Based on the graph, describe the relationship (or lack thereof) between the maximum EMG activity and the number of pushups completed. b) Knowing force output is constant from pushup to pushup, how does fatigue impact motor unit recruitment

Based on the graph, describe the relationship (or lack thereof) between the maximum EMG activity and the number of pushups completed. b) Knowing force output is constant from pushup to pushup, how does fatigue impact motor unit recruitment

Biomedical Instrumentation Systems

1st Edition

ISBN:9781133478294

Author:Chatterjee

Publisher:Chatterjee

Chapter8: Defibrillators And Pacemakers

Section: Chapter Questions

Problem 4Q

See similar textbooks

Related questions

Q: 1. Perform as many push-ups or modified push-ups as possible without stopping. The maximal number of…

A: Introduction :- The muscular system is in charge of controlling our body's and internal organs'…

Q: What is Rapid Upper Limb Assessment?

A: * Rapid Upper Limb Assessment (RULA) is a tool to identify risk factors associated with upper limb…

Q: Describe the Exercise-Induced Muscle Soreness?

A: Exercise-Induced Muscle Soreness is the pain and stiffness felt in muscles several hours to days…

Q: What is Backward slippage?

A: Slipped strand mispairing (SSM), (also known as replication slippage), is a mutation process that…

Q: With regards to transversus abdominus, how does its activation differ during a simple shoulder…

A: Tranversus adbominis refers to the muscular sheet present on the front and side of the abdominal…

Q: During this silent period what structures are likely to be producing trunk extension torque? Is this…

A: The muscle activation pattern illustrated is termed the myoelectric ‘silent period’, or…

Q: Is there a difference in the time to fatigue of the dominant and non-dominant arm? Cite relevant…

A: The dominant forearm is the strongest forearm naturally. It is the hand that is always chosen to…

Q: Describe possible mechanisms for why blood pressure may have a greater change during the Valsalva…

A: Physical fitness is essential in our everyday lives, it benefits us in so many ways and makes us…

Q: Is there a difference in the absolute values of force generated in the dominant arm by males and…

A: An arm of an individual is considered as dominant arm which is used more frequently. There is a…

Q: What do these results tell you about when and how much you use your extensor muscles?

A: Humans have a well-developed muscular and skeletal system for the movement and locomotion of the…

Q: What causes the variation of the measurements for the periods (latent, contraction, relaxation…

A: Motor neurons that are located in the motor cortex of the brainstem or the spinal cord innervate…

Q: If the muscle fiber is stretched to 150% of muscle length and thentechnically stimulated, what would…

A: Muscle contraction is shorting of length of muscle which lead to locomotion and movement. Most…

Q: What is the main active muscle group across the (i) right knee joint and (ii) right ankle joint…

A: INTRODUCTION Muscles are group of muscle fiber they can contract and relax and they produce force.…

Q: What is different in the sarcomere of a person with DMD compared to a person without DMD?

A: Muscles are the tissues which helps in the locomotion and movement. There are different types of…

Q: Why is energy surplus required for lean muscle mass gain and why is it a major challenge for most…

A: Our body requires a significant amount of energy for performing it's normal daily activities. These…

Q: Which among the four choices below is NOT a typically way to measure muscle strength? Maximum force…

A: The maximum force a muscle or a muscle group may exert during a contraction is known as muscular…

Q: When holding an object, does the number of motor units remain the same? Are the same motor units…

A: Motor unit is made up of a motor neuron and the skeletal muscle fibers innervated by the motor…

Q: Define synergistic effect

A: There are several molecules that are released by the animal's body like hormones and enzymes that…

Q: Before testing a true 1-RM exercise, why should you allow your client to complete 3 trial…

A: RM (repetition maximum ) is often expressed as a one-repetition maximum or 1-RM. It signifies the…

Q: Identify the ways that increased IP3 can cause contraction. Identify the ways that increased cAMP…

A: 1. The contraction of the smooth muscle is generated due to the production of several…

Q: On the sustained contraction recording, indicate when the muscle twitches began to combine…

A: The neuron that transmits the stimulus to muscle is known as motor neuron. The motor unit consists…

Q: The goal of progressively advancing exercise, starting with slow basic movements and moving toward…

A: Exercise is any type of movement that makes the muscle work and requires calories burns in the body.…

Q: At what frequency of stimulation did tetanic contraction occur?

A: The muscles are stimulated by the nerve impulses causing the contraction of the muscles. The muscle…

Q: Does complete or incomplete tetanus occur physiologically? Explain.

A: Tetanus or lockjaw is a serious bacterial disease that causes difficult muscle fits and can prompt…

Q: What are the directional terms associated with the a push up?

A: There are two components of push-up exercise: A front plank and a press-up component. The front…

Q: When motor units are recruited to participate in tension development in a muscle, the order of…

A: Introduction A motor unit consists of a motor neuron as well as all of the skeletal muscle fibres…

Q: Describe the characteristics of Duchenne’s musculardystrophy.

A: Muscular disorder Primary function of muscular system includes, maintaining posture, muscle tone,…

Q: If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from…

A: Introduction The biceps muscle is located in the front of the upper arm. The biceps consists of a…

Q: 1. Explain why isokinetic work is more beneficial towards the later stages of the rehabilitation…

A: Introduction :-The initial stage of rehabilitation phase lasts for 4-6 days after the injury. It is…

Q: Describe what the “silent period” is during trunk flexion.

