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Tracking Fatigue

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https://www.readbyqxmd.com/read/29201937/variance-in-mood-symptoms-across-menstrual-cycles-implications-for-premenstrual-dysphoric-disorder
#1
Tierney K Lorenz, Amanda N Gesselman, Virginia J Vitzthum
Premenstrual dysphoric disorder (PMDD) remains a controversial diagnosis: Some authors have argued that it pathologizes normal mood changes, and others have questioned the need for daily mood reports across multiple cycles. In the present study, we examined changes in mood among psychologically healthy young participants with regular menstrual cycles. We collected daily reports of negative mood (depression, nervousness, irritability, and fatigue) across two to six consecutive cycles from 27 participants aged 18-35 years, and we used variance decomposition analyses to examine how much of the variance in these daily reports was due to day, cycle, and individual...
2017: Women's Reproductive Health
https://www.readbyqxmd.com/read/29200188/the-measurable-benefits-of-a-workplace-wellness-program-in-canada-results-after-one-year
#2
Ilka Lowensteyn, Violette Berberian, Patrick Belisle, Deborah DaCosta, Lawrence Joseph, Steven A Grover
OBJECTIVE: Evaluate the impact of an employee wellness program in Canada. METHODS: A comprehensive program including web-based lifestyle challenges was evaluated with annual health screenings. RESULTS: Among 730 eligible employees, 688 (94%) registered for the program, 571 (78%) completed a health screening at baseline, and 314 (43%) at 1 year. Most (66%) employees tracked their activity for more than 6 weeks. At one year follow-up, there were significant clinical improvements in systolic blood pressure -3...
December 1, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29164651/jaw-closing-movement-and-sex-differences-in-temporomandibular-joint-energy-densities
#3
Luigi M Gallo, Nicolas Fankhauser, Yoly M Gonzalez, Hongzeng Liu, Ying Liu, Jeffrey C Nickel, Laura R Iwasaki
Energy densities (ED, mJ/mm(3) ) quantify mechanical work imposed on articular cartilages during function. This cross-sectional study examined differences in temporomandibular joint (TMJ) ED during asymmetric versus symmetric jaw closing in healthy females versus males. ED component variables were tested for differences between and within sexes for two types of jaw closing. Seventeen female and 17 male subjects gave informed consent to participate. Diagnostic Criteria for Temporomandibular Disorders and images (magnetic resonance (MR), computed tomography) were used to confirm healthy TMJ status...
November 21, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29159669/thyroid-hormones-and-commonly-cited-symptoms-of-overtraining-in-collegiate-female-endurance-runners
#4
Justin X Nicoll, Disa L Hatfield, Kathleen J Melanson, Christopher S Nasin
PURPOSE: Overtraining syndrome (OTS) is reported in endurance sports. Thyroid hormones (TH) regulate metabolism, mood, and energy production, and may play a role in OTS of endurance athletes. The purpose of this study was to investigate relationships in TH and symptoms of OTS in track and field endurance runners (ER). METHODS: Sixteen female track and field middle distance (MD; n = 9; age: 20.2 ± 1.5 years; ht: 167.86 ± 5.04 cm; body-mass: 57.97 ± 5...
November 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29148135/cadence-tracking-and-disturbance-rejection-in-functional-electrical-stimulation-cycling-for-paraplegic-subjects-a-case-study
#5
Lucas O da Fonseca, Antônio P L Bó, Juliana A Guimarães, Miguel E Gutierrez, Emerson Fachin-Martins
Functional electrical stimulation cycling has been proposed as an assistive technology with numerous health and fitness benefits for people with spinal cord injury, such as improvement in cardiovascular function, increase in muscular mass, and reduction of bone mass loss. However, some limitations, for example, lack of optimal control strategies that would delay fatigue, may still prevent this technology from achieving its full potential. In this work, we performed experiments on a person with complete spinal cord injury using a stationary tadpole trike when both cadence tracking and disturbance rejection were evaluated...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29132791/in%C3%A2-vitro-kinematic-assessment-of-a-hinged-elbow-orthosis-following-lateral-collateral-ligament-injury
#6
Ranita H Manocha, Graham J W King, James A Johnson
PURPOSE: Elbow lateral collateral ligament injuries (LCLI) are often managed with protected mobilization using a hinged elbow orthosis (HEO). The objective of this investigation was to determine the effectiveness of an HEO in stabilizing the elbow following LCLI. METHODS: Seven fresh-frozen cadaveric upper extremity specimens were studied using a custom simulator that enabled elbow motion via computer-controlled actuators and servomotors attached to relevant tendons...
