Table 2.
Results for four simulated activities for 5 minutes each for 20 participants for segments ≥5 seconds.
| Activity | Shortest segment (s), mean (SD) | Longest segment (s), mean (SD) | Total number of segments, mean (SD) | Total duration of segments (s), mean (SD) | Total recording containing clean ballistocardiogram data, % |
| Watching a video | 13.1 (13.5) | 78.1 (42.4) | 9.3 (3.6) | 264.6 (24.9) | 88.2 |
| Reading | 5.9 (1.3) | 38.5 (18.6) | 12.5 (2.5) | 177.9 (50.5) | 59.3 |
| Conversation | 5.4 (0.4) | 20.8 (11.1) | 9.8 (3.3) | 97.1 (41.3) | 32.3 |
| Using a computer | 5.4 (0.6) | 18.5 (11.2) | 9 (3.9) | 89.1 (56.1) | 29.7 |