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https://www.readbyqxmd.com/read/28212449/energy-intake-and-energy-expenditure-of-pre-professional-female-contemporary-dancers
#1
Meghan A Brown, Glyn Howatson, Edel Quin, Emma Redding, Emma J Stevenson
Many athletes in aesthetic and weight dependent sports are at risk of energy imbalance. However little is known about the exercise and eating behaviours of highly trained dance populations. This investigation sought to determine the energy intake and energy expenditure of pre-professional female contemporary dancers. Twenty-five female contemporary dance students completed the study. Over a 7-day period, including five week days (with scheduled dance training at a conservatoire) and two weekend days (with no scheduled dance training at the conservatoire), energy intake (self-reported weighed food diary and 24 h dietary recall) and expenditure (tri-axial accelerometry) were recorded...
2017: PloS One
https://www.readbyqxmd.com/read/28210805/transcutaneous-carbon-dioxide-application-accelerates-muscle-injury-repair-in-rat-models
#2
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/28208581/macronutrient-intakes-in-553-dutch-elite-and-sub-elite-endurance-team-and-strength-athletes-does-intake-differ-between-sport-disciplines
#3
Floris Wardenaar, Naomi Brinkmans, Ingrid Ceelen, Bo Van Rooij, Marco Mensink, Renger Witkamp, Jeanne De Vries
Web-based 24-h dietary recalls and questionnaires were obtained from 553 Dutch well-trained athletes. The total energy and macronutrient intake was compared between discipline-categories (endurance, team, and strength) within gender, and dietary inadequacy, i.e., too low or high intakes, according to selected recommendations and guidelines, was evaluated by applying a probability approach. On average, 2.83 days per person were reported with a mean energy intake of 2566-2985 kcal and 1997-2457 kcal per day, for men and women, respectively...
February 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28185460/-daratumumab-hope-for-myeloma-patients-a-challenge-for-clinical-laboratories
#4
T Jelínek, M Kořístka, Z Čermáková, R Hájek
Monoclonal antibodies represent a standard part in the treatment of oncologic patients, but their efficacy in multiple myeloma used to be unsatisfactory. Daratumumab monotherapy was approved by the American FDA in 2015, after unprecedented results were obtained in a heavily pre-treated group of patients. In 2016 daratumumab was approved in combination with lenalidomide and dexamethasone, or bortezomib and dexamethasone, for the treatment of myeloma patients who have received at least one prior therapy.The toxicity of the drug is low, and is dominated by infusion-related reactions in more or less half of patients...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28181891/-chronic-traumatic-encephalopathy-an-old-acquaintance-in-athletes
#5
E G B Vijverberg, A C M Pijnenburg, P Scheltens, Y A L Pijnenburg
- Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease caused by repetitive head injuries like those seen in sports such as boxing, American football and soccer.- The clinical features of CTE are a range of cognitive, psychiatric and motor symptoms, and histopathology involves deposits of hyperphosphorylated tau protein and the presence of TAR DNA-binding protein (TDP-43) with relatively little beta-amyloid.- CTE is difficult to differentiate clinically from Alzheimer's disease, frontotemporal dementia and psychiatric disorders because of the major symptom overlap between these conditions...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28150478/effects-of-silk-peptides-administration-on-fat-utilization-over-a-whole-day-in-mice
#6
Jisu Kim, Jonghoon Park, Bokyung Kim, Chi-Ho Lee, Kiwon Lim
Purpose: The aim of the present narrative review was to consider the evidence on the timing, optimal dose and intake duration of the main dietary supplements β-alanine, nitrate, caffeine, creatine, sodium bicarbonate, carbohydrate and protein. Methods: This review article will focuses on timing, optimal dose and intake duration of main dietary supplements for consuming. Results: This paper reviewed the evidence to determine the optimal time, efficacy doses and intake duration for sports supplements verified by scientific evidence that report a performance enhancing effect in both situation of laboratory and training settings...
