Sandbag Kneeling Bicep Curl
1) Keep both shins on the floor and widen your stance. Chest up - engage the core and glutes!
2) Grab the bag with the palms facing up (underhand grip). Keep the elbows close to your sides at all times.
1) Slowly lift the bag towards your shoulders.
2) Pause at the top and squeeze the biceps. Now, gently lower to the starting position.