مرکز منطقه ای اطلاع رسانی علوم و فناوریJournal of Sports Physiology and Athletic Conditioning2783-30384142025316Aerobic exercise affects mitochondrial quality controlAerobic exercise affects mitochondrial quality control111enFaranakAminiDepartment of Physical Education and Sport Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran.Mohammad AliAzarbayjani Department of Sports Physiology, Central Tehran Branch, Islamic Azad University, Tehran, Iran0000-0002-3502-7487ShahinRiyahi MalayeriDepartment of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran.0000000169894821Lida MoradiDepartment of Physical Education and Sport Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran.2024912Mitochondria play a significant role in morphological and physiological aspects of cells according to their known biological role. Any disruption in mitochondrial function weakens cell function and causes many cell diseases. On the other hand, mitochondria health is associated with cellular efficiency and causes health and physical performance. Evidence shows that one of the molecular mechanisms that regular physical activities, especially aerobic exercises, lead to health is mitochondrial health. Aerobic exercise can regulate and control the mitochondrial unfolded protein response (UPRmt), mitochondrial dynamics (fission and fusion) and mitochondrial. It seems that regulation of mRNA expression of proteins responsible for MQC signaling pathways, reduction of inflammation and oxidative stress is one of the mechanisms by which aerobic exercise benefits mitochondria.

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مرکز منطقه ای اطلاع رسانی علوم و فناوریJournal of Sports Physiology and Athletic Conditioning2783-30384142025316The effect of whey supplementation on some indicators of muscle damage in elite soccer playersThe effect of whey supplementation on some indicators of muscle damage in elite soccer players1218enFatemehBaqeriDepartment of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, IranValiollah ShahediDepartment of Physical Education and Sport Sciences, Parand Branch, Islamic Azad University, Tehran, IranArezoo Kalhor Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Tehran, Iran.0000000257199706MasoumehHashemiDepartment of Physical Education and Sports Sciences, East Tehran Branch, Islamic Azad University, Tehran, IranMahsaShirazi Department of Physical Education and Sports Sciences, East Tehran Branch, Islamic Azad University, Tehran, IranFaezeGholamiDepartment of Physical Education and Sports Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran2024920Background: Aerobic exercise causes muscle damage and inflammation. The aim of this study was to examine the effect of whey supplementation on some indicators of muscle damage in elite soccer players. Materials and Methods: A semiexperimental study was conducted on 18 male football players from the national youth football team (16-18 years old) who took part in the training camp and were divided into two experimental and placebo groups. The experimental group consumed 25 grams of whey protein supplement with purity of over 90% daily for four weeks, and the control group received 25 grams of starch placebo (8). All subjects participated in the football competition camp's routine exercises. Correlated and independent t-tests were used to determine intra-group and inter-group differences. The collected data were analyzed at a significance level of p≤0.05. Results: The results showed that concurrent training and buttermilk consumption has a significant effect on reducing waist circumference, systolic and diastolic blood pressure, low-density protein, triglycerides and a significant increase in high-density protein in overweight girls, p≤0.05. Conclusion: Young athletes can use the whey supplement to speed up the recovery process to prevent muscle pain and damage after sports activities, especially eccentric activities. <span dir="LTR" lang="EN" style="font-size: 12.0pt; line-height: 150%; font-family: 'Times New Roman','serif'; mso-ascii-theme-font: major-bidi; mso-fareast-font-family: 'Times New Roman'; mso-hansi-theme-font: major-bidi; mso-bidi-theme-font: major-bidi; color: #1f1f1f; mso-ansi-language: EN;">

