Direct measurement of human movement by accelerometry

Godfrey, Alan; Conway, Richard; Meagher, David; ÓLaighin, Gearóid

doi:10.1016/j.medengphy.2008.09.005

Cited by 476 publications

(331 citation statements)

References 121 publications

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“…It has not been demonstrated that these anatomic and physiologic characteristics influence the muscle functions that generate the movement of articulation. Triaxial accelerometry is one of the most frequently employed biomechanical tools, and it has been used in studies on walking and physical activity 22 . Triaxial accelerometers can be positioned on different areas of the body, allowing for the measurement of acceleration values in three axes of displacement.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the neuromuscular compartments in the peroneus longus muscle through electrical stimulation and accelerometry

Méndez

Gatica

Guzmán

et al. 2013

Braz. J. Phys. Ther.

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| Background: Muscles are innervated exclusively by a nerve branch and possess definite actions. However, mammalian skeletal muscles, such as the trapezius, the medial gastrocnemius, and the peroneus longus, are compartmentalized. In the peroneus longus muscle, multiple motor points, which innervate individual neuromuscular compartments (NMC), the superior (S-NMC), anteroinferior (AI-NMC), and posteroinferior (PI-NMC), have been described. The contribution of each neuromuscular compartment to the final action of the muscle is fundamental for the rehabilitation of patients afflicted by neurological and muscle dysfunctions. Interventions are often based on electrical principles that take advantage of the physiological characteristics of muscles and nerves to generate therapeutic effects. Objective: To compare the effects of stimulating the different neuromuscular compartments (NMCs) of the peroneus longus muscle on the motor threshold (MT) and acceleration of the foot. Method: This is a cross-sectional study comprising 37 subjects. The three NMCs of the peroneus longus muscle were stimulated, and the acceleration of the foot and the motor threshold of each NMC were evaluated. A repeated measures analysis of variance with Bonferroni corrections of two intra-subjects factors was performed. Results: The stimulation of the different NMCs did not result in any differences in MT (F=2.635, P=0.079). There were significant differences between the axes of acceleration caused by the stimulation of the different NMCs (F=56,233; P=0.000). The stimulation of the posteroinferior compartment resulted in the greatest acceleration in the X-axis (mean 0.614; standard deviation 0.253). Conclusions: The posteroinferior compartment primarily contributes to the eversion movement of the foot. NMCs have specific functional roles that contribute to the actions of the muscles to which they belong.Keywords: neuromuscular compartment; peroneus longus muscle; accelerometry; motor threshold; motor point; physical therapy. HOW TO CITE THIS ARTICLEMéndez GA, Gatica VF, Guzmán EE, Soto AE. Evaluation of the neuromuscular compartments in the peroneus longus muscle through electrical stimulation and accelerometry. Braz J Phys Ther. 2013 Sept-Oct; 17(5):427-434. http://dx

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Section: Introductionmentioning

confidence: 99%

Evaluation of the neuromuscular compartments in the peroneus longus muscle through electrical stimulation and accelerometry

Méndez

Gatica

Guzmán

et al. 2013

Braz. J. Phys. Ther.

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“…These wireless sensor technologies are useful in sport biomechanics applications since they provide adequate sampling rates and allow subjects to perform normal movements with little encumbrances. There is also the added benefit of performing the exercise in an ecologically valid environment rather than in a laboratory [3,4].…”

Section: Introductionmentioning

confidence: 99%

Estimation of force during vertical jumps using body fixed accelerometers

Howard¹,

Conway²,

Harrison³

2014

25th IET Irish Signals &Amp; Systems Conference 2014 and 2014 China-Ireland International Conference on Information and Communi

