The protagonists need additional effort for doing period films such as historical entertainers and fantasies. Decades ago, people wouldn't care about the physique of the heroes in spite of they were seen as warriors and kings.
However, audience turn too smart enough these days assessing every minute thing in period films about the heroes. Having gone through the period films which were released for the past seven years, it is understood four heroes set new parameters and standards as warriors in their films.
Mega Power Star Ram Charan's makeover in 'Magadheera' received amazing response from all corners. His long hair style and chiseled body were the attractions in the film. Incidentally, Ram Chara's complete makeover with six pack abs look in his 'Dhruva' turned as one of the major advantages of the movie.
And then, Young Rebel Star Prabhas and hero Rana's robust bodies in 'Baahubali' wondered the movie patrons. Stylish Star Allu Arjun is the first six pack hero of Tollywood. His Gona Gannareddy look in 'Rudhramadevi' received rave response from critics and movie goers.
To sum up, muscular body of a hero is the must for a period movie's hit. Else, the result of any film can't be assessed and estimated that easier. These are the standards set by above heroes in warrior get ups.