背景:尚不清楚将强制性的干预措施作为体育(PE)班级分配并旨在促进青少年的体育锻炼(PA)是否可以养成健康的步行习惯,这将允许在强制性和促进的干预完成后实现进一步的改进。
目的:本研究的目的是(1)调查是否,在使用了一段时间的移动追踪器应用程序后,强制性地将其提升为体育课作业,青少年在不再强制使用和推广使用时继续使用;(2)确定PA水平是否有变化,身体成分,当应用程序的使用是强制性的和推广的,当它既不是强制性的,也不是推广的,以及青少年的健康;和(3)分析协变量是否成熟状态,性别,和特定的应用程序使用可以产生影响。
方法:共有357名接受义务教育的学生(平均年龄13.92,SD1.91y)参加了这项研究。进行了一项随机对照试验,包括2个连续10周的干预措施。参与者PA级别,身体成分,和适应度在基线(T1)测量,经过10周的强制和推广的应用程序使用(T2),在非强制性和非促销应用程序使用10周后(T3)。实验组(EG)中的每个参与者在放学后使用4个选定的步骤跟踪器移动应用程序中的1个。
结果:结果表明,当应用程序的使用既不是强制性的,也不是作为体育课任务推广时,只有少数青少年(18/216,8.3%)继续步行练习。在强制性和促进干预期(T1vsT2)之后,3个皮肤褶皱的总和减少(平均差[MD]1.679;P=.02)以及PA水平的改善(MD-0.170;P<.001),最大摄氧量(MD-1.006;P<.001),反运动跳跃试验(MD-1.337;P=.04),卷曲试验(MD-3.791;P<.001),记录EG中的俯卧撑试验(MD-1.920;P<.001)。然而,仅在PA水平和卷曲试验中,EG的T1和T2之间的变化明显大于对照组。因此,当比较T1和T3之间的测量结果时,在EG组和对照组之间没有观察到身体成分(P=.07)或健康(P=.84)的显著变化.协变量是成熟度状态,性别,和使用的特定应用程序在大多数进行的分析中显示出显着的效果。
结论:一段强制性和推广使用步数追踪移动应用程序的时期有利于青少年的身体成分和健身变量,但并未在该人群中养成健康的步行习惯;因此,当这些应用程序的使用不再是强制性的和推广的时候,获得的效果消失了。
背景:ClinicalTrials.govNCT06164041;https://clinicaltrials.gov/study/NCT06164041。
BACKGROUND: It is not known whether an intervention made mandatory as a physical education (PE) class assignment and aimed at promoting physical activity (PA) in adolescents can create a healthy walking habit, which would allow further improvements to be achieved after the mandatory and promoted intervention has been completed.
OBJECTIVE: The aims of this study were to (1) investigate whether, after a period of using a step tracker mobile app made mandatory and promoted as a PE class assignment, adolescents continue to use it when its use is no longer mandatory and promoted; (2) determine whether there are changes in the PA level, body composition, and fitness of adolescents when the use of the app is mandatory and promoted and when it is neither mandatory nor promoted; and (3) analyze whether the covariates maturity status, gender, and specific app used can have an influence.
METHODS: A total of 357 students in compulsory secondary education (age: mean 13.92, SD 1.91 y) participated in the study. A randomized controlled trial was conducted consisting of 2 consecutive 10-week interventions. Participants\' PA level, body composition, and fitness were measured at baseline (T1), after 10 weeks of mandatory and promoted app use (T2), and after 10 weeks of nonmandatory and nonpromoted app use (T3). Each participant in the experimental group (EG) used 1 of 4 selected step tracker mobile apps after school hours.
RESULTS: The results showed that when the use of the apps was neither mandatory nor promoted as a PE class assignment, only a few adolescents (18/216, 8.3%) continued the walking practice. After the mandatory and promoted intervention period (T1 vs T2), a decrease in the sum of 3 skinfolds (mean difference [MD] 1.679; P=.02) as well as improvements in the PA level (MD -0.170; P<.001), maximal oxygen uptake (MD -1.006; P<.001), countermovement jump test (MD -1.337; P=.04), curl-up test (MD -3.791; P<.001), and push-up test (MD -1.920; P<.001) in the EG were recorded. However, the changes between T1 and T2 were significantly greater in the EG than in the control group only in the PA level and curl-up test. Thus, when comparing the measurements taken between T1 and T3, no significant changes in body composition (P=.07) or fitness (P=.84) were observed between the EG and the control group. The covariates maturity status, gender, and specific app used showed a significant effect in most of the analyses performed.
CONCLUSIONS: A period of mandatory and promoted use of step tracker mobile apps benefited the variables of body composition and fitness in adolescents but did not create a healthy walking habit in this population; therefore, when the use of these apps ceased to be mandatory and promoted, the effects obtained disappeared.
BACKGROUND: ClinicalTrials.gov NCT06164041; https://clinicaltrials.gov/study/NCT06164041.