Cardiovascular, Respiratory And Energy System

The nose protects the lower airways by filtering, moistening, and heating the inhaled air. However, breathing through the nose alone cannot cover the oxygen demand, when elite athletes exercise, as ventilation through the nose cannot exceed 30 L/min. Therefore, when ventilation exceeds this level through the nose, concomitant ventilation through the mouth automatically appears. The combined breathing can be harmful to the lower airways because they are now exposed to air with allergens, other small particles, and unheated air (M&M).

1. Explain the change in ERV with exercise. the ERV decrease with exercise asssuming that the volume of air was exhaled more than being enhaled at the time. 2. Explain the change in IRV with exercise. IRV decreased as well because the amount of air that was supposed to be inhale was very little inhalation during the time of exercising. 3. Explain the change in IC with exercise. IC increase with exercise beacause the subjects were able to allow their lungs to breath. 4. Explain the change in FRC with exercise. The FRC decrease just a little with exercise. 5. Explain why RV does not change with exercise. the ERV decrease with exercise asssuming that the volume of air was exhaled more than being enhaled at the time. 6. Explain why VC does not change with exercise. the vital capacity remain the same because it accumulated the tidal

#1. What is responsible for raising Jim's heart and respiratory rate and stimulating sweat just before the race?

You may list, as students report out, the physiological changes to the respiratory, cardiovascular, neuromuscular, and urinary systems expected during strenuous exercise and as noted in the case of the cyclist, Joe. Students will respond with answers suggesting increases in heart rate, respiration, sweating and muscle fatigue, as well as muscle soreness as normal. However, in

Exercise increases the use of energy by your muscles, which activates a series of reactions to create new energy to keep exercising and maintain homeostasis. The first reaction that occurs is an increase in your breathing rate. Energy creation requires significant oxygen. The only way to provide the necessary oxygen is to increase the speed at which your respiratory system is introducing it into your bloodstream. The harder you exercise, the more energy is used, resulting in your body increasing your breathing rate even more to maintain adequate energy levels for balance.

I am going to explain the physiology of the respiratory and cardiovascular system in relation to the energy metabolism in the body.

Heart rate quickens – more blood (oxygen and nutrients) is needed for running or fighting without stopping.

P6- follows guidelines to interpret collected data for heart rate, breathing rate and temperature before and after a standard period of exercise

What limits the speed and stamina of most endurance athletes is the ability of their heart and lungs to deliver oxygen at a steady rate

Also he’s oxygen diffusion rate has increased due to the more oxygen which is absorbed by the alveoli and then circulated around the body.

The fourth, and most significant, response to training that a touch football player would experience is a change in their oxygen uptake. Maximal oxygen uptake, or max VO2, is considered by professionals to be the best guide for cardiorespiratory

The purpose of this lab was to understand how mammalian pulmonary and circulatory systems increase the delivery of oxygen to cells during exercise. The systems were examined by measuring pulse, vital capacity, ventilation rate, and the blood pressure at rest and immediately following short exercise. From these observations we measured the height, weight, body mass index (BMI) and smoking status in order to determine what may affect exercise (Barrilleaux, 2014).

Ruth (30’s) and James (50’s) plan on running the Great North Run, their different training regiments giving different physiological states during the run. I will explore how each runner’s training will affect these physiological states and what implications these states will have on the runner.

As the intensity of exercise increased, so did the rates of the heart and breathing. After a small period of rest, the heart rate and breathing rate both decreased to a point close to their resting rate. This proved the stated hypothesis. First, the hearts average resting rate was recorded to be 76 bpm. The heart is therefore transporting oxygen and removing carbon dioxide at a reasonably steady rate via the blood. During the low intensity exercise (Slow 20) the heart rate increases to 107 bpm, which further increases to 130bpm at a higher intensity level (Fast 20). The heart therefore needs to beat faster to increase the speed at which oxygen is carried to the cells and the rate at which carbon dioxide is taken away by the blood.

I predict that during exercise the heart and respiratory rate (RR) will increase depending on the intensity of exercise and the resting rates will be restored soon after exercise has stopped. I believe that the changes are caused by the increased need for oxygen and energy in muscles as they have to contract faster during exercise. When the exercise is finished the heart and ventilation rates will gradually decrease back to the resting rates as the muscles’ need for oxygen and energy will be smaller than during exercise.