.....Along with this type of assessment before return-to-play could be had the “Prague Concussion in Sport Group” outlined six levels that should also be followed before return-to-play can be followed. This procedure only progressed if only at each level the athlete remained asymptomatic, or free of any MTBI symptoms. The first level is the most basic, involving absolutely activity and complete rest. The second if level entails light aerobic exercise such as simple walking or the use of a stationary bike. No resistance training shal be performed though at this time due to the increased risk of heightened blood pressure, which as previously stated can be attributed to MTBI symptoms.