During our participants’ first ‘baseline’ visit at one of 22 centres across the UK, we carried out physical assessments.

The information allows researchers to look at how health conditions impact participants’ memory, activity, senses and other bodily functions.

Physical measurements data at a glance

General physical measures

Participants’ height, weight, waist and hip circumference, lung capacity, body composition (muscle and fat mass), hand grip strength, heel bone density and blood pressure.

  • Current availability
    • 500,000 participants
    • Repeat measures were taken for 20,000 participants who attended a second baseline assessment, as well as for 90,000 participants who attended an imaging assessment

    Explore further on our data browser, Showcase.

Arterial stiffness

Participants’ arterial pulse-wave velocity, which is the speed of the blood pressure pulse as it propagates through the circulatory system.

  • Current availability
    • 200,000 participants
    • Repeat measures were taken for 20,000 participants who attended a second baseline assessment, as well as for 90,000 participants who attended an imaging assessment

    Explore further on our data browser, Showcase.

Vision

Participants’ visual acuity, autorefraction (a measure of how light changes as it comes into the eye), inner-eye pressure and eye-surgery complications.

  • Current availability
    • 150,000 participants
    • Repeat measures were taken for 20,000 participants who attended a second baseline assessment, as well as for 3,000 participants who attended a repeat imaging assessment

    Explore further on our data browser, Showcase.

Hearing

Participants’ ability to identify spoken words when background noise is present.

  • Current availability
    • 200,000 participants
    • Repeat measures were taken for 20,000 participants who attended a second baseline assessment, as well as for 90,000 participants who attended an imaging assessment

    Explore further on our data browser, Showcase.

Memory

During baseline assessment, participants completed a series of touchscreen tests for memory. Most of these were similar to the tests participants completed for the cognitive function questionnaire.

  • Current availability
    • 500,000 participants
    • Repeat measures were taken for 20,000 participants who attended a second baseline assessment, as well as for 90,000 participants who attended an imaging assessment

    Explore further on our data browser, Showcase.

Fitness

Participants’ heart rate measured with a 4-lead electrocardiogram while they cycled for six minutes on a stationary bike.

Activity monitor data

Participants wore an activity monitor for one week.

12-lead electrocardiogram (ECG) data

Electrical activity of participants’ heart at rest.

Access UK Biobank physical measurements data

Researchers can explore all physical measurements data on our data browser, Showcase

Physical measurements data research stories

Read a selection of stories about how healthcare is being changed by discoveries made with physical measurements.

Five extra minutes of walking per day could avert up to 10% of early deaths, exercise-tracking data from more than 135,000 people over 40 suggest.

Post-pandemic brains appear almost six months older than they should, scans from more than 16,000 UK Biobank participants have revealed.

An algorithm built with ChatGPT-like technology predicts more than 1000 health conditions – something that could help doctors to provide better care for their patients.

An artificial-intelligence algorithm trained on brain images and movement data from 20,000 UK Biobank participants can spot early signs of Alzheimer’s and Parkinson’s disease.

Explore our other data categories

Magnetic resonance images, bone-density scans, carotid artery ultrasound and more

Proteins, metabolites, infectious disease markers and other biomarkers

Genotyping, exome and whole-genome information

Linked electronic medical records, including hospital stays, cancer diagnoses and causes of death

Participants’ information on health and lifestyle collected via online or touchscreen questionnaires

Participants’ self-reported data on health and lifestyle

Derived data on participants’ environment, such as local air and noise pollution