November 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29121490/inter-joint-coordination-changes-during-and-after-muscle-fatigue
#7
Jeffrey C Cowley, Deanna H Gates
People produce multi-joint movements by organizing many degrees of freedom into a few major covarying relationships, indicating a high level of inter-joint coordination. These relationships can be identified using data decomposition analyses (e.g. principal components analysis, non-negative matrix factorization). The purpose of this study was to determine how movement coordination changes during muscle fatigue by analyzing the covariance structure of multi-joint movements. Sixteen (16) healthy adults completed a continuous, timed ratcheting task with the right arm for three 1-min intervals before, during, and after an intermittent shoulder fatigue protocol...
November 6, 2017: Human Movement Science
https://www.readbyqxmd.com/read/29109688/weak-relationships-between-stint-duration-physical-and-skilled-match-performance-in-australian-football
#8
David M Corbett, Alice J Sweeting, Sam Robertson
Australian Rules football comprises physical and skilled performance for more than 90 min of play. The cognitive and physiological fatigue experienced by participants during a match may reduce performance. Consequently, the length of time an athlete is on the field before being interchanged (known as a stint), is a key tactic which could maximize the skill and physical output of the Australian Rules athlete. This study developed two methods to quantify the relationship between athlete time on field, skilled and physical output...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29098597/smart-r-a-prospective-cohort-study-of-a-resilience-curriculum-for-residents-by-residents
#9
Deanna Chaukos, Emma Chad-Friedman, Darshan H Mehta, Laura Byerly, Alper Celik, Thomas H McCoy, John W Denninger
OBJECTIVE: This study aimed to determine the feasibility of a resident-led resiliency curriculum developed by residents, for residents. METHODS: The Stress Management and Resiliency Training Program for Residents (SMART-R) is a 6-h group-based curriculum that teaches meditation, behavioral skills, and positive perspective-taking strategies. SMART-R was implemented for all medicine and psychiatry interns at a large US teaching hospital during the first 6 months of internship...
November 2, 2017: Academic Psychiatry
https://www.readbyqxmd.com/read/29078706/gender-differences-in-the-reporting-of-vocal-fatigue-in-teachers-as-quantified-by-the-vocal-fatigue-index
#10
Eric J Hunter, Russell E Banks
OBJECTIVES: Occupational voice users report higher instances of vocal health problems. Women, who are more likely than men to report voice problems, are the largest members of some occupational voice users, such as teachers. While a common complaint among this population is vocal fatigue, it has been difficult to quantify. Therefore, the goal of this study is to quantify vocal fatigue generally in school teachers and investigate any related gender differences. METHODS: Six hundred forty (518 female, 122 male) teachers were surveyed using an online questionnaire consisting in part of the Vocal Fatigue Index (VFI), an index specifically designed to quantify vocal fatigue...
December 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29060396/effects-of-galvanic-skin-response-feedback-on-user-experience-in-gaze-controlled-gaming-a-pilot-study
#11
Fanny Larradet, Giacinto Barresi, Leonardo S Mattos
Eye-tracking (ET) is one of the most intuitive solutions for enabling people with severe motor impairments to control devices. Nevertheless, even such an effective assistive solution can detrimentally affect user experience during demanding tasks because of, for instance, the user's mental workload - using gaze-based controls for an extensive period of time can generate fatigue and cause frustration. Thus, it is necessary to design novel solutions for ET contexts able to improve the user experience, with particular attention to its aspects related to workload...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29049040/the-relationship-between-nutritional-risks-and-cancer-related-fatigue-in-patients-with-colorectal-cancer-fast-track-surgery
#12
Jian-Ning Wei, Shu-Xia Li
BACKGROUND: Measurement of cancer-related fatigue and nutrition in the same colorectal cancer patient group using fast-track surgery has never been examined previously. The association between fatigue and nutritional status in the same patient group is thus worthwhile to be investigated. OBJECTIVE: The aim of this study was to evaluate the relationship between fatigue and nutrition risk factors in colorectal cancer patients with fast-track surgery. METHODS: This is a single-arm, observational study...
October 18, 2017: Cancer Nursing
https://www.readbyqxmd.com/read/29016400/alterations-in-the-mechanical-response-of-deep-dorsal-neck-muscles-in-individuals-suffering-from-whiplash-associated-disorders-compared-to-healthy-controls-an-ultrasound-study
#13
Leila Rahnama, Gunnel Peterson, Anoshirvan Kazemnejad, Johan Trygg, Anneli Peolsson
OBJECTIVE: The purpose of this study was to investigate and compare the mechanical responses of dorsal neck muscles in individuals with whiplash-associated disorders (WAD) versus healthy individuals. DESIGN: This study included 36 individuals with WAD (26 women and 10 men) and 36 healthy controls (26 women and 10 men). Ultrasound imaging with speckle tracking was used to measure deformation and deformation rate in five dorsal neck muscles during a neck extension task...
