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Doctor insights on: Human Muscle Sketch

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What is the mechanism by which smooth, skelatol and cardiac muscle twitch?

What is the mechanism by which smooth, skelatol and cardiac muscle twitch?

Depolarization: When you apply an electric current to any of the above fibers, you cause depolarization, ion flux, and movement of protein filaments resulting in the characteristic "twitch". If you're really interested, check out: http://www.Youtube.Com/watch?V=fduja8rwntk. ...Read more

Muscle (Definition)

It is a body tissue that has the ability to contract. It shortens and generates force. It relaxes and returns to its original length. Muscles move joints, stabilize the body, move air and food through the organs, act as valves for bladder, bowel and other organs. They control movement of the eyes. They help us express ourselves by changing the shape of our ...Read more


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Does creatine kinase only rise with muscle injury?

Does creatine kinase only rise with muscle injury?

Muscle and Brain: Creatine kinase is present in skeletal muscle, heart, smooth muscle and brain and injury to any of these can cause elevation of this enzyme. ...Read more

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Does stretching break the muscle fibers the same way as resistance training?

Does stretching break the muscle fibers the same way as resistance training?

No: The effects of muscle stretching are different than resistance training. Both are important. Stretching, particularly after you are warmed up helps balance the muscles from the front of the body with the muscles in the back of the body. This is important to avoid injury and help your joints work with less stress. Resistance training will build muscle strength by inducing muscles to enlarge. ...Read more

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Weakest and strongest muscle in the human body?

Weakest and strongest muscle in the human body?

My choices: Strongest: quadriceps femoris, somtimes considered four muscles. Weakest: stapedius of the ear, a tiny muscle that modulates hearing conduction. ...Read more

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What muscle does the upward dog pose work out?

What muscle does the upward dog pose work out?

Upward Dog: The upward facing dog pose strengthens the spine/arms/wrists, stimulates abdominal organs, & improves posture by stretching anterior spine & strengthening posterior spine, stretches chest/shoulder/abdomen, relieves depression/fatigue/sciatic pain, & helps with asthma symptoms. ...Read more

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Are there compounding benefits from strength training targeting opposing muscle groups? Why is that? Thanks.

Are there compounding benefits from strength training targeting opposing muscle groups? Why is that? Thanks.

Preventing fatigue: And overwork of a group of muscles is the key point. The idea is that you allow the muscle group time to recuperate while you focus on thier opposite number. It is not so much compounding effects as it is time management that allows for relative rest while continuing you workout program. True isolation is difficult but the theory is sound. ...Read more

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If humans evolved from apes.Why human body is not as strong as apes or chimpanzees?How to make our bodies(bones and muscles) stronger?

If humans evolved from apes.Why human body is not as strong as apes or chimpanzees?How to make our bodies(bones and muscles) stronger?

Apes/chimps: Humans are not apes or chimps! Yes, they are strong but would have little to do with you. At your age I strongly recommend you go to a nearby training program. You will be pleasantly surprised and let many of your friends know how good and straightforward it is. ...Read more

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Will shots of human growth hormone help me build muscle fast?

Will shots of human growth hormone help me build muscle fast?

Not approved: Growth hormone is an anabolic substance, meaning it promotes the production of protein. It is not approved for such purposes, but athletes having using it as a performance enhancer and to quiken recovery of injured muscle. There are no scientific studies verifying this since it is not approved for such. Beware of going against nature's design, she will ask for payback. ...Read more

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Ems (electrical muscle stimulation) unit - is this useful for building up my muscle tone?

Ems (electrical muscle stimulation) unit - is this useful for building up my muscle tone?

YES: Filipovic, kleinöder dörmann, an mester in a review published in 2011 (j strength cond res. 2011 nov 5) found that ems could increase fitness and performance. ...Read more

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How quick does HGH build muscle mass!?

HGH: Be VERY careful with this drug. DO NOT TAKE UNLESS YOUR DOCTOR HAS DOCUMENTED LOW GROWTH HORMONE LEVELS! ...Read more

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What sports naturally raise human growth hormone the most?

High intensity sport: A sprinter running the 400m will have an hgh spike greater than someone running 5k. Weightifters doing only a few rep max, will have greater increase in gh levels than someone doing many reps. It is absolutely conclusive as shown by a number of studies. ...Read more

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The pull-up is a muscular resistance exercise that primarily works which muscle group?

Latissimus Dorsi: A traditional pull-up relies on upper body strength with no swinging or "kipping" (using a forceful initial movement of the legs in order to gain momentum). The exercise often targets the latissimus dorsi muscle in the back along with many other assisting muscles. ...Read more

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What is it called when skeletal muscle fibers break down?

What is it called when skeletal muscle fibers break down?

Rhabdomyolisis: Rhabdomyolisis is the breakdown of skeletal muscle fibers. More about rhabdomyolisis http://www.medicinenet.com/rhabdomyolysis/article.htm . ...Read more

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Is the electric muscle stimulator ( EMS ) bad for the muscles, skin, health problems, etc..?

Is the electric muscle stimulator ( EMS )  bad for the muscles, skin, health problems, etc..?

Electric muscle stim: First of all are you using it on your own or are you going to a physical therapy place or a physical medicine doctor for this? If you use it under the supervision of a healthcare provider, it should be okay. Too much is not good and if used on your own, it could be harmful, so please check with a doctor. ...Read more

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Best way of building muscle in arms?

Best way of building muscle in arms?

Resistance training: The best way of building muscle is by careful resistance training, including weights, programs like cross fit, isometric exercises and others. If you are starting a new work out program after being inactive for a long time, you should check with your doc first to make sure you don't have any issues to worry about. ...Read more

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What type of muscle twitch fibers does the psoas muscle have?

What type of muscle twitch fibers does the psoas muscle have?

Type 1 and 2: All skeletal muscle has a mixture of type 1 (slow twitch) and type 2 (fast twitch) muscle fibers, including the psoas. ...Read more