| （郑州航空工业管理学院 体育教学部，河南 郑州 450015） 摘 要：为探讨一次超大强度训练后不同恢复手段(积极性恢复和消极性恢复)对男子篮球运动员心肺功能的影响，将20名男子篮球运动员随机分为消极性恢复组(PR组)和积极性恢复组(AR组)，进行一次超大强度训练，训练后分别进行积极性恢复(50%VO2max蹬车运动)和消极性恢复(坐在功率自行车上休息)，时间为5 min。分别于训练前安静时、训练后即刻以及训练后每隔1 min利用胸电生物阻抗法无创血流动力学监测仪测定心率(HR)、每搏输出量(SV)、心输出量(CO)、胸电阻抗(TEI)(与中心血容量负相关)、射血前期/左室射血时间(PEP/LVET)值(与心肌收缩力呈负相关)、每搏输出量/舒张时间(SV/DT)值(与心室充盈率呈正相关)；用动态血压仪测定收缩压(SBP)、舒张压(DBP)、平均动脉压(MBP)；用气体代谢仪测定摄氧量(VO2)，计算全身血管阻力(SVR)，和动静脉氧差(a-vDO2)。结果发现，与训练前安静时比较，AR组和PR组训练后即刻CO、SV、HR、SV/DT值、SBP、VO2和a-vDO2升高(P<0.05)，恢复期逐渐下降(P<0.05)；PEP/LVET值、DBP、MBP和SVR降低(P<0.05)，恢复期逐渐升高；TEI则无显著性变化(P>0.05)。组间比较，恢复期第5分钟时，PR组CO、SV、HR、PEP/LVET值、SV/DT值、VO2和a-vDO2明显低于AR组(P<0.05)，SVR高于AR组(P<0.05)，SBP、DBP、MBP和TEI则无显著性差异(P>0.05)。实验过程中所有受试者未出现低血压、心律失常等不良反应。结果说明，一次超大强度训练后进行积极性恢复对心肺功能的恢复效果优于消极性恢复，而消极性恢复并未造成心血管系统明显异常。 |
WANG Chen-yu
| （Department of Physical Education，Zhengzhou Institute of Aeronautical Industry Management，Zhengzhou 450015，China) Abstract: In order to probe into the effects of different recovery means (active recovery and passive recovery) on the car-diopulmonary functions of male basketball players after super high intensity training, the author divided 20 male basketball players randomly into a passive recovery group (PR) and an active recovery group (AR), let them have super high intensity training and respectively carry out active recovery (pedaling on a cycle ergometer with 50%VO2max) and passive recovery (resting on a cycle ergometer) for 5min after training, measured their heart rate (HR), stroke volume (SV), cardiac output (CO), thoracic electrical impedance (TEI) (negatively correlative with central blood volume), pre-ejection period/left ven-tricular ejection time (PEP/LVET) ratio (negatively correlative with myocardial contractility) and stroke volume/diastolic time (SV/DT) (positively correlative with ventricular filling rate) by using a thoracic electrical bioimpedance noninvasive hemodynamic monitor, measured their systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean blood pressure (MBP) by using an ambulatory blood pressure sphygmomanometer, measured their oxygen uptake (VO2) by us-ing a gas analyzer, in a calm condition before training, immediately after training, and every 1min after training respec-tively, calculated systemic vascular resistance (SVR＝MBP/CO×80) and arterio-venous oxygen difference (a-vDO2＝VO2/CO), and revealed the following findings: as compared with those measured in a calm condition before training, measured immediately after training, the CO, SV, HR, PEP/LVET ratio, SV/DT, VO2 and a-vDO2 of the players in groups AR and PR, increased (P<0.05), and gradually decreased during recovery (P<0.05), their PEP/LVET ratio, DBP, MBP and SVR decreased (P<0.05), and gradually increased during recovery, while their TEI had no significant change (P>0.05); comparison between groups: in the 5th minute during recovery, the CO, SV, HR, PEP/LVET ratio, SV/DT, VO2 and a-vDO2 of the players in group RP were significantly lower than those of the players in group AR (P<0.05), their SVR was higher than that of the players in group AR (P<0.05), while there were no significant changes in SBP, DBP, MBP and TEI (P>0.05); during the experiment, all the testees had no adverse reaction such as low blood pressure, arrhythmia etc. The said findings indicated that the effect of carrying out active recovery after super high intensity training on the recovery of cardiopulmonary functions was better than that of passive recovery, yet passive recovery did not cause evident cardiovas-cular system abnormity. |
下载本期全文：点击下载