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Exercise

Exercise is fundamental to healthy living. Ask questions here about types of exercise and developing exercise habits in your life.

26,397 Questions

How much weight can you lose by playing basketball for one hour?

There's really no telling, it's all down to what you're eating and how hard you're working out.

With the high-calorie foodstuffs we have available today, every attempt at weight loss pretty much has to start by controlling your intake.

For most of us, it's just not possible to exercise hard enough to compensate for a really poor diet. One single cupcake outside your allowance will take something like 45 minutes of hard workout to use up.

But staying with a program of a controlled diet and exercise, it's possible to lose 1-3 pounds/week w/o any health concerns.

Abdominal curls help the body to?

It helps the body to build strength in the core of the body which is the abs (bellow your chest). Add dumbells to your hands to increase the intensity of the workout.

What was the bum blockade?

They were checkpoints created on main highways (during the great depression) that tried to stop migrant workers from moving into their state.

Walter camp's daily dozen exercises?

These are exercises devised to keep people fit.

What is the sliding filament model of contraction?

The sliding filament theory is the basic summary of the process of skeletal muscle contraction. Myosin moves along the filament by repeating a binding and releasing sequence that causes the thick filament to move over the thinner filament. This progresses in sequential stages. By progressing through this sequence the filaments slide and the skeletal muscles contract and release.

First Stage:
The first stage is when the impulse gets to the unit. The impulse travels along the axon and enters the muscle through the neuromuscular junction. This causes full two to regulate and calcium channels in the axon membrane to then open. Calcium ions come from extra cellular fluid and move into the axon terminal causing synaptic vessels to fuse with pre synaptic membranes. This causes the release of acetylcholine (a substance that works as a transmitter) within the synaptic cleft. As acetylcholine is released it defuses across the gap and attaches itself to the receptors along the sarcolemma and spreads along the muscle fiber.

Second Stage:
The second stage is for the impulse spreads along the sarcolemma. The action potential spreads quickly along the sarcolemma once it has been generated. This action continues to move deep inside the muscle fiber down to the T tubules and the action potential triggers the release of calcium ions from the sarcoplasmic reticulum.

Third Stage:
During the third stage calcium is released from the sarcoplasmic reticulum and actin sites are activated. Calcium ions once released begin binding to Troponin. Tropomyosin blocking the binding of actin is what causes the chain of events that lead to muscle contraction. As calcium ions bind to the Troponin it changes shape which removes the blocking action of Tropomyosin (thin strands of protein that are wrapped around the actin filaments). Actin active sites are then exposed and allow myosin heads to attach to the site.

Fourth Stage:
The fourth stage then begins in which myosin heads attach to actin and form cross bridges, ATP is also broken down during this stage. Myosin binds at this point to the exposed binding sites and through the sliding filament mechanism the muscles contract.

Fifth Stage:
During the fifth stage the myosin head pulls the Actin filament and ADP and inorganic Phosphate are released. ATP binding allows the myosin to detach and ATP hydrolysis occurs during this time. This recharges the myosin head and then the series starts over again.

Stage Six:
Cross bridges detach while new ATP molecules are attaching to the myosin head while the myosin head is in the low-energy configuration. Cross bridge detachment occurs while new ATP attaches itself to the myosin head. New ATP attaches itself to the myosin head during this process.

Stage Seven:
During stage seven the ATP is broken down and used as energy for the other areas including new cross bridge formation. Then the final stage (stage 8) begins and a drop in stimulus causes the calcium concentrate and this decreases the muscle relaxation.

Why does exercise have an insulin-like effect?

Exercise lowers blood sugar in a similar way to insulin, as the body uses the sugar in respiration, allowing the body to move, enabling its participation in exercise.

What is the total body plus workout in p90x?

