Upper body
Open the chest and front of the shoulders.
The chest muscles fan across the front of the ribcage and pull the arms in toward the midline — the motion behind every push, press and hug. When they stay short from desk hours or heavy pressing, the shoulders can round forward.
A little targeted opening across the doorway, corner or floor gives the pecs length again and lets the shoulders sit back where they move most freely.
Start here
A short, guided starting point for Chest — begin gently and stay within a comfortable range.
doorway open
Corner Pecs Stretch
deeper corner
Chest Opener
floor open
Cactus Arms
gentle warm-up
Dynamic Chest Flys
dynamic
Reverse Prayer Pose
front-shoulder
Guided routines to start with
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6 min BeginnerQuick Chest Opener
A short guided mobility reset for full body — reduce stiffness and support comfortable movement with Flexor. Session 12.
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8 min AdvancedPost-Workout Stretch: Chest & Shoulders
A controlled Flexor stretch routine for full body to support length after training without rushing. Session 5.
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10 min BeginnerOverhead Mobility
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 10.
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About the Chest
The chest is mainly the fan-shaped pectoralis major with the smaller pectoralis minor beneath it, spanning the collarbone, sternum and ribs to the upper arm.
The pecs pull the arm across and in front of the body and drive pushing and pressing, so their length shapes how open the shoulders feel.
They work closely with the front of the shoulder and the upper arm, which is why chest openers so often ease a rounded, hunched posture.
When people reach for this
After pushing or pressing
Doorway and corner openers give the pecs length once the pushing work is done.
WeightliftingRounded from desk hours
A gentle open across the chest counters a day spent hunched toward a screen.
Desk WorkersExercises for Chest
Routines for Chest
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12 min BeginnerElbow & Hand Comfort Flow
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 35.
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12 min BeginnerForearm Release
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 33.
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10 min Beginner
Overhead Mobility
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 10.
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8 min Advanced
Post-Workout Stretch: Chest & Shoulders
A controlled Flexor stretch routine for full body to support length after training without rushing. Session 5.
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9 min BeginnerPost-Workout Stretch: Upper Body
A controlled Flexor stretch routine for full body to support length after training without rushing. Session 3.
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8 min AdvancedPre-Workout Mobility: Shoulders
A focused mobility primer for full body to improve movement quality before training with Flexor. Session 3.
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6 min Beginner
Quick Chest Opener
A short guided mobility reset for full body — reduce stiffness and support comfortable movement with Flexor. Session 12.
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7 min BeginnerQuick Shoulder Unlock
A short guided mobility reset for full body — reduce stiffness and support comfortable movement with Flexor. Session 5.
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8 min Beginner
Quick Upper Back Unknot
A short guided mobility reset for full body — reduce stiffness and support comfortable movement with Flexor. Session 9.
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10 min IntermediateRecovery: Soft Tissue Flow
A low-intensity Flexor recovery session for full body to ease tension and keep you moving comfortably. Session 5.
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9 min BeginnerRise and Shine
A bright, full-body wake-up flow to loosen joints and switch on your posture for the day.
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14 min IntermediateShoulder Glide Routine
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 7.
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12 min AdvancedShoulder Space Builder
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 6.
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14 min Advanced
Shoulder Stability & Ease
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 9.
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9 min IntermediateThe Chest Opener
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 8.
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13 min IntermediateUn-slouch
A posture-focused reset to reconnect core support and open the upper back and chest.
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16 min IntermediateUpper Trap Unwind
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 3.
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10 min Beginner
Warm-Up: Shoulder Readiness
A readiness warm-up to raise temperature, open full body, and prepare your body to move with Flexor cues. Session 2.
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8 min Beginner
Warm-Up: Upper-Body Activation
A readiness warm-up to raise temperature, open full body, and prepare your body to move with Flexor cues. Session 9.
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11 min IntermediateWrist-Friendly Mobility
A comfort-first Flexor routine for full body that eases stiffness and supports easier everyday movement. Session 34.
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How Flexor personalises this
Flexor blends chest openers with upper-back and shoulder mobility to match how you train and sit, so the front of the body opens without overdoing any one angle.
See daily recommendationsExplore related pages
Move comfortably
- Ease into the doorway or corner rather than pushing hard on the shoulder joint.
- Keep the stretch across the chest, not sharp in the front of the shoulder.
This is general fitness guidance, not medical advice or treatment. Move within a comfortable range, and speak to a qualified professional about pain that persists or worsens.
Read the full wellness disclaimerWritten by Flexor editorial Last reviewed July 2026
Common questions
How do I stretch a tight chest?
Rest a forearm on a doorway or corner and turn gently away until you feel a comfortable stretch across the chest, then breathe and hold. Working a few arm heights covers the upper, middle and lower fibres of the pec.
Why does my chest feel tight from sitting?
Long hours reaching forward to a keyboard let the chest settle into a shortened position while the upper back lengthens. Regular openers restore that balance so the shoulders sit back more easily.
Should I stretch my chest before or after lifting?
Before pressing, gentle dynamic openers like cactus arms warm the area up. Save longer holds for afterwards, when the muscles are warm, so pushing strength is not blunted right before a set.
Can chest stretches help my posture?
Opening the chest alongside upper-back work often helps the shoulders feel less rounded and more comfortable through the day. It is general movement for comfort rather than a fix for posture.
