It is understood that Parker sparred with some quality opponents during training, including Bermane Stiverne, a recent former WBC heavyweight world title holder. Stiverne, who lost his belt to current holder Deontay Wilder last year, would have put enormous pressure on Parker in preparation for his fight against the similarly tough Takam, and the accumulated punishment took a big toll.
"Over-working - training three times a day, six days week," Parker said. "When you're smashing the body and the body can't take any more, it crashes.
"The shorter camps work better for us."
Asked by the Herald about his elbow issues, and why he appeared to be stretching his hamstrings after every round, Parker said: "The right [elbow] wasn't too bad, but the left, when I went to jab and throw the overhand right, it sort of bent the arm which I think was why my arms were hanging low. It was because they were sore.
"I felt like my legs were a bit tight and that was one reason why I was standing upright [presenting a bigger target]. During the camp we practised bending down and sitting on the punches [for power] but when the fight came I felt a bit tight."
A weary-looking Parker was fulfilling his final media obligations in order to confirm his next fight against Australian Solomon Haumono in Christchurch on July 21. He will fly out for a two-week holiday tomorrow before a five-week camp for the Haumono fight.
He said he had watched a replay of the fight yesterday morning. "I can see why [trainer] Kevin [Barry] is upset. It's a learning process. With every fight you make mistakes. Some fights you look good and in some fights you don't."