The study asked older adults to track their nutrition and exercise over two weeks (too short) and report on usability issues they experienced. They were also asked about their attitudes toward to technology. The authors did a separate analysis of both trackers to uncover any design issues that could be problematic for older adults.
Usability problems the researchers found included low color contrast between icons and the screen background, small fonts, and inconsistent navigation bars among the Web sites. Study participants saw the technology as inaccurate when tracking step counts and sleep patterns. Many also reported difficulty remembering to log their information and use the device. This problem could be mitigated by nagware or more prominent reminders.