Yesterday I walked straight into a parking meter pretty hard because I'm an idiot. It didn't hit my head or anything but it got my chest/stomach and arm pretty bad. Of course immediately I thought it reconcussed me because thats my go to thing. And of course a headache and fogginess set in and I didn't sleep well. Just wanted to know how susceptible we are to body jolts and getting reconcussed from them. My anxiety says that a parking meter could do it but practically I want to say it would have to be a pretty notable slam to the body. Just wanted to hear other peoples thoughts.

No, this jolt would not cause a concussion. You would need to break your sternum and ribs before the impact would have enough energy to traumatize your brain. But, such a jolt can still be very upsetting, both from the pain and the startle.

This is a common new hazard as many people walk with their eyes on their smart phone. Hope that wasn't your mistake. YouTube has lots of these videos to laugh or cringe at. I cringe. Ouch. It hurts just to think about it. Just don't watch them while you are walking down a sidewalk, especially if it has a parking meter than can jump out and get ya.

You weren't being an idiot. You were just being human. We've all done things like this. We just try to avoid posting them online.

You'll be fine.

Mark, thank you so much for answering logically to my anxiety ridden responses. It's funny I walk around and whenever I think something concusses me and my best friend has to remind me it didn't I always say "you're right Mark from Idaho also said this couldn't concuss me" hahaha. I am getting help for anxiety. However today my psychologist was doing neuro-feedback with me and one of the wires went on top of my head and he was rubbing it really hard to put alcohol on when attaching it and he was going to do it again when taking it off and I said it was no big deal because I was going home to shower anyway. Anyway he said he'd do it anyway and proceeded to rub it super hard and then patted the top of my head pretty hard and now I'm freaking out. Do you think that'd concuss me? It was like a shockingly hard pat, and kind of hurt.

No, that pat was no even close to enough force. Your brain endures far more impacts by daily activities like walking down a step.

What kind of neuro-feedback was he doing ? What do you do during the therapy ?

Does he do CBT, Cognitive Behavior Therapy ?

How about conditioning therapy ?

That's what I keep trying to tell myself but then the other half of me says how could that not hurt me? It was honestly a hard pat, not sure why he thought it would be ok to do considering I'm there because of anxiety from a bad concussion. However, around 4 or so months into my recovery I stood up on a bus and banged my head on the ceiling which I thought was for sure going to send me back on progress and it shockingly did not. Just trying to remember these little things.

The neuro-feedback consisted of me watching a tv show of my choice with wires on my head while i tried to keep the video from losing sound or the screen darkening due to my mind wandering. I go to him for CBT but I'm honestly not sure if what we do is CBT. Feels like I just go in and tell him about my week and the little things that I think concuss me or the bad days I have. Sometimes he has me work on my breathing. I'm not familiar with conditioning therapy or what is consists of!

Conditioning therapy would be doing various touches to your head. If might start with telling you he is going to touch your head without you knowing when. Then, a tap. Some you know are about to happen. Others are without you having a sense of when. The goal is to help you learn to not react to the touches then taps and even bumps.

It may take quite a few light touches over time before you can progress to taps. You may need to even get used to tapping your own head.

CBT would entail retraining your thoughts in response to a head contact. It would fit well with conditioning therapy.

"What was that ? Oh, that was just a touch."

The point is to change the response from "Was that a concussion?" to "That was just a touch or tap." Eventually, you should be able to define it as "Just a bump." It may help to externalize the thought to "Stop that." or some concept that is not about your head.

You want to stop the "Was that a concussion?" response.

It sounds like the neuro-feedback is trying to help you learn relaxation and focus skills.

Just crashed my shopping trolley into the side of a table at the supermarket. Had my arms locked (was leaning on it and looking the other way). Pretty much dead stop, body went forward a little but I think that was too late.

Felt like a big jolt. Anxiety, dizziness, headache, feel very tired. 4 years post injury. Frack this, so sick of it. Anyone mind doing a g force calculation for me or something so I can can stop worrying - would like to actually go to work tomorrow rather then sit at home resting. Going to go lie down. Ugh.

Stop worrying. The force required to whip your head hard enough would have injured your shoulders. A full panic stop in a car can achieve 1.5 to 1.75 Gs against a shoulder harness seat belt. It takes 40 Gs for a subconcussive impact.

This messed me up for two weeks. Had 2 days off screen use and slept quite a lot. After that had nausea while using computer again, dizziness, vision focusing issues and fatigue. Was able to get to my part time job 5 days later but couldn't last more then an hour without a break. Also coffee started giving me a headache.

The computer use mostly came good around the two week period but still felt a bit dizzy when walking around. Had 5 sessions of HBOT this week which helped immensely and am now basically where I was computer wise 3 weeks ago and possibly better in terms of visual stability and feeling more conscious.

This was definitely more force then a car breaking hard, tyres simply cant stop fast enough to cause concussion unless you bash your head on the window or something.

Comparison would be more like a car crashing into a thick concrete wall at 5km/h with no crumpling and the seatbelt locking instantly and head not moving forward. Table and trolley had no give whatsoever (steel).

Based on calculations I found, when travelling 4.4m/s, stopping in 10cm will produce 10g and stopping in 1cm will produce 100g.

Football Physics: Putting G-Forces In Perspective

Forehead skin is about 1.5mm thick, so at 4.4m/s (running) speed you would produce 666g if your head went straight into a wall or the ground. Walking speed is more like 1.4m/s, which would be 212g - My original injury walking into a wall with forehead.

So if I strapped my head to the shopping trolley we'd be looking at 212g. Though obviously I had some minimal movement in arms, though they were pretty locked as I was leaning forward on them and not expecting the collision.

I'd say stop would be at least 1cm so more like 30g. Not enough to concuss a healthy person but it definitely affected me.

This is the worst hit I've had since my original injuries, and really the only one I think has actually affected me.

In summary, try to avoid crashing into immovable objects, or getting hit very hard while stationary. Everything else is probably anxiety.

You are grossly underestimating the deflection/distortion/deforming your body endured during those bumps. You say your body went forward a bit but you think it was too late. If your body went forward as a result of the sudden stop, it was definitely a factor that reduced the deceleration force.

But, go ahead and convince yourself you did 100Gs. I only offer my opinion once per crash. Those who want to redefine the event to justify their resulting symptoms are examples of classic anxiety/OCD.

Concussion Anxiety Syndrome is hitting epidemic levels.