The Short Answer Educational content only. Any suspected concussion warrants medical evaluation. Consult a cervical-trained physical therapist, physiatrist, or concussion specialist for individualized care. Rib cage restriction contributes to post-concussion breathing problems by limiting rib expansion, which forces a shallow upper-chest breathing pattern that overworks the accessory neck muscles and sustains sympathetic nervous system drive (Patricios et al., 2023). After concussion, thoracic stiffness, guarded posture, and elevated sympathetic tone restrict the rib cage. The diaphragm cannot descend fully against a restricted rib cage, so breathing shifts to the upper chest and recruits the scalenes and sternocleidomastoid. This pattern produces air hunger, neck tension, dizziness, and anxiety, and it feeds the autonomic dysregulation common after concussion. Diagnosis assesses rib mobility and breathing pattern. Treatment restores rib and thoracic mobility and retrains diaphragmatic breathing. Rib restriction forces shallow upper-chest breathing. Chest breathing overworks the neck and sustains sympathetic drive. Rib mobility and diaphragmatic retraining restore normal breathing. Rib Cage and Breathing Mechanics Normal breathing depends on rib cage mobility. During inhalation, the diaphragm descends while the ribs rise and swing outward through the costovertebral and costosternal joints, expanding the chest in all directions. This coordinated motion draws air in efficiently with minimal accessory muscle effort. Exhalation returns the ribs and diaphragm to rest. The diaphragm is the primary breathing muscle. When the rib cage moves freely, the diaphragm descends fully and does most of the work of breathing. When the rib cage is restricted, the diaphragm cannot descend against the resistance, and the body recruits the accessory muscles of the neck and upper chest to lift the rib cage instead. How Concussion Restricts the Rib Cage Concussion restricts the rib cage through several mechanisms. Elevated sympathetic tone after concussion shifts breathing toward the upper chest as part of the stress response, and sustained upper-chest breathing stiffens the rib joints over time. Guarded, flexed posture with rounded shoulders compresses the front of the rib cage and limits expansion. Associated whiplash strains the costovertebral joints and the muscles between the ribs. Reduced thoracic spine extension prevents the upper ribs from rising fully. The result is a rib cage that moves less, a diaphragm that descends less, and a breathing pattern that relies on the neck muscles. This pattern then reinforces itself, because chest breathing sustains the sympathetic drive that started it. The Breathing-Symptom Cycle Shallow upper-chest breathing feeds several post-concussion symptoms at once. It overworks the scalenes and sternocleidomastoid, which also attach to the neck and worsen cervicogenic headache and neck tension. It produces a sense of air hunger and unsatisfying breaths that drive anxiety. It can lower carbon dioxide levels through overbreathing, producing dizziness, tingling, and lightheadedness. And it sustains sympathetic dominance, which perpetuates the autonomic dysregulation, poor sleep, and heightened symptom sensitivity common after concussion. Restoring diaphragmatic breathing breaks this cycle at its source. Symptom Presentation Sensation of air hunger or unsatisfying breaths Frequent sighing or yawning to catch a full breath Visible upper-chest and shoulder rise with each breath Neck and upper shoulder tension and fatigue Dizziness, lightheadedness, or tingling with exertion or stress Anxiety and heightened symptom sensitivity Reduced tolerance for exercise and exertion Poor sleep and difficulty settling the nervous system Assessment A clinician observes the breathing pattern at rest, watching for upper-chest and shoulder rise versus lower rib and abdominal expansion. A hand on the upper chest and a hand on the lower ribs reveals where motion occurs. Diaphragmatic breathers expand the lower ribs and abdomen first. Chest breathers lift the upper chest and shoulders. Rib cage mobility is assessed segment by segment, checking costovertebral joint motion and lateral rib expansion. Thoracic spine extension and rotation mobility are assessed, since they influence rib motion. Accessory muscle tension in the scalenes and sternocleidomastoid indicates the degree of substitution. The assessment guides whether restriction, pattern, or both drive the problem. Treatment Approach Rib and thoracic mobility