Beef up and String out

Beef up verb - To increase the ability of (as a muscle) to exert physical force.

String out and beef up are semantically related In some cases you can use "String out" instead a verb "Beef up".

String out verb - Set out or stretch in a line, succession, or series.

Beef up and string out are semantically related in longer topic. Sometimes you can use "Beef up" instead a verb "String out".