What does it mean if your Creatine kinase result is too low? A low CK level could be the result of alcoholic liver disease or rheumatoid arthritis. As CK levels are a reflection of total muscle mass, people who have been confined to bed rest for extended periods of time will display abnormally low CK levels.

What can cause a low CK?

1) Low Muscle Mass The most common cause of low creatine kinase levels is muscle wasting (muscle atrophy) due to physical inactivity, illnesses, or old age [85].

What does it mean to have a low CPK level?

Low levels of CPK can be present in patients with connective tissue diseases such as rheumatoid arthritis or systemic lupus erythematosus. There may also be low levels in patients with reduced physical activity, such as elderly bed-ridden patients.[13]