Mindy wants to lose weight and the fact that her parents engage in regular exercise is a predisposing factor.
When losing weight, additional physical activity will increase the amount of calories your body uses for energy or “burns off.” The burning of calories through physical activity, combined with reducing the amount of calories you eat, creates a “calorie deficit” that ends up in weight loss.
The ACSM recommends a minimum of half-hour of moderate-intensity exercise, five days per week. a pair of If you are simply beginning out, you'll be able to begin with less frequency. The secret is consistency—even if that involves twenty minutes on three days per week. In short, some exercise is healthier than no exercise.
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Answer:
a. QRS
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.
The QRS complex represents the time necessary for the impulse to travel through the bundle of His, the bundle branches, and the Purkinje fibers to complete ventricular activation or contraction, known as ventricular depolarization. QRS is simply a combination of the Q-wave, R-wave and the S-wave which represents electrical impulses.
