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Tesi sul tema "Accelerometry"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Nilsson, Andreas. "Physical activity assessed by accelerometry in children." Doctoral thesis, Örebro : Örebro University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-1739.

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2

Machado, Inês Prata. "Human activity data discovery based on accelerometry." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10992.

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3

Stoltz, Victor, and Manne Godhe. "Validity of accelerometry in high-intensity complex movements." Thesis, Gymnastik- och idrottshögskolan, GIH, Institutionen för idrotts- och hälsovetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-3268.

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Abstract Aim The aim of the study was to examine the capability of accelerometers to estimate energy expenditure during high-intensity complex physical activity patterns. Also, to investigate whether placing the monitor on the hip or wrist influenced its prediction ability. Furthermore, the purpose was also to evaluate if there was a significant difference in the aforementioned estimations using data from one axis compared to all three axis combined. Method A total of 14 subjects, eight men and six women, mean (SD) age of 26, 4 (5,5) years were recruited for the study. The participants pe

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4

Gerrard-Longworth, S. P. "Measuring physical activity in obese populations using accelerometry." Thesis, University of Salford, 2015. http://usir.salford.ac.uk/34502/.

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The thesis is concerned with objectively measuring human physical activity through accelerometry, and compares the effectiveness of algorithms between obese and non-obese groups. The thesis comprises three studies: Classification of Aerobic and Gym-based Exercises from Accelerometer Output. This study investigated whether accurate classification could be achieved from hip- or ankle-mounted accelerometers for a programme of aerobic exercises and free-living activities. It also examined whether accuracy was affected by obesity, and whether a single classifier could be applied across BMI groups.

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5

Wilhelm, Spencer Christian. "Prediction of Non-Resting Energy Expenditure using Accelerometry." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/91463.

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The accurate measurement of total energy expenditure is a cornerstone of metabolic research. However, there is a lack of measurement methods that are valid, objective, inexpensive, and easy to use. Accelerometry, along with validated prediction equations for resting energy requirements, may provide an opportunity to fill this void. Twenty weight stable adults (12 female, 8 male) who recently participated in a controlled feeding study comprised the study sample. Total energy requirements were assessed from the controlled feeding period in which weight stability was achieved using the intake

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6

São, Marcos Ana Jorge Romão. "Physical activity measurements in adolescents: accelerometry vs PAI." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13732.

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Mestrado em Fisioterapia<br>Background: Practicing physical activity (PA) has shown to present health benefits at all ages, namely in paediatrics. There are several methods to evaluate PA, however the most frequently used are the self-report questionnaires and accelerometry. The latter is an objective measuring tool, however it requires the use of relatively expensive devices. Questionnaires are easy and quick to apply, and therefore a useful tool to evaluate PA. Despite the existence of some questionnaires to evaluate PA in adolescents, there is still none validated against accelerometr

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7

van, Hees Vincent Theodoor. "Implementation of raw accelerometry in physical activity epidemiology." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610767.

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8

Sato, Kimitake, William A. Sands, and Michael H. Stone. "The Reliability of Accelerometry to Measure Weightlifting Performance." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/etsu-works/4616.

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The purposes of the study were to track weightlifters' barbell acceleration with a portable accelerometer over three training sessions to examine test–retest reliability and to compare peak barbell acceleration at different training intensities. Twelve nationally ranked weightlifters volunteered for this study. The portable accelerometer was attached to the right side of the barbell to measure barbell resultant acceleration during the snatch lift at a sampling frequency of 100 Hz. The data were collected over three training sessions at intensity levels of 80%, 85%, and 90% of one repetition ma

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9

Siebert, Christopher Michael. "Heart Rate and Accelerometry during Footbag Net Singles Play." Portland State University, 2013.

