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Muscle nutrition

Débora Finger, Fábio Juner Lanferdini, Juliano Boufleur Farinha, Clarissa Müller Brusco, Lucas Helal, Francesco Pinto Boeno, Eduardo Lusa Cadore, Ronei Silveira Pinto
INTRODUCTION: Protein (PRO) combined with a carbohydrate (CHO) beverage may have an ergogenic effect on endurance performance. However, evidence regarding its efficacy on similar conditions to athletes' race day is still lacking. OBJECTIVE: To compare the effect of three different nutritional supplementation strategies on performance and muscle recovery in a duathlon protocol. METHODS: , 13 male athletes (29.7 ± 7.7 years) participated in three simulated Olympic-distance duathlons under three different, randomly assigned, supplementation regimens: carbohydrate drink (CHO, 75 g); isocaloric CHO plus protein drink (CHO+PRO, 60...
March 15, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Diego Moreno-Pérez, Carlo Bressa, María Bailén, Safa Hamed-Bousdar, Fernando Naclerio, Manuel Carmona, Margarita Pérez, Rocío González-Soltero, Maria Gregoria Montalvo-Lominchar, Claudia Carabaña, Mar Larrosa
Nutritional supplements are popular among athletes to improve performance and physical recovery. Protein supplements fulfill this function by improving performance and increasing muscle mass; however, their effect on other organs or systems is less well known. Diet alterations can induce gut microbiota imbalance, with beneficial or deleterious consequences for the host. To test this, we performed a randomized pilot study in cross-country runners whose diets were complemented with a protein supplement (whey isolate and beef hydrolysate) ( n = 12) or maltodextrin (control) ( n = 12) for 10 weeks...
March 10, 2018: Nutrients
Aline Marcadenti, Larissa Loures Mendes, Estela Iraci Rabito, Jaqueline da Silva Fink, Flávia Moraes Silva
BACKGROUND: There are many nutrition screening tools currently being applied in hospitals to identify risk of malnutrition. However, multivariate statistical models are not usually employed to take into account the importance of each variable included in the instrument's development. OBJECTIVE: To develop and evaluate the concurrent and predictive validities of a new screening tool of nutrition risk. METHODS: A prospective cohort study was developed, in which 4 nutrition screening tools were applied to all patients...
March 13, 2018: JPEN. Journal of Parenteral and Enteral Nutrition
Huakang Tu, Colin P Dinney, Yuanqing Ye, H Barton Grossman, Seth P Lerner, Xifeng Wu
Background: Patients with cancer are highly concerned about food choices and dietary supplements that may affect their treatment outcomes. Excess folic acid (synthetic folate) from supplements or fortification can lead to accumulation of unmetabolized folic acid in the systemic circulation and urine and may promote cancer growth, especially among those with neoplastic alterations. Objective: We investigated the prospective association between synthetic compared with natural folate intake and clinical outcomes in non-muscle-invasive bladder cancer (NMIBC), which is a highly recurrent disease...
February 1, 2018: American Journal of Clinical Nutrition
Kenji Kuzuhara, Kanako Katai, Tatsuya Hojo, Yoshihiko Fujisawa, Misaka Kimura, Yasuyoshi Yanagida, Yosuke Yamada, Junta Iguchi
Well-controlled seasonal distribution of training intensity appears to be an important variable for endurance athletes' success as competitors and/or for avoidance of overtraining. The aim of this study was to examine the interrelationships of training distribution, body composition, energy intake/expenditure, and rowing ergometer performance throughout the 2012-2013 season. In the present study of 15 collegiate male rowers, most of whom started rowing during their time at the university, we divided the 2012-2013 season (total 37 weeks) into 3 phases (off-season, December to mid-March, 16 weeks; pre-season, late March to April, 5 weeks; and in-season, May to August, 16 weeks) and analyzed the transition of 2000-m rowing ergometer time, training intensity/volume, body composition (body weight and body fat) and energy intake/expenditure in each phase...
