IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI) 2014
DOI: 10.1109/bhi.2014.6864451
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Monitoring physical activity and energy expenditure with smartphones

Abstract: Monitoring physical activity and energy expenditure is important for maintaining adequate activity levels with an impact in health and well-being. This paper presents a smartphone based method for classification of inactive postures and physical activities including the calculation of energy expenditure. The implemented solution considers two different positions for the smartphone, the user's pocket or belt. The signal from the accelerometer embedded in the smartphone is used to classify the activities resorti… Show more

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Cited by 35 publications
(26 citation statements)
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“…In [39], the authors implemented a decision tree classifier with several features, such as mean, median, maximum, minimum, RMS, standard deviation, median deviation, interquartile range, energy, entropy, skewness, and kurtosis of the accelerometer data, for the recognition of running, walking, standing, sitting, and laying activities with a reported accuracy of 99.5%.…”
Section: Related Workmentioning
confidence: 99%
See 1 more Smart Citation
“…In [39], the authors implemented a decision tree classifier with several features, such as mean, median, maximum, minimum, RMS, standard deviation, median deviation, interquartile range, energy, entropy, skewness, and kurtosis of the accelerometer data, for the recognition of running, walking, standing, sitting, and laying activities with a reported accuracy of 99.5%.…”
Section: Related Workmentioning
confidence: 99%
“…With the Bayesian Network, the maximum accuracy reported by the authors is 95.62%; with the Naïve Bayes, the maximum accuracy reported is 97.81%; with the KNN, the maximum accuracy reported is 99.27%; and with the rule based learner, the maximum accuracy reported is 93.53%.Another study [35] presents a solution to recognize walking, jogging, cycling, going up stairs, and going down stairs, implementing a decision tree and a probabilistic neural network (PNN) with some features, such as average of the acceleration, standard deviation for each axis, binned distribution for each axis, and average energy for each axis, reporting results with an average accuracy of 98% with the use of accelerometer.The authors of [36] extracted some features, such as mean, standard deviation, and variance of the accelerometer signal, and implemented the KNN, decision tree, rule-based and MLP methods to recognize walking, sitting, standing, going up stairs and going down stairs activities, verifying that MLP has an accuracy up to 80%.In [37], the authors used the mean, standard deviation, correlation, mean absolute value, standard deviation absolute value, and power spectral density of the accelerometer data, in the Naïve Bayes, KNN, Decision Tree, and SVM methods for the recognition of walking, cycling, running, and standing activities, reporting an accuracy higher than 95%.The authors of [38] implement a method based on the peak values of the accelerometer signal, extraction some features, including the number of peaks every 2 seconds, the number of troughs every 2 seconds, the difference between the maximum peak and the minimum trough every 2 seconds, and the sum of all peaks and troughs, in order to recognize walking, jogging, and marching activities. They implemented the J48 decision tree, bagging, decision table, and Naïve Bayes methods, reporting an accuracy of 94% [38].In [39], the authors implemented a decision tree classifier with several features, such as mean, median, maximum, minimum, RMS, standard deviation, median deviation, interquartile range, energy, entropy, skewness, and kurtosis of the accelerometer data, for the recognition of running, walking, standing, sitting, and laying activities with a reported accuracy of 99.5%.In [40], the authors implemented a SVM method with several features, such as RMS, variance, correlation and energy of the accelerometer data, for the recognition of walking, running, cycling, and hopping with a reported average accuracy of 97.69%.The authors of [41] implemented an ANN with mean, standard deviation, and percentiles of the magnitude of the accelerometer data as features, with a reported accuracy of 92% in the recognition of standing, walking, running, going up stairs, going down stairs, and running.In addition, the authors of [42] implemented an ANN with some features, such as mean, maximum, minimum, difference between maximum and minimum, standard deviation, RMS, Parseval's Energy, correlation between axis, kurtosis, skewness, ratio of the maximum and minimum values in the FFT, difference between the maximum and minimum values in the FFT, median of peaks, median of troughs, number of peaks, number of troughs, average distance between two consecutive peaks, average distance between two consecutive troughs, and ratio of the average values of peaks and troughs based on a window of the accelerometer data. The activities recognized by the method are resting, walking, cycling, jogging, running, and driving [42], r...…”
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confidence: 99%
“…The volunteer was asked to travel the highlighted trajectory with multiple smartphone mode changes. 1 According to equation (13).…”
Section: Experimental Results Of Walking Distancementioning
confidence: 99%
“…Most visible light positioning [5,6], Wi-Fi positioning [7][8][9], and magnetic positioning [10][11][12] critically depend on PDR. Hence, motion level estimation based on smartphones contributes to assisting and supporting patients undergoing health rehabilitation and treatment, activity monitoring of daily living, navigation, and numerous other applications [13].…”
Section: Introductionmentioning
confidence: 99%
“…Medical Diagnosis and Study of Biomedical Imaging Systems and Applications combinations of upper trunk motion features that lead to those leaves, and the leaves represent physical activity classes[15].…”
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confidence: 99%