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Journal of Exercise Nutrition & Biochemistry

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https://www.readbyqxmd.com/read/29673246/validity-of-the-6-minute-walk-test-and-step-test-for-evaluation-of-cardio-respiratory-fitness-in-patients-with-type-2-diabetes-mellitus
#1
Min Chul Lee
PURPOSE: The purpose of this study was to evaluate the reliability, reproducibility, and validity of the 6-minute walk test and step test as substitutes for ergometer exercise in patients with type 2 diabetes mellitus. METHODS: The study included 54 women aged 50-70 years who had type 2 diabetes mellitus. All the patients performed a cycle ergometer-graded exercise test for cardiorespiratory fitness (V̇O2max), followed by 6-minute walk and step tests. RESULTS: The mean distance covered during the 6-minute walk test was 538 ± 54 m, and the mean recovery heart rate after the step test was 93 ± 11 beats/min...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29673245/the-association-of-locomotive-and-non-locomotive-physical-activity-measured-by-an-accelerometer-with-functional-fitness-in-healthy-elderly-men-a-pilot-study
#2
Hyejoon Park, Wonil Park, Moran Lee, Nayoung Ko, Eunkyung Kim, Kazuko Ishikawa-Takata, Jonghoon Park
PURPOSE: The purpose of this study was to investigate the relationship of various aspects of daily physical activity, such as the number of steps, time spent in moderate to vigorous intensity physical activity (MVPA), and locomotive and non-locomotive MVPA measured by a triaxial accelerometer, with the functional fitness in healthy elderly men. METHODS: The subjects of this study were 22 healthy elderly men aged over 65 years. The participants wore a triaxial accelerometer for two weeks to estimate their daily physical activities...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29673244/changes-in-body-composition-blood-lipid-profile-and-growth-factor-hormone-in-a-patient-with-prader-willi-syndrome-during-24-weeks-of-complex-exercise-a-single-case-study
#3
Hee Joung Joung, In Soo Lim
PURPOSE: Prader-Willi syndrome (PWS) is a genetic disorder characterized by excessive appetite with progressive obesity and growth hormone (GH) deficiency. Excessive eating causes progressive obesity with increased risk of morbidities and mortality. Although GH treatment has beneficial effects on patients with PWS, adverse events have occurred during GH treatment. Exercise potentially has a positive effect on obesity management. The purpose of this research was to examine the effects of 24-week complex exercise program on changes in body composition, blood lipid profiles, and growth factor hormone levels in a patient with PWS...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29673243/the-effect-of-additional-carbohydrate-supplements-for-7-days-after-prolonged-interval-exercise-on-exercise-performance-and-energy-metabolism-during-submaximal-exercise-in-team-sports-athletes
#4
Hun-Young Park, Jisu Kim, Miyoung Park, Nana Chung, Kiwon Lim
PURPOSE: The purpose of our study was to determine the effectiveness of carbohydrate loading by additional carbohydrate supplements for 7 days after prolonged interval exercise on exercise performance and energy metabolism during submaximal exercise in team-sports athletes. METHODS: Twenty male team-sports athletes (14 soccer and 6 rugby players) volunteered to participate in the study and were equally divided into the experimental group (EXP, n=10) performing additional carbohydrate supplementation for 7 days after prolonged interval exercise until blood glucose level reaches 50 mg/dL or less and the control group (CON, n=10)...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29673242/study-of-muscle-contraction-induced-by-electrical-pulse-stimulation-and-nitric-oxide-in-c2c12-myotube-cells
#5
In Ho Lee, Yoon Jeong Lee, Hyobin Seo, Yi Seul Kim, Ju-Ock Nam, Byung-Duk Jeon, Tae-Dong Kwon
PURPOSE: This study aimed to examine the independent effect of electrical pulse stimulation(EPS) and nitric oxide(NO) on muscle contraction and their synergistic or combined effect on contraction phenomenon using C2C12 mouse skeletal muscle cells. METHODS: Some differentiated C2C12 myotube cells were untreated (control). Other cells did not receive EPS and did receive 0.5, 1.0, or 2.0 mM of the NO donor, S-nitroso-N-acetyl-penicillamine (SNAP; -E/S0.5, -E/S1.0, and -E/S2...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29673241/effect-of-acute-mid-intensity-treadmill-exercise-on-the-androgen-hormone-level-and-uncoupling-protein-1-expression-in-brown-fat-tissue-of-mouse
#6
Nahyun Kim, Jisu Kim, Choongsung Yoo, Kiwon Lim, Takayuki Akimoto, Jonghoon Park
PURPOSE: Brown adipose tissue (BAT) plays an important role in metabolizing different substances, including androgens. The aim of this study was to determine whether a single bout of aerobic exercise would increase the androgen hormone concentration in mouse BAT and whether its increase was associated with uncoupling protein-1 (UCP-1), protein kinase A (PKA)-related mechanism in BAT. METHODS: Twenty, 9-week-old ICR adult male micewere randomly divided into three groups: Control (n=6, CON), Exercise (n=7, EX), and Exercise + SRD5A1A2 inhibitor (n=7, EXIN)...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29673239/effects-of-treadmill-exercise-on-pi3k-akt-gsk-3%C3%AE-pathway-and-tau-protein-in-high-fat-diet-fed-rats
#7
Jae-Hoon Jeong, Eun-Bum Kang
