keyword
MENU ▼
Read by QxMD icon Read
search

Endurance performance

keyword
https://www.readbyqxmd.com/read/29148128/step-ergometer-training-augmented-with-functional-electrical-stimulation-in-individuals-with-chronic-spinal-cord-injury-a-feasibility-study
#1
Candy Tefertiller, Don Gerber
Spinal cord injury (SCI) often results in loss of upright mobility and independence subsequently challenging rehabilitation practitioners for meaningful intervention strategies. The objective of this study was to evaluate the feasibility and potential impact on walking function of the stimulation and ergometer training protocol (STEP) in chronic SCI. Fourteen individuals with a chronic motor incomplete SCI (>1-year post injury) were enrolled in the study. The intervention consisted of a 12-week walking training program delivered three times per week from 20 up to 45 min in combination with 10 channels of FES on a step ergometer...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29146412/skeletal-muscle-overexpression-of-nicotinamide-phosphoribosyl-transferase-in-mice-coupled-with-voluntary-exercise-augments-exercise-endurance
#2
Sheila R Costford, Bram Brouwers, Meghan E Hopf, Lauren M Sparks, Mauro Dispagna, Ana P Gomes, Heather H Cornnell, Chris Petucci, Peter Phelan, Hui Xie, Fanchao Yi, Glenn A Walter, Timothy F Osborne, David A Sinclair, Randall L Mynatt, Julio E Ayala, Stephen J Gardell, Steven R Smith
OBJECTIVE: Nicotinamide phosphoribosyl transferase (NAMPT) is the rate-limiting enzyme in the salvage pathway that produces nicotinamide adenine dinucleotide (NAD(+)), an essential co-substrate regulating a myriad of signaling pathways. We produced a mouse that overexpressed NAMPT in skeletal muscle (NamptTg) and hypothesized that NamptTg mice would have increased oxidative capacity, endurance performance, and mitochondrial gene expression, and would be rescued from metabolic abnormalities that developed with high fat diet (HFD) feeding...
November 6, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29141513/alternative-scapular-stabilization-exercises-to-target-strength-endurance-and-function-of-shoulders-in-tetraplegia-a-prospective-time-series-study
#3
Carolina Lins, Alex Castro, Giovanna I S Medina, Eliza R F B M Azevedo, Bruno S Donato, Marina S S Chagas, Janaína Roland Tancredo, Letícia Vargas de Almeida, Alberto Cliquet
OBJECTIVE: Scapular stabilization exercises (SSE) are well-established for the able-bodies. The aim of the current study is to access the potential benefits of SSE on isometric internal and external rotator strength, endurance and function of the shoulder in persons with tetraplegia, throughout a 12-week exercise program consisting of five resisted movements with elastic bands. DESIGN: Prospective non-controlled intervention study. Setting/Participants/Interventions: A convenience sample of 17 subjects (age, 40...
November 16, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29140314/self-perceived-fatigue-in-adolescents-in-relation-to-body-composition-and-physical-outcomes
#4
Stijn Vantieghem, Ivan Bautmans, Jonathan Tresignie, Steven Provyn
BackgroundIncreased self-perceived fatigue (SpF) has already been identified in chronic conditions such as obesity, but it is also a growing problem in school-attending adolescents (±25%). This study tried to link body composition to SpF and physical activity/performance. Additionally, indicators for fatigue were determined.MethodsA total of 452 adolescents were recruited. Body composition was measured and physical activity, physical performance, and SpF were assessed. Based on the total SpF (Multidimensional Fatigue Inventory) outcomes, three groups were created: low fatigue (LF) medium fatigue (MF) and high fatigue (HF)...
November 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29139646/physical-fitness-and-digit-ratio-2d-4d-in-male-students-from-wroc%C3%A5-aw-poland
#5
Slawomir Koziel, Marek Kociuba Mail, Raja Chakraborty, Zofia Ignasiak
There is sex-difference in humans as regards aerobic efficiency, physical strength and endurance and the sex difference is greatly dependent upon differential concentration of testosterone during different phases of growth and development including the intrauterine phase or prenatal growth. Second-to-fourth digit lengths ratio (2D:4D) is an putative indicator of prenatal testosterone exposure. Lower 2D:4D indicates higher prenatal testosterone exposure and vice versa. Males generally have lower 2D:4D than females...
