1624
Central ( heart rate , VE , VO2 ) or local ( muscle and blood lactate , adenosine triphosphate , creatine phosphokinase , glycogen ) cues highlighted in these studies demonstrate both the complexity of effort perception , and the need for better understanding of the physiological components upon which it is based .
 GENE: creatine phosphokinase
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: creatine phosphokinase