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
Common Mistakes
Common mistakes content is coming soon.
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.