Vocal fold oscillation mechanics and its influencing factors

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00035411

Enrollment

Registered

2024-10-31

Start date

2022-06-02

Completion date

Unknown

Last updated

2025-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

most subjects are healthy J38.1 J38.3

Interventions

Group 1: Measurements of vocal function including high-speed glottography before and after (0min, 10min, 30min) after intervention of various interventions (stressed whispering, fluid intake, tablets

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: vocally healthy, for one study organic dysphionia

Exclusion criteria

Exclusion criteria: pregnancy, voice complaints

Design outcomes

Primary

Measure	Time frame
Vocal fold vibration characteristics based on the open quotient from the glottal area waveform, measured before, 0min, 10min after an intervention	—

Secondary

Measure	Time frame
Evaluation of audio and electroglottography signals, here the open quotient and regularity measures (jitter, CPP) before, 0min, 10min after an intervention	—

Countries

Germany

Contacts

Public ContactMatthias Echternach

LMU Klinikum

matthias.echternach@med.uni-muenchen.de+4989440073861

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026