Saunders Respiratory Practice

Aging significantly affects respiratory function, primarily leading to decreased lung elasticity and reduced muscle strength. As individuals age, the connective tissue in the lungs becomes stiffer, impacting the ability of the lungs to expand and contract efficiently. This decline in lung elasticity can hinder the overall ventilation process, making it more challenging to take deep breaths and effectively expel air during exhalation.

Additionally, muscle strength, particularly in the respiratory muscles such as the diaphragm and intercostal muscles, tends to diminish with age. This reduction can result in lower tidal volumes and an increased work of breathing, further compromising respiratory efficiency. As a consequence, older adults may be more susceptible to respiratory conditions and may demonstrate a decreased overall capacity for physical exertion and reduced endurance during activities that require increased respiratory effort.

In contrast, options that suggest an improvement in lung elasticity, no effect on respiratory strength, or enhanced gas exchange efficiency do not accurately reflect the physiological changes associated with aging. These other responses do not consider the comprehensive impacts that aging has on both lung structure and function.