• Exercise increases the?frequency and depth of breathing
• This can be investigated by?counting the breaths taken during one minute at rest?and?measuring average chest expansion over 5 breaths?using a tape measure held around the chest
• Exercise for a set time (at least 3 minutes)
• Immediately after exercising,?count the breaths taken in one minute and measure the average chest expansion over 5 breaths
• Following exercise, the?number of breaths per minute will have increased?and the?chest expansion will also have increased

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