医師の一分

アクセスカウンタ

zoom RSS 活動的な子どもは眠るのが早い

<<   作成日時 : 2009/07/29 01:09   >>

ブログ気持玉 0 / トラックバック 0 / コメント 0

 親が長い間信じていたとおり、日中に走り回ると子どもは夜早く寝入ると確認された。
 1時間座らせたら、テレビを見ようが本を読もうが、3分以上は眠るのに時間がかかる。
 メルボルンのモナッシュ大学とオークランド大学の研究者は7歳児519人について調査をおこなった。大多数は45分以内に寝入り、平均睡眠潜時は26分であった。
 日中身体的に活動的であった子どもは寝入るのに時間がかからないが、より強い関連性は座っている時間と寝入るための時間である。より早く寝入る子どもは睡眠時間も長い傾向がある。
 子どもの睡眠時間減少に多くの議論が起こっている。短い睡眠時間は肥満や認知能力の低下と関連しており、子どもの健康な睡眠は地域レベルで極めて重要な問題だと強調されるべきである。
---------------------------------------------------
Page last updated at 02:13 GMT, Thursday, 23 July 2009 03:13 UK
Study nails secret of child sleep
http://news.bbc.co.uk/2/hi/health/8163920.stm

画像little boy
He may not have had enough exercise today...

Researchers have confirmed what parents have long believed - running around in the day means your child may well fall asleep faster at night.

But the study of 500 children provides a figure: for every hour they sit, they need three minutes longer to nod off.

Interestingly, it was not relevant what the child did while they sat. TV was no more detrimental than quietly reading.

And the Archives of Disease in Childhood found those who took longer to get to sleep were no worse behaved.

Experts from Monash University in Melbourne and the University of Auckland looked at 519 seven-year-olds.

The majority fell asleep within 45 minutes, and the average "sleep latency" - the time it took - was 26 minutes.

Sleepyhead

Children who were very physically active during the day tended to take less time to fall asleep, but the more prominent association was between being sedentary and taking longer to drift off.

Those who fell asleep faster also tended to sleep for longer. There has been much discussion about the impact of reduced sleep duration on children.

"As short sleep duration is associated with obesity and lower cognitive performance, community emphasis on the importance of promoting healthy sleep in children is vitally important," the researchers wrote.


Activity is not the be all and end all, and shouldn't be encouraged right before bedtime
Mandy Gurney
Sleep specialist

"This study emphasises the importance of physical activity for children, not only for fitness, cardiovascular health and weight control, but also for sleep."

They did not however find any evidence of bad behaviour, as measured by professional charts, among those who took longer to fall asleep. Nor did they find any significantly different sleep latencies for children who went to bed after 9pm.

Mandy Gurney, founder of children's sleep clinic Millpond, said the research was useful confirmation of the benefits of exercise for sleep as well as fitness and weight.

"But activity is not the be all and end all, and shouldn't be encouraged right before bedtime. What's essential is a routine wind-down hour, a quiet time before bed. A warm bath, but no longer than 10 minutes, and then straight into a darkened bedroom.

"That way you make the most of the natural sleep trigger of the warm water, and you can cap it all off with a bedtime story."

-----------------------------------------------------
Arch Dis Child. Published Online First: 24 July 2009. doi:10.1136/adc.2009.157453
Copyright © 2009 BMJ Publishing Group Ltd & Royal College of Paediatrics and Child Health.
Original articles
Falling asleep: the determinants of sleep latency.

Gillian M Nixon 1, John M D Thompson 2, Dug Yeo Han 2, David MO Becroft 2, Phillipa M Clark 2, Elizabeth Robinson 2, Karen E Waldie 2, Chris J Wild 2, Peter N Black 2 and Edwin A Mitchell 2*

1 Monash Institute of Medical Research, Australia
2 University of Auckland, New Zealand

* To whom correspondence should be addressed. E-mail: e.mitchell@auckland.ac.nz.

Accepted 19 April 2009


Abstract

Background: Difficulty falling asleep (prolonged sleep latency) is a frequently reported problem in school-aged children.

Aims: This study aimed to describe the distribution of sleep latency and factors that influence its duration. Methods: 871 children of European mothers were recruited at birth. 591 (67.9%) children took part in follow-up at 7 years of age. Sleep and daytime activity were measured objectively by actigraphy worn for 24 hours.

Results: Complete sleep data were available for 519 children (87.8%) with a mean age of 7.3 years (SD 0.2). Median sleep latency was 26 minutes (interquartile range 13-42 min). Higher mean daytime activity counts were associated with a decrease in sleep latency (-1.2 minutes per 102 movement count per minute, p=0.05). Time spent in sedentary activity was associated with an increase in sleep latency (3.1 minutes per hour of sedentary activity, p=0.01).

Conclusions: These findings emphasize the importance of physical activity for children, not only for fitness, cardiovascular health and weight control, but also for promoting good sleep.

テーマ

関連テーマ 一覧


月別リンク

ブログ気持玉

クリックして気持ちを伝えよう!
ログインしてクリックすれば、自分のブログへのリンクが付きます。
→ログインへ

トラックバック(0件)

タイトル (本文) ブログ名/日時

トラックバック用URL help


自分のブログにトラックバック記事作成(会員用) help

タイトル
本 文

コメント(0件)

内 容 ニックネーム/日時

コメントする help

ニックネーム
本 文
活動的な子どもは眠るのが早い 医師の一分/BIGLOBEウェブリブログ
文字サイズ:       閉じる