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.
The Movement. The deadlift is typically done with a barbell, but can also be done with dumbbells. Set a barbell on the floor about 1 inch in front of your shins, your feet about hip-width apart. Squat down by bending your knees and grab the bar with an overhand grip just outside your legs.ack Muscles. The erector spinae, the muscles of your low back, are some of the main movers during the deadlift exercise. These three muscles â the iliocastalis, the longissimus and the spinalis â run from near the base of your skull, down your back and attach to the lower vertebrae.