Sentences with phrase «of voluntary muscle»

Also known as Lou Gehrig's disease, ALS disease is responsible for the gradual deterioration of voluntary muscle control which will affect behaviors such as chewing, walking, breathing and talking.

SMA is typically marked by the degeneration of voluntary muscle movement including the muscles that control crawling, walking, swallowing or breathing.

A physiologic state of relative unconsciousness and inaction of the voluntary muscles, the need for which recurs periodically.

Learning Objective (s): Explore the function and structure of voluntary muscles.

Not exact matches

«The Duchenne smile involves both voluntary and involuntary contraction from two muscles: the zygomatic major (raising the corners of the mouth) and the orbicularis oculi (raising the cheeks and producing crow's feet around the eyes),» according to Adoree Durayappah in Psychology Today.

The disorder eats away at motor functions and disrupts voluntary muscles; patients usually die within three to five years of the first symptoms as they lose their ability to breathe.

But the cerebral cortex — the part of the brain that has thoughts, stores memories, and controls voluntary muscle movement — only kicks into gear after encountering the world outside the womb.

In order for your child to be able to eliminate when s / he wants to (voluntary vs. involuntary), her / his sphincter muscles have to be developed / mature enough to delay excretion for a brief period of time.

Perchance to Dream In 1953 Nathaniel Kleitman of the University of Chicago and his graduate student Eugene Aserinsky discovered that slumber, which had been considered a single continuous period of downtime, contains recurring periods in which the sleeper's eyes move about, heartbeat and breathing become irregular, most voluntary muscles are paralyzed and brain activity (as measured by electroencephalography) is heightened.

By this time I knew that Grace had begun to exhibit various signs indicating destruction of the cells of some of her voluntary muscle tissue, a process called rhabdomyolysis.

Muscular Dystrophy is a hereditary condition marked by weakness and progressive wasting of the muscles, while ALS impacts nerve cells that control voluntary muscle movement.

Many ultimately regained voluntary control of their leg muscles, standing up and even walking on their own.

This Japan Aerospace Exploration Agency study takes a look the health benefits of applying electric stimulation to a muscle opposing the voluntary contraction of an active muscle.

Within just a few days of the start of stimulation, all three patients regained some voluntary control of previously paralyzed muscles.

Friedreich's is the most common recessive ataxia (a lack of muscle control in voluntary movement) and results from deficient expression of the small mitochondrial protein frataxin.

Now, in this follow - up study, Claudia Angeli, Ph.D., assistant professor at the University of Louisville's Kentucky Spinal Cord Injury Research Center and her research colleagues report that three additional patients with paralysis have recovered voluntary muscle control following electrical stimulation of the spine.

Such action potentials from the motor cortex of the brain, for example, are the signals sent to muscles to initiate voluntary movement, such as pointing a finger.

Beyond regaining voluntary movement, the research participants have displayed a myriad of improvements in their overall health, including the increase of muscle mass and regulation of their blood pressure, as well as reduced fatigue and transformational changes to their sense of well - being.

Ian Burkhart, a 23 - year - old quadriplegic from Dublin, Ohio, is the first patient to use Neurobridge, an electronic neural bypass for spinal cord injuries that reconnects the brain directly to muscles, allowing voluntary and functional control of a paralyzed limb.

With voluntary muscle action progressively affected, patients in the later stages of the disease may become totally paralyzed.

This consortium of researchers, clinicians, and patients, has «systematically investigated and graded» evidence for over 35 «alternative» treatments for Amyotrophic Lateral Sclerosis (ALS, aka Lou Gehrig's disease), a fatal disease that destroys the nerve cells that control voluntary muscle movement.

Topics such as the mechanisms of cell injury in normal and dystrophic muscle, compensatory muscle regeneration and hypertrophy, and the effects of various therapies or voluntary exercise on muscle repair, satellite cell activation, muscle growth, bone density and age - related atrophy are examined using a large variety of cellular, molecular and whole - animal in vivo assays of function.