PURPOSE: This study aimed to clearly evaluate the effects of obesity on cerebral health. Thus, we induced obesity in rats using a long-term high-fat diet (HFD), then investigated its effects on insulin signaling and tau hyperphosphorylation. Additionally, we examined the effects of 8 weeks of treadmill exercise (TE) on insulin signaling and tau hyperphosphorylation. METHODS: Rats were separated into Normal Diet-Control, HFD-Control, and HFD-TE groups. TE loads were gradually increased...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29673238/association-of-exercise-induced-autophagy-upregulation-and-apoptosis-suppression-with-neuroprotection-against-pharmacologically-induced-parkinson-s-disease
#8
Yong Chul Jang, Dong Joo Hwang, Jung Hoon Koo, Hyun Seob Um, Nam Hee Lee, Dong Cheol Yeom, Youngil Lee, Joon Yong Cho
PURPOSE: We investigated whether treadmill exercise (TE)-induced neuroprotection was associated with enhanced autophagy and reduced apoptosis in a mouse model of pharmacologically induced Parkinson's disease (PD). METHODS: PD was induced via the administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). C57BL/6 male mice were randomly assigned to the following three groups: control (C57BL, n=10), MPTP with probenecid (MPTP/C, n=10), and MPTP/ C plus exercise (MPTP-TE, n=10)...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370674/effects-of-acute-voluntary-loaded-wheel-running-on-bdnf-expression-in-the-rat-hippocampus
#9
Minchul Lee, Hideaki Soya
PURPOSE: Voluntary loaded wheel running involves the use of a load during a voluntary running activity. A muscle-strength or power-type activity performed at a relatively high intensity and a short duration may cause fewer apparent metabolic adaptations but may still elicit muscle fiber hypertrophy. This study aimed to determine the effects of acute voluntary wheel running with an additional load on brain-derived neurotrophic factor (BDNF) expression in the rat hippocampus. METHODS: Ten-week old male Wistar rats were assigned randomly to a (1) sedentary (Control) group; (2) voluntary exercise with no load (No-load) group; or (3) voluntary exercise with an additional load (Load) group for 1-week (acute period)...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370673/arc-arg3-1-protein-expression-in-dorsal-hippocampal-ca1-a-candidate-event-as-a-biomarker-for-the-effects-of-exercise-on-chronic-stress-evoked-behavioral-abnormalities
#10
Yea-Hyun Leem, Hyukki Chang
PURPOSE: Chronic stress is a risk factor for behavioral deficits, including impaired memory processing and depression. Exercise is well known to have beneficial impacts on brain health. METHODS: Mice were forced to treadmill running (4-week) during chronic restraint stress (6h/21d), and then behavioral tests were conducted by Novel object recognition, forced swimming test: FST, sociality test: SI. Dissected brain was stained with anti-calbindin-d28k and anti-Arc antibodies...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370672/weight-reduction-does-not-induce-an-undesirable-decrease-in-muscle-mass-muscle-strength-or-physical-performance-in-men-with-obesity-a-pilot-study
#11
Bokun Kim, Takehiko Tsujimoto, Rina So, Xiaoguang Zhao, Sechang Oh, Kiyoji Tanaka
PURPOSE: To date, there have been no reports on whether weight reduction causes decreases in muscle mass, muscle strength, or physical performance that could lead to health problems. Thus, in this pilot study, we investigated the appropriateness of the changes in muscle mass, muscle strength and physical performance after weight reduction. METHODS: Obese men who completed a weight reduction program to decrease and maintain a body mass index (BMI) of less than 25 kg/m2 for one year were recruited for the study...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370671/the-synergistic-effect-of-protein-complex-supplementation-combined-with-12-weeks-of-resistance-training-on-isokinetic-muscular-function-in-untrained-young-males
#12
Jiwoong Jang, Hun-Young Park, Choongsung Yoo, Yeram Park, Jisu Kim, Kiwon Lim
PURPOSE: Resistance exercise training (RET) and an additional intake of dietary protein supplements may improve muscle mass and muscular function, and reduce inflammatory markers. The types, amount, and timing of dietary protein supplements are important for the synergistic effects of resistance training and dietary protein supplements. We hypothesized that a 25.1 g protein complex supplement taken for 12 weeks, immediately before and after resistance exercise, would enhance fat free mass and isokinetic muscular function in young untrained males...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370670/comparison-of-body-composition-between-fashion-models-and-women-in-general
#13
Sunhee Park
PURPOSE: The present study compared the physical characteristics and body composition of professional fashion models and women in general, utilizing the skinfold test. METHODS: The research sample consisted of 90 professional fashion models presently active in Korea and 100 females in the general population, all selected through convenience sampling. Measurement was done following standardized methods and procedures set by the International Society for the Advancement of Kinanthropometry...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370669/the-role-of-habitual-physical-activity-on-arterial-stiffness-in-elderly-individuals-a-systematic-review-and-meta-analysis
#14
Wonil Park, Hun-Young Park, Kiwon Lim, Jonghoon Park
