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.
Deadlift refers to the lifting of dead (without momentum) weight, such as weights lying on the ground. It is one of the few standard weight training exercises in which all repetitions begin with dead weight.