This study has as prime objective to analyze the psychometric properties of the Behavioral Regulation Exercise Questionnaire (BREQ-3) in a sample of Portuguese exercisers and invariance across gender. Two independent samples (448 calibration; 374 validation), aged between 16 and 78 years (M = 40.29; SD = 16.24), of both gender, (495 female; 327 male) were enrolled in this study. The results show that the original model (six factors; 24 items) did not fit to the data in a satisfactory way (χ2 = 977.49; df = 237; B-S p < 0.001; SRMR = 0.07; NNFI = 0.80; CFI = 0.83; RMSEA = 0.08; 90% CI = 0.08–0.09). After removing six items (one for each factor), the model (six factors; 18 items) adjustment improved in a satisfactory way in both samples: calibration (χ2 = 331.86; df = 120; B-S p < 0.001; SRMR = 0.06; NNFI = 0.91; CFI = 0.93; RMSEA = 0.06; 90% CI 0.06–0.07) and validation (χ2 = 254.08; df = 120; B-S p < 0.001; SRMR = 0.04; NNFI = 0.93; CFI = 0.95; RMSEA = 0.06; 90% CI = 0.05–0.06). Results also showed model invariance across gender (ΔCFI ≤ 0.01). The Portuguese version of BREQ-3 (six factors; 18 items) is a valid and reliable measurement instrument to measure behavior regulation underlying self-determination theory in the exercise domain. However, the evidence also indicated that additional studies are needed to address the fragilities of the original model (six factors; 24 items).

The concept of subjective vitality refers to the state of feeling alive and alert; to have energy available to oneself. The aim of the present study was to translate and analyze the psychometric properties of the Portuguese version of the Subjective Vitality Scale in a sample of 935 exercisers, both men (344) and women (591). The results of the confirmatory factor analysis confirmed the good adjustment of the original factorial model (S-B χ 2 = 34.93; p = .000; χ 2 /gl = 3.88; NNFI = .961; CFI = .970; RMSEA = .074 con 90% CI =.049-.101). Also, concurrent validity was obtained through the application of the Portuguese versions of the Rosenberg Self-Esteem Scale and Satisfaction with Life Scale. In the same way, reliability of the scale throughout the analysis of internal and temporary consistency was also demonstrated. The present findings support the use of the Portuguese version of the Subjective Vitality Scale to assess vitality among Portuguese exercisers. ResumenEl concepto de vitalidad subjetiva se refiere a la sensación de estar "vivo" y "alerta"; es decir, de tener energía disponible para sí mismo, reflejando una experiencia psicológica de entusiasmo e inspiración. El propósito de esta investigación fue traducir y analizar las propiedades psicométricas de la versión Portuguesa de la Subjective Vitality Scale, en una muestra de 935 practicantes de ejercicio, ambos hombres (344) y mujeres (591). Los resultados del análisis factorial confirmatorio confirmaron la estructura unifactorial de la escala (S-B χ 2 = 34.93; p = .000; χ 2 /gl = 3.88; NNFI = .961; CFI = .970; RMSEA = .074 con 90% CI = .049 -.101). Asimismo, se obtuvieron resultados que evidenciaron validez concurrente con las versiones portuguesas de la Rosenberg Self-Esteem Scale y de la Satisfaction with Life Scale. Del mismo modo, se documentan evidencias de fiabilidad, analizada como consistencia interna y estabilidad temporal. Los resultados apoyan preliminarmente el uso de la versión portuguesa de la Subjective Vitality Scale en el contexto del ejercicio.Palabras claves: vitalidad subjetiva, autodeterminación, psicometría.

Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription Abstract Assistive Technologies and Ubiquitous Computing can be related since both try to help people in their lives. This common objective motivated us to develop and evaluate a system that puts ubiquitous computing technologies into the rehabilitation process of people with acquired brain injury. Thus, in this paper we present and evaluate a system that shows adaptive manuals for daily life activities for people with acquired brain injury. This first evaluation allowed us to validate our approach and also to extract valuable information about these systems as well as environmental factors that may affect the patients.

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Tendo por base a teoria da autodeterminação, este estudo objetiva a análise do papel mediador da perceção de satisfação das necessidades psicológicas básicas na relação entre a perceção de suporte de autonomia dado pelo instrutor de <em>fitness</em> e indicadores de bem-estar psicológico, em praticantes de exercício. Participaram neste estudo 984 praticantes de <em>fitness</em> em ginásios, de ambos os géneros (531 femininos; 453 masculinos), com idades compreendidas entre os 16 e os 70 anos (<em>M</em>= 31.7; <em>SD</em>= 11.2). Todos os praticantes foram avaliados ao nível da sua perceção de suporte de autonomia dado pelo instrutor de <em>fitness</em>, perceção de satisfação das necessidades psicológicas básicas (competência, autonomia e relação) e bem-estar psicológico (vitalidade subjetiva, satisfação com a vida e autoestima global). Os resultados obtidos, com recurso à análise de equações estruturais, corroboram o papel mediador das necessidades psicológicas básicas na relação entre a perceção de suporte de autonomia e o bem-estar psicológico. Estes resultados clarificam o mecanismo de promoção do bem-estar psicológico em praticantes de exercício, auxiliando no processo de delineamento de intervenções futuras no contexto do <em>fitness </em>com este propósito.