Biomaterial Database

Vibrations and sounds from evoked muscle twitches. 1992

D T Barry

Department of Physical Medicine and Rehabilitation, Unviersity of Michigan Medical Center, Ann Arbor 48109-0042.

Muscle sounds are related to force production, fatigue, and pathology of muscle. However, sound data are frequently contaminated by tremor and motivational artifacts. Also, sound data are frequently reported in transducer-dependent units such as millivolts. To eliminate tremor and motivational artifacts and to obtain data in fundamental, nontransducer-dependent units, an accelerometer was used to record vibrations from human hand muscle twitches evoked by percutaneous stimulation. Reliable and reproducible waveforms were obtained from normal adult volunteers by recording from abductor pollicis brevis (APB) or abductor digiti quinti hand (ADQH) muscle after median or ulnar nerve stimulation, respectively. Latencies from the stimulus to the onset of the acceleration waveform were 5.7 +/- 0.6 and 5.1 +/- 0.6 ms, peak-to-peak amplitudes were 6.5 +/- 2.4 and 7.2 +/- 2.0 m/s2 for the APB and ADQH muscles, respectively.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009119	Muscle Contraction	A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.	Inotropism,Muscular Contraction,Contraction, Muscle,Contraction, Muscular,Contractions, Muscle,Contractions, Muscular,Inotropisms,Muscle Contractions,Muscular Contractions
D004561	Transcutaneous Electric Nerve Stimulation	The use of specifically placed small electrodes to deliver electrical impulses across the SKIN to relieve PAIN. It is used less frequently to produce ANESTHESIA.	Analgesic Cutaneous Electrostimulation,Electric Stimulation, Transcutaneous,Electroanalgesia,Percutaneous Electric Nerve Stimulation,TENS,Transdermal Electrostimulation,Electrical Stimulation, Transcutaneous,Percutaneous Electrical Nerve Stimulation,Percutaneous Electrical Neuromodulation,Percutaneous Neuromodulation Therapy,Transcutaneous Electrical Nerve Stimulation,Transcutaneous Nerve Stimulation,Cutaneous Electrostimulation, Analgesic,Electrical Neuromodulation, Percutaneous,Electrical Neuromodulations, Percutaneous,Electroanalgesias,Electrostimulation, Analgesic Cutaneous,Electrostimulation, Transdermal,Nerve Stimulation, Transcutaneous,Neuromodulation Therapy, Percutaneous,Neuromodulation, Percutaneous Electrical,Neuromodulations, Percutaneous Electrical,Percutaneous Electrical Neuromodulations,Percutaneous Neuromodulation Therapies,Stimulation, Transcutaneous Electric,Stimulation, Transcutaneous Nerve,Therapy, Percutaneous Neuromodulation,Transcutaneous Electric Stimulation,Transcutaneous Electrical Stimulation
D004576	Electromyography	Recording of the changes in electric potential of muscle by means of surface or needle electrodes.	Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005071	Evoked Potentials	Electrical responses recorded from nerve, muscle, SENSORY RECEPTOR, or area of the CENTRAL NERVOUS SYSTEM following stimulation. They range from less than a microvolt to several microvolts. The evoked potential can be auditory (EVOKED POTENTIALS, AUDITORY), somatosensory (EVOKED POTENTIALS, SOMATOSENSORY), visual (EVOKED POTENTIALS, VISUAL), or motor (EVOKED POTENTIALS, MOTOR), or other modalities that have been reported.	Event Related Potential,Event-Related Potentials,Evoked Potential,N100 Evoked Potential,P50 Evoked Potential,N1 Wave,N100 Evoked Potentials,N2 Wave,N200 Evoked Potentials,N3 Wave,N300 Evoked Potentials,N4 Wave,N400 Evoked Potentials,P2 Wave,P200 Evoked Potentials,P50 Evoked Potentials,P50 Wave,P600 Evoked Potentials,Potentials, Event-Related,Event Related Potentials,Event-Related Potential,Evoked Potential, N100,Evoked Potential, N200,Evoked Potential, N300,Evoked Potential, N400,Evoked Potential, P200,Evoked Potential, P50,Evoked Potential, P600,Evoked Potentials, N100,Evoked Potentials, N200,Evoked Potentials, N300,Evoked Potentials, N400,Evoked Potentials, P200,Evoked Potentials, P50,Evoked Potentials, P600,N1 Waves,N2 Waves,N200 Evoked Potential,N3 Waves,N300 Evoked Potential,N4 Waves,N400 Evoked Potential,P2 Waves,P200 Evoked Potential,P50 Waves,P600 Evoked Potential,Potential, Event Related,Potential, Event-Related,Potential, Evoked,Potentials, Event Related,Potentials, Evoked,Potentials, N400 Evoked,Related Potential, Event,Related Potentials, Event,Wave, N1,Wave, N2,Wave, N3,Wave, N4,Wave, P2,Wave, P50,Waves, N1,Waves, N2,Waves, N3,Waves, N4,Waves, P2,Waves, P50
D005260	Female		Females
D006225	Hand	The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.	Hands
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults