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 the follow-up at 7 years of age. Sleep and daytime activity were measured objectively by an actigraph worn for 24 h. 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). 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 emphasise the importance of physical activity for children, not only for fitness, cardiovascular health and weight control, but also for promoting good sleep.
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 the follow-up at 7 years of age. Sleep and daytime activity were measured objectively by an actigraph worn for 24 h. 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). 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 emphasise the importance of physical activity for children, not only for fitness, cardiovascular health and weight control, but also for promoting good sleep.
Authors: Michelle-Marie Peña; Sheryl L Rifas-Shiman; Matthew W Gillman; Susan Redline; Elsie M Taveras Journal: Sleep Date: 2016-09-01 Impact factor: 5.849
Authors: Megan E Jensen; Peter G Gibson; Clare E Collins; Jodi M Hilton; Fiona Latham-Smith; Lisa G Wood Journal: Sleep Breath Date: 2012-03-13 Impact factor: 2.816
Authors: Francisco B Ortega; Jonatan R Ruiz; Idoia Labayen; Lydia Kwak; Jaanus Harro; Leila Oja; Toomas Veidebaum; Michael Sjöström Journal: Eur J Appl Physiol Date: 2011-03-05 Impact factor: 3.078
Authors: Anu-Katriina Pesonen; Noora M Sjöstén; Karen A Matthews; Kati Heinonen; Silja Martikainen; Eero Kajantie; Tuija Tammelin; Johan G Eriksson; Timo Strandberg; Katri Räikkönen Journal: PLoS One Date: 2011-08-23 Impact factor: 3.240
Authors: Yingyi Lin; Mark S Tremblay; Peter T Katzmarzyk; Mikael Fogelholm; Gang Hu; Estelle V Lambert; Carol Maher; Jose Maia; Timothy Olds; Olga L Sarmiento; Martyn Standage; Catrine Tudor-Locke; Jean-Philippe Chaput Journal: Prev Med Date: 2017-12-07 Impact factor: 4.637
Authors: Najaf Amin; Karla V Allebrandt; Ashley van der Spek; Bertram Müller-Myhsok; Karin Hek; Maris Teder-Laving; Caroline Hayward; Tõnu Esko; Josine G van Mill; Hamdi Mbarek; Nathaniel F Watson; Scott A Melville; Fabiola M Del Greco; Enda M Byrne; Edwin Oole; Ivana Kolcic; Ting-Hsu Chen; Daniel S Evans; Josef Coresh; Nicole Vogelzangs; Juha Karjalainen; Gonneke Willemsen; Sina A Gharib; Lina Zgaga; Evelin Mihailov; Katie L Stone; Harry Campbell; Rutger Ww Brouwer; Ayse Demirkan; Aaron Isaacs; Zoran Dogas; Kristin D Marciante; Susan Campbell; Fran Borovecki; Annemarie I Luik; Man Li; Jouke Jan Hottenga; Jennifer E Huffman; Mirjam Cgn van den Hout; Steven R Cummings; Yurii S Aulchenko; Philip R Gehrman; André G Uitterlinden; Heinz-Erich Wichmann; Martina Müller-Nurasyid; Rudolf Sn Fehrmann; Grant W Montgomery; Albert Hofman; Wen Hong Linda Kao; Ben A Oostra; Alan F Wright; Jacqueline M Vink; James F Wilson; Peter P Pramstaller; Andrew A Hicks; Ozren Polasek; Naresh M Punjabi; Susan Redline; Bruce M Psaty; Andrew C Heath; Martha Merrow; Gregory J Tranah; Daniel J Gottlieb; Dorret I Boomsma; Nicholas G Martin; Igor Rudan; Henning Tiemeier; Wilfred Fj van IJcken; Brenda W Penninx; Andres Metspalu; Thomas Meitinger; Lude Franke; Till Roenneberg; Cornelia M van Duijn Journal: Eur J Hum Genet Date: 2016-05-04 Impact factor: 4.246
Authors: Nanna Julie Olsen; Tine Buch-Andersen; Mina Nicole Händel; Louise Mai Ostergaard; Jeanett Pedersen; Charlotte Seeger; Maria Stougaard; Maria Trærup; Kate Livemore; Erik Lykke Mortensen; Claus Holst; Berit Lilienthal Heitmann Journal: BMC Public Health Date: 2012-08-01 Impact factor: 3.295