Propagation of Measurement Errors Through Body Composition Equations for Body Impedance Analysis

Sanchez, Benjamin; Aroul, Antoine Lourdes Praveen; Bartolome, E.; Soundarapandian, Karthikeyan; Bardia, Ramon Bragós

doi:10.1109/tim.2013.2292272

Cited by 28 publications

(19 citation statements)

References 24 publications

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“…Indeed, the standard errors in the Cole model parameters shown in gray in Figure 4 and 7 below confirm that measurement errors were not propagated and the modeling was performed correctly [25]. Figure 3 shows the temporal evolution of the resistance, reactance, and force as well as the corresponding stimuli that were used to produce the muscle contraction, evaluated at a frequency of 51 kHz.…”

Section: A Muscle Impedance Spectroscopy Data In Normal Animals Durimentioning

confidence: 73%

Impedance Alterations in Healthy and Diseased Mice During Electrically Induced Muscle Contraction

Sanchez

Geisbush

et al. 2016

IEEE Trans. Biomed. Eng.

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Abstract-Alterations in the health of muscles can be evaluated through the use of electrical impedance myography (EIM). To date, however, nearly all work in this field has relied upon the measurement of muscle at rest. To provide insight into the contractile mechanisms of healthy and disease muscle, we evaluated the alterations in the spectroscopic impedance behavior of muscle during the active process of muscle contraction. The gastrocnemii from a total of 13 mice were studied (5 wild type, 4 muscular dystrophy animals, and 4 amyotrophic lateral sclerosis animals). Muscle contraction was induced via monophasic current pulse stimulation of the sciatic nerve. Simultaneously, multisine EIM (1 kHz to 1 MHz) and force measurements of the muscle were performed. Stimulation was applied at 3 different rates to produce mild, moderate and strong contractions. We identified changes in both single and multifrequency data, as assessed by the Cole impedance model parameters. The processes of contraction and relaxation were clearly identified in the impedance spectra and quantified via derivative plots. Reductions in the center frequency f c were observed during the contraction consistent with increasing muscle fiber diameter. Different EIM stimulation rate-dependencies were also detected across the 3 groups of animals.

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Section: A Muscle Impedance Spectroscopy Data In Normal Animals Durimentioning

confidence: 73%

Impedance Alterations in Healthy and Diseased Mice During Electrically Induced Muscle Contraction

Sanchez

Geisbush

et al. 2016

IEEE Trans. Biomed. Eng.

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“…Its design is based on a 6-bit pattern generator, a VCCS that generates a current signal between two terminals and a 16-bit ADC. However, the 150 kHz limit of the system makes it unsuitable for bioimpedance spectroscopy applications [133]. AD8302 of Analog Devices is a phase and gain detector that has also been used in bioimpedance estimations [105].…”

Section: Journal Of Sensors 11mentioning

confidence: 99%

Fundamentals, Recent Advances, and Future Challenges in Bioimpedance Devices for Healthcare Applications

2019

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This work develops a thorough review of bioimpedance systems for healthcare applications. The basis and fundamentals of bioimpedance measurements are described covering issues ranging from the hardware diagrams to the configurations and designs of the electrodes and from the mathematical models that describe the frequency behavior of the bioimpedance to the sources of noise and artifacts. Bioimpedance applications such as body composition assessment, impedance cardiography (ICG), transthoracic impedance pneumography, electrical impedance tomography (EIT), and skin conductance are described and analyzed. A breakdown of recent advances and future challenges of bioimpedance is also performed, addressing topics such as transducers for biosensors and Lab-on-Chip technology, measurements in implantable systems, characterization of new parameters and substances, and novel bioimpedance applications.

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“…Regarding the techniques applied to EIM measurements, most have been based on classical digital/analogue steppedsine based impedance analyzers [7], e.g. based on the autobalancing bridge like the HP4192 from Hewlett-Packard.…”

Section: Impedance Instrumentationmentioning

confidence: 99%

A pilot spectroscopy study on time-varying bioimpedance during electrically-induced muscle contraction

Sanchez

Geisbush

et al. 2014

2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Alterations in the health of muscles can be evaluated through the use of electrical impedance myography (EIM). To date, however, nearly all work has relied upon single-frequency/spectroscopy stepped-sine measurements of static muscle (contracted or relaxed). In this work, we assessed the temporal alterations in the impedance spectrum (1 kHz to 1 MHz) behavior of gastrocnemius during the active process of muscle contraction. The approach is based on the multisine impedance spectroscopy technique. The gastrocnemii of a wild type mouse was measured during electrically-induced muscle contraction via direct current stimulation of the sciatic nerve. The processes of contraction and relaxation were clearly identified in the time-frequency impedance spectrum likely corresponding to an increase muscle fiber diameter. The technique of dynamic multisine EIM has the potential of providing useful insights into contractile mechanisms of muscle in health and disease.

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Propagation of Measurement Errors Through Body Composition Equations for Body Impedance Analysis

Cited by 28 publications

References 24 publications

Impedance Alterations in Healthy and Diseased Mice During Electrically Induced Muscle Contraction

Impedance Alterations in Healthy and Diseased Mice During Electrically Induced Muscle Contraction

Fundamentals, Recent Advances, and Future Challenges in Bioimpedance Devices for Healthcare Applications

A pilot spectroscopy study on time-varying bioimpedance during electrically-induced muscle contraction

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