Definition of cofferdam - a watertight enclosure pumped dry to permit construction work below the waterline, as when building bridges or repairing a ship. Definition of cofferdam - a watertight enclosure pumped dry to permit construction work below the waterline, as when building bridges or repairing a ship.
Named Muscles. The specific primary muscles used in a deadlift are the erector spinae, gluteus maximus, quadriceps, hamstrings and adductors. The secondary or stabilizing muscles are the trapezius, rhomboids, flexors, extensors, serratus anterior, rectus abdominus, transverse abdominus, gluteus medius/minimus, soleus and the gastrocnemius.
Muscles Overhead Presses Work. The upper-body push muscles missed by the deadlift are all hit by the overhead press, as long as you use a form that consciously hits the pectorals. When performing the overhead press, you have the choice to bring the bar down behind your neck or to the front, over the clavicles. Behind-the-neck presses work the deltoids and triceps, but miss the pectorals. But overhead presses to the front are the single-best upper-pectoral exercises, and they even utilize the lower pectorals to some degree.