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Monitoring training load

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https://www.readbyqxmd.com/read/28227055/hrv4training-large-scale-longitudinal-training-load-analysis-in-unconstrained-free-living-settings-using-a-smartphone-application
#1
Marco Altini, Oliver Amft, Marco Altini, Oliver Amft, Oliver Amft, Marco Altini
We describe an approach to support athletes at various fitness levels in their training load analysis using heart rate (HR) and heart rate variability (HRV). A smartphone-based application (HRV4Training) was developed that captures heart activity over one to five minutes using photoplethysmography (PPG) and derives HR and HRV features. HRV4Training integrated a guide for an early morning spot measurement protocol and a questionnaire to capture self-reported training activity. The smartphone application was made publicly available for interested users to quantify training effect...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226882/development-of-a-real-time-activity-monitoring-android-application-utilizing-smartstep
#2
Nagaraj Hegde, Edward Melanson, Edward Sazonov, Nagaraj Hegde, Edward Melanson, Edward Sazonov, Nagaraj Hegde, Edward Melanson, Edward Sazonov
Footwear based activity monitoring systems are becoming popular in academic research as well as consumer industry segments. In our previous work, we had presented developmental aspects of an insole based activity and gait monitoring system-SmartStep, which is a socially acceptable, fully wireless and versatile insole. The present work describes the development of an Android application that captures the SmartStep data wirelessly over Bluetooth Low energy (BLE), computes features on the received data, runs activity classification algorithms and provides real time feedback...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226260/temporal-performance-assessment-of-wastewater-treatment-plants-by-using-multivariate-statistical-analysis
#3
Milad Ebrahimi, Erin L Gerber, Thomas D Rockaway
For most water treatment plants, a significant number of performance data variables are attained on a time series basis. Due to the interconnectedness of the variables, it is often difficult to assess over-arching trends and quantify operational performance. The objective of this study was to establish simple and reliable predictive models to correlate target variables with specific measured parameters. This study presents a multivariate analysis of the physicochemical parameters of municipal wastewater. Fifteen quality and quantity parameters were analyzed using data recorded from 2010 to 2016...
February 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28192512/explosive-strength-and-endurance-adaptations-in-young-elite-soccer-players-during-two-soccer-seasons
#4
Riccardo Di Giminiani, Christiano Visca
The purpose of the present study was to investigate the explosive strength and endurance adaptations in young elite soccer players who underwent a supervised training program for a period of two years. Nineteen players, with seven years of training experience (age: 13.3 ± 0.1 years; body weight: 57.9 ± 4.9 kg; height: 168.9 ± 4.7 cm; BMI: 20.1 ± 1.1 kg/m2), voluntarily participated in the present study. The testing sessions were performed at the beginning of the preparation period in the first (T1), second (T2), and third year (T3)...
2017: PloS One
https://www.readbyqxmd.com/read/28182523/monitoring-hitting-load-in-tennis-using-inertial-sensors-and-machine-learning
#5
David Whiteside, Olivia Cant, Molly Connolly, Machar Reid
PURPOSE: Quantifying external workload is fundamental to training prescription in sport. In tennis, global positioning data are imprecise and fail to capture hitting loads. The current gold standard (manual notation) is time intensive and often not possible given players' heavy travel schedules. The aim of this study was to develop an automated stroke classification system to help quantify hitting load in tennis. METHODS: 18 athletes wore an inertial measurement unit (IMU) on their wrist during 66 video-recorded training sessions...
February 9, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28159632/respiratory-and-locomotor-muscle-implications-on-the-vo2-slow-component-and-the-vo2-excess-in-young-trained-cyclists
#6
Ferid Oueslati, Jan Boone, Zouhair Tabka, Said Ahmaidi
We investigated the impact of ramp and constant-load exercise on (i) respiratory muscle fatigue and locomotor muscle oxygenation, (ii) their relationship with the excess VO2 and VO2 slow component (SC). Fourteen male cyclists performed two tests to exhaustion: an incremental ramp and a constant-load exercise with continuous monitoring of expired gases and oxygenation of the vastus lateralis muscle on two separate days. Maximal inspiratory (MIP) and expiratory (MEP) pressure measurements were taken at rest and post- exercise...
