You don't need access to a gym to complete these abs workouts, and you only need a pull-up bar and a dumbbell.
These abs workouts are mini-circuits you can do at the end of your main routine. They work the muscles the hardest and place them under greater tension for longer, stimulating muscle growth.
Dumbbell crunch
Lie on your back, holding a dumbbell or weight plate across your chest in both hands. Raise your torso, then lower it, maintaining tension in your upper abs throughout.
Tuck and crunch
Lie down with your hands by your head, raise your legs at a 90° angle, and draw your knees towards your chest.
Modified V-sit
Lie on your back with your legs extended away from you and your arms by your sides. Lift your torso and legs and lower under control.
Crunch
Lie on your back and raise your torso using your abs. Hold the top position of each rep for at least one second.