what else EMG analysis could be used for in rehabilitation as well as how the concepts of fatigue and myoelectric thresholds should be incorporated into FES system design
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In your conclusions discuss what else EMG analysis could be used for in rehabilitation as well as
how the concepts of fatigue and myoelectric thresholds should be incorporated into FES system design.
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- Put the steps for running an EMG to study fatigue in the correct order. At regular intervals, measure the applied force by looking at the blue signal. ts Increase the clench force to maximum eBook eferences Start recording the EMG signal. 3 At every interval, count the number of active motor units, repeat until the applied force drops to 50% of its initial value Mc Graw Hill ype here to searchIn EMG measurement what does needle electrode measure ? * O The action of the muscle The action of the muscle fiber O The action of group of muscles.please develop a comprehensive plan to assess the biomechanics of jumping and landing using the instrumentation tools discussed in the first four (4) modules - (EMG, kinetics, kinematics, and wearable devices) from one (1) of the following perspectives: ● ● ● A physical therapist working in a hospital-based outpatient orthopedic or neurologic clinic An athletic trainer working in a university setting A strength and conditioning coach working with a professional sports team or Olympic governing body An exercise specialist working with persons with diseases which can be managed or positively impacted through exercise An exercise specialist working in a commercial, community, or corporate fitness setting
- Human Anatomy & Physiology I (BIO168) Sequence of Events for Muscle Contraction Practice Worksheet See if you can place the events that occur during muscle contraction and relaxation in their proper order. Insert numbers in the paces provided to order the events in the proper sequence. _____ A. An electrical impulse travels over the sarcolemma and inward along the T-tubules, causing sacs in the sarcoplasmic reticulum to release calcium. ____ B. The release of ACh stops and acetylcholinesterase breaks down any remaining ACh. _____ C. Troponin and tropomyosin prevent the myosin heads from grasping the thin filament, and the muscle fiber relaxes. _____ D. An electrical impulse causes small vesicles at the end of a motor neuron to release the neurotransmitter acetylcholine (ACh). _____ E. Calcium binds with the troponin on the actin filament, exposing attachment points. _____ F. ACh diffuses across the synaptic cleft, where it stimulates receptors in the…Discuss the concept of thought-controlled input devices and their potential in medical applications and assistive technology. What ethical considerations arise when using thought-controlled devices?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
- Muscle Contraction In an experiment, the strength of a neural stimulus and the resulting muscle contraction are compared. A single motor neuron that synapses with one muscle fibre is observed in this experiment. One end of the muscle fibre is attached to a mass. The following data were obtained from the experiment. Analyze the data and answer the following questions. Number of Trials Strength of Stimulus (mV) Mass Lifted by Muscle Contraction (g) 1 20 2 40 3 60 50 4 80 50 100 Not Tested 120 50 *note that the voltage applied is positive in order to raise potential from resting to threshold Identify the manipulated, responding and controlled variables in the experiment described above. Strength of Stimulus Number of Muscle Fibre Stimulated Mass Lifted by Muscle ContractionThe following graph is simulated (but realistic) data from a VO₂max trial of a human athlete running (no gait changes). Estimate and label the following variables: VO2 (ml/kg/min) 1. VO₂max 2. Incremental cost of locomotion 3. Maximum aerobic speed 4. RMR + postural costs 70 60 50 40 30 20 10 0 2 3 4 5 6 7 8 9 10 11 12 13 MPHHow dose the use of lab and shoulder restraints influence the patterns of injury described here? (Up -and-over,down-and-under pathways)
- If one engages in a 6-month endurance training program employing all aspects of the F.I.T.T.-R. approach, which of the following changes would be observed compared to the untrained (pre-training) state? Select ALL that are likely to be true. a. An increase in skeletal muscle citrate synthase enzyme activity b. Measurable increases in mood state c. A large (>50%) decrease in resting blood lactate concentration d. An increase in skeletal muscle gluconeogenic potential e. An increase in cardiac muscle mitochondrial number f. An increase in skeletal muscle cytochrome oxidase activityIn an experiment, the strength of a neural stimulus and the resulting muscle contraction are compared. A single motor neuron that synapses with one muscle fibre is observed in this experiment. One end of the muscle fibre is attached to a mass. The following data were obtained from the experiment. Number of Trials Strength of Stimulus (mV) Mass Lifted by Muscle Contraction (g) 1 20 0 2 40 0 3 60 50 4 80 50 5 100 Not Tested 6 120 50 Is the threshold potential for this muscle fibre exactly 50 mV. Do you agree or disagree? Explain.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.