Make sure you drink plenty of water, exercise daily and eat as healthy as you can. Get enough rest and make sure to keep a positive mind. <span />
Chest muscles, or pectorals
shoulders, or deltoids
back of your arms, or triceps
abdominals
the “wing” muscles directly under your armpit, called the serratus anterior
The answer to this question would be theories.
Research finding must be plausible. That means that there is a theory that can explain why did you get that result. Without it, the research findings will be suspicious and it is hard to be falsifiable. Sometimes the findings are just purely coincidental.
It is true that aerobic endurance is good cardiovascular efficiency.
What do you mean by this?