-leg calf raise"
  rig humanoid
  pose start = standing

  step "Rise" 1.1s settle:
    ankle_right: plantarflex 40
    knee_left: flex 60
    pin: foot_right floor
    cue "Balance on the right foot and rise onto the ball of the foot"

  step "Lower" 1.3s settle:
    ankle_right: plantarflex 0
    knee_left: flex 60
    pin: foot_right floor
    cue "Lower the right heel slowly under control"

  repeat 10

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