PROFILE OF Creatine Kinase Myocardial Band (CK-MB) LEVELS IN PEOPLE WITH FITNESS HABITS

Abstract

Fitness activities are classified as types of sports that require high optimal work of the heart. Fitness exercises if done excessively can cause a risk of increasing Creatine Kinase levels, one of which is the Creatine Kinase Myocardial Band (CK-MB). CK-MB is the most abundant cre-atine kinase isoenzyme in cardiac muscle cells. Thus resulting in muscle fatigue and muscle injury in that section. This study aims to determine the levels of Creatine Kinase Myocardial Band (CK-MB) in people who regularly do fitness. This study uses a descriptive method with a quantitative approach, namely studying data in the form of numbers. Using a research popula-tion of 75 people with a sample of 30 male sex in productive age who regularly do fitness. Ex-amination of the Creatine Kinase Myocardial Band (CK-MB) was carried out by taking venous blood and then testing it using the routine TMS 50i Superior by Tokyo clinical chemistry tool at the Surabaya Health Laboratory Center (BBLK). Based on the examination results and ob-tained data on the levels of Creatine Kinase Myocardial Band (CK-MB) from a total of 30 samples, 30% (9 people) were normal and 70% (21 people) were abnormal.