====== Anthropometry Self-measurement ======

Anthropometry self-measurements ([[sections|section]]: [[physical state]]) were performed by participants aged 16 years and older during: 
  * [[4A Visit 1]]


===== Protocol =====
  * 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. 

===== Contra-indications/exclusion criteria ======

Participants did not perform the anthropometry self-measurement in case of: 
  *  Electronic implant (pacemaker, internal defibrillator, insulin pump, neurostrimulator, cochleair hearing implant)
  *   Prostheses: foot, leg, arm, hip, knee, and hand prostheses
  *   Pregnancy
  *   Cardiac arrhythmias
  *   Wearing compression stockings that could not be taken off

===== Validation =====

A validation study was performed to compare the results of the height and weight self-measurements, with the results from the measurements performed by a research nurse. More information will follow. 

===== Variables =====

Will follow.