Mandroukas K, Zakas A, Aggelopoulou N, Christoulas K, Abatzides G, Karamouzis M
Department of Physical Education and Sports Science, University of Thessaloniki, Greece.
Br J Sports Med. 1995 Dec;29(4):248-51. doi: 10.1136/bjsm.29.4.248.
The aim of this study was to evaluate and compare the plasma concentration of atrial natriuretic factor (ANF), K+, Na+, blood lactate, heart rate, and blood pressure in moderately trained women. Ten healthy women were studied on a cycle ergometer during 20 min of constant submaximal and maximal exercise, as well as during recovery. The ANF concentration was determined by radioimmunoassay. The results show that, except for Na+, all the other variables increased significantly with an increase in the duration and intensity of the exercise (P < 0.05, P < 0.001). In recovery, the values fell (P < 0.01, P < 0.001). Submaximal and maximal exercise both cause increases in ANF and this increase is due to the duration and intensity of exercise. However, maximal exercise, rather than submaximal exercise, is the major stimulus for the concentration of plasma ANF. ANF concentration may be a useful test for evaluating the releasing function of ANF in the heart.
本研究旨在评估和比较中度训练女性的血浆心房利钠因子(ANF)、钾离子、钠离子、血乳酸、心率和血压水平。对10名健康女性在自行车测力计上进行了研究,包括20分钟的恒定亚极量和极量运动期间以及恢复期间。通过放射免疫测定法测定ANF浓度。结果表明,除钠离子外,所有其他变量均随着运动持续时间和强度的增加而显著增加(P < 0.05,P < 0.001)。在恢复过程中,这些值下降(P < 0.01,P < 0.001)。亚极量和极量运动均导致ANF增加,且这种增加归因于运动的持续时间和强度。然而,极量运动而非亚极量运动是血浆ANF浓度的主要刺激因素。ANF浓度可能是评估心脏中ANF释放功能的有用测试指标。