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Exercise nutrition protein

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https://www.readbyqxmd.com/read/27922941/exercise-training-ameliorates-glucosamine-induced-insulin-resistance-in-ovariectomized-rats
#1
Chung-Hwan Chen, Tsang-Hai Huang, Tsung-Lin Cheng, Chi-Fen Chang, Chau-Zen Wang, Meng-Hsing Wu, Lin Kang
OBJECTIVE: Glucosamine (GlcN), which has been reported to induce insulin resistance (IR), is a popular nutritional supplement used to treat osteoarthritis in menopausal women. We previously demonstrated that GlcN treatment caused IR in ovariectomized rats by reducing the expression of glucose transport protein subtype 4 (GLUT-4) in skeletal muscle. In the present study, we hypothesized that endurance exercise training can reverse GlcN-induced IR. METHODS: Fifty female rats were randomly divided into five groups with 10 rats in each group: (1) sham-operated group; (2) sham-operated group with GlcN treatment for 14 days; (3) ovariectomy (OVX) group; (4) OVX with GlcN treatment; and (5) OVX with GlcN treatment followed by exercise training (running program) for 8 weeks...
December 5, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27901247/anabolic-steroids-for-rehabilitation-after-hip-fracture-in-older-people
#2
Vaqas Farooqi, Maayken E L van den Berg, Ian D Cameron, Maria Crotty
BACKGROUND: Hip fracture occurs predominantly in older people, many of whom are frail and undernourished. After hip fracture surgery and rehabilitation, most patients experience a decline in mobility and function. Anabolic steroids, the synthetic derivatives of the male hormone testosterone, have been used in combination with exercise to improve muscle mass and strength in athletes. They may have similar effects in older people who are recovering from hip fracture. OBJECTIVES: To examine the effects (primarily in terms of functional outcome and adverse events) of anabolic steroids after surgical treatment of hip fracture in older people...
September 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/27865349/whey-protein-increases-muscle-weight-gain-through-inhibition-of-oxidative-effects-induced-by-resistance-exercise-in-rats
#3
Kely R Teixeira, Marcelo E Silva, Wanderson G de Lima, Maria L Pedrosa, Fabiano K Haraguchi
Whey protein (WP) is known for its nutritional value and antioxidant properties. The aim of this study was to evaluate whether the antioxidant properties of WP could contribute to muscle weight gain in response to resistance exercise (RE). We hypothesized that WP ingestion could increase muscle weight gain in rats subjected to an RE program, through inhibition of oxidative effects induced by high-intensity RE. Thirty-two male Fischer rats were randomly assigned to control sedentary, control exercised, WP sedentary, and WP exercised groups (n=8/group)...
October 2016: Nutrition Research
https://www.readbyqxmd.com/read/27837349/comparison-of-body-composition-and-nutrients-deficiencies-between-portuguese-rink-hockey-players
#4
Maria-Raquel G Silva, Hugo-Henrique Silva
: We evaluated dietary intake and body composition of child and adolescent rink-hockey players and controls. Seventy-two male rink-hockey players (38 children and 34 adolescents) and 79 male controls (43 children and 36 adolescents) were evaluated in order to collect training data, detailed dietary intake and body composition. Rink-hockey players presented significantly lower body fat (BF) and higher fat-free mass (FFM) than controls. Mean intakes of carbohydrate and protein were considered to be adequate, but mean intakes of fat were above the recommended levels in athletes...
November 12, 2016: European Journal of Pediatrics
https://www.readbyqxmd.com/read/27829485/the-impact-of-doubling-dairy-or-plant-based-foods-on-consumption-of-nutrients-of-concern-and-proper-bone-health-for-adolescent-females
#5
Elieke Demmer, Christopher J Cifelli, Jenny A Houchins, Victor L Fulgoni
OBJECTIVE: To determine the effects of increasing plant-based foods v. dairy foods on energy and nutrients of concern in adolescent females via diet modelling exercises. DESIGN: Data from the National Health and Nutrition Examination Survey (NHANES) were used to compare nutrient intakes from usual diet with those from three dietary scenarios that increased current intakes by 100 % of the following: (i) plant-based foods; (ii) protein-rich plant-based foods; and (iii) milk, cheese and yoghurt...
