About this exercise
A passive chest and shoulder stretch performed lying on your side. You extend your top arm behind you and allow gravity to gently open the chest, making it an effective cool-down or mobility drill for tight pectorals.
Side-Lying Chest Stretch
Step by step instructions, muscle activation and variants for the Side-Lying Chest Stretch.
EasyMiddle chest
How to Perform
- Lie on your side on a mat with your hips and knees bent at roughly 90 degrees
- Extend your top arm straight in front of you at shoulder height, palm facing down
- Slowly sweep that arm up and over behind you in an arc, following with your gaze
- Allow your upper back to rotate open and your chest to stretch as your arm reaches behind you
- Let the stretch settle with gravity rather than forcing it
- Hold the end position, breathing deeply to deepen the stretch
- Return your arm to the starting position, then repeat on the other side
Muscle Activation
Primary
Middle chest
Secondary
BicepsFront shoulders
About the Side-Lying Chest Stretch
The Side-Lying Chest Stretch is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.
