Atrophy and fast/slow twitch

Transient hypertrophy

the temporary increase in muscle girth due to one bout of exercise

How long does Transient hypertrophy last?

Fluid will return to blood within 24 hours

Transient hypertrophy

the temporary increase in muscle girth due to one bout of exercise

How long does Transient hypertrophy last?

Fluid will return to blood within 24 hours

Chronic hypertrophy

the increase in size of myofibrils after repeated bouts of exercise

What causes the change in girth and strength

Increased size of actin and myosin filaments

Atrophy

decrease in muscle girth after cessation of an exercise plan or sport

acute muscle soreness

occurs during the end or immediately post exercise

What is the cause of acute muscle soreness?

due to increased fluid accumulation in muscles

delayed onset muscle soreness

occurs 24-48 hours after exercise

2 causes of delayed onset muscle soreness

structural damage to protein filaments, lactic acid build up in muscles, irritating nerve endings

slow twitch characteristics

slow contraction force, fatigue slowly, high endurance

fast twitch characteristics

high glycogen storage, low myoglobin content, and high strength

slow twitch sports/activities

distance runner, 5 mile bike ride

fast twitch sports/activity examples

100m swim, tennis player

Regular exercise