P.E. Biomechanics and Movement

What is agility?

Agility is a person's ability to move the body quickly and easily. It also includes the ability to quickly and easily change direction while maintaining one's balance. Agility is essential to sports such as soccer, boxing, and basketball

What is coordination?

Coordination is the skillful and effective interaction of movements. Controlling a hockey puck requires good hand-eye coordination

What is power?

Power is the ability to move the body parts quickly while applying the maximum force of the muscles. It is a combination of both speed and muscular strength. When we perform a task as quickly and as forcefully as we can, the result is powerful. In track and field, power is an essential element of a sprint start, shot-put, high-jump, and long-jump

What is speed?

Speed is the ability to move fast. Sprinters use many types of training methods to improve their speed

Numerical measurements of length, force, and weight of bone and muscle allow the body to be studied just as

a engineer studies a machine's functions

The glide technique consists of?

a jump backward, a 90-degree pivot of the body, and then a final push of the shot into the air

Which data-gathering activity would be useful for a biomechanical analysis? a.) measuring the strength of a person's leg muscles b.) counting the number of tickets sold for a ball game c.) judging the enthusiasm of a winning athlete d.) surveying people about the difficulty of soccer drills

a, measuring the strength of a person's leg muscles

What is balance?

ability to maintain equilibrium so as not to fall. For example, gymnasts must be able to keep their balance on a four-inch-wide beam while performing routines

When you land, your hips, knees, and ankles flex again, this time to?

absorb energy

Leverage is created when a force is?

applied to a stiff bar to make the bar apply force to another object

What do biomechanics measure?

attributes and movements of the human body in numbers

What is an example of a machine using leverage?

backhoe

A shot-putter using the glide technique faces?

backward with a leg lifted into the air

Skill-related fitness includes?

balance, agility, speed, power, and coordination

Athletic performance can be improved using the numbers revealed by?

biomechanical analysis

Different types of forces act on the body, affecting its?

biomechanics

What is an example of a measureable property?

bone

The lever arm operates when muscles pull on the?

bones that make up the lever arm

. A critical injury may result in a?

broken arm or leg, an amputation, unconsciousness, blindness, or substantial blood loss

The force generated by your muscles?

causes your body to move up

When a person kneels to pick up a shell on the beach, what type of movement is exhibited at the knee joints?

flexion

A backhoe arm and a human arm operate on the same principles of ?

force and leverage

Which two concepts explain how the body produces movement?

force and leverage

Tension is created when a?

force pulls on a part of the body, creates stress, and causes the body part to stretch

Internal forces within the leg and body propel people?

forward as they run

Shot putter faced?

forward from the back of ring

One refinement of the shot putter technique is?

glide technique

What is an example of an external force?

gravity

A training plan to increase performance must consider two different components of fitness?

health-related fitness, and skill-related fitness

What is an example of compression?

hikers carry backpacks with padded belts that place most of the weight on the hips, rather than the shoulders

We can use force and leverage to explain?

how the muscles and skeleton work to create movement

People are getting stronger because of?

improvement of athletic training and technique

When biomechanics are applied to fitness, what are the 2 goals?

increase performance and reduce injury

Athletes train to improve performance and to reduce the likelihood of?

injury

Internal forces can occur?

inside the body between muscles, tendons, bones, and ligaments

In biomechanics, stress refers to?

internal forces that have the potential to damage tissue

What is biomechanics?

is the study of the movement of a living body, including how muscles, bones, tendons, and ligaments work together to produce movement

Running is a cyclic, repetitive motion that consists of movements placing constant stress on?

legs and feet

Precision and uniformity are important to a ceremonial unit's?

marching style

Our living tissues have?

measurable properties

Each bone has a fixed length and diameter that can be?

measured

The amount of force a contracting muscle produces cane be?

measured

The distance a bone can bend before it breaks can be?

measured too

Which action is an application of biomechanics?

measuring a person's running dynamics and making changes to improve performance

Which injury stimulates muscle growth?

microtrauma

Internal forces between the skeletal and muscular systems create?

movement

A biomechanical analysis of movement must consider how each?

muscle plays a role in a complex movement

Most movement of the body is the result of ?

muscles and bones working as levers

What is compression?

occurs when a force pushes on an object in a way that squashes the object down

What is rotation?

occurs when an object moves around a fixed point, resulting in a circular or semicircular movement

What is extension?

occurs when the inside angle of a joint increases

Biomechanics helps us understand all of the components of performance?

on the outside and the inside of the body

Force requires energy to be released by?

one object and absorbed by another object

External forces come from the?

outside of the body

What builds up strength and reduces injury?

power lifters

Muscle contraction provides?

power to move

What is leverage?

result of muscles pulling against bones

What are the basic types of movements?

rotation, extension, and flexion

Overuse injuries are common with?

runners

The term "critical injury" describes a range of?

serious injuries

Overuse injury is the accumulation of man?

small injuries

Biomechanics plays an important role in skill-related fitness, which is used to reach?

specific performance or skill-related goals.

What is another technique?

spin where the shot putter spins before releasing the shot

Health-related fitness includes?

strength training, flexibility, and cardiovascular exercise

Muscle can?

stretch and contract

Biomechanics is a complex field of?

study with many areas of research

What is one application of biomechanics?

studying the way soldiers march is just one application of biomechanics

What is an example of tension?

the force of a man's body weight pulls on the ligaments and bones of his arms as he hangs from a ledge by his fingertips

What is flexion?

the opposite of extension, occurs when the inside angle of a joint decreases

What is physics?

the study of the mathematics of movement and interaction of nonliving objects

The lower part of the body is better at handling compression than?

the upper body

When a stress is repeatedly placed on a part of the body, causes?

tiny tears in muscle tissue

Force is a push or a pull applied?

to a body or an object

If microtraumas do not heal properly, they may accumulate to the point?

where noticeable pain and inflammation occur