body comp

Question 1

ways to measure to human body

Answer 1

BMI
Body composition
Centre of mass

Question 2

how to measure body size

Answer 2

Height and weight
Stature (m) and body weight (kg) is a scientific analogue
Stature is more precise

Question 3

what is morphology and Somatotypes

Answer 3

Morphology (somatotypes evaluated by muscularity, linearity and fatness)- to evaluate Body build
Somatotypes is a graph to show different body sizes

Question 4

Body composition measurements

Answer 4

Chemical/ tissue composition

Question 5

BMI index equation

Answer 5

BW/H^2

Question 6

what is BMI linked to (negative factors)

Answer 6

a risk of death
Increased risk associated with being overweight/underweight with all causes

Question 7

what and who is BMI used by commonly

Answer 7

for body fat and obesity
used by clinicians, researchers etc.

Question 8

what is WHO’s role in BMI

Answer 8

Threshold values defined by the World Health Organisation (WHO)

Question 9

limitations of BMI

Answer 9

Good for populations but limitations for individuals (especially athletes)

Question 10

NFL football players
BMI

Answer 10

25-33

Question 11

NBA basketball players
BMI

Answer 11

24.5

Question 12

Professional cycling
BMI

Answer 12

21.5

Question 13

Visceral fat indicators

Answer 13

Greatest risk to health
Deposited around organs
Abdominal measures
Waist: Hip ratio, Waist circumference

Question 14

how science measures body composition

Answer 14

dissection, medical imaging, skinfold (kinanthropometry), Biometric impedance, archimedes (weighing it air then weighing in water for density), air displacement (Bod Pod)

Question 15

Densities of bone, muscle and fat

Answer 15

Bone >muscle> fat

Question 16

Density equation

Answer 16

= Mass/ Volume kgl-1

Question 17

what is closely related to body comp

Answer 17

tissue density

Question 18

define Centre of mass

Answer 18

Is the point where the mass is equally distributed in all directions

Question 19

describe CoM for flat object with uniform mass

Answer 19

center of mass is middle of object

Question 20

describe CoM for humans

Answer 20

are not uniformly dense/ perfectly symmetrical

Question 21

what is the segmental methods

Answer 21

shows Each part of the body has its own CoM

Question 22

define Kinematics

Answer 22

Is the branch of biomechanics concerned with describing the motion of bodies

Question 23

define speed

Answer 23

Is the magnitude of the instantaneous velocity

Question 24

define velocity and provide equation

Answer 24

change in position/ change in time
Not always constant
Signs ± provides direction of motion

Question 25

define acceleration

Answer 25

Is the rate of change in velocity
Is the derivative of velocity with respect to time or the second derivative of position with respect to time

Question 26

where is the greatest acceleration on a graph

Answer 26

steepest gradient

Question 27

what equation to use when working out horizontal/vertical velocities : projectiles

Answer 27

Use SOH CAH TOA

Question 28

History of High jumping

Answer 28

Scissors
Western roll
Straddle
Frosbury flop : Dick Fosbury in 1968 Olympics
Biomechanically efficient and CoM stays under bar as body goes over

Question 29

how is there an Illusion of floating : grand jete

Answer 29

CoM follows normal trajectory but appears floating bc
head stays level, raised arms & legs at peak