Athletic Performance and Muscle Biochemistry

Vocabulary flashcards based on lecture notes about athletic performance, muscle fibers, and energy production.

Pat Clohessy

Australian runner and distance running coach.

Glycolysis

The pathway transforming glucose to pyruvate.

Glycolysis

Occurs constitutively, irrespective of whether the system is aerobic or anaerobic

Lactic acid

If the system is anaerobic, pyruvate is subject to reduction in the cytosol forming this.

Anaerobic

Immediate/very rapid/rapid ATP supply.

Aerobic

Slow ATP supply.

Sarcolemma

Muscle fiber membrane.

Sarcomere

Basic contractile unit of muscle fiber.

H Zone

Region of sarcomere containing only thick filaments.

A Band

Dark band in sarcomere where thick filaments are located.

I Band

Light band in sarcomere containing thin filaments.

M Line

Connects thick filaments.

Fast Fibre

MYL1, TPM1, TNNT1 high

Fast fibre

ATP2A1 highly expressed

Slow Fibre

Electron transport chain proteins high (e.g. NADH subunits)