Volume and accumulation patterns of physical activity and sedentary time: longitudinal changes and tracking from early to late childhood.
Volume and accumulation patterns of physical activity and sedentary time: longitudinal changes and tracking from early to late childhood.
复制标题
DOI：
10.1186/s12966-021-01105-y
复制
发表时间：
2021-03-17
期刊：
影响因子：
--
通讯作者：
Hesketh KD
中科院分区：
文献类型：
--
作者：
Downing KL;Hinkley T;Timperio A;Salmon J;Carver A;Cliff DP;Okely AD;Hesketh KD
在整个童年时期，身体活动（PA）减少，久坐时间（SED）增加，这两种行为都在跟踪。然而，没有研究检查PA和SED的积累模式（即，长时间的发作、久坐时间的中断频率）随时间变化和跟踪。本研究的目的是探讨纵向变化和跟踪的总体积和积累模式的SED，轻强度PA（LPA），中等强度PA（MPA），强强度PA（VPA）的男孩和女孩。在2008/09年（T1），澳大利亚墨尔本的HAPPY儿童（3- 5岁; n = 758）佩戴ActiGraph GT 1 M加速度计，以客观评估SED、LPA、MPA和VPA。在6- 8岁（T2; n = 473）和9- 11岁（T3; n = 478）时重复这一过程。计算了10个模式变量：SED发作≥ 5、≥ 10、≥ 15和≥ 20 min，LPA发作≥ 1和≥ 5 min，MPA发作≥ 1 min，VPA发作≥ 1和≥ 5 min，以及SED中断（中断> 25次计数15 s− 1）。纵向混合模型检查T1-3的变化，控制T1年龄。广义估计方程评估了三个时间点的跟踪，控制T1年龄和测量之间的时间。分析按性别分层。两种性别的SED和SED中断的总体积和发作次数增加，而LPA的总体积和发作次数减少。女孩的MPA总量略有下降，但两种性别的≥ 1分钟发作时间增加。两种性别的VPA总量均增加，仅男孩的≥ 1分钟发作时间增加。除了所有SED发作≥ 15 min、LPA发作≥ 5 min和MPA发作≥ 1 min（跟踪较弱）外，男孩的所有容量和模式变量均中度跟踪。对于女孩，SED和SED发作≥ 1 min的总追踪强度较强，LPA、MPA和VPA总量、SED发作≥ 5 min和≥ 10 min以及LPA和MPA发作≥ 1 min的追踪强度中等，SED中断、所有SED发作≥ 15 min、LPA发作≥ 5 min和所有VPA发作的追踪强度较弱。SED和PA的模式从儿童早期到晚期都在变化;除了SED中断和VPA，变化是有害的。总交易量和短回合往往比长回合更强烈地跟踪。预防PA下降和SED增加的干预措施从生命早期开始就很重要。
Physical activity (PA) decreases and sedentary time (SED) increases across childhood, with both behaviours tracking. However, no studies have examined how accumulation patterns of PA and SED (i.e., prolonged bouts, frequency of breaks in sedentary time) change and track over time. The aim of this study was to investigate longitudinal changes in and tracking of total volume and accumulation patterns of SED, light-intensity PA (LPA), moderate-intensity PA (MPA), vigorous-intensity PA (VPA) among boys and girls. In 2008/09 (T1), children in HAPPY (3-5y; n = 758) in Melbourne, Australia wore ActiGraph GT1M accelerometers to objectively assess SED, LPA, MPA and VPA. This was repeated at age 6-8y (T2; n = 473) and 9-11y (T3; n = 478). Ten pattern variables were computed: bouts of ≥ 5-, ≥ 10-, ≥ 15- and ≥ 20-min for SED, ≥ 1- and ≥ 5-min for LPA, ≥ 1-min for MPA, ≥ 1- and ≥ 5-min for VPA, and breaks in SED (interruptions of > 25 counts 15 s− 1). Longitudinal mixed models examined changes from T1-3, controlling for T1 age. Generalized estimating equations assessed tracking over the three time points, controlling for T1 age and time between measurements. Analyses were stratified by sex. Total volume and bouts of SED and SED breaks increased, while total volume and bouts of LPA decreased for both sexes. There was a small decrease in total volume of MPA for girls, but time spent in ≥ 1-min bouts increased for both sexes. Total volume of VPA increased for both sexes, with time spent in ≥ 1-min bouts increasing for boys only. All volume and pattern variables tracked moderately for boys, except for all SED bouts ≥ 15-min, LPA bouts ≥ 5-min and MPA bouts ≥ 1-min (which tracked weakly). For girls, total SED and SED bouts ≥ 1-min tracked strongly, total volume of LPA, MPA and VPA, ≥ 5- and ≥ 10-min SED bouts, and ≥ 1-min LPA and MPA bouts tracked moderately, and SED breaks, all SED bouts ≥ 15 min, LPA bouts ≥ 5 min and all VPA bouts tracked weakly. Patterns of SED and PA change from early to late childhood; with the exception of SED breaks and VPA, changes were detrimental. Total volumes and short bouts tended to track more strongly than longer bouts. Interventions to prevent declines in PA and increases in SED are important from early in life.
登录
查看更多内容
DOI：
10.1186/s12966-020-00935-6
发表时间：
2020-03-10
影响因子：
8.7
作者：
Hinkley, Trina;Timperio, Anna;Hesketh, Kylie D.
通讯作者：
Hesketh, Kylie D.
影响因子：
4
作者：
Fletcher，Elly A.;Salmon，Jo;Dunstan，David W.
通讯作者：
Dunstan，David W.
影响因子：
3.4
作者：
Evenson, Kelly R.;Catellier, Diane J.;McMurray, Robert G.
通讯作者：
McMurray, Robert G.
DOI：
10.1038/oby.2003.57
发表时间：
2003-03-01
期刊：
OBESITY RESEARCH
影响因子：
--
作者：
Jackson, DM;Reilly, JJ;Paton, JY
通讯作者：
Paton, JY
DOI：
10.1249/mss.0b013e3182661478
发表时间：
2012-12-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Hinkley, Trina;O'Connell, Eoin;Salmon, Jo
通讯作者：
Salmon, Jo