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한국운동영양학회> PAN (Physical activity and nutrition)

PAN (Physical activity and nutrition) update

  • : 한국운동영양학회
  • : 자연과학분야  >  가정
  • : KCI등재
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  • : 연속간행물
  • : 계간
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  • : 2733-7545
  • : 운동영양학회지(~2011) → jenb (journal of exercise nutrition & biochemistry)(2011~)->PAN (Physical activity and nutrition)(2021~)

수록정보
수록범위 : 1권1호(1997)~25권3호(2021) |수록논문 수 : 733
PAN (Physical activity and nutrition)
25권3호(2021년 09월) 수록논문
최근 권호 논문
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1Effects of marine oligomeric polyphenols on body composition and physical ability of elderly individuals with sarcopenia: a pilot study

저자 : Il-Su Kwon , Deuk-Su Park , Hyeon-Cheol Shin , Myung-Gyu Seok , Jae-Keun Oh

발행기관 : 한국운동영양학회 간행물 : PAN (Physical activity and nutrition) 25권 3호 발행 연도 : 2021 페이지 : pp. 1-7 (7 pages)

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[Purpose] We aimed to identify the effects of marine oligomeric polyphenol (MOP) intake in elderly individuals with sarcopenia.
[Methods] Older adults (aged 65 years or older) were recruited based on the diagnostic criterion for sarcopenia and were randomly assigned to the MOP intake group (n=10) or the placebo (PBO) intake group (n=10). To determine the effect of MOP intake received for four weeks, the pre- and post-intake body composition (weight, skeletal muscle mass, and bone density) and senior fitness tests were assessed.
[Results] Our results showed there were significant differences in the skeletal muscle mass (p =0.039), bone density (p =0.020), fat-free mass index (p =0.026), and 2.4 m up and go test (p =0.001) between pretest and post-test. There was a significant difference between the pre-test and post-test and an interaction effect for the one-leg stand test (p =0.010 and p =0.049, respectively). However, there were no significant differences in body fat percentage, calf circumference, grip strength, or the chair rise test.
[Conclusion] Some variables exhibited significant differences in the pre- and post-assessments, and there was an interaction effect for the one-leg stand. However, this was insufficient to prove the effectiveness of MOP intake in improving sarcopenia. Therefore, additional studies are essential to examine the effects of MOP intake and exercise intervention on the body composition and fitness of patients over a longer period.

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2Oligomerized polyphenols in lychee fruit extract supplements may improve high-intensity exercise performance in male athletes: a pilot study

저자 : Aki Kawamura , Shun Hashimoto , Miho Suzuki , Hiromasa Ueno , Masaaki Sugita

발행기관 : 한국운동영양학회 간행물 : PAN (Physical activity and nutrition) 25권 3호 발행 연도 : 2021 페이지 : pp. 8-15 (8 pages)

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[Purpose] Excessive reactive oxygen species (ROS) induced by prolonged high-intensity exercise can cause structural and functional damage. Antioxidant polyphenol supplementation, which reduces ROS levels, may improve high-intensity exercise performance. We evaluated the effect of lychee fruit extract, which contains high levels of low-molecular-weight oligomerized polyphenols, on high-intensity exercise performance.
[Methods] Ten male athletes were included in an open-label trial that consisted of control and intervention phases, with a 7-day washout period between phases. The participants were administered oligomerized lychee fruit extract for seven days, whereas no intervention was given in the control phase. High-intensity intermittent exercise and the Wingate test were performed. The power output, blood lactate levels, reactive oxygen metabolite levels, biological antioxidant potential, heart rate, and rate of perceived exertion were measured.
[Results] The average power output was significantly higher in the intervention phase than in the control phase (P < 0.01), while the change in blood lactate levels was significantly lower in the intervention phase than in the control phase (P < 0.05). The average heart rate was significantly higher in the intervention phase than in the control phase (P < 0.05), without changing the rate of perceived exertion. Although there was no difference in reactive oxygen metabolite levels between the phase, the change in biological antioxidant potential was larger in the intervention phase than in the control phase (P = 0.06). The Wingate test showed no significant differences between the phase.
[Conclusion] Short-term loading with oligomerized lychee fruit extract may increase performance during high-intensity intermittent exercise by improving metabolism.

