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Randomized Controlled Trial
Telephone Health Coaching and Remote Exercise Monitoring (TeGeCoach) in Peripheral Arterial Occlusive Disease—a Randomized Controlled Trial.
- Farhad Rezvani, Dirk Heider, Hans-Helmut König, Lutz Herbarth, Patrick Steinisch, Franziska Schuhmann, Hannes Böbinger, Gundula Krack, Thomas Korth, Lara Thomsen, Daniela Patricia Chase, Robert Schreiber, Mark-Dominik Alscher, Benjamin Finger, Martin Härter, and Jörg Dirmaier.
- Dtsch Arztebl Int. 2024 Apr 19 (Forthcoming).
BackgroundSupervised exercise programs are commonly used to treat intermittent claudication (IC). Home-based exercise programs have been developed to lower barriers to participation. We studied the effects of one such program (TeGeCoach) on self-reported walking ability in patients with IC.MethodsIn a pragmatic, multicenter, randomized and controlled trial (registration number NCT03496948), 1982 patients with symptomatic IC, insured by one of three German statutory health-insurance carriers, received either telephone health coaching with remote exercise monitoring (TeGeCoach; n = 994) or routine care (n = 988). The primary outcome was the change in Walking Impairment Questionnaire (WIQ) scores 12 and 24 months after the start of the intervention (intention-to-treat analysis). The secondary outcomes were health-related quality of life, symptoms of depression or anxiety, health competence, patient activation, alcohol use, and nicotine dependence.ResultsThere was a significant difference between arms in favor of TeGeCoach in the WIQ (p<0.0001). Patients in the TeGeCoach arm had WIQ scores that were 6.30 points higher at 12 months (Bonferroni-corrected 95% CI [4.02; 8.59], Cohen's d = 0.26) and 4.55 points higher at 24 months ([2.20; 6.91], d = 0.19). They also fared better in some of the secondary outcomes at 12 months, including physical health-related quality of life and patient activation, with at least small effect sizes (d > 0.20). The average daily step count was no higher in the TeGeCoach group.ConclusionThe observed reductions of symptom burden indicate the benefit of home-based exercise programs in the treatment of intermittent claudication. Such programs expand the opportunities for the guideline-oriented treatment of IC. Future studies should address the effect of home-based exercise programs on clinical variables, e.g., the 6-minute walk test.
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