Which of the following are true about ECG machines?
They use electrodes.
They are used to assist doctors in the diagnosis of possible heart problems.
They use magnets to produce images of soft tissues.
They are never used while a patient isexercising.
An electrocardiogram (ECG or EKG) <u>records the electrical signal from your heart to check for different heart conditions.</u> <u>Electrodes are placed on your chest to record your heart's electrical signals</u>, which cause your heart to beat. The signals are shown as waves on an attached computer monitor or printer.
Answer:
I believe that is true :)
False. Adolescents need the same amount of physical activity that adults do. The only thing that varies is the beneficial effects that exercise brings and the overall physical effect it has to the body. Adolescents still have a fast metabolism which enables them to maintain their shape despite the amount of caloric intakes they've had while adults don't. Exercise duration should at least last for 30 minutes to induce physical fitness in the body and this works for young adults and mature adults alike.
I believe that it is physical dependence