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https://www.readbyqxmd.com/read/28828280/energetics-and-evasion-dynamics-of-large-predators-and-prey-pumas-vs-hounds
#1
Caleb M Bryce, Christopher C Wilmers, Terrie M Williams
Quantification of fine-scale movement, performance, and energetics of hunting by large carnivores is critical for understanding the physiological underpinnings of trophic interactions. This is particularly challenging for wide-ranging terrestrial canid and felid predators, which can each affect ecosystem structure through distinct hunting modes. To compare free-ranging pursuit and escape performance from group-hunting and solitary predators in unprecedented detail, we calibrated and deployed accelerometer-GPS collars during predator-prey chase sequences using packs of hound dogs (Canis lupus familiaris, 26 kg, n = 4-5 per chase) pursuing simultaneously instrumented solitary pumas (Puma concolor, 60 kg, n = 2)...
2017: PeerJ
https://www.readbyqxmd.com/read/28828040/association-between-aerobic-capacity-and-the-improvement-in-glycemic-control-after-the-exercise-training-in-type-2-diabetes
#2
Hideki Nojima, Masayasu Yoneda, Hiroshi Watanabe, Kiminori Yamane, Yoshihiro Kitahara, Kiyokazu Sekikawa, Hideya Yamamoto, Akihito Yokoyama, Noboru Hattori, Nobuoki Kohno
BACKGROUND: We investigated the influence of aerobic capacity on the improvement in glycemic control achieved by long-term aerobic exercise in type 2 diabetes. METHODS: Fifty-three male patients with type 2 diabetes, recruited from outpatient clinics, wore multiple-memory accelerometers and were instructed to exercise at moderate intensity for ≥30 min on ≥3 days per week over 12 months. Peak oxygen uptake (peak [Formula: see text]) and serum glycated albumin (GA) were measured at baseline and after 3, 6, 12 months...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28827572/seal-whiskers-vibrate-over-broad-frequencies-during-hydrodynamic-tracking
#3
Christin T Murphy, Colleen Reichmuth, William C Eberhardt, Benton H Calhoun, David A Mann
Although it is known that seals can use their whiskers (vibrissae) to extract relevant information from complex underwater flow fields, the underlying functioning of the system and the signals received by the sensors are poorly understood. Here we show that the vibrations of seal whiskers may provide information about hydrodynamic events and enable the sophisticated wake-tracking abilities of these animals. We developed a miniature accelerometer tag to study seal whisker movement in situ. We tested the ability of the tag to measure vibration in excised whiskers in a flume in response to laminar flow and disturbed flow...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28827436/association-between-sedentary-time-and-mortality-across-levels-of-frailty
#4
Olga Theou, Joanna M Blodgett, Judith Godin, Kenneth Rockwood
BACKGROUND: Sedentary behaviours are associated with adverse health outcomes in middle-aged and older adults, even among those who exercise. We examined whether the degree of frailty affects the association between sedentary behaviours and higher risk of mortality. METHODS: In this prospective cohort study, we used data from 3141 community-dwelling adults 50 years of age or older from the 2003/04 and 2005/06 cohorts of the US National Health and Nutrition Examination Survey...
August 21, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28821576/effect-of-a-behavioral-intervention-strategy-for-adoption-and-maintenance-of-a-physically-active-lifestyle-the-italian-diabetes-and-exercise-study-ides-2-a-randomized-controlled-trial
#5
Stefano Balducci, Valeria D'Errico, Jonida Haxhi, Massimo Sacchetti, Giorgio Orlando, Patrizia Cardelli, Martina Vitale, Lucilla Bollanti, Francesco Conti, Silvano Zanuso, Antonio Nicolucci, Giuseppe Pugliese
OBJECTIVE: Adherence to physical activity (PA) recommendations is hampered by the lack of effective strategies to promote behavior change. The Italian Diabetes and Exercise Study_2 is a randomized controlled trial evaluating a novel behavioral intervention strategy for increasing PA and decreasing sedentary time (SED-time) in patients with type 2 diabetes. RESEARCH DESIGN AND METHODS: The study randomized 300 physically inactive and sedentary patients with type 2 diabetes 1:1 to receive theoretical and practical counseling once yearly for 3 years (intervention group [INT]) or standard care (control group [CON])...
