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  • Perceived Effort in Football Athletes: The Role of Achievement Goal Theory and Self-Determination Theory
    Publication . Monteiro, Diogo; Teixeira, Diogo S.; Travassos, Bruno; Duarte-Mendes, Pedro; Moutão, João; Machado, Sérgio; Luís, Cid
    This study examined the motivational determinants of athletes perceived effort in football considering the four-stage motivational sequence at the contextual level proposed by Hierarchical Model of Intrinsic and Extrinsic Motivation: task-involving climate, basic psychological needs, self-determined motivation (SDM), and perceived effort. Additionally, SEM multi-group analysis across different age-groups (U15, U17, U19, and U21 years) and serial mediation of basic psychological needs (BPNs) and SDM on the task-involving motivational climate and the perceived effort were also analyzed. Two independent samples of male football athletes (N = 403, N = 403), aged 13–20 years were enrolled in this study. The results support the adequacy of the structural model in explaining the perceived effort of football atheltes in all samples under analysis, and was invariant across U17, U19, and U21. However, it was not invariant across U15 and U17, U19 and U21. Furthermore, results from the serial mediation showed significant indirect effects in all samples, supporting self-determination theoretical assumptions, reinforcing the importance of BPNs satisfaction and behavioral regulation in the relation in analysis. The results show that when coaches promote a task-involving climate, the BPNs satisfaction of athletes improves. This climate will facilitate the regulation of their behaviors toward more autonomous forms of motivation, with positive outcomes in the athletes perceived effort.
  • The comparison of Imagery ability in elite, sub-elite and non-elite swimmers
    Publication . Duarte-Mendes, Pedro; Marinho, Daniel; Monteiro, Diogo; Cid, Luís; Paulo, Rui; Serrano, João; Petrica, João
    The ability to generate and control mental images is present in all of us, but it differs from person to person. Therefore, it is important to understand that imagery ability can be changed through training and experimentation, it is not a fixed ability. The aim of this study is to compare imagery ability in elite, sub-elite and non-elite athletes in a sport which involves closed and continuous motor skills, such as swimming. 79 swimmers (male N = 37; female N = 42) at an average age of 17 took part in this study. In order to assess imagery ability, the Movement Imagery Questionnaire 3 was used, Portuguese version (Mendes et al., 2016). After analysis of the results, these show that in each and every imagery modality, the scores in the three groups differ significantly. In kinesthetic and external visual imagery the elite and sub-elite groups’ scores, although not statistically different from each other, are significantly higher than those of the non-elite group. In internal visual imagery, the differences between all the compared pairs of groups are statistically significant. The elite group got the highest scores, followed by the sub-elite group average scores and finally the non-elite group average scores. According to these results, the conclusion is that athletes with better performance show greater imagery ability and that apparently the external visual imagery proved to be the best intervention method among swimming athletes.
  • Assessing Need Satisfaction and Frustration in Portuguese Exercise Instructors: scale validity, reliabity and invariance between gender
    Publication . Rodrigues, Celia F.; Neiva, Henrique; Marinho, Daniel; Duarte-Mendes, Pedro; Teixeira, Diogo S.; Cid, Luís; Monteiro, Diogo
    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.