HL
Coordinates sequences of skeletal muscle contractions
Cerebellum
Types of bones
Types of muscle fibers
Slow twitch (type I) and fast twitch (type IIa and type IIb)
Definition of skill
Consistent production of goal-oriented movements, which are learned and specific to the task
The ratio of the force of friction between two bodies and a normal reaction force
Coefficient of friction (F/R)
Attachment of a muscle tendon to a
stationary bone
Origin
Neurotransmitters involved in skeletal muscle contraction
Acetylcholine and cholinesterase
Psychological refractory period
Single channel mechanism and how PRP helps to explain deception in sports.
Potential negative implication of genetic screening
May lead to gene doping for athletic improvement
Involuntary exclusion from sports or employment
Tidal volume
Volume of air breathed in and out in any one breath
Factors affecting projectile motion
Angle, speed and height of release
Teaching styles
Command, reciprocal, problem solving
Regulation of hormone levels
They are regulated by complex feedback loops
that may be influenced by:
• signals from the nervous system, such as adrenaline
• chemical changes in the blood, such as insulin
• other hormones, such as growth hormone.
Blood pressure with static vs dynamic exercise
Static exercise: both diastolic and systolic increase
Dynamic exercise: only systolic increases
DOMS
Delayed onset muscle soreness (eccentric contractions - minimize: warm up and cool down, progression, avoid eccentric at the beginning)
Health related components of fitness
Body composition, cardio-respiratory fitness (aerobic capacity), flexibility, muscular endurance, strength
Causes of peripheral fatigue in endurance activities
• depletion of muscle and liver glycogen
reserves
Reduction in Ca2+ release, depletion of acetylcholine, dehydration, electrolyte loss, overheating
Composition of blood
Blood is composed of cells (erythrocytes, leucocytes and platelets) and plasma.
Bernoulli's principle
The relationship between airflow velocity and air pressure is an inverse one
Tests to measure aerobic capacity
Multistage fitness test/ bleep test (Leger test), Cooper’s 12-minute run, Harvard step test