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Comparing the effects of vestibular rehabilitation with and without lavender oil scents as an olfactory stimulus on balance, fear of falling down and activities of daily living of people with multiple sclerosis: a randomized clinical trial [with consumer summary]
Seddighi-Khavidak M, Tahan N, Akbarzadeh-Baghban A
Disability and Rehabilitation 2022;44(13):3132-3138
clinical trial
4/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

PURPOSE: To evaluate the effect of using lavender oil as an olfactory stimulus with vestibular rehabilitation (VR) on balance, fear of falling down, and activities of daily living of people with multiple sclerosis. METHODS: Forty participants were randomly assigned into experimental and control groups. The experimental group did the VR exercises while smelling the lavender oil scents. The control group did the VR exercises without it. Both groups did the exercises in ten 45-min sessions. We assessed the participants with the Timed Up and Go (TUG) test, Berg Balance Scale (BBS), Fall Efficacy Scale International (FES-I), and the 29-item Multiple Sclerosis Impact Scale (MSIS-29). We did the tests at the baseline and after the last exercise session. RESULTS: The experimental group performed significantly better in the BBS (p = 0.007), TUG (p = 0.045), and FES-I (p = 0.016) tests as well as in the MSIS-29's psychological subscale (p = 0.034) than did the control group. CONCLUSIONS: Using lavender oil as olfactory stimulus while doing the VR exercises can improve balance and reduce fear of falling down compared to doing the VR exercises without it in people with multiple sclerosis.

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