Table 2.

Overview of runners’ monitoring behaviors.

Participants	Monitoring compliance	Response lag (days)	Reminders issued	Device used	Human-computer interface concernsa
1	Yes	1-3	1	Mobile phone	No
2	Yes	1-2	1	Mobile phone	No
3	Nob	1-3	2	Computer	Yes
4	Yes	1-2	0	Computer	No
5	Yes	1-2	0	Mobile phone	No
6	Yes	1-2	1	Computer	No
7	Yes	1-2	1	Mobile phone or tablet	Yes
8	Yes	1-4	3	Mobile phone	No
9	Yes	1-3	1	Computer	No
10	Yes	1-2	1	Computer	No
11	Yes	1-5	2	Computer	No
12	Yes	1-2	0	Computer	Yes
13	Yes	1-3	1	Computer	No
14	Yes	1-3	1	Mobile phone	Yes
15	Yes	1-2	0	Mobile phone	No
16	Yes	1-3	1	Mobile phone or tablet	No
17	Yes	1-2	0	Computer	No
18	Yes	1-2	0	Mobile phone or tablet	No
19	Yes	1-3	1	Mobile phone	No
20	Yes	1-2	0	Computer	No

^aProblems with the human-computer interface for data entry.

^bTechnical problems in the final week.