A relação da preferência e tolerância pela intensidade do exercício em praticantes recreacionais de crossfit

  • Filipe César Rosa dos Santos

Student thesis: Master's Thesis

Abstract

Objective. The preference and tolerance constructs may be considered relevant traits for understanding the relationships between exercise intensity and several variables (e.g., enjoyment, exercise adherence, subjective vitality and frequency) and the preference for and tolerance of the intensity of exercise (PRETIE-Q) has been used to better understand those relationships. CrossFit is characterized mainly by the intensities present in its execution and, although it is a relatively recent training program, the number of participants had a considerable growth in the past few years estimating that about five million people worldwide practice CrossFit. Nonetheless, the reasons that lead people to adhere and continue practicing CrossFit, despite the high intensity and the known negative relationships between training at such intensities and affective responses, are yet unclear. That said, the present dissertation has the general objective of understanding the relationship between of preference and tolerance for exercise intensity in a population of recreational CrossFit participants. For that matter two studies were developed, being the first a systematic review aiming to analyze the utility and feasibility of the preference for and tolerance of exercise intensity constructs in physical activity settings. Regarding the second study (a cross-sectional study), we had three main objectives were: (1) to define the preference and tolerance profiles in CrossFit recreational participants; (2) to analyze the accordance of intensity-traits with the intensity of current training; (3) to analyze the relationship between the agreement profile and its moderation effects with enjoyment, vitality, intention, and frequency. Methods. A systematic review was made in order to analyze the existing evidence about the use of the Preference for and Tolerance of the Intensity of Exercise Questionnaire (PRETIE Q). To attain that objective, a broad search of the literature was conducted on the following databases: PubMed, SportDISCUS, PsycINFO and B-on (the last search was conducted in July 2022) and the systematic review was written following the recommendations by the PRISMA protocol. A cross-sectional study was also made with a sample of 330 recreational CrossFit participants enrolled in 15 boxes across the national territory. Preference for exercise intensity, tolerance to exercise intensity, exercise enjoyment, subjective vitality, intention to continue exercising, frequency, quality of the experience and intensity-trait agreement were assessed through psychometric questionnaires. In terms of statistical analysis, descriptive tests, Pearson correlations and moderation tests were performed. Results. The systematic review, qualitatively analyzed 36 studies published between 2005 and 2022, depicted results suggesting that both constructs (i.e.., preference and tolerance) appear to be useful and feasible in a broad variety of physical activity settings, and no relevant limitations were reported of its use. In the cross-sectional study, the results showed that participants demonstrated above midpoint score results for preference, tolerance, enjoyment and subjective while intention and quality of the experience depicted very high scores. Both preference agreement and tolerance-agreement showed positive results meaning that the intensity of most participants’ current training is in accordance with their preference and tolerance. Positive correlations were present between most of the variables and none of the tested models depicted moderation effect. Conclusion. From the systematic review, we can conclude that the preference and tolerance intensity traits appear to provide a simple but useful assessment in the relation with several physical activity outcomes. In the cross-sectional study, the results showed that CrossFit recreational participants depict similar intensity-trait preference/tolerance when compared with other non-HIIT activity participants suggesting that, these constructs should be related solely with the individuals’ characteristics and not with the activities in which they are enrolled.
Date of Award2022
Original languageEnglish
SupervisorDiogo dos Santos Teixeira (Supervisor)

Keywords

  • PHYSICAL ACTIVITY
  • FITNESS
  • WELL-BEING
  • CROSSFIT
  • TID:203110110

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