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10

Kotru, Krish. "Timekeeping and accelerometry with robust light pulse atom interferometers." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98681.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 165-173).<br>Light pulse atom interferometry (LPAI) is a powerful technique for precision measurements of inertial forces and time. Laboratory LPAI systems currently achieve state-ofthe- art acceleration sensitivity and establish the international atomic time standard. However, the realization of practical LPAI in dynamic environments (e.g., rapidly accelerating or rotating platforms) has been limited in

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11

Bursais, Abdulmalek. "Accelerometry and Global Navigation Satellite Systems Derived Training Loads." Digital Commons @ East Tennessee State University, 2021. https://dc.etsu.edu/etd/3939.

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The objectives of this dissertation include 1) to review accelerometry and Global Navigation Satellite System (GNSS) derived measures used to monitor training load, 2) to investigate the validity and reliability of accelerometers (ACCs) to identify stepping events and quantify training load, 3) to assess the relationship between accelerometry and Global Navigation Satellite Systems (GNSS) derived measures in quantifying training load. In Study I, acceleration data was collected via two tri-axial ACC (Device A and Device B) sampling at 100Hz mounted closely together at the xiphoid process level

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12

Miwa, Masafumi. "Estimation of energy expenditure of grazing ruminants via accelerometry." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225658.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第20433号<br>農博第2218号<br>新制||農||1048(附属図書館)<br>学位論文||H29||N5054(農学部図書室)<br>京都大学大学院農学研究科応用生物科学専攻<br>(主査)教授廣岡博之, 教授久米新一, 教授今井裕<br>学位規則第4条第1項該当

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13

Siebert, Christopher Michael. "Heart Rate and Accelerometry during Singles Footbag Net Play." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/650.

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This investigation examined the heart rate responses and movement characteristics of experienced footbag net players during singles play. Footbag net is a net/court sport similar to volleyball, but it is played with a footbag (e.g., Hacky-SackTM) using only the feet. In singles footbag net, players are allowed either one or two kicks to propel the footbag over the net. Subjects were 15 males and 1 female, ranging in age from 18- 60 years, with a mean age of 33.6 years. Subjects played two games of singles footbag net using two different scoring systems: "sideout" scoring and "rally" scoring. M

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14

Mathie, Merryn Joy Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Monitoring and interpreting human movement patterns using a triaxial accelerometer." Awarded by:University of New South Wales. School of Electrical Engineering and Telecommunications, 2003. http://handle.unsw.edu.au/1959.4/27386.

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This thesis addresses the hypothesis that a single, waist-mounted triaxial accelerometer (TA) can be used to monitor human movement patterns in unsupervised, freeliving subjects over extended periods, and that it can be used to quantitatively measure parameters that can provide clinical insight into the health status of the subject. A rigorous theoretical and experimental understanding of the signals obtained from a TA is developed. The effect of the placement of the TA device on the waist is explored and a model relating device position to TA signal is developed for a range of postures and ac

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15

Kovaleski, Joao Luiz. "Etude, modélisation et réalisation de capteurs d'accélération et force à base de polymère piézoélectrique PVF2." Grenoble 1, 1992. http://www.theses.fr/1992GRE10122.

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Le pvf2 s'avere bien adapte chaque fois que l'une ou moins de ses proprietes intrinseques est exploitee. En vue de la realisation de capteurs accelerometriques, nous avons etudie les proprietes du pvf2 et nous avons analyse le comportement d'une lame de pvf2 soumise a une contrainte de compression. Nous avons developpe des modeles electriques du pvf2 qui nous permettent d'effectuer des simulations a l'aide du logiciel spice. Ces modeles nous ont permis de definir les caracteristiques theoriques de nos capteurs que nous avons pu correler avec les resultats experimentaux. A la suite de ces etude

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16

Horner, Fleur. "Use of accelerometry to predict energy expenditure in military tasks." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558908.