March 6, 2018: Journal of Strength and Conditioning Research
Bahar Gürlek Demirci, Siren Sezer, Emre Tutal, Turan Çolak, Saliha Uyanık, Mehmet Haberal
OBJECTIVES: In kidney transplant recipients, reduced muscle mass and hand-grip strength are associated with impaired nutritional status. Serum testosterone is highly associated with muscle strength in the general population. Here, we aimed to determine the associations among serum testosterone, hand-grip strength, and nutritional and inflammatory parameters, as well as graft function. MATERIALS AND METHODS: Our study included 144 stable male kidney transplant recipients from our renal transplant outpatient clinic...
March 2018: Experimental and Clinical Transplantation
Kazunori Yoh, Hiroki Nishikawa, Hirayuki Enomoto, Noriko Ishii, Yoshinori Iwata, Akio Ishii, Yukihisa Yuri, Yuho Miyamoto, Kunihiro Hasegawa, Chikage Nakano, Ryo Takata, Takashi Nishimura, Nobuhiro Aizawa, Yoshiyuki Sakai, Naoto Ikeda, Tomoyuki Takashima, Hiroko Iijima, Shuhei Nishiguchi
Introduction and purpose: Sarcopenia is defined as a decrease in muscle mass and muscle strength, and it has been demonstrated to be an adverse predictor in numerous types of cancers. Exercise therapy (ET) carries multiple health benefits in several diseases. Despite these clinical benefits, there are limited data available regarding patients with pancreatic cancer (PC) undergoing ET. We aim to prospectively examine the effect of ET on sarcopenia in patients with PC. Methods and analysis: All clinical stages of PC can be included...
2018: BMJ Open Gastroenterology
Jing Gao, Wei Nie, Fenglai Wang, Yuming Guo
The present study aimed to investigate the influence of maternal selenium supplementation on the skeletal muscle development of the offspring. A total of 720 Ross 308 broiler breeders at 24-week-old were allocated into 3 treatments with 6 replicates of 40 hens each and fed with 0 mg/kg-(group Se/C), 0.5 mg/kg organic-(group Se/O), and 0.5 mg/kg inorganic-(group Se/I) selenium, respectively for 8 weeks. The male offspring from each nutritional treatment were divided and housed into 8 cages of 12 birds each and fed with a commercial diet supplemented with selenium from Na2 SeO3 at 0...
March 9, 2018: Biological Trace Element Research
Agathe D Jadczak, Naresh Makwana, Natalie Luscombe-Marsh, Renuka Visvanathan, Timothy J Schultz
OBJECTIVES: This umbrella review aimed to determine the effectiveness of exercise interventions, alone or in combination with other interventions, in improving physical function in community-dwelling older people identified as pre-frail or frail. INTRODUCTION: Exercise is said to have a positive impact on muscle mass and strength which improves physical function and hence is beneficial for the treatment of frailty. Several systematic reviews discuss the effects of exercise interventions on physical function parameters, such as strength, mobility, gait, balance and physical performance, and indicate that multi-component exercise, including resistance, aerobic, balance and flexibility training, appears to be the best way in which to improve physical function parameters in frail older people...
March 2018: JBI Database of Systematic Reviews and Implementation Reports
Nobuhiro Tsuchiya, Chikara Kunisaki, Hirochika Makino, Jun Kimura, Ryo Takagawa, Sho Sato, Yusaku Tanaka, Kei Sato, Hiroshi Miyamoto, Takashi Kosaka, Hirotoshi Akiyama, Itaru Endo, Kentaro Sakamaki, Takeharu Yamanaka
PURPOSE: The present study evaluated the safety and effectiveness of laparoscopic gastrectomy (LG) in elderly gastric cancer patients. PATIENTS AND METHODS: This study included 78 gastric cancer patients aged 80 years or above [39 in the LG group and 39 in the open gastrectomy group (matched)]. Patient characteristics, surgical outcomes, survival time, and immunonutritional status were compared. RESULTS: Mean blood loss was significantly lower in the LG group, although the operation time did not differ...
