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https://www.readbyqxmd.com/read/28230727/analyzing-the-effects-of-uav-mobility-patterns-on-data-collection-in-wireless-sensor-networks
#1
Sarmad Rashed, Mujdat Soyturk
Sensor nodes in a Wireless Sensor Network (WSN) can be dispersed over a remote sensing area (e.g., the regions that are hardly accessed by human beings). In such kinds of networks, datacollectionbecomesoneofthemajorissues. Getting connected to each sensor node and retrieving the information in time introduces new challenges. Mobile sink usage-especially Unmanned Aerial Vehicles (UAVs)-is the most convenient approach to covering the area and accessing each sensor node in such a large-scale WSN. However, the operation of the UAV depends on some parameters, such as endurance time, altitude, speed, radio type in use, and the path...
February 20, 2017: Sensors
https://www.readbyqxmd.com/read/28230530/developing-a-multi-component-immune-model-for-evaluating-the-risk-of-respiratory-illness-in-athletes
#2
Maree Gleeson, David B Pyne, Lisa J Elkington, Sharron T Hall, John R Attia, Christopher Oldmeadow, Lisa G Wood, Robin Callister
Clinical and laboratory identification of the underlying risk of respiratory illness in athletes has proved problematic. The aim of this study was to determine whether clinical data, combined with immune responses to standardised exercise protocols and genetic cytokine polymorphism status, could identify the risk of respiratory illness (symptoms) in a cohort of highly-trained athletes. Male endurance athletes (n=16; VO2max 66.5 ± 5.1 mL.kg-1.min-1) underwent a clinical evaluation of known risk factors by a physician and comprehensive laboratory analysis of immune responses both at rest and after two cycling ergometer tests: 60 min at 65% VO2max (LONG); and 6 x 3 min intervals at 90% VO2max (INTENSE)...
2017: Exercise Immunology Review
https://www.readbyqxmd.com/read/28229567/repeated-sprint-training-in-the-fasted-state-during-ramadan-morning-or-evening-training
#3
Asma Aloui, Tarak Driss, Hana Baklouti, Hamdi Jaafar, Omar Hammouda, Karim Chamari, Nizar Souissi
BACKGROUND: The present study assessed the optimal moment-of-day for repeated-sprint training in the fasted state during Ramadan. METHODS: Thirty amateur soccer players were randomly assigned to a morning training group (MTG, training at ~08:00 a.m., n = 10), an evening training group (ETG, training at ~06:00 p.m., n = 10), and a control group (n = 10). Training sessions, conducted on alternate days, consisted of 3 sets of 6 × 40-m shuttle sprints (2 × 20 m with 180° direction changes)...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229255/nordic-walking-training-attenuation-of-oxidative-stress-in-association-with-a-drop-in-body-iron-stores-in-elderly-women
#4
Jakub Kortas, Agnieszka Kuchta, Krzysztof Prusik, Katarzyna Prusik, Ewa Ziemann, Sandra Labudda, Agnieszka Ćwiklińska, Ewa Wieczorek, Maciej Jankowski, Jedrzej Antosiewicz
Excess body iron accumulation and oxidative stress has been associated with ageing. Regular exercise has been shown to reduce oxidative stress and induce some changes in iron metabolism. However, the effects of exercise on both of these parameters have been poorly investigated. In our study, 35 elderly women participated in 12 weeks of Nordic walking (NW) training (three times a week). We demonstrated that the training caused a significant reduction in malondialdehyde advanced oxidation protein products-markers of oxidative stress but had no effects on paraoxonase 1 activity...
