14503
They performed one trial involving a 2h exercise on a cycle ergometer at 60 - 65 % VO2max followed by a 4h recovery and then a second trial involving an 1h exercise at 60 - 65 % VO2max which was increased at 95 % VO2max .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None