Table 2.

Themes, codes, and representative examples of patient and clinician experiences during prototype usability testing (step 3).

Stakeholder, themes, and codes			Representative quotes and minutes from observations and meetings
Patient
	Ease of using the RPMa devices
		Capability and comfort	“Using the pulse oximeter while on the bike was hard.”[patient 3]
		Visibility	Patient struggled to see the screen (of the tablet device) while on the bicycle. [patient 2]
		Navigation	Patient did not know that pressing the Philips icon opened the tablet device and did not know the PINb. [patient 1]
	Technology disruptions
		Wi-Fi, cellular, or Bluetooth connectivity	The (pulse oximeter measurements) were not syncing. At this point (the patient) verbally reported (their heart rate). [patient 1] The (pulse oximeter measurements) were not populating in real time. (The patient) removed (the pulse oximeter) and then replaced it on their finger. [patient 1] When using the tablet device for a 2-way video call, the patient said, “[The clinician] froze.” [patient 2]
	Comfort with ability to perform and use exercise modality and equipment
		Capability and comfort	(The clinician) spent 3 to 4 minutes of (the session) helping the patient adjust (the bicycle). [patient 2] “[The bicycle] feels different than the treadmill.” [patient 1]
		Safety	The clinician stated, “[The patient] wants to make sure [the clinicians] could see them [while exercising on the bicycle].” [patient 1] The clinician stated, “[The patient] needs to make sure [they have] something sturdy to hold on to [during strength training].” [patient 1]
	Flexibility with exercise experience
		Adaptations and flexibility	The clinician allowed a patient to try interval training on the bicycle. When asked, “What did you like the most?” the patient responded, “Interval training.” [patient 3] The clinician stated, “[G]ive flexibility based on patient needs.” [patient 1] The clinician discussed (with the patient) the importance of tailoring exercise to current energy levels. [patient 1]
Clinician
	Ease of using the telehealth platform to remotely monitor patient
		Visibility	During the eCareCoordinator Video Visit (Philips Healthcare): “It’s easy to view the patient with the eCC [eCareCoordinator; Philips Healthcare] video call platform.” [clinician 1] When starting the eCareCoordinator Video Visit: “There’s no way to tell [in the eCareCoordinator platform] that someone is waiting for you on the video call.” [clinician 2]
		Navigation	When monitoring the patient: the clinician could not toggle between the “video visit” tab and “trends” tab in the eCareCoordinator platform. [clinician 2]
	Technology disruptions
		Wi-Fi, cellular, or Bluetooth connectivity	[S]yncing was an issue between pulse oximeter, cuff, and eCC [eCareCoordinator] platform...[clinician] had to enter information manually. [clinician 1] “[T]here seemed to be a longer delay between audio and video...there may be an issue with Wi-Fi strength.” [clinician 1] “[The pulse oximeter reading] seems slower today...want to [verbally] read me the numbers?” [clinician 2] The clinician had to enter the blood pressure measurement into the eCareCoordinator manually. [clinician 2]
	Confidence in using the telehealth platform to safely monitor patient
		Confidence in technology	“The [blood pressure and pulse oximeter] readings [the clinicians] got were pretty accurate.” [clinician 1] “The BP [blood pressure monitor] seemed to work more accurately.” [clinician 2] “The pulse oximeter reading was fine.” [clinician 2]
		Safety concerns	Clinician instructed the patient that “more weight isn’t always better...we want to prevent injury.” [clinician 2] After the survey was completed, [the clinician] was waiting for the blood pressure measurement to come in [to the eCareCoordinator platform], but it never did. The clinician said, “I have no idea what he’s doing.” [clinician 2] [Clinicians] cannot see [the patient’s] feet to determine whether they are wearing appropriate footwear. [clinicians 1 and 2]
Patient and clinician
	Satisfaction
		Positive comments and feedback	The clinicians said that the patient “loved [the home-based model] and was ecstatic [with their experience].” [patient 1] The clinicians said that the patients “seem to like it...they like the equipment.” [patient 2] At the end of the user testing sessions, the patient said, “Thank you again for everything and for the devices.” [patient 1]
	Programming
		Process or workflow	“[The patient] thinks the model works.” [patient 3] “The process itself [the patient] really loved.” [patient 1] The clinician felt that “[the session] was a bit of a learning curve with the patient—but they were happy to go through it.” [patient 2]

^aRPM: remote patient monitoring.

^bPIN: personal ID number.