11580
To assess the maximum oxygen uptake ( V ' O2 max ) of Hong Kong Chinese children and to explore its association with respiratory illnesses , we conducted the Multistage Fitness Test ( MFT ) , a 20 - m shuttle run test , in 1 , 427 schoolchildren aged between 8 - 12 years .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None