MobilityBeginnerIsolation

Open Book Rotation

Lying on your side, open the top arm like a book.

Open Book Rotation: correct exercise technique

Benefits

  • Upper-back rotation
  • Relieves desk stiffness

How to do it

  1. Knees stacked and bent
  2. Rotate the chest, not the hips
  3. Breathe out as you open

Common mistakes

  • Knees separating
  • Forcing the arm to the floor

Starting prescription

sets
1
reps
8
Rest
0 s

Alternatives

Programs that use it

2×/week8 weeks

Gentle Start

A conservative 2-day program (plus an optional mobility day) for returning, older or health-flagged lifters.

BeginnerGeneral fitness45 min

Your first workout in under three minutes.

Answer a few questions, get your program, and the workout screen is ready for the gym. Runs in your browser: no app store, no install.

  • Works offline
  • Suomi, English, Persian
  • Export your data any time