0
Exercise
Exercise is fundamental to healthy living. Ask questions here about types of exercise and developing exercise habits in your life.
26,397 Questions
What is the composition percentage in blood?
Blood is composed of approximately 55% plasma and 45% formed elements, which include red blood cells, white blood cells, and platelets. Plasma consists mainly of water (about 90%) and proteins such as albumin, globulins, and fibrinogen.
How do human muscle cells get oxygen?
The process in muscles which uses oxygen is called respiration. Muscles, like all aerobic living cells, require oxygen for aerobic respiration, which is the process by which cells convert food into energy. So when muscles contract, they are using oxygen. When muscles do not get sufficient oxygen for contraction, problems arise. The muscle cells must use anaerobic repiration which is respiration without oxygen. They cannot do this for very long though as the byproduct of anaerobic respiration is lactic acid which causes a fall in pH.
What causes oil pressure to increase and decrease?
The oil pump pushes oil through passages that end up in bearings and other components. The pressurized oil leaks out past small openings around the bearings, and as the bearings wear out the openings become larger.
When the oil is cold it is thicker and when the oil is warm it becomes less "viscous", yet the oil pump continues to pump the same volume of oil. Thicker oil leaks past the openings around the bearings a little more slowly.
When the engine is running faster the oil pump is also turning faster, and moving more oil through the passages. Yet the oil still leaks past the bearings at the same rate.
In other words, if your engine is getting worn, change the oil to a higher viscosity (higher numbers, ie, If you're currently using 5W15, change to 10W30 or even 15W50 if necessary).
If your engine isn't quite as new as it once was, changing to a heavier (higher viscosity) oil can give you a LOT more miles.
When do you do aerobic vs anaerobic?
The truth is that there is never only aerobic or anaerobic situation in our body.
We train/get active using percentages of aerobic and anaerobic energy systems.(e.g 80% to 20%)
A lot of sports use more the aerobic energy production like 3000m running in track and fields, walking, swimming 1500 m etc
Some other sports/activities use more anaerobic like olympic weight lifting, shot-put, 100m running.
And some sports start anaerobic and continue with aerobic like boxing.
On the other hand, in one sport an experienced athlete may use aerobic energy and one begginer use anaerobic more (due to loss of techique).
In Fitness industry, most of the women like aerobic exercises and they believe they loose fat or control their weight better than every other kind of exercise especially the anaerobic (weight training).
During aerobic activity your metabolism burns calories for energy but that's all.
During anaerobic activity your metabolism burns also calories (not so many from fat) but the results keep the metabolism in high level so: you burn more calories during all the remain day and the following days (and that is because your muscles get stronger or more massive and so the body burns more calories to keep them in working condition)
I hope to answer your question for a better life.
Thanks
Strict aerobes are organisms that require oxygen for energy production through aerobic respiration. They cannot survive in environments with low oxygen levels or without oxygen. These organisms rely on oxygen as the final electron acceptor in their metabolic pathways.
An anaerobe is an organism that grows without air. The organism can only live in oxygen-free conditions. If oxygen is present, the organism could die.
years old 26-35
years old 36-45
years old 46-55
years old 56-65
years old 65+
years old excellent 56 52 45 40 37 32 good 47-56 45-52 38-45 34-40 32-37 28-32 above average 42-46 39-44 34-37 31-33 28-31 25-27 average 38-41 35-38 31-33 28-30 25-27 22-24 below average 33-37 31-34 27-30 25-27 22-24 19-22 poor 28-32 26-30 22-26 20-24 18-21 17-18 very poor <28 <26 <22 <20 <18 <17
source: these norms have been derived from several and now unknown sources
What is the difference between vo2 max and pvo2 max?
VO2 max refers to the maximum rate of oxygen consumption during intense exercise, indicating cardiovascular fitness. PVO2 max, on the other hand, stands for peak oxygen uptake and usually refers to the highest oxygen consumption a person can achieve, typically during a specific test or activity. Both measures assess aerobic capacity.
Which body system is primarily responsible for removing waste products?
The excretory system.
The main components are the kidneys liver and large intestine
How do you get rid of bubbles in a humidifier?
To get rid of bubbles in a humidifier, try the following steps: 1. Ensure the water reservoir is filled properly and not overfilled. 2. Clean the humidifier according to the manufacturer's instructions to remove any buildup or debris that may be causing the bubbles. 3. Use distilled water instead of tap water to prevent mineral deposits that can create bubbles.
Nutrient that needs to be absorbed before exercise?
Carbohydrates provide glucose, the body's main source of energy, which needs to be absorbed before exercise to fuel muscles and optimize performance.
When you lift one foot when standing on a scale does your weight change?
No, lifting one foot while standing on a scale does not change your weight. The scale measures the force exerted downward on it, regardless of how many feet are on it.
What are the long-term effects of exercise on the musculoskeletal system?
Long-term exercise can lead to increased muscle mass, strength, and endurance. It also helps maintain bone density, improve joint flexibility, and reduce the risk of osteoporosis and arthritis. Regular physical activity can contribute to overall musculoskeletal health and function as we age.
Hisimo metal does any body know this material what is the composition?
