
Skeletal muscles convert chemical energy from nutrients into mechanical energy to contract, move bones, resist gravity, and enable speech and eating, through organized fibers and connective tissue.
Explore the microscopic anatomy of skeletal muscle fibers, how nervous system activation drives early strength gains, and how to tailor training variables to manage fatigue and enhance performance.
Explore the sliding filament theory of muscle contraction, ATP's role, nervous system initiation to tension and relaxation, and how biomechanics enable graded force for fine motor control and powerful movement.
Calcium release enables troponin and tropomyosin to uncover myosin binding sites on actin, allowing myosin heads to pull, slide filaments, and shorten the sarcomere with ATP-powered cross-bridge cycling.
Explore how muscle fibers develop tension through twitch, latent period, contraction, and tetanus, and how wave summation, calcium dynamics, and the length tension relationship shape strength gains via hypertrophy.
Explore how ATP powers muscle contraction by releasing energy from phosphate bonds and how phosphate creatine stores energy to renew ATP through anaerobic and aerobic pathways for sprinting and endurance.
At the end of this course you will have a greater understanding of the structure and function of skeletal muscles. Particular attention will be paid to using this knowledge to create of better evidence based exercise programs to enhance performance and fitness. This course is for anyone looking to design better programs for themselves, clients or athletes. We will consider topics such as the sliding filament model of muscle contraction, muscle energy systems and muscle fiber types and examine how exercise can improve these aspects of muscle anatomy and physiology.