5 environmental diffusers were used for administrating
oil by inhalation. These were placed one in each corner of
therapy room and one in the middle of the circle of participants.
The essential oil dose required to saturate the experimental room
was 2 drops of 2% essential oil ¼ 0.1 mL.16 EG3 participants were
treated with aromatherapy with S. boliviana essential oil and EG4
and EG5 participants were treated at once with aromatherapy with
S. brevicalyx and S. boliviana essential oils respectively and mindfulness
meditation program. All groups had 30 min intervention
sessions from Monday to Saturday during two weeks (12 sessions).
After that, an anxiety self-report instrument was administered
(posttest) to all participants (Fig. 1).