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https://www.readbyqxmd.com/read/28812453/ergonomic-evaluation-of-a-new-truck-seat-design-a-field-study
#1
Michelle Cardoso, Fred Fulton, Colin McKinnon, Jack P Callaghan, Michel J Johnson, Wayne J Albert
A postural evaluation of commercial licensed truck drivers was conducted to determine the ergonomic benefits of a truck seat prototype in comparison to an Industry standard seat. Twenty commercially licensed truck drivers were recruited to perform a 90-min driving task. Postures were assessed using accelerometers and a backrest and seat pan pressure mapping system. Subjective discomfort measurements were monitored using two questionnaires: ratings of perceived discomfort (RPD) and the automotive seating discomfort questionnaire (ASDQ)...
August 16, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28811737/learning-and-developing-individual-exercise-skills-l-a-d-i-e-s-for-a-better-life-a-church-based-physical-activity-intervention-baseline-participant-characteristics
#2
Melicia C Whitt-Glover, Moses V Goldmon, Ziya Gizlice, Daniel P Heil, Njeri Karanja
OBJECTIVE: Physical activity (PA) is beneficial for health, yet most African American women do not achieve recommended levels. Successful, sustainable strategies could help to address disparities in health outcomes associated with low levels of PA. The Learning and Developing Individual Exercise Skills (L.A.D.I.E.S.) for a Better Life study compared a faith-based and a secular intervention for increasing PA with a self-guided control group. DESIGN SETTING AND PARTICIPANTS: This cluster randomized, controlled trial was conducted from 2010 - 2011 in African American churches (n=31) in suburban North Carolina...
2017: Ethnicity & Disease
https://www.readbyqxmd.com/read/28811317/sleep-duration-and-risk-of-type-2-diabetes
#3
Alicja R Rudnicka, Claire M Nightingale, Angela S Donin, Naveed Sattar, Derek G Cook, Peter H Whincup, Christopher G Owen
BACKGROUND: Associations between sleep duration and type 2 diabetes (T2D) risk markers in childhood have been little studied. We examined associations between self-reported sleep duration and T2D risk markers in children. METHODS: Cross-sectional study of 4525 multiethnic UK children aged 9 to 10 years. Sleep time was calculated from self-reported usual time of going to bed and getting up on a school day, validated in a subset using accelerometers. Fasting blood samples provided levels of serum lipids and insulin, plasma glucose, and HbA1c...
August 15, 2017: Pediatrics
https://www.readbyqxmd.com/read/28810450/perceived-somatic-and-affective-barriers-for-self-efficacy-and-physical-activity
#4
Lisa M Warner, Julia K Wolff, Svenja M Spuling, Susanne Wurm
According to Bandura's social-cognitive theory, perceptions of somatic and affective barriers are sources of self-efficacy. This longitudinal study compares general indicators of health barriers with measures of perceived somatic and affective barriers to predict self-efficacy and accelerometer-assessed physical activity in a subsample of n = 153 (selected at random from N = 310) community-dwelling German older adults. Perceived somatic and affective barriers longitudinally predicted physical activity mediated by self-efficacy, whereas general health barriers did not...
May 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28810402/physical-activity-intensity-and-subjective-well-being-in-healthy-adults
#5
Gregory A Panza, Beth A Taylor, Paul D Thompson, C Michael White, Linda S Pescatello
The effect of physical activity intensity on subjective well-being has not been well established. We examined this relationship among 419 healthy adults using objective and subjective physical activity measurements (sample size varied among well-being assessments). For accelerometers, light-intensity physical activity positively associated with psychological well-being ( n = 150) and negatively associated with depression ( n = 99); moderate intensity negatively associated with pain severity ( n = 419) and positively associated with psychological well-being; sedentary behavior negatively associated with psychological well-being and positively associated with depression ( ps < ...
February 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28810371/physical-activity-and-perceptions-of-stress-during-the-menopause-transition-a-longitudinal-study
#6
Eva Guérin, Alyssa Biagé, Gary Goldfield, Denis Prud'homme
The transition to menopause is a critical period of significant biopsychosocial change. The purpose of this study was to examine the influence of the transition to menopause and volume of physical activity on levels of perceived stress over five years in 102 healthy middle-aged women. Questionnaire and accelerometer data were analyzed using linear mixed models. Adjusting for age and body mass index, there were no significant effects of menopause status or time on perceived stress. Independent of menopause status, minutes per week of vigorous activity was associated with lower perceived stress in years 1 and 2 of the study...
January 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28809669/muscle-activation-and-inertial-motion-data-for-non-invasive-classification-of-activities-of-daily-living
#7
Michael S Totty, Eric Wade
OBJECTIVE: Remote monitoring of physical activity using body-worn sensors provides an objective alternative to current functional assessment tools. The purpose of this study was to assess the feasibility of classifying categories of activities of daily living from the Functional Arm Activity Behavioral Observation System (FAABOS) using muscle activation and motion data. METHODS: Ten non-disabled, healthy adults were fitted with a Myo armband on the upper forearm...
