This similar article: https://www.eatthis.com/news-imst-high-resistance-inspiratory-muscle-strength-training/ https://www.eatthis.com/news-imst-high-resistance-

This similar article: https://www.eatthis.com/news-imst-high-resistance-inspiratory-muscle-strength-training/ https://www.eatthis.com/news-imst-high-resistance-inspirator... Links to this (also recent) article: https://www.ahajournals.org/doi/10.1161/JAHA.121.020980 https://www.ahajournals.org/doi/10.1161/JAHA.121.020980 Which links to https://www.clinicaltrials.gov/ct2/show/NCT03266510?term=NCT03266510&draw=2&rank=1 https://www.clinicaltrials.gov/ct2/show/NCT03266510?term=NCT... Which might be from 2017? Or study began in 2017, updated May 2021?