Exercise Physiology
Fahimeh Kazemi
Abstract
Aim: Portulaca oleracea has anti-hyperglycemic and anti-hyperlipidemic properties. High-intensity interval training (HITT) leads to weight loss by increasing fat oxidation in shorter duration. In the present study, the effects of Portulaca oleracea supplement and HITT on glycemic control and dyslipidemia ...
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Aim: Portulaca oleracea has anti-hyperglycemic and anti-hyperlipidemic properties. High-intensity interval training (HITT) leads to weight loss by increasing fat oxidation in shorter duration. In the present study, the effects of Portulaca oleracea supplement and HITT on glycemic control and dyslipidemia in obese female students was evaluated. Method: In an experimental study, 42 obese female students (average age: 23 years and body mass index (BMI): 31.78 ± 1.47 kg/m2) were selected and divided into four groups: control, supplement, training, and supplement with training. Supplement included two capsules of 0.5 g of Portulaca oleracea per day and training included HIIT (with an intensity of 75-90% of maximum heart rate) for 8 weeks. Anthropometric indexes, plasma glucose and lipids were measured before and after the test. Data were analyzed using two-way repeated measures ANOVA.Results: There was a significant difference between weight, BMI, glucose, triglyceride (TG) and high-density lipoprotein-cholesterol (HDL-C) in the four groups (P<0.05), so that weight, BMI, glucose, TG in three groups versus the control group decreased significantly and HDL-C increased significantly (P<0.05), and these changes were more in the supplement with training group than in the supplement and training groups alone. However, there was no significant difference between total cholesterol (TC) and low-density lipoprotein-cholesterol (LDL-C) in the four groups (P>0.05).Conclusion: The concomitant consumption of Portulaca oleracea supplement and HIIT can have more effect on improved glycemic control and decreased dyslipidemia in obese female students than the consumption of supplement and HIIT alone.
Exercise Physiology
Hamidreza Nayeri khoob
Abstract
Galectin-3 is a member of the galectin family and galectin-3 used as a diagnostic or prognostic biomarker for certain types of heart disease, kidney disease and cancer. Intensive exercise increases the levels of this protein, but the effect of regular exercise to ameliorate galectin-3 responses to high-intensity ...
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Galectin-3 is a member of the galectin family and galectin-3 used as a diagnostic or prognostic biomarker for certain types of heart disease, kidney disease and cancer. Intensive exercise increases the levels of this protein, but the effect of regular exercise to ameliorate galectin-3 responses to high-intensity exercise is not well known. The present study was done to examine the effect of regular resistance training on galectin-3 responses to a bout of heavy resistance training. Eleven young men (age: 26.6±1.5 years old) volunteered to participate in this quasi study. One reparation maximum (1-RM) was measured and the subjects performed a heavy resistance exercise trial consisted of eight exercises (chest press, triceps extension, latissimus pull down, shoulder press, arm curls, leg extension, leg curls, and squat) of 8 repetitions with 3 sets at 80% of 1RM. Thereafter, all the subjects performed 3 sets of the same resistance training with 65-80% 1RM, 3 days a week for 8 weeks. 48h after the last session of training, a bout of heavy resistance exercise was done again. Blood samples were taken at baseline and immediately after the heavy resistance exercise trials. The results demonstrated that galectin-3 increases after the first bout of heavy resistance exercise (P<0.05), while galectin-3 concentration reduce after the 8 weeks of regular resistance training and it remain low after the second bout of heavy resistance exercise. Generally, we can conclude that regular resistance exercise is effective to ameliorate galectin-3 responses to a bout of heavy resistance training in young men.
