Water arm lifts could strengthen the muscles in your arms. Using foam dumbbells will help add more resistance. This exercise is similar to a lateral raise, which targets the shoulders and arms.
You don't need any special equipment and all the exercises can be done at home. Bicep curl A great isolation exercise, the bicep curl gives fantastic definition to the upper arm.
You don't need weight to strengthen and define your arms. Muscle-building moves like ... From Zac Efron's beach-ready 'Baywatch' celebrity workout to Henry Cavill's 'Superman' training plan ...