January 31, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28152927/reducing-wait-time-wt-in-the-infusion-center-ic
#7
Lianne Lopez, Angela Aschian, Betty Chan, Martha Inofuentes, Zoraida Truax, Sally Golingay, Gwendoyn Lynch, Peggy Matsuura, Afsaneh Barzi
: 249 Background: Lengthy WT is the primary source of dis-satisfaction with IC services. We created a patient (PT) flow diagram outlining each step beginning from PT check-in to discharge and plotted the impact of multiple disciplines on the WT. A team of nurses, pharmacists, physicians, and administrators, analyzed the flow and identified ways to improve efficiencies. METHODS: First attempt was to improve communications between pharmacy and nursing, coordinating the preparation of medications with patient's check-in time; use of a simple clipboard facilitated this task and improved the efficiency of the system...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28149416/monitoring-salivary-immunoglobulin-a-responses-to-official-and-simulated-matches-in-elite-young-soccer-players
#8
Camila G Freitas, Marcelo S Aoki, Ademir F S Arruda, Clóvis Franciscon, Alexandre Moreira
The purpose of the present study was to examine SIgA responses (concentration [SIgAabs] and a secretion rate [SIgArate]) to official and simulated competitive matches in young soccer players. The sample was composed of 26 male soccer players (age 15.6 ± 1.1 yrs, stature 177.0 ± 6.1 cm, body mass 70.5 ± 5.7 kg). Four soccer matches (two simulated matches [SM] and two official matches [OM]) were conducted. The matches consisted of two halves of 35 min with a 10 min rest interval. Each assessed player participated in only one SM and one OM...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149380/effect-of-the-pitch-size-and-presence-of-goalkeepers-on-the-work-load-of-players-during-small-sided-soccer-games
#9
Karel Hulka, Radim Weisser, Jan Belka
Small-sided games (SSGs) are spontaneous forms of specific training where exercise intensity can be manipulated by modifying external factors. To ensure suitable usage of small-sided games in practice, we have to know which variables can influence internal responses and external loads. The aim of the present study was to determine the influence of presence of a goalkeeper and the pitch size on internal responses and the external load during five-a-side soccer games. Twenty nine junior soccer players (age: 18...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149376/a-new-physical-performance-classification-system-for-elite-handball-players-cluster-analysis
#10
Iker J Bautista, Ignacio J Chirosa, Joseph E Robinson, Roland van der Tillaar, Luis J Chirosa, Isidoro Martínez Martín
The aim of the present study was to identify different cluster groups of handball players according to their physical performance level assessed in a series of physical assessments, which could then be used to design a training program based on individual strengths and weaknesses, and to determine which of these variables best identified elite performance in a group of under-19 [U19] national level handball players. Players of the U19 National Handball team (n=16) performed a set of tests to determine: 10 m (ST10) and 20 m (ST20) sprint time, ball release velocity (BRv), countermovement jump (CMJ) height and squat jump (SJ) height...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28146033/exertional-rhabdomyolysis-in-a-21-year-old-healthy-female-a-case-report
#11
Brianna D McKay, Noelle M Yeo, Nathaniel D M Jenkins, Amelia A Miramonti, Joel T Cramer
The optimal resistance training program to elicit muscle hypertrophy has been recently debated and researched. Although 3 sets of 10 repetitions at 70-80% of the 1-repetition maximum (1RM) is widely recommended, recent studies have shown that low-load (∼30% 1RM), high-repetition (3 sets of 30-40 repetitions) resistance training can elicit similar muscular hypertrophy. Incidentally, this type of resistance training has gained popularity. In the process of testing this hypothesis in a research study in our laboratory, a subject was diagnosed with exertional rhabdomyolysis after completing a resistance training session that involved 3 sets to failure at 30% 1RM...
January 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28146032/different-training-loads-partially-influence-physiological-responses-to-preparation-period-in-basketball
#12
Davide Ferioli, Andrea Bosio, Antonio La Torre, Domenico Carlomagno, Darragh R Connolly, Ermanno Rampinini
The aim of this study was to compare perceived TL (sRPE-TL), training volume (TV) and the changes in physical fitness between professional (n=14) and semi-professional (n=18) basketball players during the preparation period. Furthermore, relationships between sRPE-TL and TV with changes in physical fitness level were investigated. The players performed the Yo-Yo Intermittent Recovery Test (Yo-Yo IR1) before and after the preparation period. In addition, physiological responses to a standardized 6-min continuous running test (Mognoni's test) and to a standardized 5-min high-intensity intermittent running test (HIT) were measured...
January 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28134713/hiv-viral-load-scale-up-multiple-interventions-to-meet-the-hiv-treatment-cascade
#13
Sergio Carmona, Trevor Peter, Leigh Berrie
PURPOSE OF REVIEW: In 2015, the WHO urged countries to provide ART to all people living with HIV, irrespective of their CD4 cell count, this new recommendation supports the Joint United Nations Programme on HIV/AIDS elimination targets. However, to meet these aims, urgent scale-up of viral load testing is critical. The multiple interventions in the healthcare system required to support scale-up of viral load testing are reviewed here. RECENT FINDINGS: It is estimated that 18...
March 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28126388/impact-of-coal-carrying-trains-on-particulate-matter-concentrations-in-south-delta-british-columbia-canada
#14
K Akaoka, I McKendry, J Saxton, P W Cottle
Transport of coal by train through residential neighborhoods in Metro Vancouver, British Columbia, Canada may increase the possibility of exposure to particulate matter at different size ranges, with concomitant potential negative health impacts. This pilot study identifies and quantifies train impacts on particulate matter (PM) concentrations at a single location. Field work was conducted during August and September 2014, with the attributes of a subset of passing trains confirmed visually, and the majority of passages identified with audio data...
