Please choose the correct ending to complete the given sentence: Uncategorized: [header] How to do dumbbell hammer curls [title] Position your feet. [step] Stand up straight with your feet even with your hips. Your stance should be solid and stable.

Ending1: Your hands should be placed slightly above the shoulders, about shoulder-width apart. With your shoulders square, this will make your dumbbell curls look stable. Ending2: [substeps] Avoid bending at your knees, which can cause them to break when you add weight. Consider keeping the dumbbells square and tall, just in front of one another or about shoulder width apart. Ending3: Ensure that you are balancing on your toes and don't try to shift or shift your weight away from your toes, as it can strain your core to do curls. [substeps] Be sure that you hold a grip on the dumbbell in one hand, or vice versa. Ending4: [substeps] Some people prefer instead to do this exercise while sitting on a bench, feet on either side. This is also fine, but be sure not to slump or slouch.

Answer format: ending1/ending2/ending3/ending4