In EMG measurement what does needle electrode measure ? * The action of the muscle The action of the muscle fiber The action of group of muscles.
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Q: In EMG measurement what does needle electrode measure ? * The action of the muscle O The action of…
A: The needle electrode in EMG measurement measures the electrical induced action of muscle.
Q: In EMG measurement what does needle electrode measure ? * The action of the muscle
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- A research scientist is developing a new drug that blocks muscle cellreceptors that, when activated, stimulate a muscle contraction. In her firstexperiment, she used 250 mg of the new drug but saw no effect. In hersecond experiment, she increased the dosage to 750 mg. This dosagewas successful in blocking the muscle stimulation. Explain why increasingthe dosage would affect the outcome of the experiment.Article: Effect of Patterned Electrical Neuromuscular Stimulation on Vertical Jump in Collegiate Athletes This article presents research evidence regarding PENS (patterned electrical neuromuscular stimulation) and it’s effects on vertical jump of athletes. Please show a-e. a.) background b.) purpose c.) methods d.) results e.) conclusion Lastly, Reflect on the article. What did you learn? What made sense? What did you not understand or was confusing? What did you agree or disagree with? Do you have follow-up questions? How does this data apply to clinical practice? Will you clinically use this data?Continually training with a specific loading condition that does not vary over time will most likely result in _________________ and little additional improvement.velocity specificty accommodationmuscle action specificityreversibility
- Based on PRE lab readings, what do you expect to happen when a muscle is stimulated with a sub-threshold stimulus (below threshold 1. the muscle will forcefully contract until threshold is reached at which point it will fatigue 2. the muscle won't contract 3. the muscle will weakly contractplease explain in detail in your own words Why we need derived position. Aims of Passive ROM exercisedoes it prevent atrophy of a muscle or not?The motor unit firing patterns are measured in a human hand muscle using an electromyography (EMG) recording. Which one of the following statements is the best description of the EMG pattern observed as the individual voluntarily attempts to make a low-level force of contraction in the muscle and steadily increases the force of contraction? Low amplitude spikes visible on the EMG trace at low force. Larger amplitude spikes become visible with increasing force of contraction. Low frequency of small amplitude spikes on the EMG trace at low force. Spike frequency and amplitude increase with increasing force. A large single deflection in the trace as the individual contracts the muscle. The deflection gets larger with increasing force. Low frequency of spikes on the EMG trace at low force. The frequency of spikes becomes more frequent with increasing force.
- From the stroke algorithm shown in picture give and explain the rationale for each of the action(s) stated inside the Gray Boxes. Make sure toindicateand citeyour source(s) accordingly.The crista ampullaris is sensitive to :-a- sound vibrationsb- force of gravityc- linear accelerationd- angular accelerationIn your own words, explain how the EMG trace changed when you added weights to your arm?Based on the data you collected what can you infer is happening to the muscles as weight is added?
- In your own words, describe the main events occurring between the arrivalof an action potential at a motor neuron end plate and contraction of thecorresponding muscle. Use 250 words or less.if 2 clenches produce a reponse the excat same force of contration would the emg reoding also have to be the same response. Why or why notIf implanted electrodes were used to stimulate action potentials in gamma motor neurons to flexors of the left arm, which would be the most likely result?a. inhibition of the flexors of the left armb. a decrease in action potentials from muscle-spindle receptors in the left armc. a decrease in action potentials from Golgi tendon organs in the left armd. an increase in action potentials along alpha motor neurons to flexors inthe left arme. contraction of flexor muscles in the right arm