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مرکز منطقه ای اطلاع رسانی علوم و فناوریJournal of Sports Physiology and Athletic Conditioning2783-30384142025316The effect of combined exercises and chromium supplementation on body composition and some liver risk factors in fat men The effect of combined exercises and chromium supplementation on body composition and some liver risk factors in fat men 1926enAlireza AsgariExercise Physiology, Faculty of Human Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran MasoumehHosseiniDepartment of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran.0000000184571924Melika Nikbakht Department of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran.2024925Background: Liver disease is one of the most serious chronic diseases, where inactivity, obesity and lack of antioxidants in the diet are the main causes of this disease. This research investigates the effect of combined exercise and chromium supplements on body composition and liver risk factors in obese men. Materials and Methods: In this semi-experimental research, 40 obese men (20 to 30 years old) with a six-month history of bodybuilding training were selected as research samples and randomly divided into 4 groups (exercise, supplement, exercise + supplement, control). Combined exercises for six weeks, three sessions a week, each session 60 minutes. At first, strength exercises (3 upper body movements and 3 lower body movements) were performed in 3 sets with 8 repetitions and 80% 1RM, and then aerobic exercise (1.5 miles It was done with 70% to 80% of maximum heart rate (on a treadmill). During this period, 200 micrograms of chromium supplement were given to the supplement groups. A two-way variance analysis was used at a significance level of p≤ 0.05. Results: The research showed a significant decrease in fat percentage, abdominal circumference, alanine aminotransferase and alkaline phosphatase in obese men after performing combined exercises and consuming chromium supplements. Conclusion: Combined exercise and chromium supplementation alone can improve liver indices and improve body composition. However, the combination of exercise and chromium supplementation improves body composition and reduces liver enzymes in obese men.

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مرکز منطقه ای اطلاع رسانی علوم و فناوریJournal of Sports Physiology and Athletic Conditioning2783-30384142025316The effect of beta-alanine supplementation and exhaustive activity on carnosine levels, pH, blood lactate and muscle strength of male judo athletesThe effect of beta-alanine supplementation and exhaustive activity on carnosine levels, pH, blood lactate and muscle strength of male judo athletes2736enRezaBehdariDepartment of Physical Education and Sport Sciences, West Tehran Branch, Islamic Azad University, Tehran, Iran. 0000000304374571Ahmad AbdolmalekiDepartment of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran. 2024818Background: Beta-alanine supplementation is a precursor to carnosine, which increases intramuscular carnosine, and the buffering effect may reduce lactic acid accumulation and improve performance. This study investigated the effect of beta-alanine supplementation during exhaustive exercise on carnosine levels, pH, blood lactate, and muscle strength in male judoka athletes. Materials and Methods: 20 judo athletes (mean age 23.26 ± 3.07, body mass index 23.12 ± 2.05) were purposively selected based on inclusion and exclusion criteria, and then the subjects were randomly divided into two groups of 10 people consuming beta-alanine and a placebo group. Performance testing and blood tests were performed before and after exhausting activity (chest press and leg press) with an intensity of 70 to 75% of 1RM in three sets until exhaustion in both groups. The day after the pre-test, supplementation and placebo were started at 6 grams per day at specified hours for 4 weeks, and the post-tests were re-evaluated after the end of the period. A statistical method was used via SPSS21 software. The Shapiro-Wilk test and covariance analysis with a significance level of 0.05 were used to analyze the data. Results: There was no significant difference between the two groups of beta-alanine and placebo supplementation in performance indicators (P>0/05). Conclusion: Co Finally, the results of the study showed that beta-alanine supplementation during the study period improved carnosine levels and reduced blood lactate levels after exhaustive exercise, and may have long-term beneficial effects on performance in professional male judokas.

