Advance physiology: Exercise Metabolism Part 2 Quiz part 5 (IMTG lipolysis)

use of IMTG as a ______ during dynamic exercise

substrate

IMTG is an important substrate during

prolonged moderate-intense (~50% - 65% VO2max) dynamic exercise in both men and women

IMTG can be an important substrate in well trained athletes up to

about 85% of VO2max

Is lipid ingestion after exercise important?

• high levels of fate intake after exercise replenish IMTG stores more quickly than low levels of fat intake

• high fat intake might compromise the ability to restore muscle glycogen - probably more important to worry about replenishing glycogen stores

Regulation of muscle lipolysis

• ATGL and HSL also regulate lipolysis in skeletal muscle

HSL activity is ____ at rest due to

HSL activity is low at rest - due to low Ca+ and epinephrine → higher levels of calcium and epinephrine during exercise increase HSL activity