German version of the outcome expectations for exercise scale-2 : Psychometric properties in geriatric patients after hip or pelvic fractures with fear of falling.

Physical exercise is associated with many health benefits. Especially for older adults it is challenging to achieve an appropriate adherence to exercise programs. The outcome expectations for exercise scale 2 (OEE-2) is a 13-item self-report questionnaire to assess negative and positive exercise outcome expectations in older adults. The aim of this study was to translate the OEE‑2 into German and to assess the psychometric properties of this version. The OEE‑2 was translated from English into German including a forward and backward translation process. Psychometric properties were assessed in 115 patients with hip/pelvic fractures (76% female, mean age 82.5 years) and fear of falling during geriatric inpatient rehabilitation. Principal component analyses could confirm a two-factor solution (positive/negative OEE) that explained 58% of the total variance, with an overall internal reliability of α = 0.89. Cronbach’s α for the 9‑item positive OEE subscale was 0.89, for the 4‑item negative OEE subscale 0.79. The two subscales were correlated with rs = 0.49. Correlations of the OEE total score were highest with the perceived ability to manage falls, prefracture leisure time activities and prior training history (rs = 0.35–0.41). These results revealed good internal reliability and construct validity of the German version of the OEE‑2. The instrument is valid for measuring physical exercise outcome expectations in older, German-speaking patients with hip or pelvic fractures and fear of falling.