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.
Your muscles build this same type of elastic energy and release it as you drive back to lockout. Deadlifts force you to overcome the load on the bar from dead stop. This type of strength where you go from zero potential to activating as many muscle as possible develops your starting strength. This is why it is so critical for you to create as much tension as possible before you even pull the weight.