anyone have shortness of breath when on oxygen and walking

I am the same way. It is very upsetting, because I loose all independence as I can’t even walk from parking lot to grocery store.

The highest setting on the Inogen one G5 which is same as Rove 6 is a 6 which gives you about the equivalent of just 1.25 continuous glow, so yeah WAY below a continuous flow setting.

I do my rowing using my stationary concentrator and gave to turn it up to 4 lpm CONTINUOUS flow to be able to row. My doc approves and likes me to stay >90% all the time. I can only exercise vigorously with the continuous flow at 4.

I can walk slowly using my Inogen on pulse @3 but if I want to push myself, I have to switch to continuous flow and increase the flow rate to 4 continuous. I cannot take my stationary concentrator out of the house. It’s too big & heavy.

By all means use a cart if you have a heavy machine or if tires you to wear or carry it. The more we do, the more we CAN do! I just slowly worked myself up for 16 minutes on the rowing machine, starting at 5 and then increasing a minute every 4th day. It’s slow and steady progress we need, not anything heroic.

I have an Inogen Rov 6 which replaced Inogen One 5.
On page 32 , 12.2 Pulse Setting CAUTION "The settings of this device may not correspond with the setting for devices that provide Continuous Flow Oxygen"
It also gives total volume per minute (ML/MIN) - that is not liters - for each setting
I have a 2L continuous flow prescription and cannot exercise with a Pulse flow setting of 2 as my O2 drops.
One learns a lot of strange things with illness
.

My prescription is in continuous flow liters, portable concentrators are usually pulse flow which is not the same thing. I set the pulse flow higher than the continuous flow to get a similar benefit.

I use a walker to hold my 02 concentrator when I am out. I use the walker inside also it does help with the breathing

I have an Inogen Rov 6 which replaced Inogen One 5.
On page 32 , 12.2 Pulse Setting CAUTION "The settings of this device may not correspond with the setting for devices that provide Continuous Flow Oxygen"
It also gives total volume per minute (ML/MIN) - that is not liters - for each setting
I have a 2L continuous flow prescription and cannot exercise with a Pulse flow setting of 2 as my O2 drops.
One learns a lot of strange things with illness
.

So too get the equivalent of 2 continuous, what does the Inogen need to be set to?

I had an inogen portable that never gave me enough oxygen. I was coming back from the shopping trip with sore muscles and headache . No matter how you set machines use an Oximeter to check your oxygen level. You will be surprised . If you turn a portable concentrator to its highest setting it will include more outside air to the “pulsed” action . Those settings on it are not ltrs. They are just settings on a knob. No portable oxygen concentrator can pulse deliver more than 3 ltrs. If you need more get a tank with a regulator and be nourished .

Mayo Rehab told me to look at output of the device. Unfortunately, prescriptions are on continuous flow not pulse flow. One would need to test using the portable pulse flow.
And of course, O2 saturation depends on what you are doing.
I check my O2 when exercising, but very difficult to get accurate O2 when exercising.
Ask your O2 prescribing doctor.