Supervised Exercise Therapy using Mobile Health Technology in Patients with Peripheral Arterial Disease: Randomized Controlled Pilot Trial. (Preprint)
BACKGROUND Mobile interventions are intended to digitally nurse complex health care needs in chronic diseases, but they are mainly targeted at general health improvement and neglect disease-specific requirements. Therefore, we designed TrackPAD, a smartphone app to support supervised exercise training (SET) in patients with peripheral arterial disease (PAD). OBJECTIVE The aim of the present pilot study was to evaluate suitability, feasibility, and the impact on a prognosis relevant outcome measure for patients with PAD, the 6-minutes walking test, by using TrackPAD. METHODS Twenty-nine participants with symptomatic PAD were randomized. The study group (n=19) received usual care with additional use of TrackPAD. The control group (n=20) only received usual care. RESULTS The study group improved their 6-minutes walking distance, while the control group decreased their mean distance after 3 months of follow-up (83±72.2 vs. -38.8±53.7 m; p<0.01). The PAD-related quality of life improved significantly in terms of ‘symptom perception’ and ‘limitations in physical functioning’. Users’ feed-back showed increased motivation and a changed attitude to perform SET, while raising the educational background. CONCLUSIONS Besides the rating as a valued support tool by the user group, the mobile intervention TrackPAD was linked to an improvement in prognosis relevant outcome measure combined with an enhanced disease coping. CLINICALTRIAL International Registered Report Identifier (IRRID): DERR1-10.2196/13651