13. Effects of Exercise & Muscle Fatigue

What three cellular adaptations occur with endurance training?

1. More oxidative enzymes, 2. More mitochondria, 3. More blood vessels

What functional benefits result from endurance training?

Make ATP, resist fatigue

What structural adaptation occurs with resistance training?

Increased myofibrils

What happens to muscle fiber diameter with resistance training?

Increased fiber diameter

What gross muscular adaptation results from resistance training?

Hypertrophy

What structural adaptation occurs with muscle disuse?

Decreased myofibrils

What happens to muscle fiber diameter with muscle disuse?

Decreased fiber diameter

What gross muscular adaptation results from muscle disuse?

Atrophy

What is muscle fatigue?

Decreased ability to contract

What performance change occurs during muscle fatigue?

Decreased efficiency