topic 13 - protective equipment Flashcards
what was the original helmet for
reduce risk of skull fractures
what are the newer helmet models for
potential to reduce impact forces
(ineffective in mitigating the mvmt of the brain inside the skull)
what is the guardian cap
consists of soft shelled, closed foam covered in spandex mounted to the helmet using straps near the facemask and back
adds about 1/2 pound of weight
extra layer of absorption
what is the benefit of the guardian cap
increase the distance of deceleration = lower total forces transmitted to the brain
not really a significant difference in head kinetics
better at lower velocity - works in lower level players
what are the benefits of rugby scrum caps
experimentally reduced linear and rotational impacts
not a ton of difference in injury risk between wearing and not wearing
when did helmets become implemented in the NHL
goalies in the 1930s to prevent skull fractures
players in 70s
does wearing bike helmets reduce the number of patients with a concussion
fewer facial fractures, skull fractures, and major TBIs
doesn’t mean that less is happening but changing more severe TBI to less severe (concussion)
head injuries go up as helmet use goes down
what is MIPS (multidirectional impact protection system)
slip liner inside helmet
allows the head to slide relative to the helmet during impact
most protective at low velocity impacts (can’t disperse high velocity as well)
what is the comparison between new tech and regular helmets
new tech performed better than conventional helmets at low velocity and angular momentum
is there a difference in SRC injuries in soccer with or without headgear
no conclusive results
most contact leading to concussions is player to player not player to ball
what is armourgel
- impact protection proportional to the force applied
- material that stiffens the harder it’s hit
- changes shock absorption with shock applied
- disperse force over a greater distance
what were the results of the soccer heading study related to headgear
No headgear - 98% of impacts over 10G
F90 cap - 86% of impacts over 10G
Custom armour gel - 73% of impacts over 10G
F90 cap = 15% less linear and 22% less rotational
Armourgel = 58% less linear and 48% less rotational
what were the results of the soccer heading study overall
larger reduction in number of severity of symptoms (headache, pressure in the head, and neck pain)
improved quiet stance balance after headgear
no alterations to executive function markers
improved reaction times in both cases
what is the q collar
saying it reduces internal forces by applying pressure to the jugular vein and making the brain feel more full
- idea is that it prevents the brain from shaking inside the skull
- traps blood in the brain for longer
what is the q collar based on
woodpecker (tongue wrapped inside skull)
- not extra fluid
