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Protein intake after exercise

Susanne Maurer
BACKGROUND: Obesity is one of the greatest public health challenges worldwide. It is not only a medical but also a philosophical, ecological, economic, sociocultural, and psychological problem as well as a severe consequence of our modern value definition to 'receive more and more'. Therefore, physicians are not able to treat obesity broadly and should not be used as tools to achieve certain weight goals. METHODS: This article presents an outline of conservative obesity therapy...
October 2016: Visceral Medicine
Laurie-Anne Marquet, Christophe Hausswirth, Odeline Molle, John A Hawley, Louise M Burke, Eve Tiollier, Jeanick Brisswalter
BACKGROUND: "Sleep-low" consists of a sequential periodization of carbohydrate (CHO) availability-low glycogen recovery after "train high" glycogen-depleting interval training, followed by an overnight-fast and light intensity training ("train low") the following day. This strategy leads to an upregulation of several exercise-responsive signaling proteins, but the chronic effect on performance has received less attention. We investigated the effects of short-term exposure to this strategy on endurance performance...
November 25, 2016: Nutrients
Nam Ju Lim, Jun Ho Shin, Hye Jin Kim, Yeni Lim, Ji Yeon Kim, Won Jun Lee, Soo Jeong Han, Oran Kwon
Given the increased concerns about the degenerative decline in the physical performance of the elderly, there is a need for developing effective strategies to suppress the age-related loss of skeletal muscle mass and functional capacity through a lifestyle intervention. This randomized controlled trial examined whether a combination of Korean mistletoe extract (KME) supplement and exercise affected muscle mass, muscle function, and targeted molecular expressions. Sixty-seven subjects aged 55-75years were assigned to placebo, low-dose (1g/d), or high-dose (2g/d) of KME for 12weeks...
November 11, 2016: Experimental Gerontology
Alistair Monteyne, Alex Martin, Liam Jackson, Nick Corrigan, Ellen Stringer, Jack Newey, Penny L S Rumbold, Emma J Stevenson, Lewis J James
PURPOSE: Protein consumption after resistance exercise potentiates muscle protein synthesis, but its effects on subsequent appetite in this context are unknown. This study examined appetite and energy intake following consumption of protein- and carbohydrate-containing drinks after resistance exercise. METHODS: After familiarisation, 15 resistance training males (age 21 ± 1 years, body mass 78.0 ± 11.9 kg, stature 1.78 ± 0.07 m) completed two randomised, double-blind trials, consisting of lower-body resistance exercise, followed by consumption of a whey protein (PRO 23...
November 10, 2016: European Journal of Nutrition
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
Jakob Agergaard, Jacob Bulow, Jacob K Jensen, Søren Reitelseder, Micah J Drummond, Peter Schjerling, Thomas Scheike, Anja Serena, Lars Holm
INTRODUCTION: The present study investigated whether well-tolerated light-load resistance exercise (LL-RE) affects skeletal muscle fractional synthetic rate (FSR) and anabolic intracellular signaling as a way to counteract age-related loss of muscle mass. METHODS: Untrained healthy men (age: +65 yrs) were subjected to 13 hours supine rest. After 21/2 hours of rest, unilateral LL-RE was conducted consisting of leg extensions (10 sets, 36 repetitions) at 16% 1RM. Subsequently, the subjects were randomized to oral intake of PULSE (4g whey protein/hour; N=10), BOLUS (28g whey protein at 0 hours and 12g whey protein at 7 hours post-exercise; N=10) or placebo (4g maltodextrin/hour; N=10)...
October 25, 2016: American Journal of Physiology. Endocrinology and Metabolism
Lars Holm, Stine Klejs Rahbek, Jean Farup, Mikkel Holm Vendelbo, Kristian Vissing
INTRODUCTION: In this study we investigated the impact of whey protein hydrolysate and maltodextrin (WPH) intake on intramuscular connective tissue (IMCT) protein fractional synthesis rate (FSR) after maximal shortening and lengthening contractions. METHODS: Twenty young men were randomized to receive either WPH or maltodextrin [carbohydrate (CHO)] immediately after completion of unilateral shortening and lengthening knee extensions. Ring-(13) C6 -phenylalanine was infused, and muscle biopsies were obtained...
