OBJECTIVE: To determine if a sound evoked myogenic potential could be obtained from the triceps with the recording and stimulus parameters routinely used to obtain a vestibular evoked myogenic potential (VEMP) from the sternocleidomastoid. STUDY DESIGN: Prospective study of myogenic potentials recorded from the triceps in healthy subjects. We used a monaural acoustic stimulus and measured the unrectified myogenic potential using surface electromyography electrodes, using response-triggered averaging, on the triceps of 18 subjects. SETTING: University-affiliated otoneurology clinic. PATIENTS: Eighteen healthy adult volunteers (11 women and 7 men), age ranging between 27 and 36 years. MAIN OUTCOME MEASURES: Latencies and amplitudes of the first two waves of the evoked response. RESULTS: : The P1 latency was 36.83 +/- 8.42 ms (range, 26.34-57.99 ms; 95% confidence interval [CI], 33.53-40.14 ms), the N1 latency was 43.74 +/- 8.80 ms (range, 34.67-66.32 ms; 95% CI, 40.29-47.19 ms), the P1-N1 interlatency was 6.90 +/- 1.23 ms (range, 5.21-9.79 ms; 95% CI, 6.42-7.39 ms), and the P1-N1 interamplitude was 93.23 +/- 51.25 microV (range, 16.33-206.62 microV; 95% CI, 73.14-113.32 V). CONCLUSION: A monaural sound stimulus elicits a robust and reproducible surface myogenic potential in triceps muscles.
OBJECTIVE: To determine if a sound evoked myogenic potential could be obtained from the triceps with the recording and stimulus parameters routinely used to obtain a vestibular evoked myogenic potential (VEMP) from the sternocleidomastoid. STUDY DESIGN: Prospective study of myogenic potentials recorded from the triceps in healthy subjects. We used a monaural acoustic stimulus and measured the unrectified myogenic potential using surface electromyography electrodes, using response-triggered averaging, on the triceps of 18 subjects. SETTING: University-affiliated otoneurology clinic. PATIENTS: Eighteen healthy adult volunteers (11 women and 7 men), age ranging between 27 and 36 years. MAIN OUTCOME MEASURES: Latencies and amplitudes of the first two waves of the evoked response. RESULTS: : The P1 latency was 36.83 +/- 8.42 ms (range, 26.34-57.99 ms; 95% confidence interval [CI], 33.53-40.14 ms), the N1 latency was 43.74 +/- 8.80 ms (range, 34.67-66.32 ms; 95% CI, 40.29-47.19 ms), the P1-N1 interlatency was 6.90 +/- 1.23 ms (range, 5.21-9.79 ms; 95% CI, 6.42-7.39 ms), and the P1-N1 interamplitude was 93.23 +/- 51.25 microV (range, 16.33-206.62 microV; 95% CI, 73.14-113.32 V). CONCLUSION: A monaural sound stimulus elicits a robust and reproducible surface myogenic potential in triceps muscles.
Authors: Ian S Curthoys; J Wally Grant; Ann M Burgess; Chris J Pastras; Daniel J Brown; Leonardo Manzari Journal: Front Neurol Date: 2018-05-25 Impact factor: 4.003
Authors: Andrew R Wagner; Olaoluwa Akinsola; Ajit M W Chaudhari; Kimberly E Bigelow; Daniel M Merfeld Journal: Front Neurol Date: 2021-02-09 Impact factor: 4.003
Authors: Maria Clara Motta Barbosa Valente; Aline Tenório Lins Carnaúba; Janise Dal Pai; Kelly Cristina Lira de Andrade; Pedro de Lemos Menezes Journal: Clinics (Sao Paulo) Date: 2020-11-11 Impact factor: 2.365