Contrary to the seated wrist curl, the standing wrist curl should be performed holding the barbell in both hands and the palms facing backward. Although the motion range during a standing wrist curl is less that the seated form, this type of wrist curl has the added benefit of exerting more stress on the target muscle, especially during the peak contraction of these muscles.
The standing dumbbell wrist curl is an isolated exercise. During this exercise, you have to pick up a pair of dumbbells from the ground and stand with your feet spaced shoulder-width apart. With your palms facing backward, curl your wrist along with the weight inwards, towards your body, till your forearms are fully flexed. While in this position, squeeze your forearms and then lower the weight downwards away from your body, until your forearms are fully extended. This motion should be repeated till the point of muscular failure. The same exercise may also be carried out with a bar, instead of a dumbbell.
The standing bicep curl can be performed with a barbell or an EZ bar. The variation of the bicep curls gives an entire range of motions, providing maximum workout for your biceps. An EZ bar is actually more recommended for this exercise because it is less strenuous for your wrists, and also the slightly different angle exerts more stress on your biceps. Pick the barbell up from the ground with your arms away from your body, and your grip about shoulder-width apart. Stand upright with your back straight. Make sure that you don’t bend backwards, because that’ll make the exercise easier and therefore less effective. You may put one foot back, if that helps maintain your stability. The bar should now be squeezed tightly and slowly brought upwards, towards your chest. Keep your elbows tucked into your sides. Once you’ve reached the uppermost position, pause for a while and then slowly move downwards, to starting position. Keep a check on your weights at all times.