HBIO 320 MUSCLE PLASTICITY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ LATEST UPDATE

HBIO 320 MUSCLE PLASTICITY EXAM QUESTIONS AND

ANSWERS WITH COMPLETE SOLUTIONS GRADED A++

LATEST UPDATE


Muscle degradation is not as influenced by _______ as muscle syntehsis

Protein intake

Muscle degradation rate is much more affected by

fasting

High muscle protein breakdown

fasting or AA with low insulin

Low Muscle protein breakdown

AA with medium, high, or very high insulin

Change in muscle length is caused by

increased sarcomeres in series.

Methods of increasing muscle length

casting

chronic stretching or shortening

eccentric exercise

In young individuals ____ change length, but in adults ____ change length

tendons: muscles

Fibers lengthen the most when they are

, nearest the tendon insertion point

more responsive than fast twitch fibers to lengthening

Slow twitch fibers

more responsive than short twitch fibers to shortening

Fast twitch fibers

more responsive to changes in muscle length than arm muscles

Leg muscles

Regardless of fiber type, sarcomeres added in series have_______MHC.

Type 1

Functional Consequences of Lengthening

- increased flexibility

- Increased length of muscle at 'optimal shortening length'

- Increased velocity of shortening

Hyperplasia

Production of new muscle fibers

have more fibers than non-dominant limbs

Dominant limbs

Adaptations that take place during resistance training

muscular and neural

Initial gains

strength is the fastest, then neural, then size

Long term gains

strength increases the most, then size, then neural