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The overarching aim of this thesis was to enhance the prediction of physical activity energy expenditure (PAEE) in military personnel; specifically, improving accuracy and minimising obtrusiveness. The first experimental chapter provided a thorough assessment of the reliability and validity of the 3DNX accelerometer. Within unit reliability (CVintra) physical activity counts (PAC) was 0.0-8.9% in all axes in a mechanical setting. Between unit reliability (CVinter) did not exceed 4.5%.The relationship between PAC and acceleration was r2 = 0.99 and standard error of the estimate (SEE) of 6 count

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17

Nedergaard, N. J. "Whole-body biomechanical load monitoring from accelerometry in team sports." Thesis, Liverpool John Moores University, 2017. http://researchonline.ljmu.ac.uk/5469/.

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Contemporary research into training load in team sports primarily focusses on the physiological load demands, whereas the biomechanical load still remains largely unexplored. While the former refers to the work-energy relationship when the players move around the pitch, the latter refers to the external forces the players are exposed to from their movements around the pitch. Monitoring of the biomechanical load helps practitioners estimate the stresses on an athlete’s musculoskeletal structures as a consequence of the external forces acting on their body. Monitoring of the biomechanical load i

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18

Nwanna, Obinna. "Validation of an Accelerometry Based Method of Human Gait Analysis." Cleveland State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=csu1400424346.

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19

Kangas, M. (Maarit). "Development of accelerometry-based fall detection:from laboratory environment to real life." Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514296857.

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Abstract About one third of home-dwelling older people suffer a fall ech year. The most consuming falls occur when the person is alone and unable to get up, resulting in long lies which are associated with institutionalisation and high morbidity-mortality rate. Even though personal emergency response systems provide applications to call for help, older people are not always able or willing to activate them. Hence, an automatic fall detection system is an important setting. Even though pilot applications and commercial fall detection systems exist, the real-life validation of these systems is s

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20

Thompson, Blair F. "Spaceborne accelerometry and temporal gravity analysis from the CHAMP satellite mission." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/dissertations/fullcit/3186939.

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21

Collins, Philip. "The movement ecology of a breeding seabird : an investigation using accelerometry." Thesis, University of Roehampton, 2018. https://pure.roehampton.ac.uk/portal/en/studentthesis/The-movement-ecology-of-a-breeding-seabird(e36b8ee9-9f13-498e-93bd-6546910d9ce5).html.

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Animal movement is a ubiquitous process and can have consequences ranging from an individual’s energy expenditure to ecosystem dynamics. This study uses biologgers, primarily accelerometers, to record and examine the at-sea behaviours of black-legged kittiwakes (Rissa tridactyla) during their breeding period. Accelerometers record the acceleration of an instrumented animal to give an indication of their behaviour and movements, yet their output can be particularly difficult to interpret. As such, this thesis begins with a method developed for the assignation of coarse-scale behaviours to accel

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22

Wang, Ning. "Energy efficiency and classification accuracy trade-offs in accelerometry-based activity recognition." Thesis, University of Southampton, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.586895.

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Driven by growing real-world application 'such as healthcare challenges, accelerometry-based activity recognition has been widely studied as a potential context-aware subsystem for the future pervasive healthcare system. Reliable, accurate recognition and energy efficiency to enable long-term and non-intrusiveness activity monitoring are the key issues for practical use in healthcare applications. A great number of activity recognition systems have been proposed focusing on sensor node design and recognition algorithm development to achieve good classification performance, while the trade-offs

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23

Hislop, Jane. "Accelerometry measurement of physical activity and sedentary behaviour in pre-school children." Thesis, Queen Margaret University, 2013. https://eresearch.qmu.ac.uk/handle/20.500.12289/7414.

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This thesis is based on six studies which address questions around the use of accelerometers to measure physical activity and sedentary behaviour of pre-school children: are shorter epochs more accurate? Which epochs are most accurate? Are there advantages to using triaxial accelerometers? Which cut-points are most accurate? Are different generations of Actigraph accelerometers comparable? What is the recommended wear time to provide a reliable estimate of habitual physical activity and sedentary behaviour? Analysis of 7-10 day accelerometry data, collected from 31 pre-school children (mean (S

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Santos, Lilian Utraga dos. "Análise biomecânica do andamento em potros da raça mangalarga marchador nos primeiros 15 dias de vida." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/152534.