February 22, 2017: Biogerontology
https://www.readbyqxmd.com/read/28227699/endurance-based-personalized-fitness-planner
#5
S Sahoo, V N Tiwari, R Narayanan, S Sahoo, V N Tiwari, R Narayanan, R Narayanan, V N Tiwari, S Sahoo
Endurance is an important factor of cardiovascular fitness indicating the capacity of an individual to perform exercise for a longer duration with increased intensity. Various subject specific and exercise related parameters affect endurance of an individual. In this work, we propose a statistical technique to model endurance as a function of these factors incorporating the serial dependence of observations generated by individuals over time. The proposed model provides a device to predict future endurance of a test subject following particular exercise regime...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227308/analyzing-the-influence-of-curl-speed-in-fatiguing-biceps-brachii-muscles-using-semg-signals-and-multifractal-detrended-moving-average-algorithm
#6
Kiran Marri, Ramakrishnan Swaminathan, Kiran Marri, Ramakrishnan Swaminathan, Kiuuwncran Marri, Ramakrishnan Swaminathan
In this work, an attempt has been made to analyze surface electromyography (sEMG) signals of fatiguing biceps brachii muscles at different curl speeds using multifractal detrended moving average (MFDMA) algorithm. For this purpose, signals are recorded from fifty eight healthy subjects while performing curl exercise at their comfortable speed until fatigue. The signals of first and last curls are considered as nonfatigue and fatigue conditions, respectively. Further, the number of curls performed by each subject and the endurance time is used for computing the normalized curl speed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227307/estimating-the-progression-of-muscle-fatigue-based-on-dependence-between-motor-units-using-high-density-surface-electromyogram
#7
Adrian Bingham, Sridhar P Arjunan, Dinesh K Kumar, Adrian Bingham, Sridhar P Arjunan, Dinesh K Kumar, Adrian Bingham, Dinesh K Kumar, Sridhar P Arjunan
In this study we have tested the hypothesis regarding the increase in synchronization with the onset of muscle fatigue. For this aim, we have investigated the difference in the synchronicity between high density surface electromyogram (sEMG) channels of the rested muscles and when at the limit of endurance. Synchronization was measured by computing and normalizing the mutual information between the sEMG signals recorded from the high-density array electrode locations. Ten volunteers (Age range: 21 and 35 years; Mean age = 26 years; Male = 6, Female = 4) participated in our experiment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226298/the-effect-of-muscle-fatigue-and-low-back-pain-on-lumbar-movement-variability-and-complexity
#8
C M Bauer, F M Rast, M J Ernst, A Meichtry, J Kool, S M Rissanen, J H Suni, M Kankaanpää
INTRODUCTION: Changes in movement variability and complexity may reflect an adaptation strategy to fatigue. One unresolved question is whether this adaptation is hampered by the presence of low back pain (LBP). This study investigated if changes in movement variability and complexity after fatigue are influenced by the presence of LBP. It is hypothesised that pain free people and people suffering from LBP differ in their response to fatigue. METHODS: The effect of an isometric endurance test on lumbar movement was tested in 27 pain free participants and 59 participants suffering from LBP...
February 13, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28225475/stretching-exercises-improve-vascular-endothelial-dysfunction-through-attenuation-of-oxidative-stress-in-chronic-heart-failure-patients-with-an-implantable-cardioverter-defibrillator
#9
Michitaka Kato, Takashi Masuda, Michio Ogano, Kazuki Hotta, Hisato Takagi, Shinya Tanaka, Yumi Kamada, Ayako Akiyama, Daisuke Kamekawa, Ryosuke Shimizu, Minoru Tabata, Jun Tanabe, Takuya Umemoto
PURPOSE: Endurance training improves oxidative stress and vascular endothelial dysfunction in patients with chronic heart failure (CHF). However, patients with CHF and an implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy-defibrillator (CRT-D) often avoid endurance training for fear of ICD shock. Recent studies have reported that stretching exercises enhance antioxidant activity and improve vascular responses. Therefore, we aimed to assess the effects of 4 weeks of stretching exercises on oxidative stress and vascular endothelial function in patients with CHF with an ICD or CRT-D...
