What it is
The intercostal muscles run between the ribs and play a crucial role in breathing and trunk movement. A strain is a small tear in these fibres. Pain is sharp, particularly with deep breaths, coughing, sneezing, or trunk rotation. Sleep can be disturbed early.
Care reduces pain, restores breathing mechanics, and rebuilds trunk strength and endurance for daily life and sport.
What happens when it occurs
Overload or a sudden cough tears fibres and triggers guarding. People breathe shallowly and avoid rotation. Gentle breathing drills and controlled movement restore confidence. Strength returns in stages.
Common causes and risk factors
- Coughing, illness or allergies
- Overhead or rotational sports such as cricket, tennis, and rowing
- Sudden reach or lift
- Low trunk conditioning
Who is most affected
All ages. Athletes in rotational sports and people with recent respiratory illness are common in Australian clinics.
Typical symptoms
- Sharp pain between the ribs that increases with deep breath
- Tenderness over the affected space
- Pain with trunk rotation or side bending
When to seek care
Urgently seek medical attention if chest pain is accompanied by shortness of breath, dizziness, or trauma. Otherwise, seek care when pain limits daily tasks or sleep.
How we diagnose
History and palpation, breathing and trunk movement testing, and exclusion of cardiac or pulmonary causes. Imaging is rarely required unless trauma has occurred.
Management
- Relative rest and simple analgesia as advised
- Breathing drills to restore rib movement
- Gentle trunk mobility and isometrics progressing to rotation strength
- Return to sport plan with graded volume
- Taping for comfort in selected cases
Rehabilitation milestones
Phase 1 week 0 to 1: pain control, breathing practice, gentle mobility.
Phase 2 weeks 1 to 3: isometrics and easy rotation strength, walking or cycling options.
Phase 3 weeks 3 to 6: progressive rotation, power and sport skills.
Readiness to progress
- Deep breath and cough without sharp pain
- Rotation strength restored without a guard
- Training sessions completed without next-day symptoms
Prevention
- Warm up and progress rotational loads steadily
- Maintain trunk conditioning and breathing capacity
- Manage cough promptly and pace activity during illness
Australia snapshot
- Common during seasonal respiratory illness and in rotational sports
- Most return to sport within weeks with structured rehabilitation
- Imaging is rarely needed when the story fits a strain
Latest insights
Breathing mechanics are part of rehab. Train them early.
Rotation strength returns quickly when pain is controlled.
