Anthropometry self-measurement was the first measurement during visit 1, preceding the blood pressure self-measurement and measurements performed by a research nurse in the examination room.
When registering at the reception desk, participants completed a digital contraindication questionnaire to exclude participants with a contra-indication.
If no contraindications were present, the participant received a barcode that could be used to identify themselves at the self-measurement boot.
Anthropometry self-measurement was performed with a SECA mBCA555. After scanning the barcode, the participant followed written instructions (presented on a poster on the wall) to perform the measurement. Instructions include the request to remove heavy clothing (jackets/pullovers), to empty pockets (i.e. keys, mobile phone and wallet removed), shoes and socks and to step on the SECA device with bare feet and stand upright. A bell was present in the boot to request assistance from an employee.
First, length and weight were measured. Subsequently, a bio-impedence measurement was performed.