9:30 min. - warm up and stretch

:50 sec. - o-crunch push-up

:35 sec. - pull up crunch

1:00 min. - dead lift curl press

1:00 min. - step kickback chair

1:00 min. - sumo chair

1:40 min. - chuck up x

:35 sec. - cling on run

1:00 min. - lunge press w/bella twist

1:00 min. - balance curls

1:00 min. - running man

:30 sec. - break

1:00 min. - hindu pike push up

1:00 min. - lunge/squat/lunge

1:00 min. - mr. moon

1:00 min. - kid play

2:00 min. - 3 & 3 (3 squats, 3 pushups, 3 pull ups, repeat)

1:00 min. - half dervish

1:00 min. - weighted warrior

2:00 min. - 1 & 1 (1 pushups, 1 pull up)

1:00 min. - lara lunge crunch

1:00 min. - spiderman jumps

1:00 min. - plyo push ups

4:30 min. - cool down and stretch

This is a circuit workout, so little to no rest between sets. Also, you should try to workout for the duration of each set as opposed to trying to reach a certain amount of reps. You'll have to use lighter weight to do this on the weighted exercises. You can probably find the instructions each of the exercises by googling them. The workout lasts approx. 45 min. BRING IT!

How much horsepower does a freight train have?

Locomotives come in a wide range of horsepower ratings. Mostly based on what its application was to do. A modern day,new, six axle, diesal locomotive that you see that pull those long, heavy trains will mostly have 4300hp to 4400hp. Those horsepower ratings are the industry standard in North America. But there were modern locomotives that have higher ratings than that - the General Electric AC6000CW or the Electro Motive Diesel (EMD) SD90MAC locomotives had 6000hp, but both were discontinued due to reliability issues. However EMD now puts that same 6000hp prime mover in the JT56Ace, a locomotive they make for China, of course an improved version. Some Europeon passenger electric loco's actually have more horsepower than the frieght loco's here in North America (fed from above power lines) - some over 7000 hp - but they do not possess the tractive effort (pulling power) like the frieght loco's have here, therefore there not very long trains- that horsepower they have is more for speed.

What happens to your body when you exercise?

wbe continuous blood circulation that helps in growth of brain cells and make them active.it makes our body warm and fit by using each part of our body.so those muscles that were not in use gets energy .it makes our mind peaceful

What is the loudest train horn?

The loudest air horn in use on American railroads today is the Nathan K5LLA, a 5 chime air horn standard on EMD SD70ACe/M-2 locomotives.

Dan

www.youtube.com/BNSF9187

What is the be fitness?

The fitness is considered as the ability of an individual to perform a specific physical task at high level of effort. It not only covers the physical aspect but also has many other aspects on which the physical aspects on which the physical fitness varies. The statement issued by the AMERICAN MEDICAL ASSOCIATION clearly defines physical fitness as ''fitness for living rests first of all upon a solid foundation of living rests first of all upon a solid foundation of basis of basis good health ................ Fitness for living implies freedom from disease; enough strength, agility, endurance and skill to meet the demands of daily living; reserves sufficient to withstand ordinary stresses without strain; and mental and emotional adjustment appropriate to the nature of the individual. physical fitness is but one element of total fitness.''

Exercise is a subset of physical activity that is?

Done specifically to achieve or maintain fitness.

How can you exercise your rights as a consumer?

by enjoying discounts at stores and if you like socializing you could join a consumers local party which helps consumers in your area including you to make better choices on your purchases.

How are basal metabolic rate and caloric expenditure related?

Basal metabolic rate (BMR) refers to the number of calories your body needs to maintain basic physiological functions at rest, such as breathing and circulation. Caloric expenditure encompasses the total number of calories burned throughout the day, including BMR, physical activity, and the thermic effect of food. Thus, BMR is a crucial component of overall caloric expenditure, influencing how many calories one should consume to maintain, lose, or gain weight. Understanding the relationship between BMR and caloric expenditure helps in creating effective diet and exercise plans.

72 hour buyers remorse law in Utah?

I wish to terminate a DISH Network contract installed on Saturday, March 22 - Dish says not without penalty - system works erratically if at all. Am I toast?

What are the causes of anticipatory rise?

Anticipatory rise occurs just before exercise, this is due to a hormonal response causing adrenaline to increase. This would increase heart rate and blood pressure causing more oxygen to working muscles, having a positive and effective response on performance.

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