December 31, 2016: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28150472/timing-optimal-dose-and-intake-duration-of-dietary-supplements-with-evidence-based-use-in-sports-nutrition
#7
REVIEW
Alireza Naderi, Erick P de Oliveira, Tim N Ziegenfuss, Mark E T Willems
Purpose: The aim of the present narrative review was to consider the evidence on the timing, optimal dose and intake duration of the main dietary supplements β-alanine, nitrate, caffeine, creatine, sodium bicarbonate, carbohydrate and protein. Methods: This review article will focuses on timing, optimal dose and intake duration of main dietary supplements for consuming. Results: This paper reviewed the evidence to determine the optimal time, efficacy doses and intake duration for sports supplements verified by scientific evidence that report a performance enhancing effect in both situation of laboratory and training settings...
31, 2016: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28150163/fatigue-and-recovery-in-rugby-a-review
#8
REVIEW
Francisco Tavares, Tiaki Brett Smith, Matthew Driller
The physical demands and combative nature of rugby lead to notable levels of muscle damage. In professional rugby, athletes only have a limited timeframe to recover following training sessions and competition. Through the implementation of recovery strategies, sport scientists, practitioners and coaches have sought to reduce the effect of fatigue and allow athletes to recover faster. Although some studies demonstrate that recovery strategies are extensively used by rugby athletes, the research remains equivocal concerning the efficacy of recovery strategies in rugby...
February 2, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28149429/physiological-nutritional-and-performance-profiles-of-brazilian-jiu-jitsu-athletes
#9
Leonardo V Andreato, Jonatas Fs Santos, João Vdc Esteves, Valeria Lg Panissa, Ursula F Julio, Emerson Franchini
This study analysed the physiological, nutritional and performance profiles of athletes practicing Brazilian jiu-jitsu. To this end, 15 athletes that practiced Brazilian jiu-jitsu (aged: 28 ± 5 years; 8 brown belts and 7 black belts; training experience: 11 ± 4 years) underwent anthropometric measurements (body composition and somatotype), dietary evaluation (24 h recall) and physical fitness tests (movement time, dynamometer handgrip, kimono grip strength, vertical jump and sit-and-reach tests). The athletes had 12...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28134840/a2-milk-enhances-dynamic-muscle-function-following-repeated-sprint-exercise-a-possible-ergogenic-aid-for-a1-protein-intolerant-athletes
#10
Ben Kirk, Jade Mitchell, Matthew Jackson, Farzad Amirabdollahian, Omid Alizadehkhaiyat, Tom Clifford
Hyperaminoacidemia following ingestion of cows-milk may stimulate muscle anabolism and attenuate exercise-induced muscle damage (EIMD). However, as dairy-intolerant athletes do not obtain the reported benefits from milk-based products, A2 milk may offer a suitable alternative as it lacks the A1-protein. This study aimed to determine the effect of A2 milk on recovery from a sports-specific muscle damage model. Twenty-one male team sport players were allocated to three independent groups: A2 milk (n = 7), regular milk (n = 7), and placebo (PLA) (n = 7)...
January 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28121472/plasma-creatine-kinetics-after-ingestion-of-microencapsulated-creatine-monohydrate-with-enhanced-stability-in-aqueous-solutions
#11
Michelle Hone, Robert M Kent, Alessandro Scotto di Palumbo, Sinead B Bleiel, Giuseppe De Vito, Brendan Egan
Creatine monohydrate represents one of the largest sports supplement markets. Enhancing creatine (CRE) stability in aqueous solutions, such as with microencapsulation, represents innovation potential. Ten physically active male volunteers were randomly assigned in a double-blind design to either placebo (PLA) (3-g maltodextrin; n = 5) or microencapsulated CRE (3-g creatine monohydrate; n = 5) conditions. Experimental conditions involved ingestion of the samples in a 70-mL ready-to-drink format. CRE was delivered in a novel microencapsulation matrix material consisting entirely of hydrolyzed milk protein...
