deltoid
Lactate is the most likely cause of the burning you feel in overworked muscles.
If you had to pick an answer which named three muscles, it would be MASSETER, PTERYGOID & TEMPORALIS.
ground tissue
There are several muscles involved in climbing stairs. Some of the most worked-on muscles are: gluteus maximus and the harmstrings. Additionally there are several more muscles involved located at the knees.
Abduction of the arm.
His abduction of Persephone.
Quadriceps (thighs), Triceps (back of your arm) and abs (stomach muscles) are the three most important muscles involved in swimming, however a well rounded, athletic body in all areas is the best.
the secretary of state
Shoulder protraction primarily involves the movement of the scapula forward and away from the spine, which can lead to some stretching of the infraspinatus and supraspinatus muscles. However, these muscles are more affected by shoulder external rotation and abduction. While protraction may create a slight elongation in these muscles, it is not the most effective way to specifically stretch them. For targeted stretching, external rotation exercises are more beneficial.
There were no abductions during the Roswell incident; however the most famous alien abduction case is the Betty and Barney Hill case of the late 60's.
Mechanical power
Flexion, abduction, external rotation