Muscle Physiology Overview

Muscle Tissue Types

• Skeletal muscle controls voluntary movement.
• Cardiac muscle is found in the heart.
• Smooth muscle is found in internal organs.

Energy for Muscle Contraction

• ATP provides energy for muscle contraction.
• ATP breaks down to release energy

Energy Systems

• The phosphagen system provides immediate energy for short-duration activities, like sprinting.
• Glycolysis provides energy for activities lasting less than 2 minutes and produces lactic acid as a byproduct.
• The oxidative system uses oxygen to generate energy for long-duration activities.

Muscle Fiber Types

• Type I fibers are slow-twitch, fatigue-resistant, and used for endurance activities.

Muscle Hypertrophy

• Hypertrophy is the enlargement of muscle fibers due to resistance training.

Muscle Contraction Theory

• The Sliding Filament Theory describes how actin and myosin filaments interact to produce muscle contraction.

Aerobic Respiration

• Aerobic respiration takes place in mitochondria, the "powerhouses" of the cell.

Muscle Fatigue

• Muscle fatigue occurs when the muscle can no longer produce enough ATP to maintain contraction.

Physical Assessments

• Physical assessments are used to reveal weaknesses and measure fitness readiness.

Components of Physical Fitness Assessment

• Components include mobility, speed, and endurance.

Kinetic Chain Checkpoints

• Kinetic chain checkpoints are key alignment points in the body to ensure proper movement and alignment.

Functional Movement Screen (FMS)

• The FMS assesses movement quality and identifies imbalances.

Benefits of Balance Exercises

• Balance exercises prevent falls and improve coordination.

Test your knowledge on muscle tissue types, energy systems, and muscle contraction mechanics. This quiz covers everything from skeletal muscles to hypertrophy, including the physiological processes involved in muscle function. Perfect for students studying exercise science or physiology!