The #Qcollar jugular compression device is "FDA CLEARED" to "protect athletes' brains during head impacts." @US_FDA
Does this mean that it is safe, effective, and based on sound science?
Not quite! Before you believe the company's big claims, read this full thread!
Below is an index to my fully-referenced thread:
2/ A bit about what FDA cleared really means 3/ Critique of the study that got Qcollar FDA cleared 4/ Summary of problems w/ their other studies 5/ Qcollar's continued pattern of false claims 6/ Their plan to profit from taxpayers
2a/
Some semantics, note this isn't "FDA APPROVED" but rather "AUTHORIZED".
QCollar isn't claiming "approval," but many confuse these terms and assume this more stringent standard.
APPROVAL is more appropriate for Class III devices, which undergo more rigorous review.
If you don't understand the highly nuanced #MRI technique known as DTI, these results sound straightforward and convincing.
THEY ARE NOT. Don't be fooled by these numbers!🤔
I will dissect these in the thread below.
3a/
"No significant changes" is based AVERAGE response, not individual.
First, an easy-to-understand analogy below.
If half the sample experiences an increase and half experiences a decrease, they can cancel each other out to falsely suggest "no change" when one does exists!
The #Qcollar is based on the idea that jugular compression increases blood in the brain to create a "bubble wrap" effect, which prevents the it from bouncing around inside the skull.
According to the company, this mechanism is found in Nature. bit.ly/2KqTJvS
Thread/2b
From the company's promotional video, the device is justified based on reducing brain "slosh" by:
1) Replicating the animal adaptations (see 18:00 in video) 3) Replicating effects of "higher altitude" exposure (see 21:57, again at 36:00)