At the European indoor championships in Serbian capital, the 23-year-old Scot sensationally claimed two titles smashing championships records in 1500m (4:02.39) and 3000m (8:35.67).
"We went for the double to see how the legs coped with a lot of rounds in a short period," Muir told the BBC Sports.
After successful European indoors Muir now plans to double at the upcoming world championships in London 2017.
"Hopefully, come London, I'll double up and do the 1500m and the 5K."
"I'd love to get on the podium,
"That would be my first global-level medal." Muir added.
The world championships in London will take place on August 4-13.
Women's 1500m and 5000m Scheduled for London 2017 World Championships
August 4 - 1500m Heats
August 5 - 1500m Semi Finals
August 7 - 1500m Final
August 10 - 5000m Heats
August 13 - 5000m Final