Is lebron James vo2 max higher than Michael Phelps vo2 max?

Answer 1

It is very likely that James Vo2 max is higher than Michael Phelps when measured on treadmill, but, while swimming Michael Phelps VO2 max will be higher. VO2 max is affected by many factors like training, efficiency, age, test protocols, athlete's training cycle period, sickness, etc. However, due to the nature of swim training - typically 4-5 hours a day plus dry-land training, plus Michael's genetic makeup and years of training every single day- it is most likely that Michael Phelps VO2 max shall be higher than James.