I suffer from long-COVID and understand that respiratory muscle training can help. Might this work for me?

We suggest educating yourself before starting a respiratory muscle training (RMT) program and working with a clinician with first-hand knowledge. This clinical study consisted of over 200 COVID-19 sufferers with a positive impact on breathlessness, fatigue, and quality of life (QoL). You can read the research here: Inspiratory muscle training enhances recovery post-COVID-19: a randomized controlled trial. Also, you might read this testimonial from a long COVID-19 patient who found remarkable improvement in her overall health and well-being. She was guided by a professional and applied the effort to help herself improve significantly.