March 2017: Collegium Antropologicum
https://www.readbyqxmd.com/read/29137117/a-systematic-review-and-meta-analysis-of-proteomics-literature-on-the-response-of-human-skeletal-muscle-to-obesity-type-2-diabetes-mellitus-t2dm-versus-exercise-training
#6
REVIEW
Kanchana Srisawat, Sam O Shepherd, Paulo J Lisboa, Jatin G Burniston
We performed a systematic review and meta-analysis of proteomics literature that reports human skeletal muscle responses in the context of either pathological decline associated with obesity/T2DM and physiological adaptations to exercise training. Literature was collected from PubMed and DOAJ databases following PRISMA guidelines using the search terms 'proteom*', and 'skeletal muscle' combined with either 'obesity, insulin resistance, diabetes, impaired glucose tolerance' or 'exercise, training'. Eleven studies were included in the systematic review, and meta-analysis was performed on a sub-set (four studies) of the reviewed literature that reported the necessary primary data...
November 11, 2017: Proteomes
https://www.readbyqxmd.com/read/29136482/impact-of-an-elementary-school-based-intervention-on-physical-activity-time-and-aerobic-capacity-georgia-2013-2014
#7
Hayley A Braun, Christi M Kay, Patricia Cheung, Paul S Weiss, Julie A Gazmararian
OBJECTIVES: The objectives of this study were to (1) determine the impact of a 1-year elementary school physical activity intervention on changes in teacher-reported school-based physical activity time and (2) assess the relationship between these changes and changes in student aerobic capacity. METHODS: HealthMPowers, a nonprofit organization, provided a multicomponent physical activity intervention to 3479 students in 39 schools in Georgia during 2013-2014. HealthMPowers administered a survey to faculty members before (August 2013) and after (May 2014) the intervention to measure student physical activity times...
November 2017: Public Health Reports
https://www.readbyqxmd.com/read/29135398/the-effect-of-obesity-on-dyspnea-exercise-capacity-walk-work-and-workload-in-patients-with-copd
#8
Hülya Şahin, İlknur Naz, Yelda Varol, Berna Kömürcüoğlu
Introduction: COPD and obesity are major public health problems that cause mortality and morbidity all over the world. The combined of COPD and obesity is predicted to increase further in the coming years. Obesity primarily affects the pulmonary system by altering respiratory functions, exercise capacity, pulmonary gas exchange, and endurance and power of respiratory muscles. In this study, we aimed to compare the dyspnea sensation, exercise capacity, walk work and workload in obese COPD patients compared to preobese and normal overweight COPD patients...
September 2017: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/29134974/differences-in-physical-physiological-and-motor-performance-traits-between-volleyball-and-basketball-athletes-in-a-university-in-ghana
#9
A Obour, M O Moses, B Baffour-Awuah, B Asamoah, P K Sarpong, F Osei, L G Akwa, E J Appiah
Physical, physiological and motor performance traits play substantial role in both volleyball (VB) and basketball(BB) competitions. The differences in these traits among University athletes in Ghana have not been reported. Hence, thisstudy documents and compares the physical, physiological and motor performance traits of VB and BB university athletes.Purposive sampling technique involving thirty-five university athletes (24 males and 11 females) with mean age of 21.77 ±2.03years was used. Height, weightn, waist and hip circumferences, waist to hip ratio (WHR), body mass index (BMI), heartrate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP), shoulder muscular endurance (SME), abdominal muscular endurance (AME), left and right Arm Strength, Leg Power, Reaction time, Agility and Speed traits were measured...
June 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/29134050/mental-strategies-predict-performance-and-satisfaction-with-performance-among-soccer-players
#10
Magdalena Kruk, Jan Blecharz, Monika Boberska, Karolina Zarychta, Aleksandra Luszczynska
This study investigated the changes in mental strategies across the season and their effects on performance and satisfaction with individual performance. Data were collected three times: at the pre-season at Time 1 (T1; baseline), in the mid-season at Time 2 (T2; two-month follow-up), and at the end-of-season at Time 3 (T3; nine-month follow-up) among male soccer players (N = 97) aged 16-27. Athletes completed the questionnaires assessing the use of nine psychological strategies in competition and the level of satisfaction with individual performance...
