My ekg reading was 54, could that be the beginning of bradychardia? my mom has a slow heart beat and a heart murmur. i'm concerned i will get a murmur

Bradycardia: Bradycardia in a person who is physically very active is normal. If you are performing aerobic exercise on a regular basis, do not worry about a heart rate of 54 bpm. A heart murmur can be benign, albeit if you develop it later in life, you need to be evaluated; however, there is very little correlation between bradycardia and a heart murmur (far-fetched correlations exist however).