Evaluation of Sleep Parameters and Sleep Staging (Slow Wave Sleep) in Athletes by Fitbit Alta HR, a Consumer Sleep Tracking Device by Kawasaki Y, Kasai T, Sakurama Y, Sekiguchi A, Kitamura E, Midorikawa I, Shiroshita N, Kawana F, Ogasawara E, Kitade M, Koikawa N, Matsuda T

“…Yu Kawasaki,1 Takatoshi Kasai,2– 5 Yuko Sakurama,6 Akiko Sekiguchi,6 Eri Kitamura,1 Itsuki Midorikawa,7 Nanako Shiroshita,4 Fusae Kawana,3 Etsuko Ogasawara,6,8 Mari Kitade,1,6 Natsue Koikawa,6,8 Takao Matsuda9 1Department of Obstetrics and Gynecology, Juntendo University Graduate School of Medicine, Tokyo, Japan; 2Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan; 3Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan; 4Department of Cardiovascular Management and Remote Monitoring, Juntendo University Graduate School of Medicine, Tokyo, Japan; 5Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan; 6Japanese Center for Research on Women in Sport, Juntendo University, Tokyo, Japan; 7Akita Northern Happinets, Akita, Japan; 8School of Health and Sports Science, Juntendo University, Chiba, Japan; 9Department of Gynecology, National Hospital Organization Nishi-Beppu National Hospital, Oita, JapanCorrespondence: Takatoshi Kasai, Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, Japan, Tel/fax +81 3-6873-2869, Email kasai-t@mx6.nisiq.netPurpose: Sleep is an essential factor for athletes, and it is important to intervene in sleep to manage it. …”
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