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Abstract-a method of estimating force using an accelerometer is presented. This model is based on estimating the resultant acceleration of a body at its centre of mass using a triaxial accelerometer. A data set of ground reaction forces are gathered using a force platform, which is used as the control for this experiment. Signal processing techniques for resampling the accelerometer signals, along with a method of cross correlation to align the force platform and accelerometer traces are used. The purpose of this study was to compare force calculated using accelerometer data from the SHIMMER device, with force platform data on counter movement and drop jumps, for use in sports biomechanics. The method was validated using twelve physically active adults who performed 5 counter movement jumps and 5 drop jumps from a height of 0.30 m. An accelerometer was attached near the participant's centre of mass and simultaneous force and acceleration data were obtained for the jumps.Minimum eccentric force and peak concentric force were calculated concurrently for countermovement jumps and peak landing forces were calculated concurrently for drop jumps. The results showed moderate to low levels of agreement in forces and a consistent systematic bias between the results from the force platform and accelerometer. However, good agreement between the accelerometer and force platform was observed during the eccentric phase of the countermovement jump.

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“…In particular, physical motion, which is a fundamental aspect for categorizing person's current health and activity, can be detected and recorded by using wearable accelerometer-based systems [7,8]. Their recent "disruptive impact" is mainly due to their small size, low-invasiveness and intuitiveness, relatively low cost, and easy integration with existing platforms for sensor networks.…”

Section: Introductionmentioning

confidence: 99%

HuMOVE: A Low-invasive Wearable Monitoring Platform in Sexual Medicine

Ciuti

Nardi

Valdastri

et al. 2014

Urology

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Number of tables: 1Keywords: Accelerometer-based platform; activities of daily living; human sexual performance evaluator; sexual assessment monitor; wearable inertial device; premature and delayed ejaculation. Methods: Design, implementation and development of HU-MOVE, a wearable platform equipped with an accelerometer sensor for monitoring inertial parameters for sexual performance assessment and diagnosis. The system enables quantitative measurement of movement parameters during sexual intercourse, meeting the requirements of wearability, data storage, sampling rate and interfacing methods, which are fundamental for human sexual intercourse performance analysis. HU-MOVE was validated through characterization on a controlled experimental test bench and tested in human model in simulated sexual intercourse conditions.Results: HU-MOVE demonstrated to be a robust and quantitative monitoring platform and a reliable candidate for sexual performance evaluation and diagnosis. Characterization analysis on the controlled experimental test bench demonstrated an accurate correlation between the HU-MOVE system and a reference displacement sensor data. Experimental test in human model in simulated intercourse condition confirmed the accuracy of the sexual performance evaluation platform and the effectiveness of the selected and derived parameters. The obtained outcomes also established the project expectations in terms of usability and comfort, highlighted by the questionnaires that pointed out the low-invasiveness and acceptance of the device. Conclusions:To the best of our knowledge, HU-MOVE platform is the first device for human sexual performance analysis compatible with the sexual intercourse; the system has 4 the potentiality to represent a helpful tool for physicians to accurately classify sexual disorders, e.g. premature or delayed ejaculation. IntroductionOver the past few decades the increased level of awareness within health and physical fitness communities has created an emerging need for smart applications and comfortable/wearable devices that sense, classify, and provide feedback to users' activities of daily living in a pervasive fashion [1][2][3][4][5][6]. In particular, physical motion, which is a fundamental aspect for categorizing person's current health and activity, can be detected and recorded by using wearable accelerometer-based systems [7,8]. Their recent "disruptive impact" is mainly due to their small size, low-invasiveness and intuitiveness, relatively low cost, and easy integration with existing platforms for sensor networks. They are also able to effectively provide indicative features of human movement corresponding to frequency and intensity of motion, which is important to assess, for instance, static posture characteristicsAn important field that may benefit from the use of a wearable monitoring inertial device is the sexual medicine, due to its consistent impact and influence on human life quality and HU-MOVE is intended for SI use by a male human operator and ensures compatibility and mi...

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Direct measurement of human movement by accelerometry

Cited by 476 publications

References 121 publications

Evaluation of the neuromuscular compartments in the peroneus longus muscle through electrical stimulation and accelerometry

Evaluation of the neuromuscular compartments in the peroneus longus muscle through electrical stimulation and accelerometry

Estimation of force during vertical jumps using body fixed accelerometers

HuMOVE: A Low-invasive Wearable Monitoring Platform in Sexual Medicine

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