1988 Volume 29 Issue 5 Pages 694-698
This study was to investigate exercise-induced changes of plasma plasminogen activator activity. The plasma levels of t-PA antigen, u-PA antigen and PA activity were measured before exercise and immediately after, 15min, 30min, and 60min after exercise on the treadmill.
The levels of t-PA antigen and PA activity rose immediately after exercise and then gradually decreased. They returned to the control levels 60 min later. In contrast, the level of u-PA antigen was not affected by exercise. In old-aged individuals, the degree of elevation of t-PA antigen and PA activity after exercise was less as compared with that seen in the young age group.