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مرکز منطقه ای اطلاع رسانی علوم و فناوریJournal of Sports Physiology and Athletic Conditioning2783-30384142025316A Systematic Review and Meta-Analysis on the Influence of Exercise-Induced Oxidative Stress on the Pathogenesis of Infectious DiseasesA Systematic Review and Meta-Analysis on the Influence of Exercise-Induced Oxidative Stress on the Pathogenesis of Infectious Diseases3753enDanielTarmast Department of Physical Education and Sport Sciences, Parand Branch, Islamic Azad University, Parand, Tehran, Iran.00000002983112742024827Background: Exercise-induced oxidative stress (EIOS) plays a pivotal role in immune modulation and the pathogenesis of infectious diseases. While moderate-intensity exercise has been shown to enhance immune defenses and redox balance, excessive or prolonged physical activity can lead to transient immunosuppression, increasing infection susceptibility. This systematic review and meta-analysis aim to evaluate the influence of EIOS on immune function and infection risk across diverse exercise protocols and populations. Materials and Methods: A systematic search was conducted across PubMed, Scopus, and ScienceDirect databases, encompassing studies published up to 2025. Inclusion criteria were controlled trials and observational studies that assessed oxidative stress biomarkers, immune responses, and infectious disease outcomes in human participants. Out of 1,245 initially identified studies, 28 met the inclusion criteria, representing a wide range of exercise intensities and durations. Meta-analytic methods using a random-effects model quantified standardized mean differences (SMD) with 95% confidence intervals (CI). Heterogeneity was assessed via I² statistics, and subgroup analyses were conducted to explore variability by population characteristics and exercise modalities. The review protocol was registered at PROSPERO (CRD42024611777). Results: Moderate-intensity exercise (50–70% VO2max) was associated with significant reductions in pro-oxidant markers, such as malondialdehyde (MDA; SMD: -1.08, 95% CI: -1.57 to -0.58), and enhanced antioxidant capacity, including superoxide dismutase and total antioxidant status (TAS; SMD: 1.45, 95% CI: 0.83–2.06). High-intensity exercise (≥70% VO2max) triggered elevated reactive oxygen species and pro-inflammatory cytokines, leading to a transient immune suppression. Subgroup analyses revealed that sedentary populations experienced amplified oxidative responses compared to physically active individuals. Antioxidant supplementation, particularly with compounds like resveratrol and vitamin C, showed potential in mitigating oxidative damage and improving recovery outcomes. Conclusion: EIOS exhibits a dual nature, where moderate exercise fosters immune resilience and infection prevention, while excessive intensity compromises immune defenses. These findings emphasize the importance of tailored exercise regimens and antioxidant strategy to optimize health outcomes. Further research is needed to investigate long-term effects and develop standardized intervention protocols for at-risk populations.

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مرکز منطقه ای اطلاع رسانی علوم و فناوریJournal of Sports Physiology and Athletic Conditioning2783-30384142025316The effect of concurrent training and buttermilk consumption on lipid profile and blood pressure in girls The effect of concurrent training and buttermilk consumption on lipid profile and blood pressure in girls 5463enMasoumehHosseiniDepartment of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran.0000000184571924Mohammadreza GoshtasbiDepartment of Physical Education and Sports Sciences, East Tehran Branch, Islamic Azad University Tehran, IranRoyaZohrabiDepartment of Physical Education and Sports Sciences, East Tehran Branch, Islamic Azad University Tehran, Iran.PayamEsmaelianDepartment of Physical Education and Sports Sciences, East Tehran Branch, Islamic Azad University Tehran, Iran.2024827Background: The aim of this study was to investigate the effect of concurrent training and buttermilk consumption on lipid profile and blood pressure in girls. Materials and Methods: In this semi-experimental study, 40 overweight non-athletic students aged 18 to 25 years were selected as the research sample. Subjects were randomly divided into 4 groups: concurrent training, buttermilk consumption, concurrent training + buttermilk and control. The subjects did resistance + aerobic exercise three times a week for 8 weeks. Buttermilk groups consumed 300 ml buttermilk for 8 weeks and 3 meals a day. Results: The results showed that concurrent training and buttermilk consumption has a significant effect on reducing waist circumference, systolic and diastolic blood pressure, low-density protein, triglycerides and a significant increase in high-density protein in overweight girls, p≤0.05. Conclusion: Concurrent training can improve lipid profile indicators. Buttermilk can be a suitable facilitator to increase the effectiveness of these training

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