Add the exercise reference library, animated exercise figures, and exercise categories

Exercise Library/ holds per-exercise reference docs (setup, cues,
mistakes, progressions) with SVG visuals and a Python-rendered motion
pipeline; Workouts/ExerciseFigure renders the bundled *.motion.json
rigs as animated stick figures on the exercise screen. Exercises gain
a warm-up/main-circuit category, timed exercises display hold time via
planSummary, and a completed exercise reopens to a check screen instead
of its timers.
This commit is contained in:
2026-07-06 01:15:52 -04:00
parent ddd5631ef2
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<title>Hollow Body Hold</title>
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<title>Hollow Body Hold</title>
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# Hollow Body Hold
The gold standard for deep core tension — a shallow, rigid banana shape.
- **Category:** Main circuit
- **Type:** Anti-extension (isometric hold)
- **Targets:** Rectus abdominis, deep core, hip flexors
- **Prescription:** 3 × 2040 s holds
## Setup
Lie on your back, arms extended overhead beside the ears, legs straight and
together.
## Execution
1. Press the lower back *into* the floor and hold it there — this never releases.
2. Lift shoulder blades and legs a few inches off the floor into a shallow
banana shape.
3. Reach long through fingers and toes and hold.
## Cues
- The lower back stays welded to the floor; if it lifts, shorten the shape.
- Chin gently tucked — look at your thighs, not the ceiling.
- Lower = harder. Height is not the goal, tension is.
## Common Mistakes
- Lower back arching off the floor (the hold has failed at that point).
- Folding at the hips into a V-sit.
- Neck cranked forward doing all the "work".
## Progression
Tuck hold (knees in) → one leg extended → full extension, arms overhead →
hollow rocks
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"primary": 2,
"working": ["spine"],
"hide": ["arm_l"],
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},
{
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"spine": [174, 160], "neck": 140, "gaze": 50,
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}
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}
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