Background

The abdominal muscles play an important respiratory and stabilization role, and in coordination with other muscles regulate the intra-abdominal pressure stabilizing the spine. The evaluation of postural trunk muscle function is critical in clinical assessments of patients with musculoskeletal pain and dysfunction. This study evaluates the relationship between intra-abdominal pressure measured as anorectal pressure with objective abdominal wall tension recorded by mechanical-pneumatic-electronic sensors.

Methods

In a cross-sectional observational study, thirty-one asymptomatic participants (mean age = 26.77 ± 3.01 years) underwent testing to measure intra-abdominal pressure via anorectal manometry, along with abdominal wall tension measured by sensors attached to a trunk brace (DNS Brace). They were evaluated in five different standing postural-respiratory situations: resting breathing, Valsalva maneuver, Müller's maneuver, instructed breathing, loaded breathing when holding a dumbbell.

Findings

Strong correlations were demonstrated between anorectal manometry and DNS Brace measurements in all scenarios; and DNS Brace values significantly predicted intra-abdominal pressure values for all scenarios: resting breathing (r = 0.735, r² = 0.541, p < 0.001), Valsalva maneuver (r = 0.836, r² = 0.699, p < 0.001), Müller's maneuver (r = 0.651, r² = 0.423, p < 0.001), instructed breathing (r = 0.708, r² = 0.501, p < 0.001), and loaded breathing (r = 0.921, r² = 0.848, p < 0.001).

Interpretation

Intra-abdominal pressure is strongly correlated with, and predicted by abdominal wall tension monitored above the inguinal ligament and in the area of superior trigonum lumbale. This study demonstrates that intra-abdominal pressure can be evaluated indirectly by monitoring the abdominal wall tension.

中文翻译：

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在临床评估测试中，腹内压与腹壁张力相关

背景

腹肌起着重要的呼吸和稳定作用，并与其他肌肉协调调节腹内压稳定脊柱。体位性躯干肌肉功能的评估对于肌肉骨骼疼痛和功能障碍患者的临床评估至关重要。本研究评估了测量为肛门直肠压力的腹内压与机械-气动-电子传感器记录的客观腹壁张力之间的关系。

方法

在一项横断面观察研究中，31 名无症状参与者（平均年龄 = 26.77 ± 3.01 岁）接受了测试，通过肛门直肠测压法测量腹内压，同时通过连接到躯干支架（DNS Brace）上的传感器测量腹壁张力。 ）。他们在五种不同的站立姿势呼吸情况下进行了评估：静息呼吸、Valsalva 动作、Müller 动作、指导呼吸、拿着哑铃时的负荷呼吸。

发现

在所有情况下，肛门直肠测压和 DNS Brace 测量之间都显示出强烈的相关性；和 DNS Brace 值显着预测所有情况下的腹内压值：静息呼吸 ( r  = 0.735, r ²  = 0.541, p  < 0.001), Valsalva 动作 ( r  = 0.836, r ²  = 0.699, p  < 0.001), Müller's机动（r  = 0.651，r ²  = 0.423，p  < 0.001），指导呼吸（r  = 0.708，r ²  = 0.501，p  < 0.001）和负荷呼吸（r = 0.921，r ²  = 0.848，p  < 0.001）。

解释

腹内压与腹股沟韧带上方和上腰三角区域监测的腹壁张力密切相关，并通过其预测。这项研究表明，腹内压可以通过监测腹壁张力来间接评估。