August 18, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28821287/physical-activity-and-quality-of-life-in-long-term-hospitalized-patients-with-severe-mental-illness-a-cross-sectional-study
#6
Jeroen Deenik, Frank Kruisdijk, Diederik Tenback, Annemarie Braakman-Jansen, Erik Taal, Marijke Hopman-Rock, Aartjan Beekman, Erwin Tak, Ingrid Hendriksen, Peter van Harten
BACKGROUND: Increasing physical activity in patients with severe mental illness is believed to have positive effects on physical health, psychiatric symptoms and as well quality of life. Till now, little is known about the relationship between physical activity and quality of life in long-term hospitalized patients with severe mental illness and knowledge of the determinants of behavioural change is lacking. The purpose of this study was to elucidate the relationship between objectively measured physical activity and quality of life, and explore modifiable psychological determinants of change in physical activity in long-term hospitalized patients with severe mental illness...
August 18, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28821284/physical-exercise-following-esophageal-cancer-treatment-perfect-study-design-of-a-randomized-controlled-trial
#7
Jonna K van Vulpen, Peter D Siersema, Richard van Hillegersberg, Grard A P Nieuwenhuijzen, Ewout A Kouwenhoven, Richard P R Groenendijk, Donald L van der Peet, Eric J Hazebroek, Camiel Rosman, Carlo C G Schippers, Elles Steenhagen, Petra H M Peeters, Anne M May
BACKGROUND: Following esophagectomy, esophageal cancer patients experience a clinically relevant deterioration of health-related quality of life, both on the short- and long-term. With the currently growing number of esophageal cancer survivors, the burden of disease- and treatment-related complaints and symptoms becomes more relevant. This emphasizes the need for interventions aimed at improving quality of life. Beneficial effects of post-operative physical exercise have been reported in several cancer types, but so far comparable evidence in esophageal cancer patients is lacking...
August 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28820353/a-novel-determination-of-energy-expenditure-efficiency-during-a-balance-task-using-accelerometers-a-pilot-study
#8
Alejandro Caña-Pino, Maria Dolores Apolo-Arenas, Javier Moral-Blanco, Ernesto De la Cruz-Sánchez, Luis Espejo-Antúnez
Objectives to determine the displacement of the Center of Pressure (CoP) and its association with the spectral energy density of the acceleration required for the maintenance of postural balance in different standing positions in healthy participants. Design Observational study. Setting Laboratorial study. Participants 30 healthy university students aged between 18 and 32 years old (mean±SD = 21,57 ± 3,31 years). Main outcome measures Triaxial accelerometer and a pressure platform were used in order to obtain energy spectral density and CoP sway measurements during four balance tasks...
August 18, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28819075/-advances-in-neurological-therapeutics-for-friedreich-ataxia-and-machado-joseph-disease
#9
Ichiro Yabe, Hidenao Sasaki
We reviewed advances in therapeutics for both Friedreich ataxia and Machado-Joseph disease. Various clinical trials have been carried out, mainly for Friedreich ataxia; however, the therapeutic reports from these trials have not provided much evidence for success. Some interesting clinical trials have been reported, and further developments are expected. Regenerative therapy using umbilical cord mesenchymal stem cells and a therapeutic study investigating a new pathomechanism in animal and/or cell culture studies were reported...