It is caused by a missing or defective gene that maintains the health of spinal nerves called motor neurons, which control voluntary muscle function.

We use models to study the form of time - varying control signals to muscles that the central nervous system must generate to produce voluntary movement.

Diverse approaches such as multisensory integration searches, psychophysics of perception of gravitational movements, control of eye movements, interlimb coordination, muscle synergies, and locomotor rhythms are considered for the generation of voluntary movement.

There is another study that showed that the people who visualized their muscles during leg presses while resting, boosted their abilities of doing maximal voluntary contractions.

The maximum voluntary isometric contraction (MVIC) has been measured and recorded by placing electromyography electrolytes on each of the muscles — quads, hamstrings, and glutes.

Both postural and phasic muscles are skeletal muscle, which is categorized as voluntary muscle: voluntary, as opposed to the smooth muscle your organs are made of, which is involuntary — meaning your organs continue to do their job without your conscious control or consent (even, for example, when you're not thinking about what your small intestine is doing).

When using the power of stretching to relieve stress the primary focus will be on voluntary muscles groups.

Every time you reach for a glass of water you are using voluntary muscles in your arm.

The central nervous system, consisting of the brain and spinal cord, is connected to the muscles through the peripheral nervous system, which is divided into somatic (voluntary) and autonomic (involuntary or unconscious) components.

Muscle tissue of the body primarily functions as a source of power, you flex muscles and use them in a voluntary or involuntary way to perform tasks.

The study of electricity in muscles probably began as early as the middle of the 1600s, with the discovery of the electric ray fish and experiments using frog legs (Clarys, 1994; Reaz et al. 2006), although it was not until 1792 that it was discovered that electricity could actually produce muscle contractions (Reaz et al. 2006), and 1849, when it was found that electric potential difference (also known as voltage) could be monitored in voluntary muscle actions (Reaz et al. 2006).

Using the strict definition, voluntary activation refers to the percentage of involuntary force production that can be exerted by an agonist muscle group, most commonly using the interpolated twitch technique (Shield & Zhou, 2004).

The presence of different levels of muscle activity has been observed both using surface electrodes and fine wire (intramuscular electrodes) and during maximal voluntary isometric contraction (MVIC), resistance training exercises, and normal humans movements such as gait.

The most important findings presented are as follows: (a) There was a significant increase in knee joint ROM at 2 minutes postfoam rolling (12.7 %) and 10 minutes postfoam rolling (10.3 %) of the quadriceps muscles, (b) there was no significant changes in voluntary or evoked muscle properties after foam rolling, and (c) after foam rolling, the negative correlation between ROM and force production no longer existed.

An interpolated twitch ratio was calculated comparing the amplitude of the interpolated twitch with the potentiated twitch to estimate the extent of inactivation during a voluntary contraction (interpolated doublet force / potentiated doublet force × 100 = percent of muscle inactivation)(10).

A within - subject design was used to examine the acute effects of self - induced myofascial release of the quadriceps muscles on: ROM, maximum voluntary force, muscle activation, tetanic force, twitch force and half relaxation time, and rate of force development (RFD).

This study tested muscle activation during maximum voluntary contractions of hip extension, in different hip flexion joint angles while the knee was flexed, and found that gluteus maximus EMG amplitude was reduced by a third when the hip was flexed, compared to when it was fully extended.

They report that the pronated grip pull up produced comparable (120 % vs. 117 % of maximum voluntary isometric contraction (MVIC) levels) latissimus dorsi muscle activity compared with the supinated chin - up exercise.

They reported that the inverted row performed with a supinated grip produced superior (94 % vs. 79 % of maximum voluntary isometric contraction (MVIC) levels) latissimus dorsi muscle activity compared to the pronated grip inverted row variation.

Epilepsy — This condition stems from defects in the electrical transmission of nerve signals within a cat's cerebral cortex, the area of the brain responsible for thought, memory, sensation and voluntary muscle movement.

C.M. did not show typical signs of maximum voluntary efforts such as changes in posture or use of ancillary muscles;