India, Oct. 22 -- Did you know core exercises like sit-ups can strain your neck and lead to upper back injuries, offering little core benefit? And Russian twists may overload your lower back, causing injury and wasted time? Or that even side bends can make your waist appear thicker by bulking up obliques? Also read | Fitness coach says 'worst exercise on the planet has to be burpee'; shares what to do instead to lose weight

Celebrity fitness coach Siddhartha Singh, who has trained actors Tamannaah Bhatia, took to Instagram on October 21 to talk about these 'three worst exercises for your core'. In the video he posted, Siddhartha also advised focusing on alternative exercises for better core development.

According to Siddhartha, here are...