November 10, 2016: Public Health Nutrition
https://www.readbyqxmd.com/read/27818732/evaluation-of-some-biochemical-parameters-and-brain-oxidative-stress-in-experimental-rats-exposed-chronically-to-silver-nitrate-and-the-protective-role-of-vitamin-e-and-selenium
#6
Mouna Gueroui, Zine Kechrid
Due to undesirable hazardous interactions with biological systems, this investigation was undertaken to evaluate the effect of chronic exposure to silver on certain biochemical and some oxidative stress parameters with histopathological examination of brain, as well as the possible protective role of selenium and/or vitamin E as nutritional supplements. Thirty six male rats were divided into six groups of six each: the first group used as a control group. Group II given both vitamin E (400 mg/kg) of diet and selenium (Se) (1 mg/L) in their drinking water...
October 2016: Toxicological Research
https://www.readbyqxmd.com/read/27799693/a-study-on-macronutrient-self-selection-after-acute-aerobic-exercise-in-college-females
#7
Tae-Young Kim, Min-Jeong Kim, Ik-Rae Cho, Yu-Mi Won, Mi-Kyung Han, Kon-Nym Jung, Sang-Ho Lee, Jae-Hee Lee, Ji-Hyoung Chin, Jae-Hun Roh, Seung-Hi Min, Taek-Kyun Lee, Hyo-Joo Park, Kwon Jang, Se-Jeong Kwon, Suh-Jung Kang, Mi-Ae Shin, Hu-Nyun Kim, Jae-Seung Hong, Eun-Hi Choi, Nam-Il An, Ji-Hyuk Kim, Mi-Suk Kim
[Purpose] This study was conducted to determine whether acute aerobic exercise (climbing) is associated with changes in the dietary intake pattern. [Subjects and Methods] Food intake and physical activity data for 15 female college students were sampled for 3 days and categorized according to routine activity or high-intensity activity such as hiking. Nutrient intake based on the data was analyzed using a nutrition program. [Results] Carbohydrate and protein intake was significantly decreased after exercise compared to before acute aerobic exercise, but lipid intake showed no significant difference...
September 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27798441/runner-s-diarrhea-what-is-it-what-causes-it-and-how-can-it-be-prevented
#8
Erick P de Oliveira
PURPOSE OF REVIEW: Runner's diarrhea is an acute exercise-induced diarrhea. Usually, this is not a pathological situation but it can affect performance. This review focuses on the discussion of the main causes of runner's diarrhea and nutritional recommendations to prevent it. RECENT FINDINGS: Although based on limited data, multiple transportable carbohydrate intake during exercise instead of glucose alone can be recommended for preventing the urge to defecate and (possibly) diarrhea...
October 27, 2016: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/27798330/soy-dairy-protein-blend-or-whey-protein-isolate-ingestion-induces-similar-postexercise-muscle-mechanistic-target-of-rapamycin-complex-1-signaling-and-protein-synthesis-responses-in-older-men
#9
Michael S Borack, Paul T Reidy, Syed H Husaini, Melissa M Markofski, Rachel R Deer, Abigail B Richison, Bradley S Lambert, Mark B Cope, Ratna Mukherjea, Kristofer Jennings, Elena Volpi, Blake B Rasmussen
BACKGROUND: Previous work demonstrated that a soy-dairy protein blend (PB) prolongs hyperaminoacidemia and muscle protein synthesis in young adults after resistance exercise. OBJECTIVE: We investigated the effect of PB in older adults. We hypothesized that PB would prolong hyperaminoacidemia, enhancing mechanistic target of rapamycin complex 1 (mTORC1) signaling and muscle protein anabolism compared with a whey protein isolate (WPI). METHODS: This double-blind, randomized controlled trial studied men 55-75 y of age...
October 26, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27789774/post-exercise-muscle-glycogen-resynthesis-in-humans
#10
Louise M Burke, Luc J C van Loon, John A Hawley
Since the pioneering studies conducted in the 1960s in which glycogen status was investigated utilizing the muscle biopsy technique, sports scientists have developed a sophisticated appreciation of the role of glycogen in cellular adaptation and exercise performance, as well as sites of storage of this important metabolic fuel. While sports nutrition guidelines have evolved during the past decade to incorporate sport-specific and periodized manipulation of carbohydrate (CHO) availability, athletes attempt to maximise muscle glycogen synthesis between important workouts or competitive events so that fuel stores closely match to the demands of the prescribed exercise...