March 7, 2018: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
Linxi Yuan, Ru Zhang, Xuzhou Ma, Ling Yang, Qing Zheng, Dong Chen, Miao Li, Ting Fan, Yongxian Liu, Liping Pan, Xuebin Yin
The effects of selenium (Se)-biofortified corn on the total Se contents, the antioxidant enzyme levels, and the amino acids composition in Chinese mitten crab ( Eriocheir sinensis ) during the stage of the fifth shelling to maturity were investigated in the present study. The culture density of crabs was 600 per 667 m², and they were continuously fed 120.4 mg Se from Se-biofortified corn per 667 m² every two days for 90 days. The results showed that the total muscle Se levels in the crabs were significantly increased ( p < 0...
March 7, 2018: Nutrients
Jill M Hamilton-Reeves, Abigail Stanley, Misty D Bechtel, Thomas M Yankee, Prabhakar Chalise, Lauren K Hand, Eugene K Lee, Woodson Smelser, Moben Mirza, Hadley Wyre, Holly Hull, Susan E Carlson, Jeffrey M Holzbeierlein
PURPOSE: Poor preoperative nutritional status is associated with higher complication rates in bladder cancer patients after radical cystectomy (RC). Given the short lag time between diagnosis and RC, we compared a short-term Specialized IMmunonutrition (SIM) to a standard oral nutrition supplement (ONS) on the acute inflammatory response and arginine status in RC patients. MATERIALS AND METHODS: Twenty-nine men received SIM (n = 14) or ONS (n = 15) to drink three cartons/day for five days before and five days after RC in a prospective, randomized study...
March 5, 2018: Journal of Urology
Eva-Maria Strasser, Marlene Hofmann, Bernhard Franzke, Barbara Schober-Halper, Stefan Oesen, Waltraud Jandrasits, Alexandra Graf, Markus Praschak, Barbara Horvath-Mechtler, Christine Krammer, Martin Ploder, Norbert Bachl, Michael Quittan, Karl-Heinz Wagner, Barbara Wessner
BACKGROUND: Age related loss of skeletal muscle mass is accompanied by changes in muscle quality leading to impairment of functional status. AIM: This study investigated the effect of resistance training and nutritional supply on muscle mass and muscle quality in very old institutionalized adults. DESIGN: Prospective, randomized, multi-arm parallel and controlled intervention study. SETTING: This study was conducted in five retirement care facilities...
March 7, 2018: European Journal of Physical and Rehabilitation Medicine
R Jhorawat, N Bansal, P Beniwal, D Agarwal, V Malhotra
The aim of this study was to measure insulin resistance (IR) in dialysis patients and its relation to Vitamin D status and nutritional parameters. We included patients on maintenance dialysis, both hemodialysis and peritoneal dialysis (HD and PD). IR was measured by homeostatic model assessment (HOMA)-IR index defined as fasting serum insulin (μU/L) × fasting blood sugar (mmol/L)/22.5. Baseline Vitamin D levels were measured by chemiluminescence immunoassay (CLIA) method. HOMA-IR index correlated with nutritional parameters such as 7-point subjective global assessment (SGA) and anthropometric measures, for example, body fat percentage, lean body weight (LBW), mid-arm circumference (MAC), and mid-arm muscle circumference (MAMC)...
January 2018: Indian Journal of Nephrology
Aline Kirjner Poziomyck, Oly Campos Corleta, Leandro Totti Cavazzola, Antonio Carlos Weston, Edson Braga Lameu, Luisa Jussara Coelho, Luis Fernando Moreira
BACKGROUND: Malnutrition is very prevalent in patients with gastric cancer and increases the risk of morbidity and mortality. Adductor pollicis muscle thickness (APMT) appears as an important objective, quick, inexpensive and noninvasive measure to assess the muscle compartment. AIM: To compare APMT and other nutritional assessment methods and to correlate these methods with postoperative mortality. METHODS: Forty-four patients, 29 men and 15 women, mean age of 63±10...
