1.   Go to Control Panel - Users - Manage Users
2.   Type the username into the search field 
3.   Press Enter or click Search
4.   Locate the specific user and click to highlight
   
5.   Once the user is highlighted, scroll down to User Information
6.   Click Edit
   
7.   The user's profile will pop-up in the profile dialog box
8.   Make the necessary changes to the profile. 
     If enabled you should also be able to update their Measurements and Goals as well as view the Assessments and History.
9.   Once you've made the necessary changes click Save