Homma I, Eklund G, Hagbarth K E
Respir Physiol. 1978 Dec;35(3):335-48. doi: 10.1016/0034-5687(78)90007-5.
Vibration-induced effects on respiration in man were studied by recording the electrical activity (EMG) from the intercostal muscles and the diaphragm. The vibration was applied in an upper thoracic region where inspiratory muscle activity prevailed or in a lower thoracic region where expiratory muscle activity prevailed. The effects were also studied by recording the movements of the thorax and the respiratory air flow. Sustained vibration in the upper region enhanced the activity of the underlying inspiratory muscles and caused an expansion of the rib cage whereas it had little or weak effects on diaphragm-activity or on expiratory intercostal muscles. Sustained vibration in the lower region enhanced the activity of the underlying expiratory muscles, often inhibited the inspiratory activity and caused a depression of the rib cage. It also tended to inhibit the diaphragm activity. It was also found that bilateral vibration, timed by the respiratory movements and alternating between upper and lower regions could aid or counteract the ventilation if it was applied respectively 'in phase' or 'out of phase' with the rhythmical contractions in the underlying muscles. The motor responses described are largely explicable in terms of tonic vibration reflexes (TVR) arising in the inspiratory and expiratory intercostal muscles underlying the vibrators.
通过记录肋间肌和膈肌的电活动（肌电图），研究了振动对人体呼吸的影响。振动施加于吸气肌活动占主导的上胸部区域或呼气肌活动占主导的下胸部区域。还通过记录胸部运动和呼吸气流来研究其影响。上胸部区域的持续振动增强了下方吸气肌的活动，并导致胸廓扩张，而对膈肌活动或呼气肋间肌的影响很小或较弱。下胸部区域的持续振动增强了下方呼气肌的活动，常抑制吸气活动并导致胸廓下陷。它还倾向于抑制膈肌活动。还发现，由呼吸运动定时并在上、下区域之间交替的双侧振动，如果与下方肌肉的节律性收缩分别“同相”或“异相”施加，则可以辅助或抵消通气。所描述的运动反应在很大程度上可以用振动器下方的吸气和呼气肋间肌产生的紧张性振动反射（TVR）来解释。
