Fast twitch muscle fibers support quick, powerful movements such as sprinting or weightlifting.
The heart rate reserve is equal to the difference between maximum heart rate and resting heart rate. Maximum heart rate is usually calculated by:
Hmax = 220 - age
Hmax = 220 - 40 = 180
HRR = Hmax - Hrest
HRR = 180 - 75
= 105
The answer is B
Answer:
Facial hair, Muscles, Jawlines,Deep voice, Dark hair
I think it is 5 hours but i don’t know
