Research Article
Usability Study of a Wireless Monitoring System among Alzheimer’s Disease Elderly Population
Table 2
Behavior of the subjects towards new monitoring systems.
| System 1 | Subject 1 | Subject 2 | Subject 3 | Subject 4 |
| Day 1 | WTU: low | WTU: n/a | WTU: n/a | WTU: high | ETL: high | ETL: low | ETL: high | ETL: high | TTA: n/a | TTA: short | TTA: short | TTA: short | WTK: low | WTK: high | WTK: medium | WTK: high | NOE: low | NOE: many | NOE: none | NOE: none | LOS: low | LOS: high | LOS: indifferent | LOS: indifferent | IWA: none | IWA: none | IWA: none | IWA: none | Did not want to wear it. After 30 minutes the subject forgot about it and was happy to remove it at the end of day. | No resistance. Then the patient removed it and played with it. At the end, he did not want to give it back. |
No resistance. | No resistance. The patient was already using a pouch around the waist. |
| Day 2 | WTU: medium | WTU: high | LOS: none | WTK: medium | WTK: medium | NOE: few | | | NOE: low | | Totally indifferent. | Indifferent. | LOS: indifferent | Happy to wear it. | | | Light resistance to wear it initially. | | | |
| Day 3 | WTU: high | NOE: none | | | TTA: long | LOS: indifferent | | | WTK: high | | | | NOE: none | Indifferent. | | | Happy to wear it. The family members convinced the subject to wear it saying it was meant for stomach pain relief. | | | |
| System 2 | Subject 1 | Subject 2 | Subject 3 | |
| Night 1 | WTU: high | WTU: medium | WTU: low | | ETL: low | ETL: low | ETL: high | | TTA: n/a | TTA: n/a | TTA: short | | WTK: low | WTK: low | WTK: medium | | NOE: few | NOE: high | NOE: none | | LOS: low | LOS: low | LOS: low | | IWA: high | IWA: none | IWA: low | | No resistance at the beginning (the patient loves hats). The patient removed it after some time. | The patient kept for some minutes then removed it. After three times the patient did not want to wear it anymore. | No resistance but the patient did not like it. | |
| Night 2 | NOE: many | WTU: low | WTU: medium | | IWA: low | WTK: low | WTK: medium | | | NOE: high | LOS: medium | | The subject wore it but moved it many times. | | | | | Removed it many times during night. | No resistance. | |
| Night 3 | ETL: medium | TTA: average | | | TTA: average | WTK: medium | | | WTK: medium | NOE: none | | | NOE: none | LOS: indifferent | | | LOS: indifferent | | | | The subject was willing to wear it and did not move at all during night. | The subject was monitored from bedside all night to make sure she wore it. | | |
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