Hastelloy metal alloys are nickel-based materials known for their high corrosion resistance and excellent mechanical properties. The composition typically includes nickel, chromium, molybdenum, and other elements such as iron and cobalt. These alloys are commonly used in chemical processing, aerospace, and marine applications due to their exceptional performance in harsh environments.
Why are you doing the same amount of work lifting a box or pushing it up a long ramp?
When lifting a box, you're increasing its potential energy by raising it against gravity, whereas when pushing it up a ramp, you're exerting force over a longer distance, which compensates for the reduced force required. Ultimately, the work done in both cases is equal because the change in potential energy is equal to the force multiplied by the distance moved in the direction of the force.
Why cells switch from aerobic to anaerobic during a race?
thise is because during exercise your body demands oxygen (obviously) and your energy systems will not " switch over" beause all energy systems are actually being used however during a race eg. marathon , your body will go through high and lows so your aerobic energy system will start off as the main provider than as you relax and get in to the race your anerobic system will kick in however when this fatigues you will begin to speed up because your aerobic system starts up again . try looking at energy systems ATP-PCR / LACTIC ACID SYSTEM and creatine phosphate.
Why does your sweat cause your face to burn when you exercise?
When you exercise, your body temperature rises and you sweat to cool down. The salt in your sweat can irritate your skin, especially in the sensitive areas of your face, causing a burning sensation. Additionally, sweat can mix with oils and bacteria on your skin, leading to further irritation and discomfort.
The volume of blood pumped during each cardiac cycle is called what?
The volume of blood pumped during each cardiac cycle is known as stroke volume. It represents the amount of blood ejected by the left ventricle in one contraction. It is an important factor in determining cardiac output.
How does regular exercise affect your nervous system?
Exercise helps to open up the receptors in the nervous system. The body will perform better when these receptors are open.
Practising yoga on a daily basis offers more flexibility, balance and strength. Also it aids to enhance your mental clarity and sense of easiness. The varied poses, breathing exercises and relaxation methods associated with yoga help to strengthen your nervous system, thus bringing equilibrium and serving you live more a more happy and joyous life. Understanding the functioning of the nervous system - The central nervous system is divided into two parts: parasympathetic and sympathetic nervous system. The parasympathetic nervous system supports your autonomic functions like metabolic rates, breathing and so on. The sympathetic system is accountable for your fight, which you function in on a daily basis owing to the commotion surrounding you. As majority of the people function in the sympathetic nervous system, reflect answering emails at any time, being annoyed by ever-changing descriptions on social media, and handling daily stress, your body tends to produce high amounts of the hormone cortisol. This hormone can in fact begin to wreak chaos on your brains by dampening your reflexes, your aptitude to focus and your reminiscence, hence affecting your entire life. The plan is to reinstate balance and decrease cortisol levels by deliberately activating the parasympathetic nervous system. A strong central nervous system is a balanced one. Yoga can efficiently decrease the body's stress response by lessening the production of cortisol, which takes place when the sympathetic nervous system is hackneyed The training efficiently does this by rising the harmonization between your body and mind via the varied asanas, breathing exercises and a numerous relaxation methods. Yoga and nervous system - Mindful execution and conscious breathing of yoga poses help to strengthen nerve transmissions from your body to your brain, reducing your stress and muscular tension. Restorative yoga poses trigger the parasympathetic nervous system, eliminating anxiety, fear and anger out of your minds forever. The most effectual mixture for strengthening the nervous system is to practice yoga more vigorously and then practice relaxing poses and breathing techniques, rather than just doing restorative yoga poses only.
reference : ThinkNaturalToday
Why is there less carbon dioxide breathed out when exercising?
During exercise, your body produces more carbon dioxide as a result of increased metabolism. However, the increased breathing rate during exercise allows for more efficient removal of carbon dioxide from the body, preventing an accumulation of CO2 in the bloodstream. This helps maintain the balance of carbon dioxide levels in the body despite the increased production during exercise.
How can you increase strength of solenoid?
You can increase the strength of a solenoid by increasing the number of turns in the coil, increasing the current flowing through the coil, using a core material with higher magnetic permeability, and optimizing the design for maximum magnetic flux density.
What is the antagonist in shoulder extension?
The adductor longus is a prime adductor and medial rotator of the femur. It is also an assistant mover for flexion at the hip.
Therefore the antagonist muscles are the abductors (apposing adduction), the lateral rotators (apposing medial rotation) and the extensors (apposing flexion).
Primary Abductors: Gluteus Medius and Gluteus Minimus
Assistant Abductors: Tensor Fasciae Latter, Sartorius
Primary Lateral Rotators: Glutteus Maximus, Deep Later Rotator group
Assistant Lateral Rotators: Sartorius, Iliopsoas
Primary Extensors: Hamstrings, Gluteus Maximus
Assistant Extensors: Adductor Magnus (upper fibres)
Is wrestling a aerobic or anerobic exercise?
wrestling is a mostly anaerobic sport involving constant work with short bursts of near maximal intensity over a 6 minute match. although the aerobic systems plays a small part in a wrestling match, wrestlers must have good anaerobic strength andendurance (very different from aerobic endurance) to be successful
How can a train float in the air?
It is possible because a Chinese train MAGLEV floats above a magnet. How does it do it : it takes a bunch of safety precautions but they made it North and North so the magnets repel each other. For more information email me at Trainboybertron@outlook.com