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3Incidence of exercise-associated hyponatremia during a high-altitude 161-km ultramarathon

저자 : Morteza Khodaee , Anahita Saeedi , Christine Harris-Spinks , Tamara Hew-Butler

발행기관 : 한국운동영양학회 간행물 : PAN (Physical activity and nutrition) 25권 3호 발행 연도 : 2021 페이지 : pp. 16-22 (7 pages)

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[Purpose] Exercise-associated hyponatremia (EAH) is a well-known condition among endurance athletes at low altitudes. The incidence of EAH during ultramarathons at high altitudes warrants further investigation. This prospective observational study was conducted on the participants of the Leadville Trail 100 run, a 161- km race held at a high altitude (2,800 m-3,840 m).
[Methods] Venous blood samples were collected before and immediately after the race. The participants completed an electronic survey after the race. Our main outcome measure was the post-race serum sodium ([Na+]) level.
[Results] Of the 672 athletes who started the race, 351 (52%) successfully completed the event within the 30- hour cut-off. Post-race blood samples were collected from 84 runners (66 finishers). Both pre- and post-race blood samples were collected from 37 participants. Twenty percent of the post-race participants had EAH. Only one post-race participant had a [Na+] level of <130 mmol/L. All participants with EAH were asymptomatic. One participant had an abnormal pre-race [Na+] level (134 mmol/L). Female participants had a significantly higher rate of EAH than male participants (40% vs. 16%; p=0.039). Age, body mass index, weight changes, race completion status, nonsteroidal anti-inflammatory drug use, and urine specific gravity were not associated with the development of EAH. Lower postrace [Na+] levels were associated with higher serum creatine kinase values (R2=0.1, p<0.005).
[Conclusion] High altitude (3,840 m peak) does not appear to enhance the incidence of EAH after an ultramarathon footrace. This suggests that ambient temperature (low temperatures reduce risk), sex (female predilection), endurance running, and overhydration are more prominent risk factors for EAH than high altitude.

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4Efficacy of immune-strengthening functional drinks in top-level athletes: a questionnaire survey-based research

저자 : Minchul Lee , Jin-Sook Lee , Kyunghee Kim , Chanju Kim

발행기관 : 한국운동영양학회 간행물 : PAN (Physical activity and nutrition) 25권 3호 발행 연도 : 2021 페이지 : pp. 23-27 (5 pages)

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[Purpose] Functional beverages are intended to support those who want to maintain optimal physical condition and improve their quality of life through the enhancement of heart health, immunity, and digestion. The purpose of this study was to investigate the performance of top-level athletes consuming immune- strengthening conditioning nutritional drinks.
[Methods] A total of 107 top-level athletes (baseball (56 players), pro volleyball (17), athletics (16), cycling (8), golf (6), and fencing (6)) participated in the experiment. They consumed an immune-enhancing functional beverage once a day for 8 weeks and responded to a survey before, during, and after drinking the beverage.
[Results] Three total aspect-based subfactors were drawn from 24 questions in the factor analysis: physical, satisfaction with mental stability, and activity in performance. The physical, mental stability and performance changes of athletes significantly increased in period 2 (4 weeks after intake) and period 3 (after 8 weeks of intake).
[Conclusion] We evaluated the efficacy of a new conditioned beverage containing Lactobacillus B240 and protein in improving the performance and physiological utility of top athletes. This functional drink may gain popularity among those seeking health benefits and improved exercise performance.

