Applicability of a Web-Based, Individualized Exercise Intervention in Patients With Liver Disease, Cystic Fibrosis, Esophageal Cancer, and Psychiatric Disorders: Process Evaluation of 4 Ongoing Clinical Trials

Daniel Pfirrmann   ¹ , Dipl sportwiss ;   Nils Haller   ^{1, 2} , MEd ;   Yvonne Huber   ³ , Dr med ;   Patrick Jung   ² , PD Dr med ;   Klaus Lieb   ² , Prof Dr med ;   Ines Gockel   ⁴ , Prof Dr med ;   Krystyna Poplawska   ⁵ , Dr med ;   Jörn Markus Schattenberg   ³ , PD Dr med ;   Perikles Simon   ¹ , Prof Dr med, Dr rer nat

¹ Department of Sports Medicine, Disease Prevention and Rehabilitation, Institute of Sports Science, Johannes Gutenberg University, Mainz, Germany

² Department of Psychiatry and Psychotherapy, University Medical Center, Johannes Gutenberg University, Mainz, Germany

³ Department of Medicine I, University Medical Center, Johannes Gutenberg University, Mainz, Germany

⁴ Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital, Leipzig, Germany

⁵ Pediatric Pulmonology, Children's Hospital, University Medical Center of the Johannes Gutenberg University, Mainz, Germany