September 7, 2016: Muscle & Nerve
Mi-Kyeong Choi, Mi-Hyun Kim
Accumulated data suggests a positive effect of silicon on bone health; however, limited research exists on the silicon content of foods. To further the understanding of the relationship between dietary silicon intake and bone health, a food composition database of commonly consumed foods in Korea is required. For quantitative data on the intake levels of silicon, we analyzed the silicon content of 365 food items commonly consumed in Korea using inductively coupled plasma-atomic emission spectrometry following microwave-assisted digestion...
August 15, 2016: Biological Trace Element Research
Ju Yong Bae, Ki Ok Shin, Jinhee Woo, Sang Heon Woo, Ki Soeng Jang, Yul Hyo Lee, Sunghwun Kang
PURPOSE: The purpose of this study was to investigate the effect of exercise and dietary change on obesity and insulin resistance and mTOR signaling protein levels in skeletal muscles of obese rats. METHODS: Sixty male Sprague-Dawley rats were divided into CO (Normal diet) and HF (High Fat diet) groups in order to induce obesity for 15 weeks. The rats were then subdivided into CO, COT (CO + Training), HF, HFT (HF + Training), HFND (Dietary change), and HFNDT (HFND + Training) groups (10 rats / group)...
June 2016: Journal of Exercise Nutrition & Biochemistry
Zhiwei Xia, Liping Meng, Qingqing Man, Lixiang Li, Pengkun Song, Yuqian Li, Yixiong Gao, Shanshan Ja, Jian Zhang
OBJECTIVE: To analyze the dietary factors on sarcopenia in elderly in Beijing and provide nutritional recommendations for the sarcopenia. METHOD: A total of 830 participants aged 60 and above and without serious diseases were selected from two representative communities in Beijing. A cross-sectional research design was used, including inquiry investigation, dietary surveys (food frequency questionnaire) anthropometry, muscle mass and functional assessment. RESULTS: The prevalence of sarcopenia was 20...
May 2016: Wei Sheng Yan Jiu, Journal of Hygiene Research
D Thivel, P L Rumbold, N A King, B Pereira, J E Blundell, M-E Mathieu
AIM: This review aims to determine if acute exercise affects subsequent energy and macronutrients intake in obese and non-obese children and adolescents. METHODS: Databases were searched between January 2015 and December 2015 for studies reporting energy and/or macronutrients intake immediately after an acute exercise and control condition, in children and adolescents. From the initial 118 references found, 14 were included for subsequent analysis after screening representing 31 acute exercise conditions that varied in intensity, duration and modality...
July 19, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Jun Hata, Naoko Mukai, Masaharu Nagata, Tomoyuki Ohara, Daigo Yoshida, Hiro Kishimoto, Mao Shibata, Yoichiro Hirakawa, Motoyoshi Endo, Tetsuro Ago, Takanari Kitazono, Yuichi Oike, Yutaka Kiyohara, Toshiharu Ninomiya
OBJECTIVE: Angiopoietin-like protein 2 (ANGPTL2), a proinflammatory mediator, has been reported to accelerate the development of insulin resistance, endothelial dysfunction, and atherosclerosis in mice. However, no cohort studies have examined the relationship between serum ANGPTL2 levels and the development of cardiovascular disease (CVD) in a general population. APPROACH AND RESULTS: A total of 3005 community-dwelling Japanese aged ≥40 years without a history of CVD were divided into 4 groups according to the quartiles of serum ANGPTL2 concentrations (Q1, lowest and Q4, highest) and followed up for 10 years...
August 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
Hiroyuki Kato, Sayako Nakano, Yoshiko Inoue, Tomoko Takeda, Kyoko Miura, Taro Nakamura, Katsuya Suzuki, Makoto Bannai
BACKGROUND: The indicator amino acid oxidation (IAAO) method has contributed to establishing protein and amino acid (AA) requirements by determining the optimal protein and AA intake that maximizes whole-body protein synthesis. However, it has not been used with endurance-trained subjects. OBJECTIVE: This study aimed to determine the optimal AA intake immediately after endurance exercise and at rest in endurance-trained rats by using the IAAO method. METHODS: Four-week-old male Fischer rats were divided into a sedentary (SED) group and a trained (TR) group, which underwent treadmill training 5 d/wk for 6 wk at 26 m/min for 60 min/d...
August 2016: Journal of Nutrition
Hiroyuki Kato, Katsuya Suzuki, Makoto Bannai, Daniel R Moore
UNLABELLED: A higher protein intake has been recommended for endurance athletes compared with healthy non-exercising individuals based primarily on nitrogen balance methodology. The aim of this study was to determine the estimated average protein requirement and recommended protein intake in endurance athletes during an acute 3-d controlled training period using the indicator amino acid oxidation method. After 2-d of controlled diet (1.4 g protein/kg/d) and training (10 and 5km/d, respectively), six male endurance-trained adults (28±4 y of age; Body weight, 64...
