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.
Arm Muscles. Arm muscles being affected by deadlifts should not be a surprise at all, as you will be lifting using your hands. The arms will always feel that extra pinch even with just a little weight added to deadlift. The deadlift exercise will help you stronger arms and forearms if you keep up with the exercises.