August 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28818819/quantifying-human-movement-using-the-movn-smartphone-app-validation-and-field-study
#10
Ralph Maddison, Luke Gemming, Javier Monedero, Linda Bolger, Sarahjane Belton, Johann Issartel, Samantha Marsh, Artur Direito, Madeleine Solenhill, Jinfeng Zhao, Daniel John Exeter, Harshvardhan Vathsangam, Jonathan Charles Rawstorn
BACKGROUND: The use of embedded smartphone sensors offers opportunities to measure physical activity (PA) and human movement. Big data-which includes billions of digital traces-offers scientists a new lens to examine PA in fine-grained detail and allows us to track people's geocoded movement patterns to determine their interaction with the environment. OBJECTIVE: The objective of this study was to examine the validity of the Movn smartphone app (Moving Analytics) for collecting PA and human movement data...
August 17, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28818533/the-association-between-bouted-and-non-bouted-physical-activity-on-retinopathy-prevalence
#11
Emily Frith, Paul D Loprinzi
OBJECTIVE: We evaluated the specific differential association between non-bouted, lifestyle physical activities (vs. structured exercise; i.e., bouted physical activity) on retinopathy prevalence among a national sample of the broader U.S. adult population. METHODS: Data from the 2005-2006 National Health and Nutrition Examination Survey (NHANES) was used to identify 1501 adults, between 40 and 85years. Bouted and non-bouted physical activities were assessed using objective accelerometer monitoring...
August 14, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28818108/association-of-parents-and-children-s-physical-activity-and-sedentary-time-in-year-4-8-9-and-change-between-year-1-5-6-and-year-4-a-longitudinal-study
#12
Russell Jago, Emma Solomon-Moore, Corrie Macdonald-Wallis, Janice L Thompson, Deborah A Lawlor, Simon J Sebire
BACKGROUND: Parents could be important influences on child physical activity and parents are often encouraged to be more active with their child. This paper examined the association between parent and child physical activity and sedentary time in a UK cohort of children assessed when the children were in Year 1 (5-6 years old) and in Year 4 (8-9 years old). METHODS: One thousand two hundred twenty three children and parents provided data in Year 4 and of these 685 participated in Year 1...
August 17, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28818057/effect-of-counselling-during-pulmonary-rehabilitation-on-self-determined-motivation-towards-physical-activity-in-people-with-chronic-obstructive-pulmonary-disease-protocol-of-a-mixed-methods-study
#13
Anne-Kathrin Rausch-Osthoff, Nicola Greco, Ariane Schwank, Swantje Beyer, David Gisi, Mandy Scheermesser, André Meichtry, Noriane Sievi, Thomas Hess, Markus Wirz
BACKGROUND: Physical activity promotion in people with Chronic Obstructive Pulmonary Disease (COPD) is focus of research and public health. Patient-centred interventions like counselling are promising approaches to help patients reducing sedentary behaviour. Aim of the present study is to investigate if a physical activity counselling program during pulmonary rehabilitation increases physical activity level in daily life in people with COPD. METHODS: A two-armed, single blind randomised controlled trial including 56 people with COPD will be conducted in an outpatient pulmonary rehabilitation...
August 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28817966/attitudes-and-barriers-to-healthy-diet-and-physical-activity-a-latent-profile-analysis
#14
Christine A Vaughan, Madhumita Ghosh-Dastidar, Tamara Dubowitz
Healthy diet and physical activity (PA) prevent and reduce chronic disease. Social cognitive theory delineates multiple attitudes and barriers that influence these behaviors. Understanding covariation in these attitudes and barriers is complex. We examined whether individuals could be grouped into a small number of categories that are easier to study. Interviews were conducted with 982 adults from two low-income, predominantly African American neighborhoods in the same city. Social cognitive constructs, including self-efficacy, social norms, and internal and external barriers to diet and exercise, and walking were self-reported...
