Adaptation and validation to the context of the Spanish physical-sport activity of the Mindfulness Inventory for Sport in adult practitioners

The objective of this study was to adapt and validate the Mindfulness Inventory for Sport (MIS) in adults in Spain, since it is the first measurement scale of mindfulness oriented to sport but there is no evidence to examine its validity in the Spanish version. For this, a sample of 337 physical exercise practitioners with an average age of 41 years was used, who were measured the mindfulness and the level of physical exercise in free time. Various descriptive, internal consistency, correlation and confirmatory factor analyzes were carried out. After confirmatory factor analysis, the scale (χ2 (33, 337) = 175.56, p = .000, χ2/gl = 2.01, CFI = .90, IFI = .90, RMSEA = .07) presented adequate values in addition to be invariant by sex These results support the three dimensions of the scale on consciousness, absence of prejudice and reorientation. The internal consistency obtained from the respective dimensions was above .70. Consciousness correlated negatively with the absence of prejudices and positively with reorientation and physical exercise in free time, in addition, the latter correlated positively with reorientation. This study has made it possible to provide a valid and reliable scale with initial evidence to evaluate mindfulness in Spanish practitioners of physical and sports activity