[Paedor]

Is there a physical difference between using the resistance device, and just breathing through a narrow straw? It seems a lot cheaper to just jury-rig something.

[wodenokoto]

I thought the term was "jerry-rigged", but those are completely different.

- Jerry-rigged: Not really a term, but a mistaken mash-up of jerry-built (cheaply or poorly built) and jury-rigged (built with what's on hand)

- jury-rigged (built with what's on hand)

https://www.dictionary.com/e/jury-rigged-vs-jerry-rigged/

[Trouble_007]

>through a narrow straw

You can just use the palm of your hand over your mouth,

however to determine if you you are making progress, you make like a meter to measure your performance.

A Spirometer is an apparatus for measuring the Volume of air Inspired and Expired by the lungs : https://en.m.wikipedia.org/wiki/Spirometer

What Is an Incentive Spirometer? : https://www.webmd.com/lung/lung-incentive-spirometer

Edit add; the palm of

[reacweb]

Maybe playing the recorder or inflating balloons is as effective.