Department of Psychology, Center for Children and Families, Florida International University, Miami, Florida, USA.
Subst Use Misuse. 2021;56(7):1035-1044. doi: 10.1080/10826084.2021.1906279. Epub 2021 Apr 8.
Poor decision-making may represent a risk factor for adverse cannabis-related outcomes, whereas exercise has been linked to better executive functioning and substance use outcomes. This study examines the associations between self-reported exercise and cannabis use (CU) outcomes over 6 months among adolescents, and whether these are mediated by exercise-related effects on decision-making. Participants were 387 adolescents aged 15-18 who completed two assessments 6 months apart. Self-reported past 6-month hours/week of exercise were assessed at baseline. At the 6-month follow-up, participants completed measures assessing past 6-month CU frequency, presence of CU disorder (CUD), and CU-related problems, as well as risky decision-making tasks (Iowa Gambling Task, Game of Dice Task, Cups Task), which were used to derive a latent construct of decision-making. We used prospective mediation to examine the role of decision-making in the relationship between exercise and CU outcomes. More self-reported exercise at baseline predicted greater CU frequency at the 6-month follow-up, but did not predict the presence of a CUD, or cannabis-related problems. After controlling for confounds, baseline exercise did not predict better decision-making at follow-up. Decision-making did not predict CU outcomes, and indirect effects of decision-making were not significant. Contrary to hypotheses, adolescents reporting more exercise at baseline also reported higher CU frequency in our sample. This association may be explained by factors like sample characteristics or sports types, but more research is needed to explore this. Results did not support a mediating role for decision-making in the associations between exercise and CU outcomes.Supplemental data for this article can be accessed online at https://doi.org/10.1080/10826084.2021.1906279.
较差的决策能力可能是导致不良大麻相关后果的一个风险因素，而运动已被证明与更好的执行功能和物质使用结果有关。本研究考察了青少年自我报告的运动与大麻使用（CU）结果在 6 个月内的相关性，以及这些相关性是否受到运动对决策影响的中介作用。参与者是 387 名年龄在 15-18 岁的青少年，他们在 6 个月的时间里完成了两次评估。在基线时评估了过去 6 个月每周的运动时间。在 6 个月的随访中，参与者完成了过去 6 个月 CU 频率、CU 障碍（CUD）的存在和 CU 相关问题的评估，以及风险决策任务（爱荷华赌博任务、骰子游戏任务、杯子任务），这些任务用于得出决策的潜在结构。我们使用前瞻性中介分析来检验决策在运动与 CU 结果之间的关系中的作用。基线时更多的自我报告运动预示着 6 个月随访时 CU 频率更高，但不预示 CUD 的存在或与大麻相关的问题。在控制了混杂因素后，基线运动不能预测随访时的决策能力提高。决策不能预测 CU 结果，决策的间接效应也不显著。与假设相反，在我们的样本中，基线时报告更多运动的青少年也报告了更高的 CU 频率。这种关联可能可以用样本特征或运动类型等因素来解释，但需要更多的研究来探索这一点。结果不支持决策在运动与 CU 结果之间的关联中起中介作用。本文的补充数据可以在 https://doi.org/10.1080/10826084.2021.1906279 在线获取。