August 1, 2017: Health Education & Behavior: the Official Publication of the Society for Public Health Education
https://www.readbyqxmd.com/read/28816512/the-effects-of-active-videogame-feedback-and-practicing-experience-on-children-s-physical-activity-intensity-and-enjoyment
#15
Han Chen, Haichun Sun
OBJECTIVE: The study aims to explore the effects of receiving active videogame (AVG) feedback and playing experience on individuals' moderate-to-vigorous physical activity (MVPA) and perceived enjoyment. MATERIALS AND METHODS: This was a within-subject design study. The participants included 36 (n = 15 and 21 for boys and girls, respectively) fourth graders enrolled in a rural elementary school in southern Georgia area. The experiment lasted for 6 weeks with each week including three sessions...
August 2017: Games for Health
https://www.readbyqxmd.com/read/28815146/quantifying-the-relative-change-in-physical-activity-after-total-knee-arthroplasty-using-accelerometer-based-measurements
#16
Vibhu Agarwal, Mathew Smuck, Nigam H Shah
Osteoarthritis is amongst the top five most disabling conditions affecting Americans over 65 years of age and imposes an annual economic burden estimated at $ 89.1 billion. Nearly half of the cost of care of Osteoarthritis is attributable to hospitalizations for total knee arthroplasties (TKA) and total hip arthroplasties (THA). The current clinical practice relies predominantly on subjective assessment of physical function and pain via patient reported outcome measures (PROM) that have proven inadequate for providing a validated, reliable and responsive measure of TKA outcomes...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28814611/homing-pigeons-columba-livia-modulate-wingbeat-characteristics-as-a-function-of-route-familiarity
#17
Lucy A Taylor, Steven J Portugal, Dora Biro
Mechanisms of avian navigation have received considerable attention, but whether different navigational strategies are accompanied by different flight characteristics is unknown. Managing energy expenditure is critical for survival; therefore, understanding how flight characteristics, and hence energy allocation, potentially change with birds' familiarity with a navigational task could provide key insights into the costs of orientation. We addressed this question by examining changes in the wingbeat characteristics and airspeed of homing pigeons (Columba livia) as they learned a homing task...
August 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28814049/wearable-sensing-for-rehabilitation-after-stroke-bimanual-jerk-asymmetry-encodes-unique-information-about-the-variability-of-upper-extremity-recovery
#18
Diogo S de Lucena, Oliver Stoller, Justin B Rowe, Vicky Chan, David J Reinkensmeyer
Wearable sensing is a new tool for quantifying upper extremity (UE) rehabilitation after stroke. However, it is unclear whether it provides information beyond what is available through standard clinical assessments. To investigate this question, people with a chronic stroke (n=9) wore accelerometers on both wrists for 9 hours on a single day during their daily activities. We used principal components analysis (PCA) to characterize how novel kinematic measures of jerk and acceleration asymmetry, along with conventional measures of limb use asymmetry and clinical function, explained the behavioral variance of UE recovery across participants...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813957/an-instrumented-object-for-studying-human-grasping
#19
R A Romeo, F Cordelia, A Davalli, R Sacchetti, E Guglielmelli, L Zollo
This paper proposes the use of an instrumented object for the study of the human grasping strategies. The proposed object is able to measure the grasping forces by means of three Force Sensitive Resistor (FSR) sensors and triaxial acceleration through an accelerometer. The object orientation angles (roll and pitch) can be estimated from the accelerometer output in quasi-static condition, whereas slippage events can be detected through the Power Spectrum Density (PSD) computation of the acceleration on at least one of the three axes...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813842/using-wearable-physiological-sensors-to-predict-energy-expenditure
#20
Kimberly A Ingraham, Daniel P Ferris, C David Remy
Lower-limb assistive robotic devices are often evaluated by measuring a reduction in the user's energy cost. Using indirect calorimetry to estimate energy cost is poorly suited for real-time estimation and long-term collection. The goal of this study was to use data from wearable sensors to predict energy cost with better temporal resolution and less variability than breath measurements. We collected physiological data (heart rate, electrodermal activity, skin temperature) and mechanical data (EMG, accelerometry) from three healthy subjects walking on a treadmill at various speeds on level ground, inclined, and backwards...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
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