Figure 1 - Results from the Rivermead Post Concussion Questionnaire RPQ-3 score for Study A – Case 1 and 2 - conducted at first intervention and after the intervention. RPQ-3 score includes symptoms of headache, dizziness and nausea. Each symptom is scored from 0 to 4 – 0=not experienced at all, 1=no longer a problem, 2=a mild problem, 3=a moderate problem, 4=a severe problem. RPQ-3 range: 0-12