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.
Others squeeze their lats, abs, and traps. It's such a compound movement that you could go many different routes with it. This is a good way to put it. Overall, your lower back, glutes, and hams will get a lot of work from deadlifts, but you can emphasize different things by making SLIGHT alterations in your form. Originally Posted by forclosers. It depends on which muscle groups you focus on while performing the lift. If you use your arms as merely hooks and focus on pushing your hips forward, like I do, then you'll mostly be using your lower back. If you focus on driving your feet into the ground, then you'll be hitting your legs harder.