July 4, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28121323/ingestion-of-soy-whey-blended-protein-augments-sports-performance-and-ameliorates-exercise-induced-fatigue-in-a-rat-exercise-model
#12
Guangxu Ren, Suqing Yi, Hongru Zhang, Jing Wang
This study sought to determine the effects of soy-whey blended protein supplementation on sports performance and related biochemical parameters after long-term training. After a week of adaptation, eighteen 6-week-old male Wistar rats were randomly assigned to 3 groups: the standard chow diet plus whey protein (Whey) group, the standard chow diet plus soy-whey blended protein (BP) group and the standard chow diet only (control) group. Each group included 6 rats for the seven-week experiment. Before the experiment, the baseline values of body weight, grasping force and time to exhaustion due to the loaded-swimming test were recorded for each group...
January 25, 2017: Food & Function
https://www.readbyqxmd.com/read/28103427/repeated-maximal-intensity-hypoxic-exercise-superimposed-to-hypoxic-residence-boosts-skeletal-muscle-transcriptional-responses-in-elite-team-sport-athletes
#13
Franck Brocherie, Grégoire P Millet, Gommaar D'Hulst, Ruud Van Thienen, Louise Deldicque, Olivier Girard
AIM: To determine whether repeated maximal-intensity hypoxic exercise induces larger beneficial adaptations on the hypoxia inducible factor-1α pathway and its target genes than similar normoxic exercise, when combined with chronic hypoxic exposure. METHODS: Lowland elite male team-sport athletes underwent 14 days of passive normobaric hypoxic exposure (≥14 h.day(-1) at Fi O2 14.5-14.2%) with the addition of six maximal-intensity exercise sessions either in normobaric hypoxia (Fi O2 ~14...
January 19, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28058459/-nutritional-supplements-in-sports-sense-nonsense-or-hazard
#14
Maria Kristina Parr, Sebastian Schmidtsdorff, Annette Sophie Kollmeier
The excessive sale of dietary supplements (DSs) has become a global multi-billion market as more and more people turn to DSs for a healthy lifestyle or for aesthetic reasons. DSs are also increasingly popular among athletes; 50-85% of recreational and 35-100% of competitive athletes report taking DSs, the latter more regularly. Unless pathological deficiencies are detected, the intake of DSs for recreational athletes is not recommended. While it may be advisable for competitive athletes to supplement their diet with certain macronutrients (proteins and carbohydrates), many micronutrients (vitamins, minerals) as well as allegedly performance enhancing DSs may only show minimal impact under specific conditions and for certain sports...
January 5, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28013404/degrons-of-yeast-and-mammalian-ornithine-decarboxylase-enzymes-make-potent-combination-for-regulated-targeted-protein-degradation
#15
Rushikesh G Joshi, C Ratna Prabha
Elevation of polyamine levels in eukaryotes leads to rapid degradation of ornithine decarboxylase (ODC), the first enzyme of polyamine biosynthesis pathway. ODC in yeast (yODC) has two domains, the Nα/β domain consisting of α/β barrel domain (α/β) preceded by an overhang of 50 residues at its N-terminus (N50) and β sheet domain at its C-terminus. Two degradation determinant signals or degrons in yODC sequence, namely the N50 and the antizyme-binding element (AzBE) housed in the α/β domain, are responsible for its degradation by proteasomes...
