You can work your abdominal muscles without lying down, or put yourself in uncomfortable positions, you can simply do it while standing.
The results that you can obtain in order to lose abdominal fat are just as efficient as if you did them lying down.
Abdominal exercises you can do standing up
Below are 5 of the exercises that are most effective to achieve this purpose.
1. Standing gait with turn

How to do it: Think of this move as slow high knees with an added twist. Stand with your feet hip-width apart, arms behind your head, and abs contracted.
Bring your right elbow to your left knee as you twist at the waist, then return to starting position and repeat on the opposite side.
Continue alternating sides for 1 minute.
Focus on using your abdominal muscles, not your quadriceps, to lift your knee.
2. Cross leg raise

Standing up, place both hands behind your head.
Engaging your abs, lift one straight leg up as you extend the opposite arm to reach your toes. Keep your spine long and your head up (don’t slouch or arch your back).
Extend only as far as your mobility allows. Return to the starting position and complete 20 repetitions total, alternating sides.
3. Knee raise

Standing, extend both arms in front of you so that they are perpendicular to your body.
Raise one knee to hip height, contracting your abdomen for balance. Return to the starting position and complete 20 repetitions total, alternating sides.
4. Incline Obliques

Begin by standing holding a dumbbell, kettlebell, or barbell with both hands. Raise the weight above your head, contracting your abdomen and tucking your hips in to avoid arching your back.
Slowly lean to the right, keeping your hips square and your arms in line with your torso. Only stretch out as far as your mobility allows.
Squeeze your obliques to bring your upper body back to center and repeat on the opposite side. Complete 20 total reps, alternating sides.
5. Lunge Crunch


Begin in a lunge position with your front knee bent at a 90-degree angle and your other leg straight behind you. Extend both arms in front of you diagonally.
Engaging your abdomen, bring your back knee up and toward your chest, as you swing your arms down to frame the knee.
Extend leg back to starting position and repeat. You want to bring the knee up and in as quickly as possible to maintain the explosive movement. Complete 15 reps, then switch sides and repeat.