January 23, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28121198/supercompensation-kinetics-of-physical-qualities-during-a-taper-in-team-sport-athletes
#15
Bruno Marrier, Julien Robineau, Julien Piscione, Mathieu Lacome, Alexis Peeters, Christophe Hausswirth, Jean-Benoît Morin, Yann Le Meur
PURPOSE: Peaking for major competition is considered critical for maximizing team sports performance. However, there is little scientific information available to guide coaches in prescribing efficient tapering strategies for team sports players. The aim of this study was to monitor the changes in physical performance in elite team sports players during a 3-week taper following a pre-season training camp. METHODS: Ten male international rugby sevens players were tested before (Pre) and after (Post) a 4-week pre-season training camp focusing on high-intensity training and strength training with moderate loads, and once each week during a subsequent 3-week taper (T1, T2, T3)...
January 25, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28111831/qtc-interval-in-patients-with-multiple-sclerosis-an-inference-from-the-insula-of-reil
#16
G Turri, M Calabrese, E Pancheri, S Monaco, A Gajofatto, V Marafioti
BACKGROUND AND PURPOSE: The aim of this study was to investigate the correlation between the duration of the QTc interval and the brain lesion load at the level of the structures involved in superior autonomic control (insula, cingulate cortex and amygdala-hippocampus) in multiple sclerosis (MS) patients. METHODS: Thirty-one consecutive patients with relapsing-remitting MS were recruited. The QT interval was measured manually in all 12 leads by a single blinded observer, with the longest QT value adjusted for heart rate by using the Bazett's formula...
January 23, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28106721/exercise-induced-oxidative-stress-responses-in-the-pediatric-population
#17
REVIEW
Alexandra Avloniti, Athanasios Chatzinikolaou, Chariklia K Deli, Dimitris Vlachopoulos, Luis Gracia-Marco, Diamanda Leontsini, Dimitrios Draganidis, Athanasios Z Jamurtas, George Mastorakos, Ioannis G Fatouros
Adults demonstrate an upregulation of their pro- and anti-oxidant mechanisms in response to acute exercise while systematic exercise training enhances their antioxidant capacity, thereby leading to a reduced generation of free radicals both at rest and in response to exercise stress. However, less information exists regarding oxidative stress responses and the underlying mechanisms in the pediatric population. Evidence suggests that exercise-induced redox perturbations may be valuable in order to monitor exercise-induced inflammatory responses and as such training overload in children and adolescents as well as monitor optimal growth and development...
January 17, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28103895/feasibility-of-antiretroviral-treatment-monitoring-in-the-era-of-decentralized-hiv-care-a-systematic-review
#18
REVIEW
Minh D Pham, Lorena Romero, Bruce Parnell, David A Anderson, Suzanne M Crowe, Stanley Luchters
BACKGROUND: Regular monitoring of HIV patients who are receiving antiretroviral therapy (ART) is required to ensure patient benefits and the long-term effectiveness and sustainability of ART programs. Prompted by WHO recommendations for expansion and decentralization of HIV treatment and care in low and middle income countries, we conducted a systematic review to assess the feasibility of treatment monitoring in these settings. METHODS: A comprehensive search strategy was developed using a combination of MeSH and free text terms relevant to HIV treatment and care, health service delivery, health service accessibility, decentralization and other relevant terms...
January 19, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28101145/impact-of-physical-activity-and-mechanical-loading-on-biomarkers-typically-used-in-osteoarthritis-assessment-current-concepts-and-knowledge-gaps
#19
REVIEW
Nicole M Cattano, Jeffrey B Driban, Kenneth L Cameron, Michael R Sitler
There is an ongoing need to develop prognostic and diagnostic biomarkers for osteoarthritis (OA). Understanding how biomarkers change in response to physical activity may be vital for understanding if a patient has a joint that is failing to adapt to a given loading stimulus. The purpose of this review is to describe how biomarker changes after joint loading may help detect early OA and determine prognosis. This may help to inform and more specifically target interventions and clinical trials. We conducted a critical review of the relevant literature that was published to January 2016...
January 2017: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/28095061/methods-of-monitoring-training-load-and-their-relationships-to-changes-in-fitness-and-performance-in-competitive-road-cyclists
#20
Dajo Sanders, Grant Abt, Matthijs K Hesselink, Tony Myers, Ibrahim Akubat
PURPOSE: The aim of this study was to assess the dose-response relationships between different training load methods and aerobic fitness and performance in competitive road cyclists. METHOD: Training data from 15 well-trained competitive cyclists were collected during a 10-week (December - March) pre-season training period. Before and after the training period, participants underwent a laboratory incremental exercise test with gas exchange and lactate measures and a performance assessment using an 8-min time trial (8MT)...
January 17, 2017: International Journal of Sports Physiology and Performance
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