March 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28223938/hypoxic-repeat-sprint-training-improves-rugby-player-s-repeated-sprint-but-not-endurance-performance
#10
Michael J Hamlin, Peter D Olsen, Helen C Marshall, Catherine A Lizamore, Catherine A Elliot
This study aims to investigate the performance changes in 19 well-trained male rugby players after repeat-sprint training (six sessions of four sets of 5 × 5 s sprints with 25 s and 5 min of active recovery between reps and sets, respectively) in either normobaric hypoxia (HYP; n = 9; FIO2 = 14.5%) or normobaric normoxia (NORM; n = 10; FIO2 = 20.9%). Three weeks after the intervention, 2 additional repeat-sprint training sessions in hypoxia (FIO2 = 14.5%) was investigated in both groups to gauge the efficacy of using "top-up" sessions for previously hypoxic-trained subjects and whether a small hypoxic dose would be beneficial for the previously normoxic-trained group...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28222576/may-a-unitary-autonomic-index-help-assess-autonomic-cardiac-regulation-in-elite-athletes-preliminary-observations-on-the-national-italian-olympic-committee-team
#11
Roberto Sala, Mara Malacarne, Fabio Tosi, Manuela Benzi, Nadia Solaro, Stefano Tamorri, Antonio Spataro, Massimo Pagani, Daniela Lucini
BACKGROUND: Long term endurance training, as occurring in elite athletes, is associated to cardiac neural remodeling in favor of cardioprotective vagal mechanisms, resulting in resting bradycardia and augmented contribution of cardiac parasympathetic nerve activity. Autonomic assessment can be performed by way of Heart Rate Variability. This technique however provides multiple indices, and there is not yet complete agreement on their specific significance. Purpose of the study was to assess whether a rank transformation and radar plot could provide a unitary autonomic index, capable to show a correlation between intensity of individual work and quality of autonomic regulation...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28222573/soccer-related-performance-in-eumenorrheic-tunisian-high-level-soccer-players-effects-of-menstrual-cycle-phase-and-moment-of-day
#12
Mohamed Tounsi, Hamdi Jaafar, Asma Aloui, Nizar Souissi
BACKGROUND: This study aimed to examine the combined effects of menstrual cycle phase and moment of day on female soccer players' performances in the five-jump test (5JT), the repeated shuttle- sprint ability test (RSSA), and the Yo-Yo intermittent recovery test level 1 (YYIRT1). METHODS: Eleven eumenorrheic Tunisian high-level soccer players volunteered to participate. Each subject individually participated in three testing periods: one in the early follicular phase (menses), one in the late follicular phase, and another in the luteal phase...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28221755/multilevel-ultra-fast-flexible-nanoscale-non-volatile-hybrid-graphene-oxide-titanium-oxide-memories
#13
V Karthik Nagareddy, Matthew D Barnes, Federico Zipoli, Khue T Lai, Arseny M Alexeev, Monica Felicia Craciun, C David Wright
Graphene oxide (GO) resistive memories offer the promise of low-cost environmentally-sustainable fabrication, high mechanical flexibility and high optical transparency, making them ideally suited to future flexible and transparent electronics applications. However, the dimensional and temporal scalability of GO memories, i.e. how small they can be made and how fast they can be switched, is an area that has received scant attention. Moreover, a plethora of GO resistive switching characteristics and mechanisms has been reported in the literature, sometimes leading to a confusing and conflicting picture...
February 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28217414/dance-balance-and-core-muscle-performance-measures-are-improved-following-a-9-week-core-stabilization-training-program-among-competitive-collegiate-dancers
#14
Todd Watson, Jessica Graning, Sue McPherson, Elizabeth Carter, Joshuah Edwards, Isaac Melcher, Taylor Burgess
BACKGROUND: Dance performance requires not only lower extremity muscle strength and endurance, but also sufficient core stabilization during dynamic dance movements. While previous studies have identified a link between core muscle performance and lower extremity injury risk, what has not been determined is if an extended core stabilization training program will improve specific measures of dance performance. HYPOTHESIS/PURPOSE: This study examined the impact of a nine-week core stabilization program on indices of dance performance, balance measures, and core muscle performance in competitive collegiate dancers...
February 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28214618/deep-neck-flexor-endurance-in-the-adolescent-and-young-adult-normative-data-and-associated-attributes
#15
Nathan F Jarman, Toby Brooks, C Roger James, Troy Hooper, Mark Wilhelm, Jean-Michel Brismée, Manuel A Domenech, Stanley J Kotara, Phillip S Sizer
BACKGROUND: Deep neck flexor (DNF) muscles stabilize the neck and contribute to head acceleration control. The function of DNF in cervical spine dynamic stabilization has not been examined in athletes of any age group, including adolescents. This investigation was necessary prior to studying the DNF muscles' role in cervical spine injury patterns. OBJECTIVES: (1) To determine average Deep Neck Flexor Endurance Test (DNFET) time scores in high school and university-aged subjects (ages 14-22); and (2) To establish the relationship between gender and age for adolescent DNFET time scores...