PURPOSE: Physical inactivity behavior at middle age or older is a major risk factor for cardiovascular disease. However, the effects of levels of habitual physical activity on arterial stiffness in elderly population remain unclear currently. Therefore, the purpose of this study was to demonstrate whether the effects of habitual physical activity could attenuate arterial stiffness in elderly individuals via a meta-analysis. METHODS: We searched the Medline and Embase databases from January 1997 through November 2017, using the medical subject headings "older population", "physical activity" (e...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370668/the-potential-role-of-exercise-in-chronic-stress-related-changes-in-ampa-receptor-phenotype-underlying-synaptic-plasticity
#15
Yea-Hyun Leem
PURPOSE: Chronic stress can cause disturbances in synaptic plasticity, such as longterm potentiation, along with behavioral defects including memory deficits. One major mechanism sustaining synaptic plasticity involves the dynamics and contents of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) in the central nervous system. In particular, chronic stress-induced disruption of AMPARs includes it abnormal expression, trafficking, and calcium conductance at glutamatergic synapses, which contributes to synaptic plasticity at excitatory synapses...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29370667/nutritional-needs-in-the-professional-practice-of-swimming-a-review
#16
Raúl Domínguez, Antonio Jesús-Sánchez-Oliver, Eduardo Cuenca, Pablo Jodra, Sandro Fernandes da Silva, Fernando Mata-Ordóñez
PURPOSE: Swimming requires developing a high aerobic and anaerobic capacity for strength and technical efficiency. The purpose of this study was to establish the nutritional requirements and dietary strategies that can optimize swimming performance. METHODS: Several related studies retrieved from the databases, Dialnet, Elsevier, Medline, Pubmed, and Web of Science, through keyword search strategies were reviewed. RESULTS: The recommended carbohydrate intake ranges between 6-10-12 g/kg/d, protein 2 g/kg/d, and fat should surpass 20-25% of the daily intake...
December 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29036767/the-role-of-glycation-in-the-pathogenesis-of-aging-and-its-prevention-through-herbal-products-and-physical-exercise
#17
Chan-Sik Kim, Sok Park, Junghyun Kim
PURPOSE: Advanced glycation end products (AGEs) are non-enzymatic modifications of proteins or lipids after exposure to sugars. In this review, the glycation process and AGEs are introduced, and the harmful effects of AGEs in the aging process are discussed. METHODS: Results from human and animal studies examining the mechanisms and effects of AGEs are considered. In addition, publications addressing means to attenuate glycation stress through AGE inhibitors or physical exercise are reviewed...
September 30, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29036766/resistance-training-increases-fibroblast-growth-factor-21-and-irisin-levels-in-the-skeletal-muscle-of-zucker-diabetic-fatty-rats
#18
Hee-Jae Kim, Wook Song
PURPOSE: Although the fibroblast growth factor-21 (FGF-21) and irisin roles are well demonstrated in metabolic disease, there have been no reports investigating the effect of resistance exercise on FGF-21 and irisin levels in diabetic skeletal muscles. Therefore, this study aimed to investigate the change of FGF-21 and irisin levels in various skeletal muscles, and their association with muscle strength, following 8 weeks of resistance training using Zucker diabetic fatty rats (type 2 diabetic animal models)...
September 30, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29036765/development-of-an-anaerobic-threshold-hrlt-hrvt-estimation-equation-using-the-heart-rate-threshold-hrt-during-the-treadmill-incremental-exercise-test
#19
Joo-Ho Ham, Hun-Young Park, Youn-Ho Kim, Sang-Kon Bae, Byung-Hoon Ko, Sang-Seok Nam
PURPOSE: The purpose of this study was to develop a regression model to estimate the heart rate at the lactate threshold (HRLT) and the heart rate at the ventilatory threshold (HRVT) using the heart rate threshold (HRT), and to test the validity of the regression model. METHODS: We performed a graded exercise test with a treadmill in 220 normal individuals (men: 112, women: 108) aged 20-59 years. HRT, HRLT, and HRVT were measured in all subjects. A regression model was developed to estimate HRLT and HRVT using HRT with 70% of the data (men: 79, women: 76) through randomization (7:3), with the Bernoulli trial...
September 30, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29036764/hippotherapy-and-neurofeedback-training-effect-on-the-brain-function-and-serum-brain-derived-neurotrophic-factor-level-changes-in-children-with-attention-deficit-or-and-hyperactivity-disorder
#20
Namju Lee, Sok Park, Jongkyu Kim
PURPOSE: The purpose of this study was to investigate the effect of hippotherapy and electroencephalography (EEG) neurofeedback on brain function and blood brain-derived neurotrophic factor (BDNF) level in children with attention-deficit or/and hyperactivity disorder (ADHD). METHODS: Sixteen children with ADHD participated in this study and were randomly divided into 2 groups, a 1-time hippotherapy group (W1G, n = 8) and a 2-time hippotherapy group (W2G, n = 8)...
September 30, 2017: Journal of Exercise Nutrition & Biochemistry
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