Please assess the completion status of the following clinical trial:

Trial Title: Testing of a Valsalva Assist Device (VAD) in Healthy Volunteers Performing a Valsalva Manoeuvre

Study Design Characteristics:
- Allocation: None
- Intervention Model: SEQUENTIAL
- Observational Model: None
- Primary Purpose: OTHER
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Adult Volunteers between 18 and 60 years old from University of Exeter or RD\&E Hospital staff~* Sinus rhythm on initial ECG~* Self-reported good health~Exclusion Criteria:~* Any regular medication other than the oral contraceptive~* Previous cardiovascular or respiratory disease~* Any contraindication to performing a VM strain. (Eg. Known aortic stenosis, recent myocardial infarction, glaucoma, retinopathy)~* Pregnancy~* Any ECG abnormality~* Any contra-indication to postural modification (any reason the participant can't lie flat and have both legs lifted to 45 degrees, eg prosthetic hip~* Inability or refusal to give written consent to take part~* Observations of heart rate, oxygen saturations, respiratory rate or blood pressure outside the normal range. Specifically blood pressure less than 100 systolic~* Caffeinated drinks within 6 hours prior to testing~* The use of stimulant drugs or alcohol within 24 hours prior to testing

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: t

Study Arms:
- Four VM's (Type: OTHER): Healthy volunteers undergo repeated VM's - Device: Supine VM VAD, Supine VAD manometer Modified VM VAD, Modified VM Manonmeter

Based on this trial design, predict the completion outcome and termination type (if applicable).