Rebar Amanda L, Johnston Renee, Paterson Jessica L, Short Camille E, Schoeppe Stephanie, Vandelanotte Corneel
a Physical Activity Research Group, School of Health, Medical, and Applied Sciences , Central Queensland University , Rockhampton , QLD , Australia.
b Appleton Institute, School of Health, Medical, and Applied Sciences , Central Queensland University , Adelaide , SA , Australia.
Behav Med. 2019 Jan-Mar;45(1):1-6. doi: 10.1080/08964289.2017.1361902. Epub 2017 Sep 13.
The most common reported barrier to physical activity is a lack of sufficient time. Just like most resources in economics are finite, so too is time within a day. We utilized a time-utility model to better understand how people are allocating time for physical activity. Additionally, we tested whether the allocation of physical activity time impacts people's perception of "lack of time" as a barrier for physical activity or their likelihood of being sufficiently physical active. Australian adults (N = 725 participants, 54% men) reported their time use throughout their day, perceived lack of time as a barrier to activity, and physical activity. Cluster analysis and χ-tests were used to test the study research questions. People tended to either be entirely inactive (29%) or active while doing either leisure (18%), occupation (18%), transport (14%), or household (22%) activities. Those who were active during their leisure or transport time were most likely to be sufficiently active. There were no significant differences among clusters in how much people perceived that lack of time was a physical activity barrier. The commonly reported barrier of not having enough time to be active might be a fallacy. Although a lack of time is a commonly reported barrier of physical activity, these findings bring to light that increasing physical activity behavior is not as simple as adding more time to the day.
报告中最常见的身体活动障碍是缺乏足够的时间。就像经济学中的大多数资源都是有限的一样，一天中的时间也是有限的。我们使用了一种时间效用模型来更好地理解人们如何分配时间进行身体活动。此外，我们还测试了身体活动时间的分配是否会影响人们将“缺乏时间”视为身体活动障碍的认知，或者他们进行充分身体活动的可能性。澳大利亚成年人（N = 725名参与者，54%为男性）报告了他们一整天的时间使用情况、将缺乏时间视为活动障碍以及身体活动情况。采用聚类分析和χ检验来检验研究问题。人们往往要么完全不活动（29%），要么在进行休闲（18%）、职业（18%）、交通（14%）或家务（22%）活动时保持活跃。那些在休闲或交通时间保持活跃的人最有可能进行充分的身体活动。在人们将缺乏时间视为身体活动障碍的认知程度上，各聚类之间没有显著差异。普遍报告的没有足够时间进行身体活动这一障碍可能是一种谬误。虽然缺乏时间是普遍报告的身体活动障碍，但这些发现表明，增加身体活动行为并不像在一天中增加更多时间那么简单。