August 10, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28807076/review-behavioral-signs-of-estrus-and-the-potential-of-fully-automated-systems-for-detection-of-estrus-in-dairy-cattle
#8
S Reith, S Hoy
Efficient detection of estrus is a permanent challenge for successful reproductive performance in dairy cattle. In this context, comprehensive knowledge of estrus-related behaviors is fundamental to achieve optimal estrus detection rates. This review was designed to identify the characteristics of behavioral estrus as a necessary basis for developing strategies and technologies to improve the reproductive management on dairy farms. The focus is on secondary symptoms of estrus (mounting, activity, aggressive and agonistic behaviors) which seem more indicative than standing behavior...
August 15, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28806930/factors-associated-with-change-in-objectively-measured-physical-activity-in-older-people-data-from-the-physical-activity-cohort-scotland-study
#9
Clare L Clarke, Falko F Sniehotta, Thenmalar Vadiveloo, Ishbel S Argo, Peter T Donnan, Marion E T McMurdo, Miles D Witham
BACKGROUND: Cross-sectional relationships between physical activity and health have been explored extensively, but less is known about how physical activity changes with time in older people. The aim of this study was to assess baseline predictors of how objectively measured physical activity changes with time in older people. METHODS: Longitudinal cohort study using data from the Physical Activity Cohort Scotland. A sample of community-dwelling older people aged 65 and over were recruited in 2009-2011, then followed up 2-3 years later...
August 14, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28806753/accelerometer-derived-physical-activity-and-sedentary-time-by-cancer-type-in-the-united-states
#10
Keith M Thraen-Borowski, Keith P Gennuso, Lisa Cadmus-Bertram
The 2003-2004 and 2005-2006 cycles of the National Health and Nutrition Examination Survey (NHANES) were among the first population-level studies to incorporate objectively measured physical activity and sedentary behavior, allowing for greater understanding of these behaviors. However, there has yet to be a comprehensive examination of these data in cancer survivors, including short- and long-term survivors of all cancer types. Therefore, the purpose of this analysis was to use these data to describe activity behaviors in short- and long-term cancer survivors of various types...
2017: PloS One
https://www.readbyqxmd.com/read/28806721/the-effect-of-visual-perturbation-upon-femoral-acceleration-during-the-single-and-bilateral-squat
#11
R Barry Dale, Ravi P Gollapalli, Taylor Price, Katie Megahee, Morgan Duncan, Nick Tolstick, Luke Ford
OBJECTIVES: Record femoral accelerations using a smartphone accelerometer attached to the distal thigh during single-legged (SLS) and bilateral squats, and each squat condition occurred under two visual conditions: 1) normal vision and 2) visual perturbation with stroboscopic glasses. DESIGN: Repeated-measures cross-over with counter-balanced order for four total conditions. SETTING: Laboratory. PARTICIPANTS: 22 females and 16 males without lower extremity pathologies...
June 20, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28805751/characterization-of-quadratic-nonlinearity-between-motion-artifact-and-acceleration-data-and-its-application-to-heartbeat-rate-estimation
#12
Sunho Kim, Sungbin Im, Taehyung Park
Accelerometers are applied to various applications to collect information about movements of other sensors deployed at diverse fields ranging from underwater area to human body. In this study, we try to characterize the nonlinear relationship between motion artifact and acceleration data. The cross bicoherence test and the Volterra filter are used as the approaches to detection and modeling. We use the cross bicoherence test to directly detect in the frequency domain and we indirectly identify the nonlinear relationship by improving the performance of eliminating motion artifact in heartbeat rate estimation using a nonlinear filter, the second-order Volterra filter...
August 14, 2017: Sensors
https://www.readbyqxmd.com/read/28805738/vibroacoustic-impact-on-the-architectonic-heritage-when-using-replicas-of-16th-century-weapons
#13
Angel Tomas Lloret, Sandra Sendra, Jaime Lloret, Romina Del Rey, Miguel Louis Cereceda
The recreation of historical battles next to old buildings, walls, churches, fortifications or historical facades belonging to the historical heritage of a city, has always been a source of controversy and discussion. In the absence of a clear legislation about how these buildings can be affected by the use of blunderbusses and pyrotechnics, it is necessary to carry out practical experiments to test the effect of these celebrations on these buildings. For this reason, this paper presents a set of practical experiments where the vibroacoustic effect of using weapons such as blunderbusses and harquebuses is analyzed...
August 14, 2017: Sensors
https://www.readbyqxmd.com/read/28805075/validity-and-reliability-of-accelerometry-in-identification-of-lying-sitting-standing-or-purposeful-activity-in-adult-hospital-inpatients-recovering-from-acute-or-critical-illness-a-systematic-review
#14
Jayne L Anderson, Angela J Green, L Samantha Yoward, Howard K Hall
OBJECTIVE: To investigate the validity and reliability of accelerometers to detect lying, sitting and standing postures or purposeful activity in hospitalized adults recovering from acute or critical illness. DATA SOURCES: CINAHL, MEDLINE, EMBASE, AMED, Cochrane Library, PEDro, PsycINFO and SPORTDiscuss were searched from inception to June 2017. Professional networks and reference lists of relevant articles were also searched. The main selection criteria were hospitalized adults with acute or critical illness and studies investigating the validity or reliability of accelerometers to identify body position or purposeful activity...
