The Buffalo Protocol: Individualized Exercise Prescription for Concussion The Buffalo Protocol is the most extensively researched exercise-based concussion treatment program in the world. Developed by Dr. John Leddy and colleagues at the University at Buffalo Concussion Management Clinic, the protocol transforms concussion management from passive rest to active rehabilitation. The core innovation is individualizing exercise intensity using a graded exercise test that identifies each patient's specific symptom threshold heart rate. This replaces generic recommendations ("take it easy") with precise prescription ("exercise at 108 beats per minute for 20 minutes daily") (Leddy et al., 2019). The protocol rests on a specific physiological model. Concussion impairs cerebral blood flow autoregulation and autonomic nervous system function. These impairments produce exercise intolerance. The exercise intolerance is measurable: there is a specific exercise intensity (quantified by heart rate) at which the impaired autoregulation fails and symptoms worsen. Training below this threshold retrains autoregulation. The threshold rises with each training session. When the threshold reaches the age-predicted maximum heart rate without symptoms, the physiological concussion has resolved. The protocol has three components: Assessment: The Buffalo Concussion Treadmill Test (BCTT) identifies the symptom threshold heart rate Exercise prescription: Daily aerobic exercise at 80-90% of the threshold heart rate Progression: Re-testing every 2-3 weeks to adjust the prescription upward as the threshold rises The Buffalo Concussion Treadmill Test (BCTT) The BCTT is a graded exercise test specifically designed for concussion patients. The patient walks on a treadmill starting at a slow speed (3.3 mph) with 0% incline. Every minute, the incline increases by 1 degree while speed remains constant. Heart rate and symptoms are monitored continuously. The patient rates symptom severity (0-10 scale) at each minute. The test continues until symptoms increase by 3 or more points from baseline, the patient reaches volitional exhaustion, or the protocol maximum (15 minutes at the equivalent of a steep hill) is reached. The symptom threshold heart rate is the heart rate at the minute when symptoms first reproducibly increase. For example: a patient starts with a headache of 2/10. At minute 8, heart rate is 132 bpm and headache increases to 5/10. The symptom threshold is approximately 132 bpm. The exercise prescription is 80-90% of 132, which is 106-119 bpm. Why a treadmill test instead of a bike test? The original BCTT uses a treadmill because walking is a natural movement pattern that challenges the vestibular and autonomic systems representatively. A bike version (Buffalo Concussion Bike Test) exists for patients who are not safe on a treadmill or prefer cycling. Both identify the symptom threshold heart rate with comparable accuracy. The test modality does not affect the exercise prescription. Mobility Exercises That Complement the Buffalo Protocol JME 155 Diaphragmatic breathing before the prescribed aerobic session primes the autonomic nervous system for exercise. The parasympathetic activation from the 4-second inhale, 6-second exhale pattern reduces the baseline sympathetic tone that determines the starting point for exercise heart rate response. Lower starting sympathetic tone means more "room" between resting heart rate and the symptom threshold, allowing more productive exercise within the prescribed heart rate zone. 10 breaths before every aerobic session. JME 14 Chin tucks address the cervical dysfunction that the Buffalo Protocol does not directly target. The protocol prescribes aerobic exercise. The cervical spine needs separate attention. Cervicogenic symptoms (headache, dizziness from neck dysfunction) lower the apparent symptom threshold on the BCTT, resulting in a more conservative exercise prescription than the brain injury alone would produce. Treating cervical dysfunction raises the true threshold, allowing more productive aerobic training. 10 repetitions with 5-second holds, 3 times daily. JME 1 Cervical rotation restores the neck mobility needed for comfortable treadmill walking. Head bobbing and compensatory movement patterns during walking increase cervicogenic symptom contribution during the BCTT and daily aerobic sessions. Smooth cervical rotation allows natural head movement during walking without provoking cervicogenic symptoms. 10 repetitions each direction before aerobic sessions. JME 150 Thoracic rotation improves the trunk mechanics that support efficient walking and cycling. Thoracic stiffness increases energy cost during aerobic exercise, elevating heart rate at a given workload. This means reaching the symptom threshold heart rate at a lower actual workload. Thoracic mobility allows more productive aerobic work within the prescribed heart rate zone. 8 repetitions per direction. Start your 14-day free trial to complement the Buffalo Protocol with targeted joint mobility. Additional Supporting Exercises JME 3 Lateral cervical flexion releases the accessory breathing muscles (scalenes) that tighten after whiplash. Tight scalenes produce shallow breathing that increases heart rate at rest and during exercise. Releasing scalene tension improves breathing efficiency, keeping heart rate lower at any given exercise intensity. This allows more work within the prescribed heart rate zone. 8 repetitions per side. JME 42 Shoulder circles release the upper body tension that increases energy expenditure during walking and cycling. Tense shoulders increase oxygen consumption and heart rate independently of the aerobic workload. Releasing shoulder tension keeps heart rate appropriately proportional to the aerobic stimulus, ensuring the prescribed heart rate zone reflects true cardiovascular demand rather than muscular tension artifact. 