Prediction for the maximum inspiratory pressure value from the thoracic expansion measurement in Indonesian healthy young adults

M. Moeliono, D. M. Sari, Taufiq Nashrulloh
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引用次数: 2

Abstract

Background The diaphragm is the primary muscle responsible for breathing. Weakness in the diaphragm will result in breathing difficulties. The micro-RPM (respiratory pressure meter) is a non-invasive testing device to measure respiratory muscle strength, which is not always feasible, while thoracic expansion measurements are easy to do. Aim This study constructs a prediction formula for a maximal inspiratory pressure (MIP) value from thoracic expansion measurements. Methods This study was quantitative with a cross-sectional design. Participants were healthy adults aged 20–40 years, with normal Mini-Mental State Examinations, body mass index, spirometry, and moderate activity levels. The tests performed were MIP and thoracic expansion measurements at three levels: axilla (L1), the fourth intercostal space (L2), and at processus xiphoideus (L3). The data were analyzed using an unpaired t-test and multivariate. Results The mean MIP for males (81.51 ± 13.90 cmH2O) was significantly greater than females (63.17 ± 15.89 cmH2O) (P = 0.0001). These findings were not different with the Chinese, Indian, Mangalorean, and Malaysian populations because they are all of Asian ethnicity. Thoracic expansion L2 (r = 0.463, P = 0.0001) and L3 (r = 0.502, P = 0.0001) were moderately correlated with MIP, whereas thoracic expansion L2, L3 combined with gender had a weak effect on MIP. The prediction formula was: MIP = 56.802 + 2.387 + L2 + 13.904 + Gender * and MIP = 53.289+ 3.561 + L3 + 9.504 + Gender *, * 0 = female; 1 = male. Conclusions A prediction formula for MIP can be made using the thoracic expansion variable with gender as a determinant factor. A quick and easy measurement of thoracic expansion can be used as a mean of screening respiratory muscle strength in patient care.
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印度尼西亚健康青年胸廓扩张测量预测最大吸气压力值
膈肌是负责呼吸的主要肌肉。膈肌无力会导致呼吸困难。micro-RPM(呼吸压力计)是一种测量呼吸肌力量的非侵入性测试设备,并非总是可行,而胸廓扩张测量则很容易做到。目的建立胸廓扩张测量的最大吸气压力(MIP)预测公式。方法采用横断面设计进行定量研究。参与者为20-40岁的健康成年人,具有正常的迷你精神状态检查、体重指数、肺活量测定和中度活动水平。所做的测试是MIP和三个水平的胸廓扩张测量:腋窝(L1)、第四肋间隙(L2)和剑突肌(L3)。使用非配对t检验和多变量分析数据。结果男性的平均MIP(81.51±13.90 cmH2O)显著高于女性(63.17±15.89 cmH2O) (P = 0.0001)。这些发现与中国人、印度人、芒果人和马来西亚人没有什么不同,因为他们都是亚洲种族。L2胸廓扩张(r = 0.463, P = 0.0001)和L3胸廓扩张(r = 0.502, P = 0.0001)与MIP中度相关,L2胸廓扩张、L3胸廓扩张合并性别对MIP影响较弱。预测公式为:MIP = 56.802 + 2.387 + L2 + 13.904 +性别*,MIP = 53.289+ 3.561 + L3 + 9.504 +性别*,* 0 =女性;1 =男性。结论胸椎扩张变量以性别为决定因素,可建立MIP的预测公式。一种快速简便的胸廓扩张测量方法可作为筛查患者呼吸肌力的一种手段。
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