Other contributors have said "What exercises are good for the pectoral muscles?" is the same question as "What exercises strengthen the pectoral muscles?" If you believe that these are not asking the same thing and should be answered differently, click here
There are many exercises that you can use. For instance push-ups, bench press with barbell or dumbbells (flat bench, incline and decline), dumbbell flyes, dips, cable crossovers, peck deck flyes, etc.
The exercise ball will strengthen different muscles depending on how you use it. It's probably most popular and frequently used for an abdominal work out.
Kegel exercises are exercises of the supporting muscles of the pelvic floor, the pubococcygeus muscles, also called the PC muscles. They are prescribed for women and men in order to strengthen their...