March 1, 2018: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Kyle Edmunds, Magnús Gíslason, Sigurður Sigurðsson, Vilmundur Guðnason, Tamara Harris, Ugo Carraro, Paolo Gargiulo
Sarcopenic muscular degeneration has been consistently identified as an independent risk factor for mortality in aging populations. Recent investigations have realized the quantitative potential of computed tomography (CT) image analysis to describe skeletal muscle volume and composition; however, the optimum approach to assessing these data remains debated. Current literature reports average Hounsfield unit (HU) values and/or segmented soft tissue cross-sectional areas to investigate muscle quality. However, standardized methods for CT analyses and their utility as a comorbidity index remain undefined, and no existing studies compare these methods to the assessment of entire radiodensitometric distributions...
2018: PloS One
Edyta Wernio, Dariusz Jagielak, Jolanta Anna Dardzińska, Ewa Aleksandrowicz-Wrona, Jan Rogowski, Agnieszka Gruszecka, Sylwia Małgorzewicz
Severe aortic stenosis (AS) is associated with the reduction of muscle mass and may be associated with deterioration of nutritional status. Furthermore, malnourished cardiac patients are characterized by a higher risk of postoperative complications and mortality. The aim of this study was the evaluation and comparison of nutritional status, appetite and body composition in older people with severe aortic stenosis before aortic valve replacement and healthy elderly volunteers. One hundred and one patients, aged >65 years old with severe AS were included in the study...
March 5, 2018: Nutrients
Heilok Cheng, Jielan Kong, Catherine Underwood, Peter Petocz, Vasant Hirani, Beryl Dawson, Fiona O'Leary
The loss of lean body mass, muscle strength and physical function causes significant problems in older adults. Protein and amino acid supplements can preserve muscle strength but the effect on function is variable. We conducted a systematic literature review and meta-analysis to investigate the effect of protein and amino acid supplementation on fat-free mass, muscle strength and physical function in malnourished, frail, sarcopenic, dependent or elderly with acute or chronic conditions, with or without rehabilitation exercise...
March 2018: British Journal of Nutrition
Koji Amano, Tatsuya Morita, Jiro Miyamoto, Teruaki Uno, Hirofumi Katayama, Ryohei Tatara
PURPOSE: Few studies have investigated the need for nutritional support in advanced cancer patients in palliative care settings. Therefore, we conducted a questionnaire to examine the relationship between the perception of need for nutritional support and cancer cachexia and the prevalence of specific needs, perceptions, and beliefs in nutritional support. METHODS: We conducted a questionnaire in palliative care settings. Patients were classified into two groups: (1) non-cachexia/pre-cachexia and (2) cachexia/refractory cachexia...
March 5, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Munehiro Kitada, Yoshio Ogura, Taeko Suzuki, Itaru Monno, Keizo Kanasaki, Ai Watanabe, Daisuke Koya
Background: The objective of this study is to investigate the effects of a low-protein diet (LPD) starting from a young age on diabetic status and renal injury in a rat model of type 2 diabetes and obesity. Methods: Diabetic male Wistar fatty ( fa/fa ) rats (WFRs) were fed a standard diet (23.84% protein) or an LPD (5.77% protein) for 24 weeks beginning at 6 weeks of age. We investigated the effects of the LPD on total body weight (BW); fat weight (FW); lower-limb muscle weight (MW); several measures of diabetic status, including fasting/random glucose levels, HOMA-IR and the IPITT; and renal injuries, including renal hypertrophy, albuminuria and histological changes...
2018: Nutrition & Metabolism
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