Biomechanics

Question 1

Biotensegrity

Answer 1

Non-linear behavior in living systems, the tension and integrity of living systems, discontinuous with compression within continuous tensions

Question 2

Proprioception vs. Kinesthesia

Answer 2

Proprioception - changes in balance

Kinesthesia - where your body part is in space

Question 3

Kinetic Chain

Answer 3

Interrelated groups of body segments, connecting joints, muscles, and the portion of spine they connect - dont link each region of the body

Muscle acts as active shock attenuator → reduce loads
Dysfunctional → weakened muscles (less resistant to load)

Question 4

Pronation vs. supination - all joint triplane function

Answer 4

Pronation
(Prep to jump)
Eccentric muscle contraction
Deceleration
Absorbing energy from the ground into the muscle sarcomere to prepare for unloading (supination)

Triplane
Ankle dorsiflexion
Subtalar eversion
Midtarsalf joint splays inward - abduction

Question 5

Arthrokinematic reflex and AMI

Answer 5

Reflex: way in joint movement can reflexively cause muscle activation or inhibition

AMI:
Altered afferent information - pain & swelling
Reflexive muscle inhibition
Change in somatosensory cortex
Increased resilience on other cortical area
Decreased descending motor output

Question 6

Tensgrity

Answer 6

Structural relationship principle in which structural shape is guaranteed by continuous tension behaviors of the system

Question 7

Frayette Law 1&2

Answer 7

1: spine is bent, rotate in opposite direction- facets are not loaded - evenly distributing

2: Spine is bent: rotate in same direction - facets loaded - limited distribution

Question 8

Number 2 causes most low back pain of pelvic parameters

Answer 8

Number 2 causes most low back pain of pelvic parameters