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Submitted by Lilian Utraga dos Santos null (lilianutraga@hotmail.com) on 2018-01-18T19:40:00Z No. of bitstreams: 1 Dissertação de Mestrado enviar 18 jan 18.pdf: 1158643 bytes, checksum: 2b9d0ef4e468d0806d38ac2d5213a3e5 (MD5)<br>Approved for entry into archive by Isabel Pereira de Matos null (isabel@fmva.unesp.br) on 2018-01-18T20:02:45Z (GMT) No. of bitstreams: 1 santos_lu_me_araca_int.pdf: 1158643 bytes, checksum: 2b9d0ef4e468d0806d38ac2d5213a3e5 (MD5)<br>Made available in DSpace on 2018-01-18T20:02:45Z (GMT). No. of bitstreams: 1 santos_lu_me_araca_int.pdf: 1158643 bytes, checksum: 2b9d0

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Abbott, John, Paul Moquin, Abdulmalek Bursais, Julia Kirkpatrick, Christine L. Coniglio, and Jeremy A. Gentles. "The Relationship Between Accelerometry Derived Training Loads and sRPE In Women’s College Soccer." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/5834.

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Saba, David Joseph. "Validation of Running Symmetry Using Trunk Mounted Accelerometry: Clinical Trial and Case Study." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/73307.

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Trunk-mounted monitoring equipment like GPSports SPIHPU units are designed to use global positioning (GPS), accelerometer and heart rate monitoring to evaluate the physical demands of an activity. A medical staff might also consider markers such as running symmetry in evaluation of injury occurrence and rehabilitation. A running symmetry is a ratio of the synchronization of the right and left lower limbs during the gait cycle. An asymmetry due to, a pathology or musculoskeletal injury, results in abnormal loading on the foot that may be detected by trunk-mounted accelerometry. The aim of this

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27

Warren, Victoria E. "Associations of Subjective vs. Objective Physical Activity Level Related to Medication Use In Older Adults." Miami University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=miami1545241669055766.

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Arcidiacono, Steven. "Predicting Cardiovascular Fitness in Ethnic Minority Youth: A Comparison of Demographic, Body Composition, and Physical Activity Variables." Diss., NSUWorks, 2017. https://nsuworks.nova.edu/cps_stuetd/112.

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Prevalence of obesity, low physical activity, and poor physical fitness of youth in the United States are increasingly poor and in need of intervention to prevent later concerns like hypertension. The overall goal of this dissertation was to examine which factors weigh heaviest in predicting cardiovascular fitness in diverse youth, and how we might measure those factors by maximizing clinical utility and psychometric properties. The sample was gathered from a larger study examining physical activity in youth from Miami-Dade county enrolled in out-of-school programs. Participants (N = 58) were

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29

Harrington, Marian. "Accelerometry for the computer recognition of arm gestures of people with impaired limb control." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339378.

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30

Coniglio, Christine L., Kyle Travis, and Jeremy A. Gentles. "The Relationship Between Accelerometry and Total Distance Measured With GPS in Women’s College Soccer." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/5833.

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31

Behardien, Thulfieq. "The physical activity status and patterns in adults with Cerebral Palsy - an accelerometry study." Master's thesis, Faculty of Health Sciences, 2019. https://hdl.handle.net/11427/31784.

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One of the most common causes of physical disability acquired during childhood is cerebral palsy (CP). Due to improvements in medical care over the past decades, almost all children with CP survive into adulthood nowadays. In addition, based on a stable incidence rate and longevity of individuals with CP, currently most persons with CP are adults. Therefore, it is appropriate to draw awareness to focus on rehabilitation in adults with CP. Due to the nature of their physical disability, adults with CP are at risk to an inactive lifestyle, which can lead to increased health risks. Physical inact

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Babineau, Olivier. "Using accelerometry to evaluate physical activity and sedentary behaviour patterns in bariatric surgery patients." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119678.

