The physical changes with respect to increased lung capacity allows children in their middle childhood to engage themselves in longer, sustained periods of strenuous play.
The proportion of air that can be contained in the lungs of a human being with the maximum pressure of inspiratory process, is known as the lung capacity of a human being.
As children reach the middle of their childhood, their torsos grow in length, which increases their muscles and lung capacity. Due to this, it becomes easier for middle-aged children to play and sustain for longer periods of time.
Hence, the significance of increased lung capacity in middle-aged children is aforementioned.
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