• Medicina · May 2023

    Randomized Controlled Trial

    Thoracic Mobilization and Respiratory Muscle Endurance Training Improve Diaphragm Thickness and Respiratory Function in Patients with a History of COVID-19.

    • Yang-Jin Lee.
    • Department of Physical Therapy, Gyeongbuk College, 77 Daehang-ro, Yeongju-si 36133, Gyeongsangbuk-do, Republic of Korea.
    • Medicina (Kaunas). 2023 May 9; 59 (5).

    AbstractBackground and Objectives: Common problems in people with COVID-19 include decreased respiratory strength and function. We investigated the effects of thoracic mobilization and respiratory muscle endurance training (TMRT) and lower limb ergometer (LE) training on diaphragm thickness and respiratory function in patients with a history of COVID-19. Materials and Methods: In total, 30 patients were randomly divided into a TMRT training group and an LE training group. The TMRT group performed thoracic mobilization and respiratory muscle endurance training for 30 min three times a week for 8 weeks. The LE group performed lower limb ergometer training for 30 min three times a week for 8 weeks. The participants' diaphragm thickness was measured via rehabilitative ultrasound image (RUSI) and a respiratory function test was conducted using a MicroQuark spirometer. These parameters were measured before the intervention and 8 weeks after the intervention. Results: There was a significant difference (p < 0.05) between the results obtained before and after training in both groups. Right diaphragm thickness at rest, diaphragm thickness during contraction, and respiratory function were significantly more improved in the TMRT group than in the LE group (p < 0.05). Conclusions: In this study, we confirmed the effects of TMRT training on diaphragm thickness and respiratory function in patients with a history of COVID-19.

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