The below graph shows both ventilation and blood lactate concentration as a function of total oxygen consumption during a bout of exercise. Explain the relationship between these two variables and why these two measures (ventilatory threshold and lactate threshold) tend to occur around the same level of exercise intensity.

Q: Please explain the difference between the oxygen dissociation curve created by myoglobin…

A: Blood is essential in the transport of oxygen throughout the body. Oxygen is carried in the blood by…

Q: Compare heart rate and blood pressure responses to arm and leg work at the same oxygen uptake. What…

A: Heart rate or heart pulse is the speed of the heartbeat measured by the number of poundings of the…

Q: Volume (L) B 6 5 4 3 FEF 25-75% FEV₁ FVC

A: FEV1/FVC ratio:The FEV1/FVC ratio is a measure of how well your lungs can empty air. It is…

Q: List the Thermal changes during exercise?

A: Exercise is any physical activity that improves or maintains physical condition and overall health…

Q: Discuss the control of ventilation during exercise.

A: The process of breathing is controlled by the nervous system which either increases or decreases the…

Q: Define the term maximal oxygen consumption?

A: Maximal oxygen consumption is used as an indicator of fitness and aerobic endurance. It was defined…

Q: Debra weighs 154 lbs and completes a maximal GXT. It was determined she has a maximal MET capacity…

A: MET: described as the ratio of the metabolic charge (power consumed) in the course of…

Q: Define maximal oxygen uptake. Why might relative V ̇O2 max be the single most important factor in…

A: VO2 or Maximal oxygen uptake can be described as the total amount of oxygen consumption or aerobic…

Q: Briefly explain why the VO2 of a keto-adapted endurance athlete would be higher at the same…

A: VO₂ max is the maximum rate of oxygen consumption that is attained during physical exertion. VO2 max…

Q: The resting O2 saturation for the subject was 98%, and it was still 98% during exercise. What…

A: Values below 95 % can indicate a health disorder and make it necessary to supply the patient with…

Q: What is considered a significant change in preshift to postshift, or prebronchodilator to post…

A: A significant change in spirometric results from preshift to postshift, or from prebronchodilator to…

Q: apparently healthy individuals (e.g., no COPD), between ventilation (Ve) and cardiac output (Q), it…

A: The muscles of the body store ATP to perform various physical activities. During intense physical…

Q: A forearm skeletal muscle has a hemoglobin concentration of 92 microM. An arterial occlusion of the…

A: Oxygen has a higher affinity to bind to the allosteric conjugated protein called hemoglobin in the…

Q: Define maximal oxygen uptake. Why might relative V˙O2 max be the single most important factor in…

A: Physical fitness is equally important as mental fitness. To ensure that a person is physically fit…

Q: HbR is reported to have P50=14torr and a Hillcoefficient=1.2. Calculate AYO2 for a climber with HbR…

A: In the present scenario HbR =P50P50=14torrHill coefficient=1.2Thus we can calculate:…

Q: Messner and Habeler's 1978 ascent of Mount Everest without oxygen-breathing apparatus is often…

A: The atmosphere in high altitudes has thinner air and colder temperature when compared to the…

Q: How does bohr effect helps during exercise?

A: It is the phenomenon in which increase of carbon dioxide in the blood and a decrease in pH results…

Q: What does GAS stand for and explain this training concept?

A: GAS stands for General Adaptation Syndrome. GAS is a concept based framework first discovered by a…

Q: Using the data provided in the table, the estimated p50 for myoglobin is mmHg and the fraction…

A: Myoglobin  (Mb) is an iron and oxygen binding protein that is present usually in the cardiac and…

Q: Under certain circumstances, the respiratory quotient (RQ value ) for an athlete exercising…

A: The ratio of the volume of produced carbon dioxide to the volume of consumed oxygen in respiration…

Q: During resistance exercise, three factors support muscle hypertrophy they include the following with…

A: Resistance exercises involve training to improve muscle strength by making muscles work against an…

Q: Responses of the Pulmonary System to Acute Exercise during Short-Term, Light to Moderate Submaximal…

A: Exercise can also boost cardiovascular health by strengthening the heart and increasing the…

Q: Briefly explain how two metabolic products or byproducts affect oxygen delivery (make reference to…

A: Oxygen dissociation curve is a sigmoidal shaped curve that describes the binding affinity of oxygen…

Q: Explain the clinical significance of a right or left shift of the oxyhemoglobin dissociation curve…

A: Oxygen is attached to the hemoglobin molecule present in the red blood cells. It is transported to…

Q: Oxygen uptake (Fick Equation) is determined by two variables. What are they and what do they…

A: In the context of determining oxygen uptake, the Fick Equation involves two variables that play a…

Q: Discuss and conclude the results given for the effects of exercise on breathing and heart rate.

A: The effects of exercise on breathing and heart rate in more detail:Breathing: During exercise, our…

Q: Based    on    the    plot    you’ve    constructed: 1. What    relationship    did    you    find…

A: Lungs are a pair of respiratory organs situated in the thoracic cavity. The main function of lungs…

Q: Consider the graph below showing the effect of altitude on ventilation rate in 25 healthy,…

A: The presented graph illustrates the impact of altitude on ventilation rate in 25 healthy,…

Q: When we change altitude, during the next few days, the body responds by adjusting Hb cooperativity.…

A: 2,3-BPG (bisphosphoglycerate) is present in the RBCs of human beings and in other various species.…

Q: After light exercise, the oxygen consumed in recovery is approximately equal to the oxygen deficit,…

A: Oxygen deficit can be referred to as the total of the little differences that are measured between…

Q: Describe how the diaphragm is used in sport in both concentric and eccentric actions. Focus on the…

A: Isotonic contractions generate force by changing the length of the muscle and can be concentric…

Q: Given the data in oxygen absorption, compute for the volume of O2 uptake (ml/min) and provide a…

A: Working on scientific challenges requires the power to assess data and derive meaningful conclusions…

Q: List three causes of excess postexercise oxygenconsumption.

A: EPOC or the excess post-exercise oxygen consumption refers to a physiological effect, in which the…

Q: You are thrown into a small dark room. The door clangs shut and you fear that there are no holes or…

A: Introduction :- Pressure is the physical quantity of force applied to a specific area. Pressure is…

Q: During maximal aerobic exercise, exercise-induced arterial hypoxemia may result in elite endurance…

A: Before proceeding with the question, we must know about exercise-induced arterial hypoxemia. It is…

Q: Is there an important difference between training at high altitude and taking EPO? Can EPO be safe…

A: Blood is a fluid connective tissue that is pushed by the heart into the blood vessels and runs…

Spheres of physical activity

The spheres of physical activity experience include aspects of everyday life where physical activity is important. In general, the spheres recognize various purposes of physical activity in different contexts. The spheres of physical activity provide a broad basis for assessing the significance and prevalence of physical activity. There are seven spheres of physical activity experience.