Related Experiment Video
Updated: Aug 16, 2026

Evaluation of Blood Lactate and Plasma Insulin During High-intensity Exercise by Antecubital Vein Catheterization
Published on: May 18, 2018
Changes in fibrinolysis following exercise above and below lactate threshold
Christopher J Womack1, Jennifer M Rasmussen, Daniel G Vickers
1Human Energy Research Laboratory, Department of Kinesiology, Michigan State University, East Lansing, 48824, USA. cwomack@msu.edu
Abstract:
This study sought to compare fibrinolytic responses to exercise above lactate threshold (LT) to longer-duration, equicaloric exercise below LT. Fifteen males performed cycle ergometer tests above (77% VO(2)peak) and below LT (41% VO(2)peak) to comparatively evaluate tissue plasminogen activator (tPA) and plasminogen activator inhibitor-1 (PAI-1) responses. tPA activity significantly (P < 0.05) increased during the >LT test (pre-exercise = 1.57 +/- 0.44 IU ml(-1), post-exercise = 3.85 +/- 4.72 IU ml(-1)), but not the
More Related Videos
Related Concept Videos
Muscle Recovery and Fatigue
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Exercise Stress Test
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Clot Retraction and Fibrinolysis
Exercise and Muscle Performance
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Metabolic States of the Body: Fasting and Starvation