February 15, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28211822/robot-assisted-end-effector-based-gait-training-in-chronic-stroke-patients-a%C3%A2-multicentric-uncontrolled-observational-retrospective-clinical-study
#16
Stefano Mazzoleni, Antonella Focacci, Marco Franceschini, Andreas Waldner, Chiara Spagnuolo, Elena Battini, Donatella Bonaiuti
BACKGROUND: Until now studies report inconclusive results as regards the effectiveness of exclusive use of robot-assisted training and clinical indications in stroke patients. OBJECTIVE: To evaluate if the only robot-assisted end-effector-based gait training can be feasible in chronic stroke subjects in terms of gait recovery. METHODS: Five rehabilitation centers participated and one hundred chronic post-stroke patients were recruited. Patients underwent a robot-assisted end-effector-based gait training as only rehabilitation treatment...
February 15, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28211797/effects-of-an-intervention-based-on-the-transtheoretical-model-on-back-muscle-endurance-physical-function-and-pain-in-rice-farmers-with-chronic-low-back-pain
#17
Thanakorn Thanawat, Nomjit Nualnetr
BACKGROUND: Chronic low back pain (LBP) can be managed by exercises which should be tailored to an individual's readiness to behavioral change. OBJECTIVE: To evaluate the effects of an intervention program based on the Transtheoretical Model of behavioral change (TTM) on back muscle endurance, physical function and pain in rice farmers with chronic LBP. METHODS: In a 32-week study, 126 rice farmers were allocated to the TTM (n= 62) and non-TTM (n= 64) groups...
February 3, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28210805/transcutaneous-carbon-dioxide-application-accelerates-muscle-injury-repair-in-rat-models
#18
Shiho Akahane, Yoshitada Sakai, Takeshi Ueha, Hanako Nishimoto, Miho Inoue, Takahiro Niikura, Ryosuke Kuroda
PURPOSE: Skeletal muscle injuries are commonly observed in sports and traumatology medicine. Previously, we demonstrated that transcutaneous application of carbon dioxide (CO2) to lower limbs increased the number of muscle mitochondria and promoted muscle endurance. Therefore, we aimed to investigate whether transcutaneous CO2 application could enhance recovery from muscle injury. METHODS: Tibialis anterior muscle damage was induced in 27 Sprague Dawley rats via intramuscular injection of bupivacaine...
February 16, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28209739/myocardial-ischemic-tolerance-in-rats-subjected-to-endurance-exercise-training-during-adaptation-to-chronic-hypoxia
#19
Petra Alánová, Anna Chytilová, Jan Neckář, Jaroslav Hrdlička, Petra Míčová, Kristýna Holzerová, Markéta Hlaváčková, Kristýna Macháčková, František Papoušek, Jana Vašinová, Daniel Benák, Olga Nováková, František Kolář
Chronic hypoxia and exercise are natural stimuli that confer sustainable cardioprotection against ischemia/reperfusion (I/R) injury but it is unknown whether they can act in synergy to enhance ischemic resistance. Inflammatory response mediated by tumor necrosis factor-α (TNF-α) plays a role in the infarct size-limitation by continuous normobaric hypoxia (CNH) whereas exercise is associated with anti-inflammatory effects. This study was conducted to determine whether exercise training performed under conditions of CNH (12% O2) affects myocardial ischemic resistance with respect to inflammatory and redox status...
February 16, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28208847/effect-of-different-phases-of-menstrual-cycle-on-cardio-respiratory-efficiency-in-normal-overweight-and-obese-female-undergraduate-students
#20
Nazrin Samsudeen, Archana Rajagopalan
INTRODUCTION: The influence of obesity on cardio-respiratory efficiency in the various phases of menstrual cycle is not well understood until now. As majority of Indian women have a favourable attitude towards participation in sports it is significant to understand the variation in exercise performance during different phases of menstrual cycle to have an optimum performance. AIM: To evaluate the endurance capacity and cardio-respiratory responses in normal, obese and overweight female undergraduate students during different phases of menstrual cycle...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
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