A: The trunk flexion is the result of the simultaneous spine flexion and forwards pelvic tilt. For the…

Q: Why is the increase in velocity inversely proportional to the sarcomere length?

A: A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main…

Q: What causes the variations kn the measurements for the twitch amplitudes for different twitches?

A: A contraction of muscle fibers generate when an action potential pass down the motor neurons. A…

Q: What is the optimum muscle activity to undertake for muscular hypertrophy? Explain deeply

A: Muscle hypertrophy is increase in the size mass of muscle due to its excessive constant use.Muscular…

Q: Identify the type of muscle contraction involved in the jump and describe the movement patterns of…

A: Verticle jumping is a plyometric exercise that involves exertion of maximum force for a short time.…

Q: How are contractions timed? Include frequency, duration and list 3 intensity levels of contractions.

A: Contractions that developed at the end of pregnancy are important in assessing the stage of labor.…

Q: According to the free-body diagram, which forces act on both teams and rope before motion begins and…

A: A free-body diagram is a visual representation of the magnitude and direction of all forces on an…

Q: What are 2 agonists and antagonists for subtalar eversion?

A: Body and joints movement is facilitated by multiple types of bones and muscle fibers. Arrangements…

Q: Why is it advantageous to have a highly folded sarcolemma at the motor end plate?

A: Neuromuscular junction is area or junction or connection between the end of the motor nerve plate…

Q: Name 4 exercises that include VARIOUS DIRECTIONAL LOCOMOTOR & BALLISTIC MOVEMENTS, 3 PLANES OF…

A: Three planes of movement are sagittal, transverse, and frontal planes. Ballistic movements have…

Q: List and describe three changes in muscles that occur duringendurance training and explain how each…

A: Three changes in muscles that occur during endurance training are: a slower utilization of…

Question

a) Based on the graph, describe the relationship (or lack thereof) between the maximum EMG activity and the number of pushups completed. b) Knowing force output is constant from pushup to pushup, how does fatigue impact motor unit recruitment?

Max EMG Value vs. Push-up Number
1.5
1.0
0.5
0.0
10
15
20
25
Push-up Number
Max EMG Value

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Calculate the duration of action assuming that the minimum effective concentration is 5mg/L 1000 100 y 400e0916 10 05 15 2. 2.5 Time (hours) Plasma concentration (me/)
Which of the following is a positive inotrope? Na+ K+ Ca2+ both Na+ and K+
mL/hr For the following order/supply, calculate the pump setting: Order: KCI 40 mEq/L at 10 mEq/hour IV, in D5W 1000 mL Supply: infusion pump, vial of KCI labeled 20 mEq/10 mL
In the same BP measurement= 120/80, what is the arterial pressure when the left ventricle is at the peak of its contraction? Choices: 120804093
The order in the MAR is for Atropine 15 mg IV q6h hours PRN. How many mL will you give if the dosage strength is 75mg/7.5mL?
Caleb is 14 years old. An appropriate method of prescribing intensity for Caleb, based upon the ACSM recommendations of moderate to vigorous intensity exercise, is 65-95% of heart rate max.
F2 over the arrow connecting these variables. The slope of this relationship is 0.225 mmHg/(L/min). In the absence of the drug, Xor's blood pressure would drop as low as 70 mmHg. As the blood pressure falls to 70 mm Hg, how much drug should we administer to restore the blood pressure to 105 mmH? To answer this question, assume the following conditions: 1. the drug directly affects the rate of blood flow from the heart (L/min), 2. the drug has no effect at dosages below 41 g and has a linear effect on the rate of blood flow at dosages above 41 g. The slope of this linear effect is 2.91 (L/min) / g of drug, and 3. the drug must increase the rate of blood flow enough to increase the blood pressure from 70 mm Hg to 105 mmHg, and 4. the slope of the linear relationship between the rate of blood flow from the heart and the blood pressure in megaraffes is 0.225 mmHg/(L/min). Our goal is to determine the dosage of the drug needed to increase the blood pressure by 35 mmHg. We'll work backwards…
DA-LTE Blood is flowing through a bundle of hollow fiber tubes that are each 50 µm in diameter. There are 10,000 tubes in the bundle. The hollow fiber tube length is 12 cm and the pressure drop across each tube is found to be 250 mmHg. The hematocrit of the blood is 0.40. Estimate the blood flow rate for these conditions in each tube.
Table 1 Blood pressure recordings for all positions Body positions Mean systolic BP Mean diastolic BP Sitting position Standing position Supine position Supine position with crossed legs 102-8 + 11-4 65-7 + 82 99.9 + 10-2 66-0 + 8-7 107-9 + 10-7 66-9 + 96 107-0 + 86 66-7 + 7-3 F= 444, P 00s BP, blood pressure. Table 2 Pairwise comparisons between positions in systolic BP Sitting position position Standing Supine position Standing position Supine position Supine position with crossed legs *, the mean difference is significant at the level 0-05 level. Adjustment for multiple comparisons: Bonferroni. Does age factor has any influences in the blood pressure with the change of body positions?
Result (reference range) Fibrinogen, g/L < 0.2 (2.2-4.2) Define fibrinogen and how to interpret the test. The reference range is in the table above.
Order: dopamine 3 mcg/kg/min IVPatient 250 lbSupply 8mg/250 mL D5W
Calculate %HRR for an individual (63 years old) who has a heart rate of 140 during running. The resting heart rate of this individual is 60 (HRmax= 208-0.7* age).