Rodríguez-Núñez Iván, Navarro Ximena, Gatica Darwin, Manterola Carlos
Laboratorio de Biología del Ejercicio (LBE), Escuela de Kinesiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile.
Programa de Magíster en Kinesiología Cardiorrespiratoria, Escuela de Kinesiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile.
Arch Argent Pediatr. 2016 Oct 1;114(5):434-40. doi: 10.5546/aap.2016.eng.434.
Respiratory muscle training is the most commonly used method to revert respiratory muscle weakness; however, the effect of protocols based on non-respiratory maneuvers has not been adequately studied in the pediatric population. The objective of this study was to establish the effect of abdominal muscle training on respiratory muscle strength and forced expiratory flows in healthy adolescents.
This was a quasi-experiment. The sample was made up of healthy adolescents divided into two groups: an experimental group who completed eight weeks of active abdominal muscle training, and an equivalent control group. The following indicators were measured: abdominal muscle strength, maximal inspiratory pressure, maximal expiratory pressure (MEP), peak expiratory flow, and peak cough flow, before and after protocol completion. A value of p < 0.05 was considered significant.
All studied outcome measures increased significantly in the experimental group but only MEP increased in the control group. In addition, a higher MEP was observed in the experimental group compared to the control group at the end of the protocol, together with a greater increase in MEP and peak expiratory flow. Finally, the increase in MEP was associated with an increase in cough peak flow in the experimental group but not in the control group.
After eight weeks of abdominal muscle training, MEP and peak expiratory flow increased in healthy (sedentary) adolescents. Such effects were associated with intervention-induced increases in cough peak flow.
呼吸肌训练是恢复呼吸肌无力最常用的方法；然而，基于非呼吸动作的训练方案在儿科人群中的效果尚未得到充分研究。本研究的目的是确定腹肌训练对健康青少年呼吸肌力量和用力呼气流量的影响。
这是一项准实验。样本由健康青少年组成，分为两组：实验组完成八周的主动腹肌训练，以及一个同等的对照组。在训练方案完成前后测量以下指标：腹肌力量、最大吸气压力、最大呼气压力（MEP）、呼气峰值流量和咳嗽峰值流量。p值<0.05被认为具有显著性。
实验组所有研究的结果指标均显著增加，而对照组仅MEP增加。此外，在训练方案结束时，实验组的MEP高于对照组，同时MEP和呼气峰值流量的增加幅度更大。最后，实验组MEP的增加与咳嗽峰值流量的增加相关，而对照组则不然。
经过八周的腹肌训练，健康（久坐不动）青少年的MEP和呼气峰值流量增加。这些效果与干预引起的咳嗽峰值流量增加有关。