August 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28803019/daily-lying-behavior-of-lactating-holstein-cows-during-an-estrus-synchronization-protocol-and-its-associations-with-fertility
#15
B F Silper, A M L Madureira, L B Polsky, S Soriano, A F Sica, J L M Vasconcelos, R L A Cerri
Objectives were to quantify lying behavior (LB) during an estradiol and progesterone-based synchronization protocol, to assess risk factors for ovulation, pregnancy per AI (P/AI), and degree of behavioral change at estrus, and to investigate the associations between estrus LB and walking activity. Holstein cows (43.6 ± 11.0 kg of milk/d) were fitted with leg-mounted accelerometers. Total lying time/d (L_time), bout frequency (bout_N), average lying bout duration, and relative increase in walking activity (ACT%) were evaluated for 1,411 timed artificial insemination events...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28802654/income-physical-activity-sedentary-behavior-and-the-weekend-warrior-among-u-s-adults
#16
Kerem Shuval, Qing Li, Kelley Pettee Gabriel, Rusty Tchernis
The present study examines the association between income and physical activity intensity along the entire continuum using accelerometry in a nationally representative sample of U.S. adults. Specifically, we assessed the relationship between annual household income, sedentary behavior, light, and moderate-vigorous intensity physical activity, and meeting physical activity guidelines over a brief, 2-day period ('weekend warrior'), and during the entire week. The sample consisted of 5206 National Health and Examination Survey adult participants (2003-2006) who wore accelerometers and completed pertinent survey questions...
August 9, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28799216/device-measured-physical-activity-as-a-predictor-of-disability-in-mobility-limited-older-adults
#17
Robert T Mankowski, Stephen D Anton, Robert Axtell, Shyh-Huei Chen, Roger A Fielding, Nancy W Glynn, Fang-Chi Hsu, Abby C King, Andrew S Layne, Christiaan Leeuwenburgh, Todd M Manini, Anthony P Marsh, Marco Pahor, Catrine Tudor-Locke, David E Conroy, Thomas W Buford
OBJECTIVES: To examine associations between objectively measured physical activity (PA) and incidence of major mobility disability (MMD) and persistent MMD (PMMD) in older adults in the Lifestyle Interventions and Independence for Elders (LIFE) Study. DESIGN: Prospective cohort of individuals aged 65 and older undergoing structured PA intervention or health education. SETTING: The LIFE Study was a multicenter (eight sites) randomized controlled trial designed to compare the efficacy of a long-term structured PA intervention with that of a health education (HE) program in reducing the incidence of MMD in mobility-limited older adults...
August 11, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28798198/wearable-ballistocardiogram-and-seismocardiogram-systems-for-health-and-performance
#18
Mozziyar Etemadi, Omer T Inan
Cardiovascular diseases (CVDs) are prevalent in the US and many forms of CVDs primarily affect the mechanical aspects of heart function. Wearable technologies for monitoring the mechanical health of the heart and vasculature could enable proactive management of CVDs through titration of care based on physiological status, as well as preventative wellness monitoring to help promote lifestyle choices that reduce the overall risk of developing CVDs. Additionally, such wearable technologies could be used to optimize human performance in austere environments...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28798149/on-the-utility-of-accelerometers-to-predict-stroke-rate-using-captive-fur-seals-and-sea-lions
#19
Monique A Ladds, David A Rosen, David J Slip, Robert G Harcourt
Energy expenditure of free-living fur seals and sea lions is difficult to measure directly, but may be indirectly derived from flipper stroke rate. We filmed 10 captive otariids swimming with accelerometers either attached to a harness (Daily Diary: sampling frequency 32Hz, N=4) or taped to the fur (G6a+: 25Hz, N=6). We used down sampling to derive four recording rates from each accelerometer (Daily Diary: 32, 16, 8, 4Hz; G6a+: 25, 20, 10, 5Hz). For each of these sampling frequencies we derived 20 combinations of two parameters (RMW - the window size used to calculate the running mean, and m - the minimum number of points smaller than the local maxima used to detect a peak), from the dynamic acceleration of x, z and x+z, to estimate stroke rate from the accelerometers...
August 10, 2017: Biology Open
https://www.readbyqxmd.com/read/28798008/activity-recognition-in-individuals-walking-with-assistive-devices-the-benefits-of-device-specific-models
#20
Luca Lonini, Aakash Gupta, Susan Deems-Dluhy, Shenan Hoppe-Ludwig, Konrad Kording, Arun Jayaraman
BACKGROUND: Wearable sensors gather data that machine-learning models can convert into an identification of physical activities, a clinically relevant outcome measure. However, when individuals with disabilities upgrade to a new walking assistive device, their gait patterns can change, which could affect the accuracy of activity recognition. OBJECTIVE: The objective of this study was to assess whether we need to train an activity recognition model with labeled data from activities performed with the new assistive device, rather than data from the original device or from healthy individuals...
August 10, 2017: JMIR Rehabil Assist Technol
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