Kobe Bryant was notorious for his work ethic.
In high school, Kobe would show up to practice at 5 am and leave at 7 pm. In preparation for the 2008 Olympics, Bryant would workout for hours before dawn to maintain and improve his performance.
Bryant also made a habit of watching films of his play during halftime in order to improve his performance. He'd also regularly work with random teammates after practice to try out new moves.
To avoid injury, Bryant iced his knees multiple times a day. He was also known to follow a strict diet with little sugar and excess fat. Bryant also started to meditate regularly after Phil Jackson took over coaching of the Lakers in 2000.
While an active gymnast, Nadia trained with her coach, Karolyi, up to eight hours a day, six days a week. One characteristic that her coach claims separates Nadia from her colleagues is her lack of fear.
In addition to her strict practice, Nadia's coach also had her adhere to a rigorous diet of fruit, milk, cheese, and protein to maintain her lean physique.
The head manager of the US Olympic's team has said that Nadia would "repeat things as many times as she can without rest to increase her endurance and strength".
Nadia is also known for a high degree of perfection and was reluctant to begin her routines unless everything was perfect. For example, she's been known to wait for a couple of minutes before performing a routine as she let the crowd settle down and her body achieve a level of calm.
Bruce Lee typically woke up at 7 am, stretched, and went for a run. Lee returned home at 8:30 am to eat breakfast and spend some time with his kids until about 9:30 am. He would then take some free time before teaching his private lessons at 10 am.
From 11 am to 3 pm Lee would eat lunch, do some script writing as well as teach. 3 pm to 4:30 pm was when he performed his own workouts and training. After which, he would enjoy some free time and play with his kids from 4:30 pm to 6 pm.
Lee would have his dinner and workout some more with his students and friends from 6 pm to around 9 pm.
At night, the martial artist would read and write from 9 pm to 11 pm and then go to bed for his typical eight hours of sleep.
When preparing for the biggest fight of his life, Sonny Liston ate five strips of bacon, three soft-boiled eggs, two glasses of fruit juice, and two cups of tea for breakfast. He'd later eat two pounds of steak for dinner.
Liston would also walk seven miles in seven pound shoes, shadow box for four rounds, and skip rope for nine minutes while listening to the "The Night Train".
In his free time for distraction, Liston watched TV, performed headstands, or even rode his bike.
Wilma Rudolph worked part-time which allowed her to cover her university tuition and living costs. While she was working and studying, Wilma also trained vigorously on the track. In order to become a member of the track club, Tigerbelles, at Tennessee state university she was required to maintain a “B” grade average or higher.
The Olympic champion engaged in a heavily demanding daily routine. At night Wilma snuck out her accommodation, through the fire escape, and practiced from 8 to 10 pm. Once she finished training, she’d sneak back into her dorm in time for bed checks. Wilma sustained this exhaustive routine every day for 3 years.