Accelerometer issues in vehicle

It is a Trade- off !!

by IAN MC - 2016-11-28 06:25:21

All the accelerator knows is that your upper body is moving and unfortunately we do not have an external Rate Response On-Off switch  .

All you can do is try having the RR sensitivity settings adjusted in the hope that a few tweaks will enable you to run AND  travel in your wife's car  .

But you may not achieve this and may have to accept some sort of a compromise.  As a runner myself I would replace your wife for one with a less bumpy car but that may not fit in with your plans.

I  have found that the accelerometer setting is something of a trade-off  and it will never be optimum for all exercise scenarios or all situations where movement is involved.

Best of luck

Ian

rate response

by Tracey_E - 2016-11-28 11:22:58

As Ian said, it's a trade off sometimes. They can try turning down the sensitivity, that might help but sometimes we have to pick. For me, if it's sensitive enough for a hard workout, it gets me short of breath pretty easily around the house or riding on bumpy roads. I decided to deal with that rather than scale back workouts. 

I haven't read your history or old posts, how much of a chance did you give CLS? Were you able to work with someone from the manufacturer who knows it inside and out and has experience with other athletes? CLS can be amazing, but only when the person doing the programming knows what they are doing. Even with that, it takes a while for it to learn you and it can be a struggle during that time, but in the end it is most like a normal, natural heartbeat. You've got state of the art, it's a shame you have to put up with the downsides of the old school rate response. 

C.L.S. ( Closed Loop Simulation Rate Response sensor )

by IAN MC - 2016-11-28 15:27:34

I remember earlier posts from Inga, a lady in Berlin , who had enormous problems with C.L.S. sensors. Apparently C.L.S. , if not adjusted properly, can lead to sudden rate-drops while exercising and the rate then refuses to increase.

Apparently C.L.S. does not understand the requirements of fit people who exercise , it thinks that the heart-rate is too high and automatically reduces it

I believe that this feature can be turned off but the bad news is that most cardiologists / PM techs do not understand this. As Tracey said you need someone who really does understand the ins and outs.  Have you persevered enough in getting the C.L.S. settings right or did you give up on it with an understandable frustration ?

Ian

sorry, was away a few weeks

by green18 - 2016-12-14 15:38:32

I am just a little torn over how to proceed.  Everything I read and study about CLS sounds so promising.  I just know it was AWFUL!  It shut down every attempt to exercise and when we looked at the history on the machine you could literally see it recording each attempt to run as an "event".  I know there is a way to configure this using CLS that would be amazing, yet my confidence is so low in the practioner's understanding of the settings I am terrified of taking a step backwards.  It has been years since I have been able to run like this.  

My saga started when I went in for years concerned over my inability to do strenuous exercise.  I would be put on the treadmill and pass with flying colors because I simply find really fast walking not strenuous.  I then started to have episodes of my heart stopping without warning.  The PM was recommended to stop these "fainting" episodes from happening.  I think there was more to it as the accelerometer has allowed me to run as I was able to years ago.  I don't think the heart rate would ramp up to meet demand appropriately but i have no word for that.

I feel a bit like I am self-managing this.  The other hospital in town recommended against the pacemaker and chalked it up to dehydration (even though no test results showed i was dehydrated).  I wish i could just work with Biotronik directly.