October 7, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28994356/age-modification-of-the-relationship-between-c-reactive-protein-and-fatigue-findings-from-understanding-society-ukhls
#14
A Hughes, M Kumari
BACKGROUND: Systemic inflammation may play a role in the development of idiopathic fatigue, that is, fatigue not explained by infections or diagnosed chronic illness, but this relationship has never been investigated in community studies including the entire adult age span. We examine the association of the inflammatory marker C-reactive protein (CRP) and fatigue assessed annually in a 3-year outcome period for UK adults aged 16-98. METHODS: Multilevel models were used to track fatigue 7, 19, and 31 months after CRP measurement, in 10 606 UK individuals...
October 10, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28987265/performance-and-sleepiness-in-nurses-working-12-h-day-shifts-or-night-shifts-in-a-community-hospital
#15
Marian Wilson, Regan Permito, Ashley English, Sandra Albritton, Carlana Coogle, Hans P A Van Dongen
Hospitals are around-the-clock operations and nurses are required to care for patients night and day. The nursing shortage and desire for a more balanced work-to-home life has popularized 12-h shifts for nurses. The present study investigated sleep/wake cycles and fatigue levels in 22 nurses working 12-h shifts, comparing day versus night shifts. Nurses (11day shift and 11 night shift) were recruited from a suburban acute-care medical center. Participants wore a wrist activity monitor and kept a diary to track their sleep/wake cycles for 2 weeks...
October 5, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28918950/power-transfer-to-a-human-during-an-electric-eel-s-shocking-leap
#16
Kenneth C Catania
Electric eels have been the subject of investigation and curiosity for centuries [1]. They use high voltage to track [2] and control [3] prey, as well as to exhaust prey by causing involuntary fatigue through remote activation of prey muscles [4]. But their most astonishing behavior is the leaping attack, during which eels emerge from the water to directly electrify a threat [5, 6]. This unique defense has reportedly been used against both horses [7] and humans [8]. Yet the dynamics of the circuit that develops when a living animal is contacted and the electrical power transmitted to the target have not been directly investigated...
September 25, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28916400/assessing-changes-in-the-activity-levels-of-breast-cancer-patients-during-radiation-therapy
#17
Colin E Champ, Nitin Ohri, Rainer J Klement, Matthew Cantor, Sushil Beriwal, Scott M Glaser, Ryan P Smith
BACKGROUND: Radiation therapy (RT) is often delivered after lumpectomy for women with breast cancer. A common perceived side effect of RT is fatigue, yet its exact effect on activity levels and sleep is unknown. In this study we analyzed the change in activity levels and sleep using an activity tracking device before, during, and after RT for women with early stage breast cancer and ductal carcinoma in situ who underwent adjuvant RT. PATIENTS AND METHODS: After institutional review board approval, activity levels were quantified before, during, and after RT with measurements of steps, miles walked, calories burned, and sleep metrics in 10 women fitted with activity trackers...
August 24, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28894216/correlative-evaluation-of-mental-and-physical-workload-of-laparoscopic-surgeons-based-on-surface-electromyography-and-eye-tracking-signals
#18
Jian-Yang Zhang, Sheng-Lin Liu, Qing-Min Feng, Jia-Qi Gao, Qiang Zhang
Surgeons' mental and physical workloads are major focuses of operating room (OR) ergonomics, and studies on this topic have generally focused on either mental workload or physical workload, ignoring the interaction between them. Previous studies have shown that physically demanding work may affect mental performance and may be accompanied by impaired mental processing and decreased performance. In this study, 14 participants were recruited to perform laparoscopic cholecystectomy (LC) procedures in a virtual simulator...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818818/validation-of-a-smartphone-based-approach-to-in-situ-cognitive-fatigue-assessment
#19
Edward Price, George Moore, Leo Galway, Mark Linden
BACKGROUND: Acquired Brain Injuries (ABIs) can result in multiple detrimental cognitive effects, such as reduced memory capability, concentration, and planning. These effects can lead to cognitive fatigue, which can exacerbate the symptoms of ABIs and hinder management and recovery. Assessing cognitive fatigue is difficult due to the largely subjective nature of the condition and existing assessment approaches. Traditional methods of assessment use self-assessment questionnaires delivered in a medical setting, but recent work has attempted to employ more objective cognitive tests as a way of evaluating cognitive fatigue...
August 17, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28813798/a-novel-method-for-muscle-fatigue-assessment-during-robot-based-tracking-tasks
#20
Maddalena Mugnosso, Francesca Marini, Matteo Gillardo, Pietro Morasso, Jacopo Zenzeri
In this work we propose a novel method based on sEMG signals, easy and fast to perform, administered with a robotic device to maximize repeatability and objectivity. Muscle fatigue, which is frequently experienced by healthy subjects, can be a highly debilitating symptom in case of neuromuscular disorders. Its assessment provides crucial information on the progression of the disability itself, on patient's muscular function and on the efficacy of the eventual clinical intervention. Hence, a robust and objective protocol for fatigue assessment is fundamental in rehabilitation practice...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
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