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      Assessing Need Satisfaction and Frustration in Portuguese Exercise Instructors: scale validity, reliabity and invariance between gender Translated title: Evaluación de la satisfacción y la frustración de las necesidades en los instructores portugueses de ejercicios: validez de escala, confiabilidad e invariancia entre los géneros Translated title: Avaliando a Satisfação e Frustração das Necessidades em Português Instrutores de Exercício: validade da escala, fiabilidade e invariância entre géneros

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          Abstract

          ABSTRACT Objective: The aim of the present study was to validate the Basic Psychological Need Satisfaction and Frustration Scale in Exercise for fitness instructors. Methods: Data from 477 exercise professionals (319 males, 158 females) was collected. Results: CFA supported the adapted and validated six-factor model: [χ2(237) = 1096.796, χ2/df= 4.63; B-S p < .001, CFI = .930, TLI = .918, SRMR= .0366, RMSEA = .079 (CI90% = .069, .089)], assessing satisfaction and frustration of basic psychological needs in Portuguese exercise professionals. Moreover, the analysis revealed acceptable composite reliability, and construct validity of the adapted version. Results revealed nomological validity, as well as invariance between male and female. No differences were found across latent means, and magnitude effects were trivial between gender. Conclusion: These results support the use of the adapted scale in exercise professionals, showing measurement invariance between gender. This scale is able to measure how exercise professionals experience satisfaction and frustration of basic needs when prescribing exercise to individuals in fitness context.

          Translated abstract

          RESUMEN Objetivo: El objetivo del presente estudio fue validar la Escala de Satisfacción y Frustración de Necesidades Psicológicas Básicas en el Ejercicio para instructores de ejercicio físico. Métodos: Se recopilaron datos de 477 profesionales del ejercicio (319 hombres, 158 mujeres). Resultados: CFA apoyó el modelo de seis factores adaptado y validado: [χ2 (237) = 1096.796, χ2 / df = 4.63; B-S p <.001, CFI = .930, TLI = .918, SRMR = .0366, RMSEA = .079 (CI90% = .069, .089)], evaluando la satisfacción y la frustración de las necesidades psicológicas básicas en los profesionales del ejercicio portugués. Además, el análisis reveló una validez en la confiabilidad compuesta, constructo y nomológica aceptables de la versión adaptada, así como invariabilidad entre hombres y mujeres. No se encontraron diferencias entre las medias latentes, y los efectos de magnitud fueron triviales entre los géneros. Conclusión: estos resultados apoyan el uso de la escala adaptada en los profesionales del ejercicio, que muestran la invariancia de la medición entre los géneros. Esta escala es capaz de medir cómo los profesionales del ejercicio experimentan la satisfacción y la frustración de las necesidades básicas, y cómo regulan los comportamientos interpersonales.

          Translated abstract

          RESUMO Objetivo: O objetivo deste estudo consistiu na validação do Basic Psychological Need Satisfaction and Frustration Scale in Exercise em instrutores de fitness. Métodos: Recolhemos dados de 477 profissionais de exercício físico (319 masculino, 158 feminino). Resultados: A análise CFA suporta o modelo de 6-factores adaptado e validado: [χ2(237) = 1096.796, χ2/df= 4.63; B-S p < .001, CFI = .930, TLI = .918, SRMR= .0366, RMSEA = .079 (CI90% = .069, .089)], avaliando a satisfação e frustração das necessidades psicológicas básicas em instrutores profissionais portugueses de exercício físico. Além disso, a análise revela fiabilidade compósita aceitável e validade dos construtos da versão adaptada. Os resultados revelam validade nomológica, bem como invariância entre sexo masculino e feminino. Não foram encontradas diferenças entre as médias latentes, e a magnitude dos efeitos foi trivial entre géneros. Conclusão: Estes resultados suportam o uso desta escala adaptada em profissionais do exercício físico, mostrando ser invariante entre géneros. Esta escala é capaz de medir como os técnicos profissionais de exercício físico experienciam a satisfação e frustração das necessidades básicas aquando da prescrição de exercício físico para clientes de exercício no contexto do fitness.

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          Exercise autonomous motivation predicts 3-yr weight loss in women.

