青年人躯干压力生物反馈与膈肌功能参数的相关性

Trunk pressure biofeedback and its correlation with diaphragmatic functional parameters in young adults

背景:躯干压力生物反馈被认为是评估核心肌肉力量的一个可靠指标,其不仅能反映个体躯干力量状况,而且与呼吸肌功能有着密切关系。目的:探讨青年人躯干压力生物反馈与膈肌功能之间的相关性。方法:选择上饶师范学院80名大学生为研究对象,男34名,女46名,年龄(19.83±1.45)岁,采用床旁肌骨超声系统测量受试者膈肌厚度和移动度,便携式肺功能检测仪检测受试者最大吸气压,压力生物反馈仪测试受试者俯卧与仰卧位的腰部及腹部压力。采用Pearson或Spearman相关系数确定躯干压力生物反馈与膈肌功能之间的相关程度,多元线性回归分析确定膈肌功能的预测模型。结果与结论:①以性别分组,男子组年龄、身高、体质量、躯干压力生物反馈数值、平静吸气末膈肌厚度、平静呼气末膈肌厚度、平静呼吸膈肌增厚率、深吸气末膈肌厚度、深呼气末膈肌厚度、深吸气膈肌移动度、最大吸气压均大于女子组(P均<0.05);②以体力活动水平分组,久坐组躯干压力生物反馈数值及最大吸气压均低于运动组(P均<0.05);③相关性分析显示,躯干压力生物反馈(俯卧)、躯干压力生物反馈(仰卧)与平静吸气末膈肌厚度、平静呼气末膈肌厚度、平静呼吸膈肌增厚率、深吸气末膈肌厚度、深呼气末膈肌厚度、深呼吸膈肌增厚率、深吸气膈肌移动度、最大吸气压均具有显著性相关关系(P均<0.01);④多元线性回归分析显示,躯干压力生物反馈(俯卧)进入平静吸气末膈肌厚度的预测模型(F=27.228,P<0.001),躯干压力生物反馈(俯卧)进入深吸气末膈肌厚度的预测模型(F=38.615,P<0.001),躯干压力生物反馈(仰卧)、年龄进入深吸气膈肌移动度的预测模型(F=15.408,P<0.001),躯干压力生物反馈(俯卧)、体质量、年龄进入最大吸气压的预测模型(F=22.314,P<0.001);⑤结果显示,躯干压力生物反馈与膈肌厚度、膈肌移动度和最大吸气压的相关性较强,快速简便的躯干压力生物反馈测量可以作为筛查健康青年人膈肌功能的一种方法。

BACKGROUND:Trunk pressure biofeedback is considered a reliable indicator for assessing core muscle strength.It not only reflects the status of an individual’s trunk strength but also has a close relationship with the function of respiratory muscles.OBJECTIVE:To explore the correlation between trunk pressure biofeedback and diaphragmatic function in young adults.METHODS:A total of 80 young adults from Shangrao Normal University,China were enrolled,including 34 males and 46 females,with an average age of(19.83±1.45)years.Diaphragmatic thickness and mobility were measured using a bedside musculoskeletal ultrasound system.Maximum inspiratory pressure was determined using a portable pulmonary function tester.Lumbar and abdominal pressures in prone and supine positions were assessed using a pressure biofeedback device.The degree of correlation between trunk pressure biofeedback and diaphragmatic function was determined using Pearson or Spearman correlation coefficients.A multivariate linear regression analysis was used to determine predictive models for diaphragmatic function.RESULTS AND CONCLUSION:Grouped by sex,age,height,body mass,trunk pressure biofeedback values,diaphragm thickness during quiet inspiration and expiration,diaphragmatic thickening ratio during quiet breathing,diaphragmatic thickness during deep inspiration and expiration,diaphragmatic thickening ratio during deep breathing,diaphragmatic mobility during deep inspiration,and maximum inspiratory pressure were higher in the male group than the female group(all P<0.05).Grouped by physical activity level,trunk pressure biofeedback values and maximum inspiratory pressure were lower in the sedentary group than in the exercise group(both P<0.05).Both anterior and posterior trunk pressure biofeedback were significantly correlated with diaphragmatic thickness during quiet inspiration and expiration,diaphragmatic thickening ratio during quiet breathing,diaphragmatic thickness during deep inspiration and expiration,diaphragmatic thickening ratio during deep breathing,diaphragmatic mobility during deep inspiration,and maximum inspiratory pressure(all P<0.01).Anterior trunk pressure biofeedback entered the predictive model for diaphragmatic thickness during quiet inspiration(F=27.228,P<0.001),during deep inspiration(F=38.615,P<0.001),and along with age for diaphragmatic mobility during deep inspiration(F=15.408,P<0.001).Anterior trunk pressure biofeedback,body mass,and age entered the predictive model for maximum inspiratory pressure(F=22.314,P<0.001).To conclude,there is a strong correlation between trunk pressure biofeedback and diaphragmatic thickness,diaphragmatic mobility,and maximum inspiratory pressure.The rapid and simple measurement of trunk pressure biofeedback can serve as a method for screening the diaphragmatic function in healthy young adults.