Lau Jamie, Engelen Lina, Bundy Anita
Vancouver, British Columbia, Canada.
Pediatr Exerc Sci. 2013 Feb;25(1):124-37. doi: 10.1123/pes.25.1.124.
After-school hours provide an opportunity for physical activity (PA). Parental perceptions influence children's PA. The aims were to: compare parents' perceptions of children's PA with objectively measured PA; shed light on PA during after-school hours; and compare two electronic devices for collecting data.
Twenty parent-child dyads participated. Children (5-7 years, mean 6.25 ± 0.64) wore Actical accelerometers; their parents responded to activity diaries on electronic devices. Data were collected twice for 4 consecutive weekday afternoons (15.30-19.00).
While parents perceived their children to be quite active, children were, in fact, largely inactive. Parents' responses compared with accelerometer data yielded moderate correlations (r = .44, p < .01). Two thirds of parents' responses were overestimations. Boys were physically more active than girls and had higher PA outdoors than indoors. Girls' PA remained similar indoors and outdoors but parents did not perceive the similarity. Both electronic devices produced similar results and compliance rates.
Parents consistently over-reported their children's PA. Findings have implications for initiatives to increase PA. If parents perceive their children as very active, they may lack motivation to promote PA. Parents' limitations as proxy reporters aside, the similarity of results yielded by the two electronic devices suggests that the choice is a matter of researcher preference.
课余时间为体育活动（PA）提供了机会。父母的认知会影响孩子的体育活动。研究目的是：比较父母对孩子体育活动的认知与客观测量的体育活动情况；了解课余时间的体育活动情况；比较两种用于收集数据的电子设备。
20对亲子参与研究。儿童（5 - 7岁，平均6.25±0.64岁）佩戴Actical加速度计；他们的父母在电子设备上填写活动日记。在连续4个工作日下午（15:30 - 19:00）收集两次数据。
虽然父母认为他们的孩子相当活跃，但实际上孩子大多不活跃。将父母的回答与加速度计数据进行比较，得出中度相关性（r = 0.44，p < 0.01）。三分之二的父母回答存在高估。男孩的身体活动比女孩更活跃，且在户外的体育活动比室内多。女孩在室内和户外的体育活动保持相似，但父母并未察觉到这种相似性。两种电子设备产生了相似的结果和依从率。
父母一直高估他们孩子的体育活动情况。这些发现对增加体育活动的倡议有影响。如果父母认为他们的孩子非常活跃，他们可能缺乏促进体育活动的动力。除了父母作为代理报告者的局限性外，两种电子设备产生的结果相似，这表明选择取决于研究者的偏好。