December 24, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27983629/influence-of-bovine-whey-protein-concentrate-and-hydrolysate-preparation-methods-on-motility-in-the-isolated-rat-distal-colon
#16
Julie E Dalziel, Rachel C Anderson, Shalome A Bassett, Catherine M Lloyd-West, Neill W Haggarty, Nicole C Roy
Whey protein concentrate (WPC) and hydrolysate (WPH) are protein ingredients used in sports, medical and pediatric formulations. Concentration and hydrolysis methods vary for whey sourced from cheese and casein co-products. The purpose of this research was to investigate the influence of whey processing methods on in vitro gastrointestinal (GI) health indicators for colonic motility, epithelial barrier integrity and immune modulation. WPCs from casein or cheese processing and WPH (11% or 19% degree of hydrolysis, DH) were compared for their effects on motility in a 1 cm section of isolated rat distal colon in an oxygenated tissue bath...
December 14, 2016: Nutrients
https://www.readbyqxmd.com/read/27951720/-involvement-of-piwi-interacting-rnas-in-cancerogenesis-via-the-regulation-of-gene-expression
#17
S Rybecká, K Štítkovcová, P Vychytilová-Faltejsková, O Slabý
BACKGROUND: In the past few years, a number of studies have suggested that small non-coding RNAs could be promising diagnostic, prognostic and predictive biomarkers in oncology. Recently, small RNAs interacting with PIWI proteins (piRNAs) have been described. These small RNAs regulate gene expression at transcriptional and post-transcriptional levels; however, they appear to be specifically involved in silencing the transposable elements LINE and SINE and are thus considered to contribute to genomic stability...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/27914605/simultaneous-detection-of-recombinant-growth-hormones-in-equine-plasma-by-liquid-chromatography-high-resolution-tandem-mass-spectrometry-for-doping-control
#18
Kin-Sing Wong, George H M Chan, Emmie N M Ho, Terence S M Wan
Growth hormone (GH), or somatotropin, is a protein that may enhance physical performance and facilitate growth and wound healing. For this reason, growth hormones and their recombinant analogues are prohibited in human sports by the World Anti-Doping Agency (WADA) and in horseracing under Article 6 of the International Agreement on Breeding, Racing and Wagering published by the International Federation of Horse Racing Authorities (IFHA). Identifying the illicit use of GHs in both human athletes and racehorses is challenging, especially when differentiating between endogenous and exogenous GHs, and between analogues of GH from different species...
December 23, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27903590/anterior-cruciate-ligament-derived-stem-cells-transduced-with-bmp2-accelerate-graft-bone-integration-after-acl-reconstruction
#19
Yohei Kawakami, Koji Takayama, Tomoyuki Matsumoto, Ying Tang, Bing Wang, Yutaka Mifune, James H Cummins, Ryan J Warth, Ryosuke Kuroda, Masahiro Kurosaka, Freddie H Fu, Johnny Huard
BACKGROUND: Strong graft-bone integration is a prerequisite for successful graft remodeling after reconstruction of the anterior cruciate ligament (ACL) using soft tissue grafts. Novel strategies to accelerate soft tissue graft-bone integration are needed to reduce the need for bone-tendon-bone graft harvest, reduce patient convalescence, facilitate rehabilitation, and reduce total recovery time after ACL reconstruction. HYPOTHESIS: The application of ACL-derived stem cells with enhanced expression of bone morphogenetic protein 2 (BMP2) onto soft tissue grafts in the form of cell sheets will both accelerate and improve the quality of graft-bone integration after ACL reconstruction in a rat model...
November 30, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27900179/procollagen-markers-in-microdialysate-can-predict-patient-outcome-after-achilles-tendon-rupture
#20
Md Abdul Alim, Simon Svedman, Gunnar Edman, Paul W Ackermann
OBJECTIVE: Patients who sustain acute Achilles tendon rupture (ATR) exhibit variable and mostly impaired long-term functional, and patient-reported outcomes. However, there exists a lack of early predictive markers of long-term outcomes to facilitate the development of improved treatment methods. The aim of this study was to assess markers of tendon callus production in patients with ATR in terms of outcome, pain, and fatigue. STUDY DESIGN AND SETTING: Prospective cohort study; level of evidence 2...
2016: BMJ Open Sport & Exercise Medicine
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