The modern style of basketball leads to more running and higher mileage, increasing cumulative stress on the Achilles tendon.

“The game is faster and they run more and there's a lot more mileage. How many miles extra was it? >> 200 more miles a year per team, >> right? Just because just the way the style of the game is played >> and they're not all linear miles. They're start, stop, start, stop, start, stop. So there's a lot of cumulative stress on the Achilles tendon doing that that can you know again on top of the fact that that as as as teenagers they were playing all year long too not like it used to be when Larry Bird was playing when he played his season and he probably went home and and did something completely different.”