October 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29131421/voltage-controlled-on-off-switching-of-ferromagnetism-in-manganite-supercapacitors
#11
Alan Molinari, Horst Hahn, Robert Kruk
The ever-growing technological demand for more advanced microelectronic and spintronic devices keeps catalyzing the idea of controlling magnetism with an electric field. Although voltage-driven on/off switching of magnetization is already established in some magnetoelectric (ME) systems, often the coupling between magnetic and electric order parameters lacks an adequate reversibility, energy efficiency, working temperature, or switching speed. Here, the ME performance of a manganite supercapacitor composed of a ferromagnetic, spin-polarized ultrathin film of La0...
November 13, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29130890/memristive-e%C3%AF-ects-in-oxygenated-amorphous-carbon-nanodevices
#12
Tobias Bachmann, Wabe W Koelmans, Prasad Jonnalagadda, Manuel Le Gallo, Claudia Santini, Abu Sebastian, Evangelos Eleftheriou, M F Craciun, C David Wright
Computing with resistive-switching (memristive) memory devices has shown much recent progress and offers an attractive route to circumvent the von-Neumann bottleneck, i.e. the separation of processing and memory, which limits the performance of conventional computer architectures. Due to their good scalability and nanosecond switching speeds, carbon-based resistive-switching memory devices could play an important role in this respect. However, devices based on elemental carbon, such as tetrahedral amorphous carbon or t-aC, typically suffer from a low cycling endurance...
November 13, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29129021/the-effect-of-natural-or-simulated-altitude-training-on-high-intensity-intermittent-running-performance-in-team-sport-athletes-a-meta-analysis
#13
REVIEW
Michael J Hamlin, Catherine A Lizamore, Will G Hopkins
BACKGROUND: While adaptation to hypoxia at natural or simulated altitude has long been used with endurance athletes, it has only recently gained popularity for team-sport athletes. OBJECTIVE: To analyse the effect of hypoxic interventions on high-intensity intermittent running performance in team-sport athletes. METHODS: A systematic literature search of five journal databases was performed. Percent change in performance (distance covered) in the Yo-Yo intermittent recovery test (level 1 and level 2 were used without differentiation) in hypoxic (natural or simulated altitude) and control (sea level or normoxic placebo) groups was meta-analyzed with a mixed model...
November 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29128143/influence-of-type-of-sport-on-cardiac-repolarization-assessed-by-electrocardiographic-t-wave-morphology-combination-score
#14
Susanne Glasius Tischer, Claus Graff, Christina Ellervik, Eva Prescott, Jørgen K Kanters, Hanne Kruuse Rasmusen
INTRODUCTION: Interpreting repolarization changes in the electrocardiograms of athletes present a clinical challenge. AIM: Assessment of cardiac repolarization by T-wave morphology using the Morphology Combination Score (MCS), and evaluate how this quantitative description of T-wave morphology was influenced by the sport performed. MATERIALS AND METHODS: Digital electrocardiograms of 469 young elite athletes were analyzed for T-wave asymmetry, flatness and notching, and combined in the MCS...
September 29, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29127759/is-irisin-the-new-player-in-exercise-induced-adaptations-or-not-a-2017-update
#15
REVIEW
Ioannis G Fatouros
Irisin is produced by a proteolytic cleavage of fibronectin type III domain-containing protein 5 (FNDC5) and has emerged as a potential mediator of exercise-induced energy metabolism. The purpose of this study was to review the results of studies that investigated irisin responses to acute and chronic exercise and provide an update. A comprehensive search in the databases of MEDLINE was performed (74 exercise studies). The focus of the analysis was on data concerning FNDC5 mRNA expression in skeletal muscle and circulating irisin concentration relatively to exercise mode, intensity, frequency and duration and the characteristics of the sample used...