October 27, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27765769/microvascular-endothelial-dysfunction-in-sedentary-obese-humans-is-mediated-by-nadph-oxidase-influence-of-exercise-training
#11
Justin D La Favor, Gabriel S Dubis, Huimin Yan, Joseph D White, Margaret A M Nelson, Ethan J Anderson, Robert C Hickner
OBJECTIVE: The objectives of this study were to determine the impact of in vivo reactive oxygen species (ROS) on microvascular endothelial function in obese human subjects and the efficacy of an aerobic exercise intervention on alleviating obesity-associated dysfunctionality. APPROACH AND RESULTS: Young, sedentary men and women were divided into lean (body mass index 18-25; n=14), intermediate (body mass index 28-32.5; n=13), and obese (body mass index 33-40; n=15) groups...
December 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27749714/the-relevance-of-nutrition-for-the-concept-of-cognitive-frailty
#12
Ligia J Dominguez, Mario Barbagallo
PURPOSE OF REVIEW: Physical and cognitive frailty are interrelated and synergistic syndromes more frequently seen in old age, which represent intermediate stages between aging successfully and disability. Poor nutrition is a fundamental determinant for both conditions, while various dietary components are proposed to prevent and/or improve them. This updated review discusses the possible influence of nutritional factors on cognitive frailty and its potential mediators. RECENT FINDINGS: Oxidative stress, low-grade systemic inflammation, neuroinflammation, and altered autophagy, all associated with obesity, metabolic syndrome and insulin resistance, are proposed mechanisms to explain the influence of nutrition on cognitive health...
September 28, 2016: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/27747847/the-acute-effect-of-exercise-modality-and-nutrition-manipulations-on-post-exercise-resting-energy-expenditure-and-respiratory-exchange-ratio-in-women-a-randomized-trial
#13
Hailee L Wingfield, Abbie E Smith-Ryan, Malia N Melvin, Erica J Roelofs, Eric T Trexler, Anthony C Hackney, Mark A Weaver, Eric D Ryan
BACKGROUND: The purpose of this study was to examine the effect of exercise modality and pre-exercise carbohydrate (CHO) or protein (PRO) ingestion on post-exercise resting energy expenditure (REE) and respiratory exchange ratio (RER) in women. METHODS: Twenty recreationally active women (mean ± SD; age 24.6 ± 3.9 years; height 164.4 ± 6.6 cm; weight 62.7 ± 6.6 kg) participated in this randomized, crossover, double-blind study. Each participant completed six exercise sessions, consisting of three exercise modalities: aerobic endurance exercise (AEE), high-intensity interval running (HIIT), and high-intensity resistance training (HIRT); and two acute nutritional interventions: CHO and PRO...
December 2015: Sports Medicine—Open
https://www.readbyqxmd.com/read/27698953/training-enhances-immune-cells-mitochondrial-biosynthesis-fission-fusion-and-their-antioxidant-capabilities-synergistically-with-dietary-docosahexaenoic-supplementation
#14
Carla Busquets-Cortés, Xavier Capó, Miquel Martorell, Josep A Tur, Antoni Sureda, Antoni Pons
Exercise training induces adaptations in mitochondrial metabolism, dynamics, and oxidative protection. Omega-3 fatty acids change membrane lipid composition and modulate mitochondrial function. The aim was to investigate the effect of 8-week training and docosahexaenoic acid (DHA) supplementation (1.14 g/day) on the mitochondria dynamics and antioxidant status in peripheral blood mononuclear cells (PBMCs) from sportsmen. Subjects were assigned to an intervention (N = 9) or placebo groups (N = 7) in a randomized double-blind trial...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27670605/protein-supplementation-does-not-significantly-augment-the-effects-of-resistance-exercise-training-in-older-adults-a-systematic-review
#15
REVIEW
Danielle K Thomas, Marcus A Quinn, David H Saunders, Carolyn A Greig
BACKGROUND AND AIMS: Physical activity and nutritional supplementation interventions may be used to ameliorate age-related loss of skeletal muscle mass and function. Previous reviews have demonstrated the beneficial effects of resistance exercise training (RET) combined with protein or essential amino acids (EAA) in younger populations. Whether or not older adults also benefit is unclear. The aim of this review was to determine whether regular dietary supplementation with protein/EAA during a RET regimen augments the effects of RET on skeletal muscle in older adults...
