3734
The maximum velocity of contractile element shortening increased from 1 . 68 + / - 0 . 11 ml / s to 2 . 18 + / - 0 . 21 muscle - lengths / s ( P less than 0 . 05 ) and is consistent with an increase in contractility .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 None