Strength and conditioning - Into & Neuromuscular System
What is Said?
Specific adaptations to impose demand i.e. your body will get stronger to resist stimulus when given
What are the seven factors behind strength training?
Specific, overload, fatigue, management, stimulus recovery, adaptation, variation, phase potentiation, and individual difference
What is the muscle contraction the
The sliding filament theory,
Cross bridges between Actin and myosin, the amount of cross bridges determines the force production of a muscle, I.E the larger the muscle, the more contractor elements, thus potentially a stronger muscle
What is a neuromuscular unit called
A motor unit
What does a motor unit consist of?
An alpha neuron, and the muscle fibers it controls
What dates a motor units force production
The size of the motor unit
What is the all or non-principal?
Either the motor unit contracts or the muscle, fiber or none
What does a high frequency of twitches within a stimulated motor unit produce?
More force
What are the three types of muscle fibers?
Type I, Type IIa, Type IIx
What is a type I muscle fiber
Muscle fibers that are low in force production, however, high in duration/endurance
What are type IIa muscle fibers?
Muscle fibers that consist of a blend of endurance and short burst of power
What are type IIx muscle fibers?
Muscle fibers that are specifically for quick bursts of strong energy
What is proprioception?
When a muscle is stretched, deformation of the muscle spindle activates, a sensory neuron, sending an impulse to the spinal cord where is synapse with a motor unit, causing the muscle to contract. Tells the body the location and velocity of movement
What is GTO?
Golgi tendon Organ, it does the opposite of proprioception when an extremely heavy force is felt it blocks the sensory neuron from activating inhibiting the Motor neuron to contract muscle and is used to protect from major tears/damage
What are 3 general factors that will improve force?
Heavier loads - Will activate and recruit more motor units and frequency will adapt
Hypertrophy - the bigger the muscle, the more contractor element, thus a potentially stronger muscle
Performing multi muscular, multi joint exercises, explosively
What are the seven fundamental movement patterns?
Squat, hand, lunge, push, pull, brace, locomotion