benefits of exercise Flashcards
name some of the overall benefits of exercise
wellness / health
rehab
improve sport
lower disease risk
increase strength
restore body health
decrease mental strength
true or false: more than 80% of adults dont meet guidelines for aerobic and muscle strengthening activites
true
true or false: more than 80% of adolescents don’t expend enough energy
true
true or false - most children spend 7.5 hours in front of screens per day
true
how many times per week does the american heart association recommend strength training?
2x weekly
name benefits of strength training
MPS
production of test / HGH
slow bone loss
promote bone growth
1-3% increase in bone mineral density
cardiac improvements
movement control
pain management
increase RMR
what is hypertrophy?
increase in muscular tension through training to provide growth of muscle
what muscle fiber types is hypertrophy most geared toward?
type 2b fibres - largest stores of glycogen
what is myofibrillar hypertrophy?
main source of hypertrophy
occurse when # of contractile proteins increases in the muscle cell
what is sacroplasmic hypertrophy?
swelling of the cell
water / sarcoplasm & sarcoplasmic fluid increases size. also called a
“pump”
what is mechanical tension?
tension applied to muscles from both generation of contractile force during concentric and from stretching of muscle fibres during hypertrophy.