Jackson’s friend, Lou Ferrigno, said that the late singer was under a considerable amount of stress recently.
The Incredible Hulk actor was hired by Jackson to help get him toned and in shape for his return to the stage. Ferrigno was also the King of Pop’s personal trainer for another one of his tours 15 years ago.
Ferrigno revealed to People that Jackson was determined not to let his chronic back pain slow him down, and that he was, "such an icon and he couldn’t afford to have any injuries."
Jackson’s physical training consisted mostly of stretching and relaxation exercises. The singer was mainly trying to strengthen his legs, said Ferrigno. "Being 50, his body went through a lot of stress getting ready for the tour, but he was awesome," he explained.
Ferrigno is still completely devastated by his friend’s sudden death.