restore the mechanical freedom for the diaphragm to work. Costovertebral joint mobilization, thoracic extension and rotation mobility, and soft tissue release of the muscles between the ribs open the rib cage. Overhead and side-bending mobility drills expand lateral rib motion. Diaphragmatic breathing retraining rebuilds the pattern. The patient practices slow breathing that expands the lower ribs and abdomen while keeping the upper chest and shoulders quiet. Ten slow breaths every 60 to 90 minutes rebuilds the habit and lowers sympathetic tone through vagal stimulation. Prolonged exhalation further activates the parasympathetic response. Postural correction supports the change. Thoracic extension and scapular positioning reduce the front-of-chest compression that limits expansion. Reducing accessory muscle reliance relieves the neck tension and headache the pattern sustains. Because breathing links directly to autonomic tone, this work supports recovery across the whole post-concussion symptom cluster. Persistent post-concussion cervical dysfunction responds to structured joint mobility work paired with skilled manual therapy. Start your 3-day free trial to build the daily routine. Supporting Mobility Routine JME 155 Diaphragmatic breathing restores parasympathetic tone through vagal stimulation. Ten breaths every 60 to 90 minutes. JME 14 Chin tucks activate deep cervical flexors and reduce upper cervical extensor tension. Ten repetitions with 5-second holds. JME 1 Cervical rotation restores segmental mobility and supports cerebral blood flow through the vertebral arteries. Ten repetitions per direction. JME 15 Cervical lateral flexion addresses side-bending restrictions common after whiplash-associated disorder. Ten repetitions per side. JME 16 Cervical flexion and extension restore sagittal mobility restricted by suboccipital and upper trapezius guarding. Eight slow repetitions. JME 2 Cervical retraction reinforces neutral head posture and reduces anterior head carriage strain. Ten repetitions per set. JME 150 Thoracic rotation restores mid-back segmental motion required for full cervical range and diaphragmatic breathing. Eight repetitions per direction. JME 227 Overhead reach opens shoulder and thoracic extension, reducing compensatory upper cervical extension. Ten repetitions with controlled tempo. Start your 3-day free trial for joint-specific mobility programming built for cervical rehabilitation after concussion. Common Mistakes Retraining breathing pattern without restoring rib and thoracic mobility Cueing deep breaths that pull the upper chest and shoulders up further Ignoring the sympathetic drive that sustains the pattern Overbreathing during practice, which worsens dizziness and tingling Treating the neck tension without addressing the breathing cause Progression Weeks 1 to 4 target rib and thoracic mobility and basic diaphragmatic pattern acquisition at rest. Weeks 5 to 12 build the pattern into daily activity and gentle exertion. Weeks 13 to 24 integrate diaphragmatic breathing into exercise and graded return to activity. Most patients notice reduced air hunger and neck tension within 4 to 6 weeks. Full autonomic and pattern change continues across the program. How do I know if I am chest breathing instead of diaphragmatic breathing? Place one hand on your upper chest and one on your lower ribs. If the upper hand rises first and the shoulders lift with each breath, you are chest breathing. Diaphragmatic breathing expands the lower ribs and abdomen first while the upper chest stays quiet. This simple test guides retraining. Why does shallow breathing cause dizziness after concussion? Shallow upper-chest breathing often becomes overbreathing, which lowers carbon dioxide levels in the blood and narrows cerebral blood vessels, producing dizziness, lightheadedness, and tingling. It also overworks the neck muscles and sustains sympathetic drive. Slow diaphragmatic breathing normalizes carbon dioxide and reduces these symptoms. Can rib cage restriction cause neck pain after concussion? Yes. When the rib cage is restricted, the diaphragm cannot descend fully and the body recruits the scalenes and sternocleidomastoid to lift the chest. These neck muscles fatigue and develop tension, worsening cervicogenic headache and neck pain. Restoring rib mobility and diaphragmatic breathing relieves the neck load. How does diaphragmatic breathing help post-concussion recovery? Slow diaphragmatic breathing with prolonged exhalation stimulates the vagus nerve and shifts the nervous system toward parasympathetic