November 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29127601/interpreting-adaptation-to-concurrent-compared-with-single-mode-exercise-training-some-methodological-considerations
#16
REVIEW
Jackson J Fyfe, Jeremy P Loenneke
Incorporating both endurance and resistance training into an exercise regime is termed concurrent training. While there is evidence that concurrent training can attenuate resistance training-induced improvements in maximal strength and muscle hypertrophy, research findings are often equivocal, with some suggesting short-term concurrent training may instead further enhance muscle hypertrophy versus resistance training alone. These observations have questioned the validity of the purported 'interference effect' on muscle hypertrophy with concurrent versus single-mode resistance training...
November 10, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29125913/standardized-kaempferia-parviflora-extract-enhances-exercise-performance-through-activation-of-mitochondrial-biogenesis
#17
Mi-Bo Kim, Taeyoon Kim, Changhee Kim, Jae-Kwan Hwang
Exercise enhances mitochondrial biogenesis in skeletal muscle. Increased mitochondrial function and content can contribute to the improvement in skeletal muscle function and the benefits of exercise by increasing the response to energy demands. The effect of standardized Kaempferia parviflora extract (KPE) on exercise performance was accessed in L6 myotubes and C57BL/6J mice. KPE significantly activated peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) and increased mitochondrial density in L6 myotubes...
November 10, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29122957/diminished-dynamic-cerebral-autoregulatory-capacity-with-forced-oscillations-in-mean-arterial-pressure-with-elevated-cardiorespiratory-fitness
#18
Lawrence Labrecque, Kevan Rahimaly, Sarah Imhoff, Myriam Paquette, Olivier Le Blanc, Simon Malenfant, Samuel J E Lucas, Damian M Bailey, Jonathan D Smirl, Patrice Brassard
The effect that cardiorespiratory fitness has on the dynamic cerebral autoregulatory capacity during changes in mean arterial pressure (MAP) remains equivocal. Using a multiple-metrics approach, challenging MAP across the spectrum of physiological extremes (i.e., spontaneous through forced MAP oscillations), we characterized dynamic cerebral autoregulatory capacity in 19 male endurance athletes and eight controls via three methods: (1) onset of regulation (i.e., time delay before an increase in middle cerebral artery (MCA) conductance [MCA blood velocity (MCAv)/MAP] and rate of regulation, after transient hypotension induced by sit-to-stand, and transfer function analysis (TFA) of MAP and MCAv responses during (2) spontaneous and (3) forced oscillations (5-min of squat-stand maneuvers performed at 0...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29120978/effect-of-load-carriage-on-tactical-performance-in-swat-operators
#19
J Matthew Thomas, Michael B Pohl, Robert Shapiro, Jason Keeler, Mark G Abel
Special Weapons and Tactics (SWAT) operators are specially trained personnel that are required to carry equipment to perform high risk tasks. Given the need to carry this equipment, it is important to understand the potentially deleterious effect that the additional load may have on tactical performance. Furthermore, it is important to identify physical fitness characteristics that are associated with the potential decrement in performance. Therefore, the purpose of this study was to evaluate the effect of load carriage on tactical physical ability and marksmanship, and to identify fitness characteristics associated with any decrement in performance...
November 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29119301/whole-body-vibration-added-to-treatment-as-usual-is-effective-in-adolescents-with-depression-a-partly-randomized-three-armed-clinical-trial-in-inpatients
#20
Heidrun Lioba Wunram, Stefanie Hamacher, Martin Hellmich, Maxi Volk, Franziska Jänicke, Franziska Reinhard, Wilhelm Bloch, Philipp Zimmer, Christine Graf, Eckhard Schönau, Gerd Lehmkuhl, Stephan Bender, Oliver Fricke
There is growing evidence for the effectiveness of exercise in the treatment of adult major depression. With regard to adolescents, clinical trials are scarce. Due to the inherent symptoms of depression (lack of energy, low motivation to exercise), endurance training forms could be too demanding especially in the first weeks of treatment. We hypothesized that an easy-to-perform passive muscular training on a whole body vibration (WBV) device has equal anti-depressive effects compared to a cardiovascular training, both administered as add-ons to treatment as usual (TAU)...
November 8, 2017: European Child & Adolescent Psychiatry
keyword
keyword
11047
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"