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Rest → load, working range

Joint angles · start → finish

Torso
54.0° → 60.0°
Hip
74.0° → 96.0°
Knee
106.0° → 116.0°
Shoulder
66.0° → 70.0°
Elbow
18.0° → 20.0°
Neck
8.0° → 8.0°

Mobility

Adductor Rock-Back

3 × 10 slow rocks/side on all fours, one leg out to the side.

Difficulty 1 of 52.6 METs · Light

Equipment

  • Mat

Muscle groups worked

  • Adductors
  • Hip flexors

What it buys you

Opens the inner thigh gently. The best first mobility drill if wide positions currently pinch.

Capacity trained

Mobility. Hip, adductor and thoracic range. Determines which positions are available and comfortable.

Energy

Modelled kilocalories

Modelled energy cost for Adductor Rock-Back at 10, 20, 30 and 45 minutes for both reference bodies
Reference body10 min20 min30 min45 min
Male reference · 82 kg37 kcal75 kcal112 kcal168 kcal
Female reference · 68 kg31 kcal62 kcal93 kcal139 kcal

Energy figures are modelled from standard activity MET values (Ainsworth Compendium, 2011) and the ACSM equation, not measured on you. They scale linearly with your own body mass, so a body 10% heavier burns about 10% more at the same intensity.

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

Load is effort, not pain. If a movement hurts rather than works, stop and see a clinician. Lifting another person is strength training with a person-shaped load — build the pattern unloaded first.

Cross-reference

Positions this workout helps · 51

It serves Side-Lying, Supine Base, Seated and Seated Astride. Every position in those families is listed below, hardest first.

Honest framing

Training makes a posture available and sustainable. It is capability work, not a treatment for anything, and no single session changes a number. Consistency over eight weeks does.

Free PQ assessment · 6 min

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