Abstract

Objective

Purpose. Daily physical activity (PA) is effective in supporting cognitive and physical health. However, many Canadians do not meet the public health recommendation of at least 150 mins/week of moderate-to-vigorous PA. The current study examined individual differences in traits such as motivation (intrinsic-IM, extrinsic-EM), and competitiveness, as well as executive abilities (strategic planning; SP) in predicting physical activity and sedentary behaviour.

Methods

Method. 102 university students ages 18 to 30 (M = 20.78 years; 74% female) were recruited from a mid-sized Canadian city. Using a formula that differentially weighted moderate and vigorous activity (measured with the International PA Questionnaire), we fit a linear model predicting PA within the past week by SP (Executive Function Index), IM and EM (Global Motivation Scale), and competitiveness (Revised Competitiveness Scale).

Results

Results. Only competitiveness predicted PA within the past week (β = 0.309, p = 0.001). Follow-up regressions indicated enjoyment of the activity being the most predictive component (β =0.231, p = 0.017). Both EM (β = 0.202, p = 0.015) and IM (β = −0.223, p = 0.012) predicted sedentary behaviour when accounting for competitiveness and demographics (age, gender).

Conclusions

Conclusions. Strategic planning and motivation did not predict exercise within the past week and therefore did not appear to serve as precursors to PA engagement in this university sample. Competitiveness, and in particular the enjoyment of the activity, significantly predicted exercise engagement; however, IM was negatively associated with sedentary behaviour, whereas EM was positively associated, suggesting motivational differences in sedentary behaviour but not physical exercise. Further research is required to account for individual differences in physical activity engagement.

中文翻译：

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A-31竞争能力使年轻大学生脱颖而​​出

摘要

客观的

目的。日常体育锻炼（PA）可有效支持认知和身体健康。但是，许多加拿大人不符合每周至少150分钟的中度至剧烈PA的公共健康建议。目前的研究检查了个体在动机（内在性，内在性和外在性）和竞争力等特征方面的差异，以及在预测体育活动和久坐行为方面的执行能力（战略规划； SP）。

方法

方法。从加拿大中型城市招募了102名年龄在18至30岁（M = 20.78岁； 74％的女性）的大学生。使用差异加权的中等强度和剧烈运动的公式（使用国际PA问卷进行测量），我们拟合了一个线性模型，该模型通过SP（执行功能指数），IM和EM（全球动机量表）以及竞争力（修订的竞争力量表）。

结果

结果。在过去一周内，只有竞争力能预测PA（β= 0.309，p = 0.001）。后续回归表明，享受活动是最可预测的成分（β= 0.231，p = 0.017）。EM（β= 0.202，p = 0.015）和IM（β= -0.223，p = 0.012）在预测竞争力和人口统计数据（年龄，性别）时都预测了久坐行为。

结论

结论 策略性规划和动机无法预测过去一周内的运动，因此似乎不充当该大学样本中PA参与的先驱。竞争能力，尤其是活动的乐趣，显着预测了锻炼的参与度；但是，IM与久坐行为呈负相关，而EM与久坐行为呈正相关，这表明久坐行为的动机存在差异，但体育锻炼却没有。需要进行进一步的研究以解决体育锻炼参与中的个体差异。