Marentes-Castillo María, Castillo Isabel, Tomás Inés, Álvarez Octavio
Department of Social Psychology, University of Valencia, 46010 Valencia, Spain.
National Council for Humanities, Science and Technology, Mexico City 03940, Mexico.
Sports (Basel). 2024 Jan 29;12(2):41. doi: 10.3390/sports12020041.
(1) Background: Insufficient physical activity in adolescents remains an important issue for health promotion. Given the current relevance of understanding the adoption and maintenance of moderate and vigorous physical activity (MVPA), the aim of this study was to analyze, in a sample of adolescents, the role of grit personality as an antecedent of healthy eating and healthy weight (HEW) self-efficacy and its implications for the practice of MVPA. (2) Methods: Participants were 987 adolescents (597 girls, 390 boys) aged between 15 and 19 years from Mexico and Spain. The Spanish versions of the grit personality scale, the healthy eating and weight self-efficacy scale and the global physical activity questionnaire were used to measure the variables of interest. (3) Results: Mediated regression analysis showed that grit personality was not directly related to MVPA practice. However, the results indicate the significant relationship between grit personality and HEW self-efficacy, as well as the positive and significant relationship of this self-efficacy on MVPA practice. HEW self-efficacy totally mediated the relationship between grit personality and MVPA in both boys and girls. (4) Conclusions: These results suggest that having a grit personality (i.e., having interest and perseverance) is not enough for adolescents to be physically active, but that perceiving oneself as effective in having a healthy diet and healthy weight may be the key for adolescents to move more. At the intervention level, we suggest targeting an enhancement of young people's competence to eat healthily and regulate their weight as a strategy to enhance the performance of more MVPA, with a possible transfer between healthy behaviors (spill over).
(1) 背景：青少年身体活动不足仍是健康促进方面的一个重要问题。鉴于目前理解中等强度和剧烈身体活动（MVPA）的采用和维持情况具有重要意义，本研究的目的是在青少年样本中分析坚毅人格作为健康饮食和健康体重（HEW）自我效能感的前因的作用及其对MVPA实践的影响。(2) 方法：参与者为来自墨西哥和西班牙的987名15至19岁的青少年（597名女孩，390名男孩）。使用西班牙语版的坚毅人格量表、健康饮食和体重自我效能感量表以及全球身体活动问卷来测量相关变量。(3) 结果：中介回归分析表明，坚毅人格与MVPA实践没有直接关系。然而，结果表明坚毅人格与HEW自我效能感之间存在显著关系，并且这种自我效能感对MVPA实践有正向且显著的关系。在男孩和女孩中，HEW自我效能感完全中介了坚毅人格与MVPA之间的关系。(4) 结论：这些结果表明，拥有坚毅人格（即有兴趣和毅力）对于青少年进行身体活动来说是不够的，但认为自己在拥有健康饮食和健康体重方面有效可能是青少年更多运动的关键。在干预层面，我们建议将提高年轻人健康饮食和控制体重的能力作为一种策略，以增强更多MVPA的表现，并可能在健康行为之间产生转移（溢出效应）。
