Investigators will use a stationary bike protocol to investigate whether patients with post concussion syndrome benefit from adding exertion training to a vestibular rehabilitation program.

Investigators examine the effect of aerobic exercise testing and training on individuals with concussion who are currently experiencing symptoms and examine the effect of aerobic exercise in combination with traditional vestibular rehabilitation.

This is a randomized controlled single blind pilot study testing the hypothesis that the combination of aerobic exercise plus vestibular rehabilitation will result in greater reduction of symptoms of dizziness and imbalance compared to vestibular rehabilitation alone.

Inclusion Criteria:

1. History of concussion >14 days, <6 months
2. One or more of the following symptoms after most recent head injury: headache, dizziness, fatigue, irritability, insomnia, concentration or memory difficulty)
3. Age range - 18-70
4. Access to stationary bicycle
5. Ability to read and write sixth grade English

Exclusion Criteria:

1. Inability to participate in aerobic exercise for any reason
2. Pre-existing or current neurological or autonomic disease including persistent symptoms form previous concussion
3. Major depressive disorder
4. Litigation
5. Increased cardiac risk
6. Currently taking, Beta Blockers, or Anticonvulsants