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Background Sedentarism or prolonged sitting time is an emerging risk factor for obesity, independent of physical activity (PA). Bariatric surgery seems to be most effective form of treatment that works for severely obese individuals (Body Mass Index (BMI) of >40 kg/m2). Objectives The purpose of this investigation was to characterize with the use of accelerometers, daily steps/day and sedentary behavior (SB) by measuring time-spent sitting/lying in severely obese patients before and after bariatric surgery. Setting McGill University Health Center (MUHC). Methods Seventeen patients (58.5% of th

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Lepisk, Paul, and Anna-Maria Furu. "Hyper(in)aktiv? : En studie om sambandet mellan fysisk aktivitet och motorisk förmåga hos barn med ADHD." Thesis, Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-1110.

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<p>Syfte</p><p>Syftet med studien är att undersöka om det finns ett samband mellan motorisk färdighet ochmängd fysisk aktivitet av olika intensiteter hos barn med diagnosen ADHD.</p><p>Frågeställningar</p><p>1. Hur många barn med ADHD har motoriska nedsättningar utifrån Movement ABC?</p><p>2. Hur många barn med ADHD når upp till de Nordiska rekommendationerna för fysiskaktivitet?</p><p>3. Hur ser sambandet mellan motorisk färdighet och fysisk aktivitetsnivå ut hos barn medADHD?</p><p>Metod</p><p>I studien ingick fem pojkar i åldern 9-12 år med diagnosen ADHD. I studien mättes denfysiska aktivi

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34

Karlsson, Jenny. "Fysiska aktivitetsmönstret hos äldre, mätt med accelerometri före och i slutet av en två månaders träningsperiod." Thesis, Gymnastik- och idrottshögskolan, GIH, Institutionen för idrotts- och hälsovetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-3398.

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Syfte. Syftet med studien var att med accelerometri kartlägga det fysiska aktivitetsmönstret hos äldre vid två separata förtest och i slutet av en tvåmånadersperiod med ledarledd träning två gånger per vecka. En vidare målsättning var att studera överensstämmelsen mellan enkätfrågorna om fysisk aktivitet och stillasittande gentemot uppmätt accelerometerdata. Metod. En grupp 65-91 år (medel 71 år, BMI 25 kg/m2) studerades. Två förtest (F1 & F2) samt ett eftertest (E) utfördes under sista träningsveckan. Totalt ingick 97 individer vid F1 & F2 samt 78 vid E som jämfördes mot resultat vi

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Brage, Søren. "Objective monitoring of physical activity in the epidemiological setting using accelerometry and heart rate monitoring." Thesis, University of Cambridge, 2006. https://www.repository.cam.ac.uk/handle/1810/252018.

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McGarty, Arlene Marie. "Understanding and validating accelerometry as a measure of physical activity in children with intellectual disabilities." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/7340/.

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Background Physical activity in children with intellectual disabilities is a neglected area of study, which is most apparent in relation to physical activity measurement research. Although objective measures, specifically accelerometers, are widely used in research involving children with intellectual disabilities, existing research is based on measurement methods and data interpretation techniques generalised from typically developing children. However, due to physiological and biomechanical differences between these populations, questions have been raised in the existing literature on the va

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De, Saint-Maurice Pedro. "Validation of the SOPLAY direct observation tool with an objective accelerometry-based physical activity monitor." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1468076.

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Norris, Courtney E. "Testing the efficacy of unsupervised machine learning techniques to infer shark behaviour from accelerometry data." Thesis, Norris, Courtney E. (2019) Testing the efficacy of unsupervised machine learning techniques to infer shark behaviour from accelerometry data. Honours thesis, Murdoch University, 2019. https://researchrepository.murdoch.edu.au/id/eprint/50648/.

