Validity of measuring preoperative fitness using Seismofit
Research type
Research Study
Full title
The validity of a seismocardiography device to estimate peak oxygen uptake in patients awaiting major elective surgery
IRAS ID
326252
Contact name
Alasdair F O'Doherty
Contact email
Sponsor organisation
University of Northumbria at Newcastle
Duration of Study in the UK
1 years, 0 months, 1 days
Research summary
Physical fitness levels of people waiting for a planned operation are often measured using an exercise test. This is because fitness levels help doctors make a plan to improve each person’s chances of a successful recovery after their planned operation. The exercise test requires skilled staff, expensive equipment, a 1 hour appointment, and the patient to exercise heavily during the test. \nVentriject, a small to medium sized enterprise, have designed a device called Seismofit that estimates fitness levels of people from a measurement taken whilst laying down. It measures the vibrations of the chest wall caused by the beating heart and uses this information with additional information, such as height, weight and sex, to estimate fitness. The measurement takes around 5 minutes to perform, does not require heavy exercise, expensive equipment or skilled staff.\nThe Seismofit device was shown to be accurate in young fairly fit people. It has not been tested in people who undergo an exercise test before an operation, who are less fit on average compared to the people that the device was originally tested on. It is likely that the calculations used to estimate fitness levels with the Seismofit device will need to be adjusted for people waiting for an operation. \nThere are two parts to this study. The first part aims to estimate up to 50 people’s fitness with the Seismofit device and use directly measured fitness from their standard exercise test before their operation to adjust the calculations for estimating fitness. The second part of this study aims to have a further 50 people undergo the Seismofit device measurement and compare the estimated fitness level with the results from the standard exercise test before an operation. This is to see if the Seismofit device is valid at estimating fitness in people awaiting surgery.
REC name
North West - Greater Manchester East Research Ethics Committee
REC reference
23/NW/0125
Date of REC Opinion
22 May 2023
REC opinion
Further Information Favourable Opinion