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Tactile fremitus
Little is known about how chest wall vibration is applied and its effects on respiratory
systems. Tactile fremitus, commonly known as the vibration of the chest wall, is a common
clinical assessment that is usually part of routine physical examination of a patient's lungs. In
individuals with healthy lung tissue, chest vibration can be felt from both sides of the chest
(Hernandez, 2022). It usually results from sound vibration, which is created by vocal sound or
speech. Airflow from the lungs causes vocal cords to vibrate, causing the vocal fremitus to be
transmitted down to the tracheobronchial tree through the lungs tissues to chest walls which is
commonly felt by hand as palpable vibration (Mase et al.,2018). Normally, the chest wall
vibration is more pronounced between shoulder blades and near the clavicles and with
decreasing intensity towards the lung bases. The asymmetrical or abrupt change in chest wall
vibration intensity is considered unusual, reflecting underlying lung condition. There is a
common relationship between Chest wall vibration with chest wall circumference, intrapleural
pressure, chest wall forces, and expiratory flow rate.
Studies have been done to describe the mechanical consequences of vibration of the chest
wall and its effects on intrapleural pressure, chest wall circumference e, forces, and expiratory
rate. Spirometry, respiratory inductive plethysmography, respiratory magnetometer,
optoelectronic plethysmography are commonly used as the standard method for measuring and
assessing pulmonary functions, although some are very expensive (McCarren et al., 2016). These
techniques are based on motion capturing systems which commonly analyze the three-
dimensional movement on the thoracoabdominal surface during respiratory. Although they are
complex, they require highly-trained technicians.
Tactile fremitus
Little is known about how chest wall vibration is applied and its effects on respiratory
systems. Tactile fremitus, commonly known as the vibration of the chest wall, is a common
clinical assessment that is usually part of routine physical examination of a patient's lungs. In
individuals with healthy lung tissue, chest vibration can be felt from both sides of the chest
(Hernandez, 2022). It usually results from sound vibration, which is created by vocal sound or
speech. Airflow from the lungs causes vocal cords to vibrate, causing the vocal fremitus to be
transmitted down to the tracheobronchial tree through the lungs tissues to chest walls which is
commonly felt by hand as palpable vibration (Mase et al.,2018). Normally, the chest wall
vibration is more pronounced between shoulder blades and near the clavicles and with
decreasing intensity towards the lung bases. The asymmetrical or abrupt change in chest wall
vibration intensity is considered unusual, reflecting underlying lung condition. There is a
common relationship between Chest wall vibration with chest wall circumference, intrapleural
pressure, chest wall forces, and expiratory flow rate.
Studies have been done to describe the mechanical consequences of vibration of the chest
wall and its effects on intrapleural pressure, chest wall circumference e, forces, and expiratory
rate. Spirometry, respiratory inductive plethysmography, respiratory magnetometer,
optoelectronic plethysmography are commonly used as the standard method for measuring and
assessing pulmonary functions, although some are very expensive (McCarren et al., 2016). These
techniques are based on motion capturing systems which commonly analyze the three-
dimensional movement on the thoracoabdominal surface during respiratory. Although they are
complex, they require highly-trained technicians.
