Objective: To study the change o f ANP,AngⅡ,ET and psychological reaction during military parachute jumping. Methods: Fifty-four new airborne were randomly divided into control group,experiment gro up one and experiment group two.10ml blood of median were col lect ed.The ANP,AngⅡand ET level were tested with RIA,and the level of emotion arous al was estimated with questionnaire.R esults : (1)There was a significant increase of plasma ANP,AngⅡ,ET durin g parachute jumping stress. (2) The score of anxiety 24 hour before jumpingwas significantly different from that of immediately after landing.Conclusion: Some kinds of psychological intervene was needed in preventing psychosomatic desease and neuroses during parachute jumping.
Objective: To investigate the effects of parachute jumping stress on plasma Arginin vasopression(AVP), Neuropeptide Y(NPY), Calcitoningene-related peptide(CGRP),Neurotensin(NT),Vasoactive intestinal polypeptide(VIP) levels in the newly recruited parachutists. Methods: Fifty-four new parachutists were recruited as subjects. They were randomly assigned to 3 groups: control group ,experiment-1 and experiment-2 group. Their blood samples were collected 24 hour before parachute jumping, just before boarding, and immediately after jumping for assessing the plasma levels of AVP, NPY, CGRP, NT, VIP with immunoassay. Results:(1) The plasma levels of AVP, NPY, CGRP, NT and VIP in experiment-1 and experiment-2 group were significantly higher than those of control group. In experiment-2 group the AVP,NPY, CGRP, and VIP plasma levels were significantly higher than those of experiment-1 group . Conclusion: The physiological impacts of parachute jumping on newly recruited parachutists should not be neglected.
