The presence of an incompetent tricuspid valve would have the direct effect of causing .

Shortage of amount and efficiency of blood transported to the lungs

Explanation:

the tricuspid valve of the heart also known as right atrioventricular valve is located between the right atrium and right ventricle to prevent regurgitation of blood during systole. Incompetent transcupid valve will allow regurgitation thereby reducing the amount and efficiency of the blood reaching the lungs

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.