pes Flashcards
(24 cards)
what are the characteristics of skeletal muscle tissue
is a highly organized tissue composed of bundles of muscle fibres called myofibers which contain several myofibrils.
what is contractibility
shortening the muscle and decreasing the angle between 2 points.
what is extendibility
lengthening the muscle and increasing the angle between 2 points.
what is elasticity
how much a muscle can stretch
how do the origin and insertion points determine the action of the muscle
Origin is relatively the less movable end of the muscle/tendon that is attached to a bone.
Insertion is the more flexible end of the muscle that is usually attached to a bone via tendons.
what are the origin and insertion points of skeletal muscles
The origin is the attachment site that doesn’t move during contraction, while the insertion is the attachment site that does move when the muscle contracts.
what is origin
the point at which the muscle joins the stationary bone.
what is insertion
the point where the muscle’s tendon joins the moving bone.
how long does ATP-CP last for
10 seconds of high intensity physical activity.
how long does Lactic Acid last for
30sec to 2 minutes
how long does Anaerobic last for
10-15 seconds.
how long does aerobic last for
2-3 minutes or as long as you need
what are 2 ways to test fitness
1.field 2.lab
what does ATP stand for
Adenosine Triphosphate
what does ATP-CP stand for
Adenosine Triphosphate + Creatine Phosphate
what does the anaerobic system do
providing energy for all forms of physical activity.
what does aerobic system do
uses oxygen to enable you to exercise at a level of intensity for sustained periods of time.
what are simple test to measure the capacities of the aerobic energy system
the beep test: it’s used to measure aerobic fitness by predicting maximum oxygen uptake (VO2max) and performance.
what are simple test to measure the capacities of the anaerobic energy systems
The Wingate test: typically involves 30 seconds of maximal exercise.
what does lactic acid system do
is the body’s method of rapidly creating energy in the form of ATP
how prevention of sport injuries using protective equipment
well-fitting uniform and shoes as well as helmet, mouthguard or body pads can prevent injuries so they can move freely and naturally.
how prevention of sport injuries ensuring a safe environment
making sure that surfaces are level, smooth and free of objects, making sure areas on indoor courts are not slippery and enough space so no athletes cant collide together.
how prevention of sport injuries using effective warm-up and cool-down
warm-up: raising the body temperature and increasing blood flow to muscles.
cool-down: heart rate and blood pressure slowly recover to pre-exercise levels.