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5A network pharmacology approach to explore the potential role of Panax ginseng on exercise performance

저자 : Jisu Kim , Kang Pa Lee , Myoung-ryu Kim , Bom Sahn Kim , Byung Seok Moon , Chul Ho Shin , Suji Baek , Bok Sil Hong

발행기관 : 한국운동영양학회 간행물 : PAN (Physical activity and nutrition) 25권 3호 발행 연도 : 2021 페이지 : pp. 28-35 (8 pages)

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[Purpose] As Panax ginseng C. A. Meyer (ginseng) exhibits various physiological activities and is associated with exercise, we investigated the potential active components of ginseng and related target genes through network pharmacological analysis. Additionally, we analyzed the association between ginseng-related genes, such as the G-protein-coupled receptors (GPCRs), and improved exercise capacity.
[Methods] Active compounds in ginseng and the related target genes were searched in the Traditional Chinese Medicine Database and Analysis Platform (TCMSP). Gene ontology functional analysis was performed to identify biological processes related to the collected genes, and a compound-target network was visualized using Cytoscape 3.7.2.
[Results] A total of 21 ginseng active compounds were detected, and 110 targets regulated by 17 active substances were identified. We found that the active compound protein was involved in the biological process of adrenergic receptor activity in 80%, G-protein-coupled neurotransmitter in 10%, and leucocyte adhesion to arteries in 10%. Additionally, the biological response centered on adrenergic receptor activity showed a close relationship with G protein through the beta-1 adrenergic receptor gene reactivity.
[Conclusion] According to bioavailability analysis, ginseng comprises 21 active compounds. Furthermore, we investigated the ginseng-stimulated gene activation using ontology analysis. GPCR, a gene upregulated by ginseng, is positively correlated to exercise. Therefore, if a study on this factor is conducted, it will provide useful basic data for improving exercise performance and health.

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6Comparative evaluation of obesity-related parameters in junior sumo wrestlers and children with obesity

저자 : Miori Ogawa , Hiroyuki Sagayama , Shinsuke Tamai , Reiko Momma , Daisuke Hoshi , Akiko Uchizawa , Go Ichikawa , Osamu Arisaka , Koichi Watanabe

발행기관 : 한국운동영양학회 간행물 : PAN (Physical activity and nutrition) 25권 3호 발행 연도 : 2021 페이지 : pp. 36-43 (8 pages)

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[Purpose] Exercise is a key factor in preventing obesity and metabolic syndrome. Sumo wrestlers increase their body size from childhood for athletic advantage; however, the risk of metabolic syndrome in junior sumo wrestlers is undetermined. Preventive measures against pediatric obesity should be initiated during childhood to prevent obesity in adulthood, considering its high global incidence. We comparatively evaluated the risk factors for metabolic syndrome in junior sumo wrestlers and children with obesity.
[Methods] We enrolled 70 male children (age 9-17 years [sumo group, n = 14] and 9-14 years [other sports and non-exercise groups, n = 28 each]) and evaluated their anthropometric parameters (height, weight, body mass index z-score, obesity rate, waist circumference, waist to height ratio) and hematological parameters (total, low-density, high-density, and non-high-density lipoprotein-cholesterol; triglycerides; plasma glucose, and glycated hemoglobin levels).
[Results] The BMI z-score, obesity rate, waist circumference (p < 0.05, along with the non-exercise group), and systolic blood pressure were significantly higher and the high-density cholesterol level was lower in the sumo group than in the other sports group (p < 0.05). The waist to height ratio was significantly higher in the non-exercise group than in the other sports group (p < 0.05). No significant difference was found in other blood lipid, plasma glucose (significantly lower level than the reference range in the sumo group, p < 0.05), and glycated hemoglobin (within the reference range in all groups) levels among the three groups.
[Conclusion] Junior sumo wrestlers had a larger body size and higher blood pressure than children with obesity who exercised regularly. This provides direction for future research into targeted preventive interventions against metabolic syndrome for junior sumo wrestlers with large body size.

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