Quiz 1

Growth and Development

Motor development

Continous age related progress of change in movement behaviour across a lifespan

• Focusing is on the interacting constrains in different changes

Growth

• Quantitive

• Increase size or mass

Maturation

• Qualitative

• Advance in cells, organs, or body systems

Aging

Process occurring with passage of time

Differentation

Progressing from gross, immature movements to more precise, specific, intentional movement

• Different body parts gain more specific control

Integration

The ability to coordinate multiple motor system in unison

• Once different componets can be controlled, they need to work together

Gross movement

Movements using large muscle groups

• Involving the whole body

Fine movement

Movement using small muscle groups

Newtons first law

Objects in motion stay in motion UNTIL acted upon by a face

• Changing a movement require force

Inertia and Momentum

• Resistance to motion related to mass

• Product of mass and velocity

Newtons second law

Acceleration of a person or object is based on the force applied

• More force = More acceleration

• STUMPY throwing

Newtons third law

For every action, theres an equal opposite reaction

• Skating

Balance

The ability to maintain control over ones body position

• Maintain equilibrium

• Whether I can keep myself from falling

Stability

Resistance to movement

• How difficult it is for your body to move out of position

• How easy or difficult it is to make me lose that balance

3 Developmental perspectives

1. Maturational perspective

2. Info processing perspective

3. Ecological perspective

Maturational perspective

Timing and tempo of motor development is driven by genetics and heredity

• CANNOT force development

Environment and training can temporarily speed up motor development, BUT do not change its development course. BIOLOGY determines it…

Normative descriptive period

Expected stages of a childs life

• Gives us useful developmental milestones that can help us identify whats in progress

Biomechanical descriptive period

How movements change as children develop

Focus on Central Nervous system

CNS matured allowing increas

Information processing perspective

Movements are a result of soecific environmenal inputs

• Our brain is a computer

Ecological perspective

Guided by internal and external systems

1. Dynamical systems approach : Pattern chnages depending on situation

2. Perception-action approach : You see what you need to do, and do the action

Newell’s model

3 major types of constraints : Individual, Environmental, and Task

• Not restraints

Prenatal periods

1. Embryonic growth : Conception to 8 weeks

2. Fetal Growth : 9 weeks to birth

Peak weight velocity

The fastest rate at which a person grows in height during the adolescent growth spurt

Stature

• (standing height)

A mesurement between the vertex and the floor

5 systems

SMAEN (individual strucural)

• Skeletal

• Muscular

• Adipose

• Endocrine

• Nervous

Ossification

Process of laying down new bone material