“…RMST contains inspiratory muscle strength training (IMST), expiratory muscle strength training (EMST), and a combination of IMST and EMST. RMST has been used widely in people with chronic respiratory diseases (Charususin et al, 2018 ; Xu et al, 2018 ; Figueiredo et al, 2020 ; Buran Cirak et al, 2022 ), and increased studies for RMST in neurodegenerative diseases are concerned (Huang et al, 2020b ; Valenza et al, 2020 ; Dorça et al, 2021 ). RMST is easy to perform and cost-effective for older adults with PD, which can be used in clinical or at home to improve respiratory-related dysfunctions.…”