ArticleJournal of Korean medical science2023
Reference Respiratory Muscle Strength Values and a Prediction Equation Using Physical Functions for Pulmonary Rehabilitation in Korea.
Article in Journal of Korean medical science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
13 citing papers in PubMed, 14 citations in OpenAlex.
- Cumulative Effects of Concurrent Inspiratory Muscle Training and Postural Correction Bands on Older Individuals Community Dwellers: A Randomized Study.Yonsei medical journal · 2024Trial
- Sex-Specific Cut-off Values for Respiratory Muscle Strength in Older Women: Screening Implications for Respiratory Sarcopenia.Journal of Korean medical science · 2026Article
- Reference Intervals and Prediction Equation for Sustained Maximal Inspiratory Pressure in Healthy Adults.Cureus · 2026Article
- Role of Respiratory Pressure in Swallowing Function and Aspiration Risk in Parkinsonism.Dysphagia · 2026Article
- Maximal Respiratory Muscle Strength in Singaporean Adults: Normative Reference Values and Predictive Models from a Cross-Sectional Study.Muscles (Basel, Switzerland) · 2025Article
- Relationship between hand grip strength and lung function among older adults in Korea: Secondary analysis of the Korea National Health and Nutrition Examination Survey.Journal of Korean gerontological nursing · 2025Article
- Breathless Strength: Ultrasonographic Insights into Expiratory Muscle Dysfunction in Spinal Cord Injury.Medicina (Kaunas, Lithuania) · 2025Article
- Use of Pulmonary Rehabilitation for Lung Cancer Patients in Korea: Analysis of the National Health Insurance Service Database.Journal of Korean medical science · 2025Article
- Response: Reply to the commentary on our study about respiratory muscle strength in stroke patients.Revista da Associacao Medica Brasileira (1992) · 2025Article
- Evaluating Respiratory Muscle Strength in Sarcopenia Screening among Older Men in South Korea: A Retrospective Analysis.The world journal of men's health · 2024Article
- Gender Difference in the Relationship between Extrapulmonary Factors and Reduced Lung Function in Early Adulthood.Journal of clinical medicine · 2024Article
- Comprehensive Assessment of Lower Limb Function and Muscle Strength in Sarcopenia: Insights from the Sit-to-Stand Test.Annals of geriatric medicine and research · 2024Review
- Generation of Normal Values for Respiratory Muscle Force Requires That the Control Group Be Examined Neurologically.Journal of Korean medical science · 2023Article
Corrections and comments
- Commented on by
- Erratum issued
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundIn Korea, tests for evaluating respiratory muscle strength are based on other countries' clinical experience or standards, which can lead to subjective evaluations. When evaluating respiratory function based on the standards of other countries, several variables, such as the race and cultures of different countries, make it difficult to apply these standards. The purpose of this study was to propose objective respiratory muscle strength standards and predicted values for healthy Korean adults based on age, height, weight, and muscle strength, by measuring maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and peak cough flow (PCF).
methodsThis cross-sectional study analyzed MIP, MEP, and PCF in 360 people, each group comprising 30 adult men and women aged 20-70, diagnosed as healthy after undergoing medical check-ups at a general hospital. Hand grip strength (HGS) and the five times sit-to-stand test (FTSST) results were also recorded. Correlations among respiratory muscle strength, participant demographics, and overall muscle strength were evaluated using Pearson's correlation analysis. The predicted values of respiratory muscle strength were calculated using multiple regression analysis.
resultsRespiratory muscle strength differed from the values reported in studies from other countries. In the entire samples, both MIP and MEP had the highest correlations with peak HGS (
conclusionRespiratory muscle strength index may differ by country. For more accurate diagnoses, standard values for each country are required. This study presents reference values for Korea, and a formula for estimation is proposed when no respiratory muscle strength measurement equipment is available.
trial registrationClinical Research Information Service Identifier: KCT0006778.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.