PDF(Pubmed)
Abstract：
The aim of the present study was to determine the gender respiratory differences of bilateral diaphragm thickness, respiratory pressures, and pulmonary function in patients with low back pain (LBP). A sample of 90 participants with nonspecific LBP was recruited and matched paired by sex (45 women and 45 men). Respiratory outcomes included bilateral diaphragm thickness by ultrasonography, respiratory muscle strength by maximum inspiratory (MIP) and expiratory (MEP) pressures, and pulmonary function by forced expiratory volume during 1 s (FEV1), forced vital capacity (FVC) and FEV1/FVC spirometry parameters. The comparison of respiratory outcomes presented significant differences (p < 0.001), with a large effect size (d = 1.26-1.58) showing means differences (95% CI) for MIP of -32.26 (-42.99, -21.53) cm H2O, MEP of -50.66 (-64.08, -37.25) cm H2O, FEV1 of -0.92 (-1.18, -0.65) L, and FVC of -1.00 (-1.32, -0.69) L, with lower values for females versus males. Gender-based respiratory differences were presented for maximum respiratory pressures and pulmonary function in patients with nonspecific LBP. Women presented greater inspiratory and expiratory muscle weakness as well as worse lung function, although these differences were not linked to diaphragm thickness during normal breathing.
摘要：
本研究的目的是确定双侧膈肌厚度的性别呼吸差异，呼吸压力,下腰痛（LBP）患者的肺功能。招募了90名非特异性LBP参与者的样本，并按性别配对（45名女性和45名男性）。呼吸结果包括超声检查的双侧膈肌厚度，最大吸气（MIP）和呼气（MEP）压力的呼吸肌强度，和1s期间用力呼气容积（FEV1）的肺功能，强迫肺活量(FVC)和FEV1/FVC肺活量测定参数。呼吸转归的比较表现出显著差异(p<0.001)，具有较大的效应大小（d=1.26-1.58），显示MIP的均值差异（95％CI）为-32.26（-42.99，-21.53）cmH2O，-50.66(-64.08,-37.25)cmH2O的MEP,FEV1为-0.92（-1.18，-0.65）L，FVC为-1.00（-1.32，-0.69）L，女性与男性的价值较低。非特异性LBP患者的最大呼吸压和肺功能存在基于性别的呼吸差异。女性表现出更大的吸气和呼气肌无力以及更差的肺功能，尽管这些差异与正常呼吸时的膈肌厚度无关。
