The relationship between diving bradycardia and heart rate recovery

• Project/Area Number: 26750340
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied health science
• Research Institution: Waseda University
• Principal Investigator: Konishi Masayuki 早稲田大学, スポーツ科学学術院, 助教 (10711187)
• Research Collaborator: Sakamoto Shizuo 早稲田大学, スポーツ科学学術院, 教授 (00266032) ; Kawano Hiroshi 国士舘大学, 文学部, 准教授 (40508256)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
• Keywords: 自律神経 / 潜水反射試験 / 副交感神経 / 加齢 / 心肺体力 / 運動後心拍回復 / トレーニング / 潜水徐脈 / 性差 / 若年者 / 高齢者

Outline of Final Research Achievements

Diving bradycardia has been observed to occur due to facial cooling and breath-holding, and reflected parasympathetic regulation. The purpose of this study was to investigate the effects of age and physical fitness on diving bradycardia and post-exercise heart rate recovery. The present study suggests that diving bradycardia and heart rate recovery both decreased with increasing age, and both decreased in people with low physical fitness than in people with high physical fitness. Diving bradycardia may be affected by ageing and physical fitness, and evaluate parasympathetic regulation easily.

Research Products

• [Journal Article] Mild Decrease in Skin Temperature Reduces the Heart Rate during Moderate Exercise (2017)
  • Author(s): Masayuki Konishi、Hiroki Tabata、Karina Ando、Hyeon-Ki Kim、Mio Nishimaki、Mi Xiang、Shizuo Sakamoto
  • Journal Title: Journal of Sports Science Volume: 5 Issue: 6 Pages: 305-312
  • DOI: 10.17265/2332-7839/2017.06.002
  • Peer Reviewed / Open Access
• [Journal Article] Effects of Different Intensities of Endurance Exercise in Morning and Evening on the Lipid Metabolism Response (2016)
  • Author(s): Kim H-K, Ando K, Tabata H, Konishi M, Takahashi M, Nishimaki M, Xiang M, Sakamoto S
  • Journal Title: Journal of Sports Science and Medicine Volume: 15 Pages: 467-476
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Diurnal variation in the diving bradycardia response in young men (2016)
  • Author(s): Konishi M, Kawano H, Xiang M, Kim HK, Ando K, Tabata H, Nishimaki M, Sakamoto S
  • Journal Title: Clinical Autonomic Research Volume: 26 Issue: 2 Pages: 135-140
  • DOI: 10.1007/s10286-016-0342-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Autonomic regulation in physically fit and recreationally active young and older men (2017)
  • Author(s): Konishi, M., Kawano, H., Tabata, H., Kim, H.K., Xiang, M., Sakamoto, S.
  • Organizer: 22nd Annual Congress of the European College of Sport Science
  • Int'l Joint Research
• [Presentation] 肥満者の潜水徐脈反応は運動トレーニングにより変化するか？ (2017)
  • Author(s): 小西真幸, 金鉉基, 田端宏樹, 中村宣博, 坂本静男
  • Organizer: 第72回日本体力医学会
• [Presentation] 朝または夕方の12週間の運動が身体組成および代謝に及ぼす影響 (2017)
  • Author(s): 金 鉉基, 小西真幸, 田端宏樹, 中村宣博, 髙橋将記, 柴田重信, 坂本静男
  • Organizer: 第72回日本体力医学会
• [Presentation] Mild decrease in skin temperature inhibits heart rate elevation during moderate exercise, but does not affect metabolism (2016)
  • Author(s): Konishi, M., Tabata, H., Ando, K., Kim, H.K., Nishimaki, M., Xiang, M., Sakamoto, S
  • Organizer: 21st Annual Congress of the European College of Sport Science
  • Place of Presentation: Vienna, Austria
  • Year and Date: 2016-07-06
  • Int'l Joint Research
• [Presentation] A correlation between bradycardia during cold face test and heart rate recovery immediately after exercise (2014)
  • Author(s): Konishi M, Kim H-K, Ando K, Tabata H, Nishimaki M, Xiang M, Sakamoto S
  • Organizer: 19th Annual Congress of the European College of Sport Science
  • Place of Presentation: Amsterdam
  • Year and Date: 2014-07-02 – 2014-07-05