Chapter 2 - Foundations of Exercise Flashcards
Biomechanics
Study of how forces affect a living body.
Kinesiology
Study of Human movement
Kinetic Chain
The coordination of actions of the nervous, muscular, and skeletal systems to create movement. Also called the Human Movement System.
Anatomic position
Reference posture where body stands upright, arms are beside the trunk, palms & head face forward.
Anatomic Locations
- Superior: closer to head or above a landmark
- Inferior: toward the bottom part of the body or closer to the feet
- Proximal: closer to center of the body
- Distal: farther from the center of the body
- Medial toward the midline of the body
- Lateral: farther from the midline of the body
- Contralateral: on the opposite side of the body
- Ipsilateral: on the same side of the body
Midline
imaginary vertical line that divides the body into 2 halves.
Saggital Plane of Motion
- Divides body into right and left halves.
- Saggital plane moves are forward and back
- cycling, walking, squatting, etc.
- flexion & extension
Frontal Plane of Motion
- Splits body into front and back halves.
- Frontal plane moves are from side to side
- jumping jacks, warrior II pose, side lunges
- abduction, adduction, lateral flexion, eversion, inversion
Transverse Plane of Motion
- Divides body into top and bottom halves
- movements are parallel to an imaginary line between top and bottom halves of body
- round house kicks, lunges w/ rotation, triangle pose in yoga, bicycle crunches
- pronation, supination, internal & external rotations, horizontal abduction & adduction
Flexion
bending at joint where the relative angle between two bones decreases.
Extension
Joint movement where the relative angle between two adjoining segments increases.
Dorsiflexion
Anterior (or towards front or top) flexion of the ankle. Top of the foot moves up & away from the ground.
Plantar Flexion
Posterior (towards the the back side) extension of the ankle.
- Top of foot moves down toward the ground
- pointing toes.
Joint Actions in the Sagittal Plane
- flexion
- extension
- dorsiflexion
- plantar flexion
- happens in both anterior (towards the top or front) and posterior (towards the back) positions
Abduction
A part of the body moves way from the midline of the body
Adduction
A part of the body moving towards the midline of the body
-think of “adding to the body”
Eversion
bottom of the foot rotates outward (laterally)
Inversion
Bottom of foot rotates inward (medially)