October 1, 2016: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/27669823/recruitment-of-older-adults-with-type-2-diabetes-into-a-community-based-exercise-and-nutrition-randomised-controlled-trial
#16
Eliza G Miller, Caryl A Nowson, David W Dunstan, Deborah A Kerr, Vicky Solah, David Menzies, Robin M Daly
BACKGROUND: Recruitment of participants into long-term community-based lifestyle intervention trials, particularly adults with a chronic disease, is often slow and challenging. Currently there is limited data on successful recruitment strategies suitable for older adults with type 2 diabetes into community-based exercise and nutrition programs, and no information on cost estimates associated with such recruitment. The aim of this report is to describe the recruitment strategies used and the success of each approach in recruiting older adults with type 2 diabetes into a 6-month community-based exercise and nutritional supplementation randomised controlled trial (RCT)...
September 26, 2016: Trials
https://www.readbyqxmd.com/read/27622178/comparison-in-adherence-to-osteoporosis-guidelines-according-to-bone-health-status-in-korean-adult
#17
Hee-Sook Lim, Soon-Kyung Kim, Hae-Hyeog Lee, Dong Won Byun, Yoon-Hyung Park, Tae-Hee Kim
BACKGROUND: Osteoporosis one of the most serious disease to decrease the quality of life and cause economic loss. Thus, prevention of osteoporosis has become an important health concern. The study examined in adherence to osteoporosis guidelines and compared the levels of adherence to osteoporosis guidelines between bone health status in Korean adult. METHODS: This study used data from a nationally represented sample of Koreans (n=3,419) from 2008 to 2011 Korea National Health and Nutrition Examination Survey...
August 2016: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/27621662/curcumin-prevents-muscle-damage-by-regulating-nf-%C3%AE%C2%BAb-and-nrf2-pathways-and-improves-performance-an-in-vivo-model
#18
Kazim Sahin, Ragip Pala, Mehmet Tuzcu, Oguzhan Ozdemir, Cemal Orhan, Nurhan Sahin, Vijaya Juturu
PURPOSE: Exercise (Ex) increases reactive oxygen species and impairs antioxidant defense systems. Recent data suggest that curcumin (CW) possesses peroxisome proliferator-activated receptor gamma activity and anti-inflammatory properties. Therefore, this study was designed to investigate the effects of CW supplementation on Ex performance, endurance, and changes in serum and muscle proteins in rats after exhaustive Ex. MATERIALS AND METHODS: Twenty-eight (28) male Wistar rats (age: 8 weeks and body weight: 180±20 g) were divided into four treatment groups: 1) control (C; no Ex), 2) C + CW (no Ex + CW), 3) C + Ex, and 4) C + Ex + CW (Ex + CW)...
2016: Journal of Inflammation Research
https://www.readbyqxmd.com/read/27615123/nutritional-supplement-use-by-dutch-elite-and-sub-elite-athletes-does-receiving-dietary-counselling-make-a-difference
#19
Floris C Wardenaar, Ingrid Jm Ceelen, Jan-Willem Van Dijk, Roland Wj Hangelbroek, Lore Van Roy, Britte Van der Pouw, Jeanne Hm De Vries, Marco Mensink, Renger F Witkamp
The use of nutritional supplements is highly prevalent among athletes. In this cross-sectional study we assessed the prevalence of nutritional supplement use by a large group of Dutch competitive athletes in relation to dietary counselling. A total of 778 athletes (407 males and 371 females) completed a web-based questionnaire about the use of nutritional supplements. Log-binomial regression models were applied to estimate crude and adjusted prevalence ratios (PR) for the use of individual nutritional supplements in athletes receiving dietary counselling as compared to athletes not receiving dietary counselling...
September 6, 2016: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/27583709/overview-on-nutritional-issues-in-bariatric-surgery
#20
Ronan Thibault, Claude Pichard
PURPOSE OF REVIEW: In the context of the worldwide obesity epidemic, bariatric surgery is the only therapy associated with a sustainable weight loss and to midterm prevention of obesity-related complications. However, nutritional and behavioral multidisciplinary medical preparation, as well as long-term postoperative nutritional follow-up, is strongly advised to avoid postoperative surgical, nutritional, or psychiatric complications. RECENT FINDINGS: Due to a long history of restrictive diets and large body weight fluctuations, preoperative nutritional assessment and correction of vitamin and trace elements deficiencies are mandatory...
November 2016: Current Opinion in Clinical Nutrition and Metabolic Care
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