10 repetitions each direction. JME 151 Lateral side bends with breathing provide combined trunk mobility and autonomic support. The exercise opens the lateral rib cage for improved ventilation and activates vagal pathways through the breathing component. Improved ventilation and parasympathetic tone both support performance within the prescribed heart rate zone. 8 repetitions per side. JME 111 Hip flexor mobility restores the hip extension needed for efficient walking gait. The BCTT uses treadmill walking as the exercise mode. Restricted hip extension shortens stride length and increases step frequency, elevating heart rate at a given walking speed. Restoring hip extension normalizes gait efficiency, allowing the prescribed walking speed to produce the target heart rate rather than an artificially elevated one. 8 repetitions per side. Optimize your Buffalo Protocol results with simplmobility's joint-specific mobility programming. Evidence Supporting the Buffalo Protocol The 2019 randomized controlled trial is the landmark study. 103 adolescents with acute sport-related concussion were randomized to either sub-threshold aerobic exercise (Buffalo Protocol) or placebo stretching within 10 days of injury. The exercise group recovered in a median of 13 days versus 17 days for the stretching group (p = 0.009). The exercise group had a 48% lower rate of delayed recovery (beyond 30 days). For every 4 patients treated with the protocol, one was prevented from developing persistent post-concussion symptoms (Leddy et al., 2019). The 2023 systematic review and meta-analysis confirmed the findings across multiple studies. Early aerobic exercise consistently reduced recovery time compared to rest or non-aerobic interventions. The effect was significant across age groups (adolescents and adults), concussion severity levels, and sport types. The review concluded that early sub-threshold aerobic exercise should be the standard of care for acute sport-related concussion (Leddy et al., 2023). The BCTT itself has strong diagnostic utility. The test differentiates between physiological concussion (autoregulatory dysfunction producing exercise intolerance) and recovered concussion (normal exercise tolerance). Patients who reach age-predicted maximum heart rate without symptom provocation on the BCTT have resolved the physiological concussion regardless of subjective symptom reporting. This provides an objective recovery marker independent of symptom self-report. Practical Implementation Without Formal Testing Not everyone has access to a clinic that performs the BCTT. The self-administered version follows the same principle. Use a treadmill or stationary bike with a heart rate monitor. Start at low intensity. Increase intensity every 2 minutes (raise speed or incline on treadmill, raise resistance on bike). Monitor symptoms at each 2-minute interval. Note the heart rate when symptoms first increase by 3+ points. Set your daily exercise target at 80-90% of that heart rate. Without any formal testing, the symptom-guided approach works. Exercise at an intensity that feels "comfortable" and does not worsen symptoms. Wear a heart rate monitor. Note the heart rate during comfortable, symptom-free exercise. This is your working heart rate zone. Increase the intensity by 5-10% each week as long as symptoms remain stable. This pragmatic approach approximates the Buffalo Protocol without the formal test. How often should I exercise on the Buffalo Protocol? The standard prescription is once daily for 20 minutes at the target heart rate. Some protocols allow twice daily for shorter sessions (15 minutes). Consistency matters more than duration. Daily exercise produces the cumulative autoregulatory retraining that drives recovery. Missing multiple days allows the autonomic dysfunction to re-establish, slowing progress. What if my symptoms do not improve after 2 weeks on the protocol? Lack of improvement after 2 weeks of consistent sub-threshold exercise suggests additional contributing factors: cervical spine dysfunction (the most common co-factor), vestibular dysfunction, oculomotor dysfunction, or psychological factors (anxiety, depression, fear-avoidance). These factors each require specific treatment alongside the aerobic exercise. A multidisciplinary concussion clinic evaluates and treats all contributing systems simultaneously. Is the Buffalo Protocol only for athletes? The protocol applies to all concussion patients regardless of athletic status. The physiology of concussion (autoregulatory impairment, autonomic dysfunction) is identical in athletes and non-athletes. The exercise prescription works the same way for a 45-year-old office worker as for a 17-year-old soccer player. The BCTT and exercise prescription are individualized to each person's capacity, making the protocol universally applicable (Leddy et al., 2019). References Leddy, J. J., et al. (2019). Early subthreshold aerobic exercise for sport-related concussion: a randomized clinical trial. JAMA Pediatrics, 173(4), 319-325. PubMed Leddy, J. J., et al. (2023). Rest and exercise early after sport-related concussion: a systematic review and meta-analysis. British Journal of Sports Medicine, 57(12), 762-770. PubMed