AUTHOR=Sun Yongchang , Zhang Lijiao , Cai Hua , Chen Yahong TITLE=Editorial: Osteoporosis, sarcopenia and muscle-bone crosstalk in COPD JOURNAL=Frontiers in Physiology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2022.1040693 DOI=10.3389/fphys.2022.1040693 ISSN=1664-042X