To update your profile settings, tap your profile icon at the top right of the workouts tab screen. Tap on the profile setting that you would like to change.
The profile options that you can change are the following:

•  Name
•  Date of Birth
• Current Weight
• Height
• Gender

You can also change your settings from this page. The settings options that you can change are:

•  Units – select either Imperial or Metric
•  Intensity Level – select either Light, Moderate or Advanced
• Trainer Audio – select either On or Off
• Timer Sounds – select either On or Off