Effect of meso-cycle prolonged exercise induced improvement in cardiovagal reactivation

中周期延长运动诱导改善心血管再激活的效果

• 批准号: 12680053
• 负责人: MURO M.
• 金额: $ 2.24万
• 依托单位: Toho University School of Medicine
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12680053/
• 关键词: heart rate; cardiovagal activation; age; central command; physical activity; 呼吸; 心拍数; 心臓迷走神経活動; 加齢; central command; 身体活動; 心臓副交感神経再興奮; 有酸素運動; RRI; 軽運動

Cardiovagal function declines with increasing age. We tested the hypothesis whether age-related delay in cardiovagal reactivation is associated with age and habitual physicalactivity after cessation of exercise, and that is related to responses rapid cessation of central command inhabitual prolonged meso-cycle exercise subjects. Cardiovagal reactivation was examined inhealthy 22 children (8-9 yrs) and 98 adults ( young group, 19-39 yrs; middle-age group, 40-59 yrs; old group, 60-79 yrs), who were either sedentary or habitual physical activity, by using sequence analysis of time constant of recovery heart rate (HR_<TC>) and decay rate for 5 sec (HR_<DR>) immediately after cessation of moderate pedaling exercise. HR_<TC> was progressively slower with increasing age. HR_<TC> was different between habitual physical activity and sedentary group within age groups (p<0.05). HR_<TC> in children were markedly faster than young group in habitual physical activity (p<0.05). On the other hand, HR_ … More <DR> was progressively slower with increasing age. HR_<DR> was not different between habitual physical activity and sedentary group within age groups, but HR_<TC> in sedentary subjects decreased slowly than habitual physical activity subjects. HR_<DR> was different between child group and either middle-age group or old group exercise in both habitual physical activity and sedentary subjects (p<0.05). Our data demonstrate that HR_<TC> in habitual physical activity subjects is well preserved with increasing age, while HT_<TC> in children were markedly faster than young group in habitual physical activity (p<0.05). On the other hand, HR_<DR> was progressively slower with increasing age. HR_<DR> was not different between habitual physical activity and sedentary group within age groups, but HR_<TC> in sedentary subjects decreased slowly than habitual physical activity subjects. HR_<DR> was different between child group and either middle-age group or old group exercise in both habitual physical activity and sedentary subjects (p<0.05). Our data demonstrate that HR_<TC> in habitual physical activity subjects is well preserved with increasing age, while HR_<TC> in sedentary subjects appears to be prolonged closely. These results suggest that the habitual physical activity could be very useful for the maintenance of central cardiac regulation, such as central command and/or the cardiovagal baroreflex sensitivity, and that the decreased HR_<TC> could be the neuroautonomic control that helps to protect old subjects from cardiac diseases Less

迷走神经功能随年龄增长而下降。我们检验了年龄相关的心迷走神经再激活延迟是否与年龄和运动停止后的习惯性体力活动有关的假设，以及是否与长时间运动受试者中枢命令的快速停止有关的假设。本文采用序列分析法，对22名8-9岁儿童和98名成年人（青年组，19-39岁;中年组，40-59岁;老年组，60-79岁）停止中等强度蹬踏运动后即刻的心率恢复时间常数（HR_1）和5秒衰减率（HR_2）进行了研究。<TC><DR>随着年龄的增长，HR_（1/2）逐渐减慢。<TC>各年龄组中，习惯性体力活动组与久坐组HR_（1/2）有显著性差异（P &lt;0.05）。<TC>在习惯性体力活动中，儿童组心率明显快于青年组（p &lt;0.05）。<TC>另一方面，HR-- ...更多信息 <DR>随着年龄的增长而逐渐变慢。在年龄组内，习惯性体力活动组和久坐组的HR_（1/2）无显著性差异，但久坐组HR_（1/2）下降较习惯性体力活动组慢。<DR><TC>儿童组与中年组、老年组运动时的心率差异有统计学意义（p &lt;0.05）。<DR>结果表明，习惯性体力活动组的HR_（1/2）随年龄增长而保持较好，而HT_（1/2）在习惯性体力活动中儿童组明显快于青年组（p &lt;0.05）。<TC><TC>另一方面，随着年龄的增长，HR_（1/2）逐渐变慢。<DR>在年龄组内，习惯性体力活动组和久坐组的HR_（1/2）无显著性差异，但久坐组HR_（1/2）下降较习惯性体力活动组慢。<DR><TC>儿童组与中年组、老年组运动时的心率差异有统计学意义（p &lt;0.05）。<DR>我们的数据表明，在习惯性体力活动的人的HR_随年龄的增长而保持良好，而久坐的人的HR_似乎延长密切。<TC><TC>这些结果表明，习惯性体力活动对维持心脏的中枢性调节（如中枢指令和/或心迷走神经压力反射敏感性）是非常有用的，而心率的降低可能是神经自主调节，有助于保护老年人免受心脏疾病的影响。<TC>

项目成果

Muro, M., Tadano, C.et al.: "Comparison of time constant and instantaneous decay rate of recovery heart rate"Adv.Exerc.Sports Physiol.. 8(4). 155 (2002)

Muro, M., Tadano, C.等人：“恢复心率的时间常数和瞬时衰减率的比较”Adv.Exerc.Sports Physiol.. 8(4)。

Masuo Muro et al.: "Comparison of Time Constant and Decay Rate of Recovery Heart Rate in Aging"Advances in Exercise and Sports Physiology. 7・4. 167 (2001)

Masuo Muro等：“老化时恢复心率的时间常数和衰减率的比较”运动和运动生理学进展7・4（2001）。

Muro, M., Tadano, C.: "Comparison of five constant and instantaneous decay rate of recovery heart rate"Adv. Eexerc. Sports Physiol.. 8(4). 155 (2002)

Muro, M., Tadano, C.：“恢复心率的五种恒定和瞬时衰减率的比较”Adv。

Muro, M., Tadano, C., Kamibayashi, K., Yona, M. and Seki, H.: "Comparison of time constant and instantaneous decay rate of recovery heart rate"Adv. Exerce. Sports Physiol. 8(4). 155 (2002)

Muro, M.、Tadano, C.、Kamibayashi, K.、Yona, M. 和 Seki, H.：“恢复心率的时间常数和瞬时衰减率的比较”Adv。

山縣孝司,室増男: "眼球圧迫反射感度からみた動的運動終了直後の心拍減衰応答特性"体力科学. 49・6. 719 (2000)

Takashi Yamagata、Masuo Muro：“从眼压反射敏感性角度看动态运动结束后的心率衰减反应特征”《体能科学》49・719（2000）。