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Biologging is becoming a powerful tool in the study of free-ranging animal behaviour. Accelerometers play an important role particularly for cryptic aquatic species by facilitating the measurement of animal body movement and thus, behaviour. However, our ability to collect large and complex data sets is surpassing our ability to analyse them, prompting a need to develop methodologies for automated behavioural classification. Unsupervised machine learning is particularly useful for behavioural classification where direct observations to link patterns of acceleration to animal behaviour are not

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Stamm, Andy. "Velocity and Arm Symmetry in Freestyle Swimming using Accelerometry: Data Collection, Analysis and Feature Extraction." Thesis, Griffith University, 2013. http://hdl.handle.net/10072/365340.

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This research quantified the velocity during the swimming phase and investigated the arm symmetry using a single triaxial accelerometer in freestyle swimming. This included the data collection, analysis and feature extraction of parameters of interest. A main question related to the collection of acceleration data from several athletes in the discipline of swimming under training conditions. This involved developing and testing of suitable sensor technology for tracking the movement of the swimmer. Furthermore, after the first data was collected, more elementary questions evolved: Which data i

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Jehn, Melissa Luise [Verfasser]. "Assessment of functional status in patients with cardiorespiratory disease using tele-accelerometry / Melissa Luise Jehn." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2017. http://d-nb.info/1136608737/34.

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Powell, Sarah Maley. "The relationship of bone density and physical activity, assessed by pedometry and accelerometry, in children." Thesis, Bangor University, 2004. https://research.bangor.ac.uk/portal/en/theses/the-relationship-of-bone-density-and-physical-activity-assessed-by-pedometry-and-accelerometry-in-children(8b5582e8-e4d5-4fe6-8b67-d0814117e68c).html.

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This thesis includes one qualitative literature review and five empirical studies examining aspects of a) the relationship between bone mass and physical activity in children aged 8-11 years using pedometry and accelerometry, and b) the variability and reliability of the RT3 accelerometer as a means of assessing physical activity patterns in children. Previous research has shown a positive relationship between physical activity and bone mineral density in children. However, study design appears to be confounded by the accuracy of measures of physical activity limiting conclusions that can be d

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FERRARI, SIMONE. "Lagrangian acceleration measurements via PTVA (Particle Tracking Velocimetry and Accelerometry) on a turbulent-like flow." Doctoral thesis, Università degli Studi di Cagliari, 2007. http://hdl.handle.net/11584/265945.

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Quasi-two-dimensional turbulence (Q2D) has both a practical and theoretical relevance. Following the topological approach, turbulent-like flows have the aim to model and study some of the aspects of turbulence. With this target, in the laboratory of the Imperial College London, Q2D electromagnetically-controlled multiple-scale flows are experimentally studied. To study those flows, an accurate Lagrangian technique to measure acceleration is needed: a novel technique, Particle Tracking Velocimetry and Accelerometry (PTVA), based on Image Analysis techniques, has been designed, developed and val

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Phillips, Lisa Rachel Stephanie. "The relationship between psychological well-being and physical activity : the impact of measurement." Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/12106.

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Psychological well-being occurs when there is an absence of mental disorders and presence of positive states. Given the increasing prevalence of mental disorders, which are thought to have their roots in childhood, improving psychological well-being in children is currently an important area of research. Physical activity has been proposed as a method by which negative states can be reduced and positive states increased, thereby increasing children’s overall psychological well-being and in turn helping to protect against a decline into clinical disorders. Research focusing on physical activity

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44

Horsley, B. "The Use of Triaxial Accelerometry for Measuring Stride Parameters and Vertical Stiffness in Team-Sport Athletes." Phd thesis, Australian Catholic University, 2024. https://acuresearchbank.acu.edu.au/download/671dc65e687fb9000b1fce6e0c2ee18bf846bee22a3e42e64ffae23b2c43f89d/5366624/Horsley_2024_The_Use_of_Triaxial_Accelerometry_for%5BREDACTED%5D.pdf.

