Muscles are essential for maintaining breathing, movement, metabolism, and posture.
Posture is important for alertness, breathing, and movement.
The nervous system controls muscle through upper and lower motor neurons and central pattern generators.
The more muscle you have, the higher your metabolism.
Jumping ability and standing up quickly are predictive markers of aging.
Muscles function on glycolysis, and lactate has three functions: buffering against muscle acidity, fuel for generating muscular contractions, and acting as a hormonal signal.
Resistance exercise is important to offset the normal decline in muscle strength and posture.
Muscle hypertrophy can be stimulated by stress, tension, or damage, and can be achieved without heavy weights.
To maximize benefits of resistance training, move weights or use bands in the 30-80% of 1RM range, perform enough sets per week, and work within the full range of motion.
Recovery can be assessed through tests like heart rate variability, grip strength, and carbon dioxide tolerance.
