The cause is frequently unknown. Hypertrophic cardiomyopathy is often and dilated cardiomyopathy in a third of cases, is inherited from a person's parents. Dilated cardiomyopathy may also result from alcohol, heavy metals, coronary heart disease, cocaine use, and viral infections.
Consider the number of reps. You can also confuse your muscles by increasing or decreasing the number of repetitions you do during any given exercise. For example, if you normally do 12 repetitions, do 15 or 18 repetitions, but with a lower weight than you would normally use.
Nobody has ever said to me in all of my time working as a physio that they feel weakness in their intercostal muscles. Can you explain why you think it's intercostal and not a rib cartilage or oblique muscle strain? Submitted 6 years 20 weeks ago by JordanM