I'm having issues doing this behind the back arm stretch on one

Shoulder Stretches

Yay! I got my front leg to touch today on right front splits! Still more work to go on left and middle. : r/flexibility

Chest Stretches With Clasped Hands Behind the Back

How to Improve Reaching Your Hand Behind Back - Posture Direct

How to Improve Reaching Your Hand Behind Back - Posture Direct

How to Improve Reaching Your Hand Behind Back - Posture Direct

Why Hamstrings Get Tight - and Why Stretching Them Will Never Fix

Neck Problems : r/flexibility

Stretching: What It Is, Health Benefits, and Getting Started