"This exercise works the upper back, shoulders, and armpits. Meier thinks renegade rows may be aerobic if you retain a good tempo without losing technique.
Protect your upper back and shoulders by lying on a bench or floor. A dumbbell in each hand, arms straight out in front of your chest. Lower the dumbbell behind your head with straight arms until your chest and back muscles stretch. Do three to four 12-to-15-rep sets.
Musclebuilders aren't the only bench press users. It may shape your upper body, including your armpits, if done correctly. "This classic chest exercise is a great upper-body movement that tightens and tones the pecs and armpits," explains Meier.
Dumbbell rows work the latissimus dorsi and posterior deltoids. Meier thinks engaging this area generally tightens the upper body.
"Dumbbell flyes isolate the chest but also engage the arms and anterior deltoids for stability," explains Meier. The chest can provide the impression of a toned, muscular upper body."
Do dumbbell front rises to shape your armpits. Meier says, "This exercise targets the anterior deltoids (front shoulders)." "They don't target the area below the armpits, but they help build a strong, well-rounded upper body."
Hold a dumbbell above with hands and arms straight. Reduce the dumbbell behind your head gently with bent elbows, then lift it to the starting position.
Standing lateral raises conclude this dumbbell armpit pooch workout. "This exercise targets the lateral delts on the outsides of your shoulders and requires core strength, including the serratus muscles running up and down your ribcage