Kinesiology intro 1

Human movement from the point of view of the physical sciences. Mechanics: Biomechanics Anatomy: Musculoskeletal anatomy Physiology: Neuromuscular physiology

Every structure that participates in movements of the body does so according to physical and physiological principles.

Human movement from the point of view of the physical sciences. Mechanics: Biomechanics Anatomy: Musculoskeletal anatomy Physiology: Neuromuscular physiology

Every structure that participates in movements of the body does so according to physical and physiological principles.

Safety structure movements to avoid harm to the

body Effectiveness

success or failure of meeting performance goals

Efficiency striving to achieve movement goal with

least amount of effort

Safety structure movements to avoid harm to the

body Effectiveness

success or failure of meeting performance goals

Efficiency striving to achieve movement goal with

least amount of effort

Therapist & athletic trainers Primarily concerned with effects that exercise

has on the body for restoration of impaired function

Movement/Fitness professionals Primarily concerned with creating effective

performance the normal body or extending care

Therapist & athletic trainers Primarily concerned with effects that exercise

has on the body for restoration of impaired function

Movement/Fitness professionals Primarily concerned with creating effective

performance the normal body or extending care

Describing a skill in a logical fashion Fundamental elements / components

Evaluating performance how related anatomical & mechanical

principles occur and/or have been violated. Prescribing corrections based on

appropriate identification of cause

Describing a skill in a logical fashion Fundamental elements / components

Evaluating performance how related anatomical & mechanical

principles occur and/or have been violated. Prescribing corrections based on

appropriate identification of cause

1. Description of the motor skill performance

2. Anatomical analysis3. Mechanical analysis4. Prescriptions should be aligned with:

motor skill, anatomical analysis, and mechanical analysis

Primary purpose of the skill Speed, accuracy, form, etc Movement phases

Classification of the skill Posture—standing, seated, supine Movement purpose: PA, fitness, performance Motion Focus (internal/external)

Nature of motion Simultaneous – segments move as one Sequential – segments in an orderly sequence

Primary purpose of the skill Speed, accuracy, form, etc Movement phases

Classification of the skill Posture—standing, seated, supine Movement purpose: PA, fitness, performance Motion Focus (internal/external)

Nature of motion Simultaneous – segments move as one Sequential – segments in an orderly sequence

• Joint actions & segment motions: Joints are involved Exact movements in skill Any limited range of motion

Muscle participation & form of contraction: Muscles produce joint actions Type of contraction

• Joint actions & segment motions: Joints are involved Exact movements in skill Any limited range of motion

Muscle participation & form of contraction: Muscles produce joint actions Type of contraction

Nature of forces causing or impeding motion Ex: Difference in Left/right during gait Modifying forces

Mechanical factors: balance, forces, direction, timing, etc.

Violation of principles: No optimal application of mechanical factors What are the sources of error?

Nature of forces causing or impeding motion Ex: Difference in Left/right during gait Modifying forces

Mechanical factors: balance, forces, direction, timing, etc.

Violation of principles: No optimal application of mechanical factors What are the sources of error?

. Improvement of performance

Strategy for effecting change Based on kinesiological analysis Modify principles (motor, anatomical,

mechanical) be so that movement performance may be optimized

Concentrate on the causes of dysfunction, not on the symptoms

. Improvement of performance

Strategy for effecting change Based on kinesiological analysis Modify principles (motor, anatomical,

mechanical) be so that movement performance may be optimized

Concentrate on the causes of dysfunction, not on the symptoms

Analysis ModelJointJoint Joint Joint

ActionActionSegment Segment MovedMoved

Plane & Plane & AxisAxis

ForceForce Contraction Contraction TypeType

Prime Prime MoversMovers

• Which anatomical principles contribute to efficiency or accuracy?• Which principles are related to avoidance of injury?