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Showing 4 results for Vitamin D
Response of ostosis metabolic markers to aerobic exercise with blood flow restriction and vitamin D supplement among middle aged females
M Naghibi,
Volume 17, Issue 17 (4-2019)
Abstract
Osteoporosis is characterized by low bone mineral density resulting into an increased risk of fracture (9). The aim of the study is determine the effect of aerobic exercise with blood flow restriction (BFR) and vitamin D supplementation on ostosis metabolic markers (OMM) among middle aged females. In this study 30 females with age of 42.76±7.44, height of 157.90±5.74, weight of 70.55±9.68 and BMI of 28.33±3.87, divided in three groups of 10 subjects, randomly. Two empirical Groups with and without BFR, both with vitamin D supplementation, one hour before training, performed aerobic exercise during eight weeks, three days a week, one hour a day, with 50 - 70% intensity of maximal heart rate. Density of OMM, calcium, phosphorous and alkaline phosphate examined in lab, 48 hours before and after training period in saving status before breakfast. Aerobic power of empirical groups determined with 12 minutes run/ walking cooper test. For data analysis used descriptive statistics, ANOVA and analysis variance with repeated measures. Results showed that eight weeks exercise with BFR and vitamin D supplementation, the density of calcium and phosphorous increased significantly. The density of Alkaline - phosphate did not show variation significantly. In the other hand, only the rate of calcium showed variation significantly, which increased in without BFR more than others. In conclusion, aerobic exercise with and without BFR and vitamin D supplementation can increase the density of OMM, calcium, phosphorous and alkaline- phosphate. But only the density of calcium showed increasing significantly.

The effect of resistance training and vitamin D supplementation on some indicators of renal function in male rats with renal failure
Somaieh Mahdaviyan, Farshad Ghazalian, Khosro Ebrahim,
Volume 19, Issue 21 (9-2021)
Abstract
The aim of this study was to investigate the effect of 8-weeks of resistance training and vitamin D supplementation on some indicators of renal function in male rats with renal failure. Methods: In this experimental study, 16 male rats (7-8 weeks and mean weight: 350 to 370 gr) were divided into four groups (n = 4): training, supplement, training and supplement and control group. After induction of kidney damage through NX 5.6 surgical method and two weeks later, resistance training was performed for 8 weeks. Simultaneously, 1000 unit of vitamin D per week intramuscularly was injected. Finally, glomerular purification (using urea and creatinine levels) and serum levels of vitamin D, calcium and phosphorus were measured. Descriptive statistics, one-way ANOVA test and Tukey post hoc test were used to analyze the data. The results showed that glomerular filtration and vitamin D in the training and supplementation groups showed a significant increase compared to the control and training groups (P<0.05). However, Urea and creatinine and serum calcium and phosphorus significantly was decreased (P<0.05). It seems that the simultaneous use of resistance training and vitamin D supplementation can affect glomerular filtration rate.
Association of Arterial Stiffness Following Glucose Uptake and Exercise with Baseline Vitamin D Levels in Inactive Men and Women
Dr Adel Donyaei, Mustafa Rahimi, Fatemehsadat Nabavi,
Volume 20, Issue 24 (3-2023)
Abstract
vitamin D deficiency is associated with many cardiovascular disorders. Arterial stiffness responses also depend on nutritional and exercise. Therefore, the study aimed to investigate the relationship between arterial stiffness response after glucose uptake and exercise with baseline levels of vitamin D in inactive men and women.
The present study was an analysis correlation study, and the subjects were 88 inactive men and women with an age range of 20 to 45 years. Vitamin D, body composition, and arterial stiffness, were measured. Subjects then ran for 30 minutes at 65% of maximum heart rate. Also, 75g of glucose was given to the subjects after 30 minutes of activity, 60 minutes after the of glucose consumption and arterial stiffness was measured. Data were analyzed using Pearson correlation test and analysis of variance with repeated measures at a significant level (P≤0.05).there was a negative and significant relationship between baseline levels of vitamin D and changes in CAVI in women (p=0.001 and r=-0.559) and in men a positive and significant relationship (p=0.005 and r=0.413).It seems that basal levels of vitamin D can be effective in the vascular response; due to little research, more research is need.

The Effect of 12 Weeks of Resistance Training, Total Body Vibration and Combination on Serum Vitamin D Concentration, Bone Mineral Density and Functional Indices in Elderly Men with Osteoporosis: A Randomized Controlled Trial
Mr Kourosh Dehghan, Dr Khosro Jalali Dehkodi, Dr Farzaneh Taghian, Dr Mehdi Kargarfard, Dr Bahram Abedi,
Volume 21, Issue 25 (9-2023)
Abstract
Osteoporosis is the most common metabolic bone disease, and various factors such as low body mass index and lack of physical activity are involved in the occurrence of this disease.  The aim of this study was to evaluate the effect of circular resistance exercises, whole body vibration and their combination on 25-hydroxyvitamin D, bone mineral density and functional factors in elderly people with osteoporosis. In a randomized controlled experiment with a pre-test-post-test design, 60 elderly men with osteoporosis with an age range of 65-78 years were randomly divided into four exercise groups: Circular resistance training (CRT, n=15), whole body vibration training (WBVT, n=15), combined (CRT + WBVT, n=15), and control (n=15). CRT with an intensity of 30 to 60% of the maximum repetition strength (1RM) was performed 3 times a week for 12 weeks. WBVT were performed in the form of 10 combined lower body and upper body movements with a frequency intensity between 25 to 45 Hz, an amplitude of 5 to 8 mm, and a time of each movement of 60 to 100 seconds, While the control group maintained their usual lifestyle. Body composition variables include; Fat-free weight (LBM), soft tissue weight (SLM) and skeletal muscle weight (SMM) using Body Composition Analyzer, bone density measurement using DEXA test and 25-hydroxyvitamin D3 before and after the last training sessions. Data analysis was done by using paired sample t-test and analyze of covariance (ANCOVA) at a level less than 0.05. After 12 weeks of intervention, a significant improvement in BMD, balance, coordination, muscle strength, lean weight and skeletal muscle weight was observed after CRT and CRT + WBVT exercises in comparison with the control group. However, no significant differences were observed between the groups in the variables of weight, body mass index, lean weight, soft tissue weight, skeletal muscle weight (SMM), BMD, balance, hydroxyvitamin D3 (p> 0.05). The findings of the current research show that performing CRT, WBVT and CRT + WBV exercises as a non-pharmacological treatment method can cause a significant increase in bone density and functional indicators of elderly men and has no effect on the hormonal indicators of elderly men with osteoporosis. Further studies with long-term follow-up should be considered to confirm these findings.

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