          This study evaluated exercise-related predictors of successful long-term weight control in women by analyzing the extent to which sustained exercise participation and self-determination theory (SDT)-based exercise motivation variables mediated the impact of a behavioral weight control intervention on 3-yr weight change. Longitudinal randomized controlled trial consisting of a 1-yr SDT-based intervention and a 2-yr follow-up with 221 female participants (means ± SD: age = 37.6 ± 7 yr, body mass index = 31.6 ± 4.1 kg·m(-2)). The tested model incorporated experimentally manipulated perceived need support, motivational regulations, and 2-yr exercise adherence as mediators of the intervention's impact on 3-yr weight change. Paths were tested using partial least squares analysis. Where there were significant intervening paths, tests of mediation were conducted. Treatment had significant effects on 1- and 2-yr autonomous regulations, 2-yr physical activity, and 3-yr weight change, fully mediated by the tested paths (effect ratio = 0.10-0.61). Moderate and vigorous exercise at 2 yr had a significant effect (P < 0.001) on weight loss success at 3 yr and partially mediated the effect of treatment on weight change. The 2-yr autonomous regulation effects on follow-up weight change were only partially mediated by physical activity (effect ratio = 0.42). This application of SDT to physical activity and weight management showed that not all types of motivation predict long-term behavioral outcomes and that sustained moderate and vigorous exercise mediated long-term weight change. It provides strong evidence for a link between experimentally increased autonomous motivation and exercise and long-term weight loss maintenance. Results highlight the importance of interventions targeting the internalization of exercise behavioral regulation and making exercise and physical activity positive and meaningful experiences rather than simply focusing on immediate behavior change in overweight/obese women.
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            Assessing need-supportive and need-thwarting interpersonal behaviours: The Interpersonal Behaviours Questionnaire (IBQ)

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              Can Interpersonal Behavior Influence the Persistence and Adherence to Physical Exercise Practice in Adults? A Systematic Review

              Objective: Motivation seems to be a fundamental indicator of long-term physical exercise adherence. Self-Determination Theory (SDT) argues that social environment plays a central role in the satisfaction of basic psychological needs, which might directly affect the quality of one's motivation. Individuals who appear to be more self-determined tend to persist longer at certain behaviors. Therefore, this body of work intends to analyze the relationship between motivational variables and behavioral outcomes in the exercise context, having as theoretical background the Self-Determination Theory. Methods: This systematic review was conducted through an electronic search on Web of Science, PubMed, SPORTDiscus, and PsycINFO. Data such as instruments, main predictors and results were collected from studies published between 1985 and 2018. A total of 35 empirical studies were considered for a detailed analysis. Results: Results showed the relevance of autonomy support performed by exercise professionals, as well as the major contribution that these behaviors have toward the satisfaction of basic psychological needs, besides the inherent benefits of developing more autonomous regulations. According to the literature, few studies have analyzed interpersonal thwarting behavior and the way this relates to basic psychological needs' frustration. Nether less, there seems to be a negative relationship between less self-determined regulations and exercise practice. Conclusion: Despite the existence of numerous cross-sectional studies that demonstrate positive correlations between SDT and behavioral outcomes in the exercise context, longitudinal research that analyzes all six dimensions of interpersonal behaviors and their relationship with persistence and adherence to exercise proves to be crucial. However, according to this review, interventions based on SDT appear to be fundamental when it comes to promote the maintenance of a long-term exercise practice.
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                Author and article information

                Journal
                cpd
                Cuadernos de Psicología del Deporte
                CPD
                Universidad de Murcia (Murcia, Región de Murcia, Spain )
                1578-8423
                1989-5879
                2019
                : 19
                : 1
                : 233-240
                Affiliations
                [2] orgnameInstituto Politécnico de Castelo Branco Portugal
                [3] orgnameUniversidade Lusófona do Porto Portugal
                [4] orgnameSport Science School of Rio Maior (ESDRM-IPSantarém) Portugal
                [5] orgnameResearch Center in Sport Sciences, Health Sciences and Human Development (CIDESD), Portugal
                [1] orgnameUniversidade da Beira Interior orgdiv1Department of Sports Science Portugal
                Article
                S1578-84232019000100233 S1578-8423(19)01900100233
                10.6018/cpd.347331
                ce4b172d-ed12-46d2-8b44-ebb33d4135ff

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 International License.

                History
                : 15 December 2018
                : 23 September 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 34, Pages: 8
                Product

                SciELO Spain


                comportamientos interpersonales,comportamentos interpessoais,instrutores de fitness,necessidades básicas,exercício,Teoria da Autodeterminação,instructores de ejercicio,necesidades básicas,ejercicio,teoría de la autodeterminación,exercise instructors,interpersonal behaviors,basic needs,exercise,self-determination theory

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