title: Optimizing acceptability and feasibility of an evidence-based behavioral intervention for obese adults with obesity-related co-morbidities or additional risk factors for co-morbidities: an open-pilot intervention study in secondary care.
abstract: OBJECTIVE
  To test and optimize the feasibility and acceptability of a physical activity (PA) and healthy eating behavior change intervention for obese adults with obesity-related co-morbidities or additional risk factors for co-morbidities.
  
  
  METHODS
  Open-pilot intervention study using an uncontrolled pre and post design with ongoing measures on intervention acceptability and feasibility. Participants received 5 weekly nurse-led one-hour long group sessions. Acceptability and feasibility were assessed throughout. PA, dietary behavior and weight were measured before and after the intervention.
  
  
  RESULTS
  Of 74 consenting participants, 61 (82%) received and 47 (64%) completed the intervention. Average ratings of intervention materials and components by participants ranged between 4.1 and 4.9 out of 5. Average facilitator satisfaction rating was 90% (range 75-100%). The intervention delivery was feasible as indicated by ratings and comments from participants and the facilitator. Participants lost -0.86 kg of weight t(45)=3.84, p=0.0001, and increased PA by an additional 1.6 (SD=2.7) sessions/week, t(31)=-3.3, p=0.002. No significant dietary differences emerged.
  
  
  CONCLUSIONS
  The intervention was acceptable to the facilitator and participants and feasible for delivery. Several intervention aspects were further optimized.
  
  
  CONCLUSIONS
  The current study outlines a PA and dietary behavior change pilot intervention coupled with a systematic and transparent process of intervention optimization.
authors: Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle, UK. stephan.dombrowski@ncl.ac.uk
authors: Stephan U
authors: SU
authors: Dombrowski
authors: Falko F
authors: FF
authors: Sniehotta
authors: Marie
authors: M
authors: Johnston
authors: Iain
authors: I
authors: Broom
authors: Utkarsh
authors: U
authors: Kulkarni
authors: Jenny
authors: J
authors: Brown
authors: Lynne
authors: L
authors: Murray
authors: Vera
authors: V
authors: Araújo-Soares
mesh_terms: D000328:Adult; D000368:Aged; D001521:Behavior Therapy; D015992:Body Mass Index; D015897:Comorbidity; D019317:Evidence-Based Medicine / Q000379:methods*; D015444:Exercise; D005240:Feasibility Studies; D005247:Feeding Behavior; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D009765:Obesity / Q000453:epidemiology / Q000628:therapy*; D010342:Patient Acceptance of Health Care; D010865:Pilot Projects; D012307:Risk Factors; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires