'The workouts were focused on intensity,' says Sybliss.
The trainer also says the 51-year-old singer wanted to get stage-ready after delivery son Eissa on Jauary 3rd.
'That was my goal. I needed to get her not just looking fit, but to be able to move, to talk and to sing,' Sybliss told PEOPLE Magazine. 'She sings and dances. She does them together - she doesn't do one or the other.'
The star looks amazing!
Jackson started working out again eight weeks after delivering Eissa, and would train with Sybliss at least four days a week for 45 minutes to an hour.
Sybliss says she focused their workouts on weight training — not cardio.
'People are quite surprised, but we did no conventional cardio the entire time we worked out together,' she says 'It was weight training.'
'When you work your muscles in that way, your body is going to continue to burn calories. You may burn some calories when you step on a treadmill, but the minute you stop your body stops; you’re not burning any more. So my goal was, every time she’s not with me, I need her body to be working.'
Jackson is currently touring around the US.