India, Aug. 4 -- At 50, Shilpa Shetty is one of the fittest actors in Bollywood. The actor also motivates her followers by sharing her workout routine and diet tips on social media. In a post shared on August 4, she shared an exercise that she includes in her workout regimen to train her core. Let's find out what it is:

Shilpa posted a video of herself doing leg raises, and making it fun and more gruelling by using a tennis ball. "Ball's in your court, serve up that core strength. Challenge thrown to you! How many can you do with perfect form?" she captioned the video.

To do the exercise, while lying on her back on the floor, she lifted up her back. Then, she raised her legs off the floor and positioned them at a 90-degree angle. She fo...