i appreciate the concept of functional measures, as it sound more practical. i was told that, chek the muscle test in its full range, and to maintain max.resistance then it is normal.

for eg. 4grade, wud be someone who can manage resisitance but not to the fullest range. he/she may not be able to achieve its normal range.

relaibiliy is something defined as how consistent the values are when done in two different occasion of same procedure