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Rest → load, working range

Joint angles · rest → load

Torso
75.0° → 77.0°
Hip
31.3° → 46.9°
Knee
17.3° → 27.8°
Shoulder
100.5° → 100.5°
Elbow
66.0° → 66.0°
Neck
20.0° → 20.0°

Prone Base

Prone Edge Hang

Hips at the surface edge, legs long and unsupported. Real posterior-chain isometric.

Front-down with load through the anterior chest and forearms. Demand sits in scapular endurance and lumbar position — the lower back fails here long before anything else does.

Difficulty 4 of 5Vigorous · minutes counted 2×

Muscle groups loaded

  • Scapular push
  • Core
  • Glutes

Limiting capacity

Strength limits this posture. Posterior chain and trunk endurance under load. Holds position without fatigue or compensation.

Intensity

What it costs, by role

Modelled intensity by role for Prone Edge Hang
RoleMETsBandActive-minute credit
Active role6.3Vigorous2×
Receiving role4.9Moderate1×

Light is under 3.0 METs, moderate 3.0–5.9, vigorous 6.0 and above (CDC). A session averaging at or above the vigorous line has its minutes credited at 2× in the Active Minutes ledger.

Energy

Modelled kilocalories

Modelled energy cost for Prone Edge Hang at 10, 20, 30 and 45 minutes for both reference bodies
Role · reference body10 min20 min30 min45 min
Active role · Male 82 kg90181271407
Active role · Female 68 kg75150225337
Receiving role · Male 82 kg70141211316
Receiving role · Female 68 kg58117175262

Estimates, not measurements

Every energy figure here is a modelled estimate, not a measurement. No study has measured cost position by position — the measured quantity is the session average (6.0 METs for men, 5.6 for women, Frappier 2013). These values distribute around that anchor by mechanical demand.

kcal = METs × 3.5 × bodyweight(kg) ÷ 200 × minutes (ACSM)

Values scale linearly with your own mass. If a position causes pain rather than effort, stop and see a clinician.

Mobility gate

Prone press-up to comfortable lumbar extension without pinching.

Clear the gate before adding load or duration here. If range is the thing standing in the way, Open Hips is the block that builds it.

Prescribed preparation

  1. 01

    Push-up

    Full-body tension, elbows at 45°. 3 x 10 with a 3s descent.

  2. 02

    Scapular push-up

    Arms straight, protract and retract only. 3 x 12.

  3. 03

    Plank shoulder tap

    Plank, tap opposite shoulder without hip sway. 3 x 10/side.

  4. 04

    Eccentric release

    Contract briefly, then lengthen over 6s. The half everyone skips. 3 x 10.

  5. 05

    Zone 2 base

    30–45 min conversational pace, 3–4x/week. The foundation under everything.

Free PQ assessment · 6 min

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