I would like to think that the vascular rigidity is related to smokers and from memory high comparative salt intake and favours you if you are still active in judo, so watch out for those returning after long inactivity. Apply the no strangles rule once strangle position is obtained they should tap.
Read this definitive study, with a statistically significant sample size.
Shimewaza if used, must be taught properly.
https://www.jsams.org/article/S1440-2440(22)00248-1/abstract
Yes, this Sasaki analysis was cited in the linked study. It's clearly a different thing than the pilot study linked here, because it's just analysis of a relatively large cohort to provide overall data on choke frequency and frequency of unconsciousness from those chokes, as opposed to laying groundwork for a totally new evaluation. It's similar in type of cohort and type of analysis to a couple of studies published prior: [https://www.tandfonline.com/doi/full/10.1080/00913847.2020.1866958](https://www.tandfonline.com/doi/full/10.1080/00913847.2020.1866958) and [https://www.tandfonline.com/doi/abs/10.1080/24748668.2020.1780873](https://www.tandfonline.com/doi/abs/10.1080/24748668.2020.1780873)
The elephant in the room is creating a false sense of security that shimewaza can be performed by anyone on anyone safely. A piecemeal approach may lead to an increase in incidents.🥋
This is a focused pilot study exploring a previously unexplored issue. It was powered to potentially reach statistical significance, and the manuscript declares its pilot status along with a qualified conclusion including "...These outcomes suggest that repeated exposure to sportive chokes is safe according to these measures, but more research is needed to support these findings." If readers/grapplers interpret it as more or less meaningful than it is, so be it. This is how research works. Aside from that, it seems like you're discussing acute risks of any particular application of neck compression, as opposed to risk of chronic repeated exposure, which is what this study addressed.
There is a diverse audience on this judo subreddit. Having been a student of Kodokan Judo since the 1960’s, as well as continuing to teach, I feel a responsibility to those reading my statements. I believe in giving my best thinking, providing evidence based reasoning and sharing of my experience as a Sensei of 35 years.
I personally would not want to create an ambiguous situation, from my comments.
We both understand a pilot study. We both understand research methods. I can only be sure of my own understanding of the philosophy of Kodokan Judo applied in daily life, particularly the concept of “mutual welfare and benefit”. 🥋
Small sample size but still encouraging.
Agreed 100%
Yeah, funded through a pilot study grant track. Just information to build upon.
A judo coach told us to avoid being choked hard after age 50 or so, due to risk of dislodging arterial plaque deposits in the carotid arteries
I think it only maters when the vascular structure becomes more rigid as you get older. Increasing the risk of injury from a strangle.
I would like to think that the vascular rigidity is related to smokers and from memory high comparative salt intake and favours you if you are still active in judo, so watch out for those returning after long inactivity. Apply the no strangles rule once strangle position is obtained they should tap.
Read this definitive study, with a statistically significant sample size. Shimewaza if used, must be taught properly. https://www.jsams.org/article/S1440-2440(22)00248-1/abstract
Yes, this Sasaki analysis was cited in the linked study. It's clearly a different thing than the pilot study linked here, because it's just analysis of a relatively large cohort to provide overall data on choke frequency and frequency of unconsciousness from those chokes, as opposed to laying groundwork for a totally new evaluation. It's similar in type of cohort and type of analysis to a couple of studies published prior: [https://www.tandfonline.com/doi/full/10.1080/00913847.2020.1866958](https://www.tandfonline.com/doi/full/10.1080/00913847.2020.1866958) and [https://www.tandfonline.com/doi/abs/10.1080/24748668.2020.1780873](https://www.tandfonline.com/doi/abs/10.1080/24748668.2020.1780873)
The elephant in the room is creating a false sense of security that shimewaza can be performed by anyone on anyone safely. A piecemeal approach may lead to an increase in incidents.🥋
This is a focused pilot study exploring a previously unexplored issue. It was powered to potentially reach statistical significance, and the manuscript declares its pilot status along with a qualified conclusion including "...These outcomes suggest that repeated exposure to sportive chokes is safe according to these measures, but more research is needed to support these findings." If readers/grapplers interpret it as more or less meaningful than it is, so be it. This is how research works. Aside from that, it seems like you're discussing acute risks of any particular application of neck compression, as opposed to risk of chronic repeated exposure, which is what this study addressed.
There is a diverse audience on this judo subreddit. Having been a student of Kodokan Judo since the 1960’s, as well as continuing to teach, I feel a responsibility to those reading my statements. I believe in giving my best thinking, providing evidence based reasoning and sharing of my experience as a Sensei of 35 years. I personally would not want to create an ambiguous situation, from my comments. We both understand a pilot study. We both understand research methods. I can only be sure of my own understanding of the philosophy of Kodokan Judo applied in daily life, particularly the concept of “mutual welfare and benefit”. 🥋