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Inertial Measurement Units (IMUs) provide a means for analysing running gait in the field without the need for extensive lab-based equipment. These sensors have been validated for use on the lower limbs and lumbosacral region but have not been extensively validated at other body regions. In team-sport, athletes commonly wear global navigation satellite system (GNSS) units on the thoracic spine to quantify distance and speed. These GNSS units also contain IMUs which may allow the measurement of running gait characteristics, such as contact time, step length and vertical stiffness (Kvert), that

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45

Tyson, Elizabeth Jane. "Combining the use of accelerometry and GPS to measure free-flight performance in homing pigeons (Columbia livia)." Thesis, Bangor University, 2013. https://research.bangor.ac.uk/portal/en/theses/combining-the-use-of-accelerometry-and-gps-to-measure-freeflight-performance-in-homing-pigeons-columbia-livia(328c557e-513b-485f-89bd-903954ba637b).html.

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46

Cooperstein, Elaine Constance. "Physical activity levels of urban and rural young children in the Iowa Bone Development Study." Thesis, University of Iowa, 2009. https://ir.uiowa.edu/etd/349.

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A better understanding of the association of the environment to young children's physical activity is needed to design effective behavioral interventions and to improve communities' infrastructures in ways that support the development of healthy behaviors. This thesis used data from the Iowa Bone Development Study (IBDS) to examine activity behaviors of young children in urban and rural Iowa. Mean daily minutes of moderate through vigorous physical activity (MVPA) and vigorous physical activity (VPA), as recorded by accelerometry-based physical activity monitoring in the IBDS, were compared by

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Orme, Mark W. "Physical activity and sedentary behaviour across the spectrum of chronic obstructive pulmonary disease." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/25248.

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Chronic obstructive pulmonary disease (COPD) patients are generally more sedentary and less physically active than healthy adults; putting them at increased risk of hospitalisation and death. For patients with mild-moderate COPD, physical activity appears to be reduced compared with apparently healthy adults but differences in time spent sedentary are less well established. Additionally, there is a need for a greater understanding of the correlates of behaviour in mild-moderate patients with much of the existing literature focusing on more severe or mixed stage patient samples and with many st

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Zhao, Dongning. "A low-noise CMOS interface for capacitive microaccelerometers." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31715.

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The high-performance accelerometers with micro-gravity resolution and large dynamic range at very low frequencies are not only used in GPS-augmented inertial navigation, monitoring of aircrafts and space station, but also used in monitoring wind turbines for green energy. This dissertation presents the design and development of a mixed-signal, low-noise, and fourth-order sigma-delta interface circuit for the MEMS capacitive micro-gravity accelerometer. A fully-differential switched-capacitor (SC) amplifier architecture is developed with the low-frequency noise reduction through the integration

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Loss, Daiene Elisa. "Uso do acelerômetro como método de mensuração de níveis de atividade física em equinos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/181349.

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A monitoração objetiva da atividade física traz grandes benefícios para a medicina veterinária, tanto em animais de estimação quanto de produção, por ser considerada um indicador de saúde e bem-estar animal. Conhecer o padrão natural de movimentação dos animais traz a possibilidade de correlacionar processos como dor ou estresse com uma eventual mudança de comportamento. Atualmente, os acelerômetros estão sendo amplamente utilizados para monitorar a atividade física de maneira objetiva, pois são dispositivos eletrônicos pequenos que permitem quantificar a frequência, duração e intensidade da a

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Williamson, Megan L. "THE DIFFERENCE IN PHYSICAL ACTIVITY LEVELS AND ATTENTION IN PRESCHOOL CHILDREN BEFORE AND AFTER FREE PLAY RECESS AND STRUCTURED PLAY RECESS." Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1365712511.

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