tone. This lowers the sympathetic drive that sustains post-concussion symptom sensitivity, poor sleep, and autonomic dysregulation. Regular practice supports recovery across the whole symptom cluster. How long does it take to restore normal breathing after concussion? Most patients notice reduced air hunger and neck tension within 4 to 6 weeks of combined rib mobility and breathing retraining. Full change in the breathing pattern and autonomic tone continues across 12 to 24 weeks. Frequent short practice sessions through the day outperform occasional long ones. Red Flags Requiring Immediate Evaluation The following symptoms warrant same-day emergency department evaluation before continuing any cervical rehabilitation. Progressive weakness or numbness in the arms or legs Loss of bowel or bladder control Difficulty swallowing or slurred speech Loss of coordination or gait deviation Severe worsening headache unresponsive to usual treatment New vision loss, double vision, or facial droop Loss of consciousness or seizure activity Signs of vertebral artery dissection including sudden severe neck pain with neurological symptoms Absence of red flag features supports outpatient cervical rehabilitation. Presence of any red flag feature indicates emergency imaging and neurological or neurosurgical consultation before treatment. Multidisciplinary Care Considerations Post-concussion cervical dysfunction rarely occurs in isolation. Coexisting vestibular dysfunction, oculomotor dysfunction, autonomic dysregulation, and mood symptoms are common. Coordinated care produces better outcomes than isolated treatment of one system. A multidisciplinary team includes a concussion-experienced physical therapist, a neuro-optometrist for visual dysfunction, a vestibular therapist for balance and dizziness, a neurologist or physiatrist for medication management, and a psychologist for mood and cognitive symptoms. The primary concussion physician coordinates the plan and monitors progress. Communication between providers about treatment intensity, symptom triggers, and provocation testing reduces duplicated effort and prevents symptom flare from uncoordinated dosing. Sharing objective measures including cervical flexion-rotation test values, VOMS scores, and craniocervical flexion pressure levels supports coordinated progression. Return-to-Activity Benchmarks Return to daily activity requires headache-free performance of provocation testing and normalized objective measures. Return to non-contact exercise requires sustained symptom-free performance at graded intensity. Return to contact sport requires clearance from the concussion physician after all rehabilitation milestones are met. Objective benchmarks include cervical flexion-rotation test above 32 degrees per side, craniocervical flexion pressure of 26 to 30 mmHg with 10 repetitions of 10-second holds, and VOMS provocation of 2 or less across all subtests. Subjective benchmarks include symptom-free performance of daily and sport-specific tasks, and confidence in movement. Meeting objective benchmarks without subjective confidence supports continued graded exposure before full return. Sleep, Nutrition, and Recovery Considerations Cervical rehabilitation outcomes depend on tissue recovery support. Sleep drives ligamentous and muscular repair. Aim for 7 to 9 hours per night with a consistent schedule and a supportive pillow allowing neutral cervical position. Side sleeping with a pillow supporting neck curvature outperforms prone sleeping for cervical recovery. Prone sleeping with the head rotated sustains asymmetric cervical load and delays healing. Nutrition supports collagen synthesis and inflammation regulation. Adequate protein intake (1.2 to 2.0 grams per kilogram of body weight per day for active recovery), vitamin C, zinc, and omega-3 fatty acids support tissue repair. Hydration supports intervertebral disc health and metabolic recovery. Alcohol worsens sleep quality and impairs tissue repair. References Patricios, J. S., et al. (2023). Consensus statement on concussion in sport: the 6th International Conference on Concussion in Sport, Amsterdam, October 2022. British Journal of Sports Medicine, 57(11), 695-711. PubMed Silverberg, N. D., et al. (2020). Management of concussion and mild traumatic brain injury: a synthesis of practice guidelines. Archives of Physical Medicine and Rehabilitation, 101(2), 382-393. PubMed Schneider, K. J., et al. (2014). Cervicovestibular rehabilitation in sport-related concussion. British Journal of Sports Medicine, 48(17), 1294-1298. PubMed