Download the app HeartRateFree (or something similar) on one phone per group Eff

Question

Download the app HeartRateFree (or something similar) on one phone per group Effect of exercise on heart rate 1. Have one group member sit quietly for a few minutes, then determine their resting heart rate (record below) 2. weight 3. Instruct the volunteer to exercise for 60 seconds-this could be body up the stairs outside of the lab, or riding the bike in the lab. Determine immediately following this (record below) 4. Allow the participant to recover for a few minutes. 5. Gather a ar ar ohe resting heart rate after having the participant lie down flat (on lab banch across multiple stools) for 1 minute (record below). 6. Instruct the partcopant to rapidly stand up and measure heart rate immediately upon standing (record below). Heart rate Resting After 60 seconds of exercise Resting (lat) Immediately upon standing 8o Questions Describe the effect of exercise on heart rate. What physiological mechanism causes this change? 1. 2. Describe the effect of changing position on hear rate. Describe how the baroreceptor reflex accounts for this change.

Explanation / Answer

Ans-

During time of exercise obviously heart rate is increased but why-

It is because , during time of exercise energy requirement is increased So sufficient oxygen and nutrients are required for muscles to function. That is why , heart rate increase to supply sufficient oxygen and nutrient to the muscles.

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