188 research outputs found

    Morbid exercise behaviour and eating disorders: a meta-analysis

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    Background and aims: This study was aimed at examining the relationship between self-reported symptoms of morbid exercise behaviour (MEB) and eating disorders (ED) using meta-analytic techniques. Methods: We systematically searched MEDLINE, PsycINFO, Web of Science, SciELO and Scopus. Random effects models were used to compute pooled effect sizes estimates (r). The robustness of the summarized estimates was examined through sensitivity analyses by removing studies one at a time. Results: Sixty-six studies comprising 135 effect-sizes (N 5 21,816) were included. The results revealed: (a) small-sized relationship in the case of bulimic symptoms (r 5 0.19), (b) small-(r 5 0.28) to medium-sized relationships (r 5 0.41) in the case of body/eating concerns, (c) medium-sized relationships in the case of overall ED symptoms (r 5 0.35) and dietary restraint (r 5 0.42). Larger effect sizes were observed in the case of overall ED symptoms in clinical, younger, and thinner populations, as well as when employing a continuously-scored instrument for assessing ED or the Compulsive Exercise Test for assessing MEB. Larger effect sizes were also found in female samples when the ED outcome was dietary restraint. Conclusions: The identified gaps in the literature suggest that future research on the topic may benefit from: (a) considering a range of clinical and non-clinical populations in terms of exercise modalities or diagnosed ED, (b) addressing a wide range of ED symptomatology, and (c) employing longitudinal designs that clarify the temporal direction of the relationship under consideration

    Theoretical conceptualisations of problematic exercise in psychometric assessment instruments: a systematic review

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    Background and aims: The aim of the present systematic review was to identify psychometric tools developed to assess problematic exercise in order to identify and compare their theoretical con-ceptualisations on which they are based. Methods: A systematic literature search was conducted in the electronic databases Web of Science, Scielo, PsychINFO, PsycTEST and SCOPUS from their inception to January 2020. Results: Seventeen assessment instruments met the eligibility criteria to be included in the present review. The instruments were classified according to their conceptualisation into five groups: (i) problematic exercise as an end of an exercise continuum, (ii) problematic exercise as a means of regulating body size and weight, (iii) problematic exercise as dependence, (iv) problematic exercise as a behavioural addiction and (v) no clear conceptualisation. Discussion: The results suggest that the conceptualisations of the assessment instruments have resulted in a strong dichotomy in relation to the primary or secondary character of the problematic exercise that might be limiting the capacity of the instruments to adequately capture the multidimensionality of this construct. Conclusions: Given the interest in understanding the complexity surrounding the problematic exercise, future research should develop more comprehensive definitions of this construct. This would allow a greater conceptual consensus to be reached that would allow progress to be made in the study of the problematic exercise
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