They also serve as breathing muscles and have a tendency to knot up, due to stress. Good workouts for traps include dumbbell shrugs, upright rows and lateral raises. Gluteus maximums: otherwise known as gluts are none other than your buttock muscles. They are more than just decorative. They are in fact responsible for body posture and stability. For a shapely well-toned gluteus, recommended exercises include squats, lunges and kickbacks. Quadriceps Femora's: also known as quads.

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