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•  Alan Shephard and Edgar Mitchell - made history when they became the first people to play sport on the moon.
• Sports injuries are commonly caused by overuse, direct impact, or the application of force that is greater than the body part can structurally withstand.
• Common injuries include bruises, sprains, strains, joint injuries and nose bleeds.
• • Medical investigation is important, as leaving an injury untreated can have far more severe consequences.
• Includes your bones, cartilage, ligaments, tendons and connective tissues.
• musculoskeletal system Includes your bones, cartilage, ligaments, tendons and connective tissues.
• musculoskeletal system - Together, they support your body’s weight, maintain your posture and help you move.
• Bones - support your body, protect organs and tissue
• Cartilage - type of connective tissue, cartilage cushions bones inside your joints
• Joints -Some joints have a large range of motion, such as the ball-and-socket shoulder joint.
• Tendons - connect muscles to bones
• Ligaments - connect bones and help stabilize joints.
• Muscles - allow you to move, sit upright and stay still.
• BONES - provides shape and support for the body, as well as protection for some organs.
• CARTILAGE -

  a resilient and smooth elastic tissue, rubber-like padding that covers and protects the ends of long bones at the joints and nerves
• JOINTS - is the part of the body where two or more bones meet to allow movement.
• There are about 600 muscles in the human body.
•  tendon - is a cord of strong, flexible tissue, like a rope. Tendons connect your muscles to your bones. Tendons let us move our limbs
• Ligaments - are bands of tissue that help hold bones, joints and organs in place. You can take several steps to protect your ligaments
•  tension force is often given as a "pulling" force. The load being placed upon the material must be applied axially to be a tension force.
• TENSILE FORCES - is often given as a "pulling" force. The load being placed upon the material must be applied axially to be a tension force.
• COMPRESSIVE FORCES  is the application of power, pressure, or exertion against an object that causes it to become squeezed, squashed, or compacted.
• SHEAR FORCES - are unaligned forces pushing one part of a body in one specific direction, and another part of the body in the opposite direction.
• TYPES OF SPORTS INJURIES
• An injury that occurs suddenly, such as a sprained ankle caused by an awkward landing, is known as an acute injury.
• CHRONIC are caused by repeated overuse of muscle groups or joints. Poor technique and structural abnormalities can also contribute to the development of chronic injuries. 
• ACUTE - generally, an injury that is severe and with sudden onset. Sprained ankles, strained backs, and fractured hands are acute injuries.
• Acute injury - is a sudden injury that is usually associated with a traumatic event such as clashing into another player during sports or a fall from a bike. 
• EXAMPLES OF ACUTE INJURIES

  -SPRAIN


  -STRAIN

  -WOUND

  -DISLOCATION

  -FRACTURE
• A chronic injury is the result of prolonged, repetitive motion that is particularly common in endurance sports such as swimming, running and cycling.
• CHRONIC - are often referred to as overuse injuries – injuries resulting from overusing one body area while playing a sport or exercising over a long period.
• TYPES OF OVERUSE INJURIES

  STAGE 1, STAGE 2, STAGE 3
• STAGE 1 - Injury complain only after the activity game, or training sessions.
• STAGE 2 - Injury complain during the activity but do not feel it during the rest.
• STAGE 3 - The athlete feels pain whether at rest or play.
• Swelling - is the result of the increased movement of fluid and white blood cells into the injured area.
• SWELLING - The release of chemicals and the compression of nerves in the area of injury cause pain.
• SWELLING - The pain and swelling can keep the athlete from using the injured part, serving to protect it from further injury. 
• A sprain is a stretching or tearing of ligaments — the tough bands of fibrous tissue that connect two bones together in your joints. The most common location for a sprain is in your ankle.
• A strain is when a muscle is stretched too much and tears. It is also called a pulled muscle. A strain is a painful injury. It can be caused by an accident, overusing a muscle, or using a muscle in the wrong way