Before entering the laboratory, participants were requested to abstain from caffeine, tobacco, and alcohol and to eat a small meal or snack.
The central controller is then, in charge of managing the downlink transmissions of the BSs, where at each transmission time and on a per PRB basis, each BS can be requested to abstain from transmitting data.
On the day preceding the tests, all subjects were requested to abstain from alcohol, not to perform any kind of exhausting physical activity, and to go to bed no later than 11 00 p.m.
The remaining 57 were hesitant and requested to abstain.
Participants were requested to abstain from any medication on the day prior to and of testing.
They were requested to abstain from alcohol for at least 24 h prior to their scanning.
All are requested to abstain from seeking treatment for their back or neck outside the study.
All participants were requested to abstain from strenuous exercise 48 h before data collection.
Subjects were requested to abstain from caffeine, smoking, and alcohol for at least 12 hours before assessment was performed.
Participants were requested to abstain from alcohol and strenuous exercise in the 24-h period prior to the main trials.
Participants were requested to abstain from moving and talking in order to minimise artefacts and activity-related CBFV changes.
