Development Aspects Flashcards
What causes the difference between male and female skeletal muscle?
the male sex hormone testosterone
What are two reasons why men are stronger than women?
- women’s skeletal muscle makes up 36% of their body mass
- men’s skeletal muscle makes up 42% of their body mass
In what way are male and female muscle mass the same?
body strength per unit muscle mass is the same in both sexes
In terms of age-related development, muscular development reflects _______?_______ (what other system of maturation?)
muscular development reflect nervous system maturation
thus neuromuscular coordination
Development occurs cranial to _________; and __________ to distal
cranial to caudal; and proximal to distal
At what age is peak neural control of muscles reached?
by mid-adolescence
What can improve neuromuscular control?
Athletics and training (within genetic limitations)
How does age affect connective tissue and # of muscle fibers?
Connective tissue increases and number of muscle fibers decrease with age
At what age does loss of muscle mass begin?
30
At what age is 50% of muscle mass lost (sarcopenia)
80
What is Atrophy
muscles appear “stringier”
(opposite of hypertrophy
What can reverse sarcopenia?
regular resistance exercise
