Some patients unable to return home from hospital due to physical or mental illness will be discharged to a rehabilitation home to restore strength and rehabilitate. This study attempts to examine if it is possible to continuously monitor the vital signs in patients discharged to a rehabilitation center and whether wearable devices will detect more abnormal vital signs than the rehabilitation facility, as well as complication and readmission rates.

Patients who are ready to leave the hospital but are deemed unable to return home are discharged to a rehabilitation center to regain strength and performance.

Vital signs are only measured when deemed necessary at the rehabilitation center, in contrast to hospital wards, where vital signs are measured intermittently and manually every 8-12 hours.

Wearable devices that continuously monitor a patient's vital signs may be able to detect patients who are deteriorating, as abnormal vital signs often precede a physiologic decline This study aims to determine whether it is possible to continuously monitor patients discharged to a rehabilitation center and detect more abnormal vital signs than measurements from the rehabilitation center. By attaching three wearable devices to 20 patients, we wished to record the vital signs for up to 96 hours, documenting abnormal vital signs as well as complications - and readmission rates.

Inclusion Criteria:

• discharged to the rehabilitation center after surgery or; diagnosed with ischemic heart disease, chronic heart disease, apoplexia cerebri, chronic obstructive pulmonary disease, or diabetes.
• Inclusion less than 72 h from rehabilitation admission

Exclusion Criteria:

• Unable to give informed consent
• Implanted pacemaker or cardioverter-defibrillator
• allergic to plaster, plastic, silicone

Hospital patients discharged to a rehabilitation center