2016: PloS One
Saebom Haam, Hyon Park
PURPOSE: The purpose of this study is to examine the effects of six-weeks of endurance swim training and short-term intake of Rg1 on the expression of related proteins as well as improvement of aerobic exercise capacity in 8-week-old male SD rats. METHODS: The groups were divided into placebo (NP, n=6), Rg1 (NRG, n=6), exercise+placebo (EP, n=7), and exercise+Rg1 (ERG, n=7). On completion of the 6-week swimming exercise, Rg1-intake groups were treated with acute uptakes (3 times within 24hrs) of Rg1...
December 31, 2015: Journal of Exercise Nutrition & Biochemistry
Stefan M Pasiakos, Lee M Margolis, Nancy E Murphy, Holy L McClung, Svein Martini, Yngvar Gundersen, John W Castellani, James P Karl, Hilde K Teien, Elisabeth H Madslien, Pal H Stenberg, Andrew J Young, Scott J Montain, James P McClung
Load carriage (LC) exercise may exacerbate inflammation during training. Nutritional supplementation may mitigate this response by sparing endogenous carbohydrate stores, enhancing glycogen repletion, and attenuating negative energy balance. Two studies were conducted to assess inflammatory responses to acute LC and training, with or without nutritional supplementation. Study 1: 40 adults fed eucaloric diets performed 90-min of either LC (treadmill, mean ± SD 24 ± 3 kg LC) or cycle ergometry (CE) matched for intensity (2...
June 2016: Physiological Reports
J Collins, G Longhurst, H Roschel, B Gualano
BACKGROUND: Studies assessing the effects co-supplementation with creatine and protein, along with resistance training, in older individuals with frailty are lacking. OBJECTIVES: This is an exploratory trial from the Pro-Elderly study ("Protein Intake and Resistance Training in Aging") aimed at gathering knowledge on the feasibility, safety, and efficacy of co-supplementation with creatine and protein supplementation, combined with resistance training, in older individuals with frailty...
2016: Journal of Frailty & Aging
Milena Morano, Irene Rutigliano, Alfonso Rago, Massimo Pettoello-Mantovani, Angelo Campanozzi
OBJECTIVES: In the context of a 6-mo obesity program, incorporating school- and family-based components, nutritional education, fun-type skill-learning physical activities, and exercise training, this study examined relationships among changes in nutritional status, physical fitness, and some psychosocial and behavioral treatment-related outcomes, using a before and after comparison. METHODS: Eighteen obese and overweight children ages 10 to 12 y were assessed with respect to body weight, height, circumferences, skinfold thickness, and fat mass...
October 2016: Nutrition
Per I Rustad, Manuela Sailer, Kristoffer T Cumming, Per B Jeppesen, Kristoffer J Kolnes, Ove Sollie, Jesper Franch, John L Ivy, Hannelore Daniel, Jørgen Jensen
Intake of protein immediately after exercise stimulates protein synthesis but improved recovery of performance is not consistently observed. The primary aim of the present study was to compare performance 18 h after exhaustive cycling in a randomized diet-controlled study (175 kJ·kg(-1) during 18 h) when subjects were supplemented with protein plus carbohydrate or carbohydrate only in a 2-h window starting immediately after exhaustive cycling. The second aim was to investigate the effect of no nutrition during the first 2 h and low total energy intake (113 kJ·kg(-1) during 18 h) on performance when protein intake was similar...
2016: PloS One
Marcus Moberg, William Apró, Björn Ekblom, Gerrit van Hall, Hans-Christer Holmberg, Eva Blomstrand
Protein synthesis is stimulated by resistance exercise and intake of amino acids, in particular leucine. Moreover, activation of mammalian target of rapamycin complex 1 (mTORC1) signaling by leucine is potentiated by the presence of other essential amino acids (EAA). However, the contribution of the branched-chain amino acids (BCAA) to this effect is yet unknown. Here we compare the stimulatory role of leucine, BCAA, and EAA ingestion on anabolic signaling following exercise. Accordingly, eight trained volunteers completed four sessions of resistance exercise during which they ingested either placebo, leucine, BCAA, or EAA (including the BCAA) in random order...
June 1, 2016: American Journal of Physiology. Cell Physiology
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