Showing 8 results for Women
Mojtaba Salehpour, Faezeh Rezvani, Farzane Hatami,
Volume 0, Issue 0 (11-2019)
Abstract
Background: GDNF protein is involved in neurocognitive plasticity and sarcopenia, and the increase of GDNF due to resistance training leads to healthier aging and delays sarcopenia, and TRX resistance training improves the performance and morale of the elderly. The purpose of this research is the effect of six weeks of TRX training on the level of GDNF protein in the serum of elderly women.
Materials and methods: The purpose of the research is applied with a semi-experimental method including pre-test - post-test with control group and field and laboratory data. 28 elderly women aged 55 to 75 years old from the retirement center of Shahid Rajaee Tarbiat University of Tehran were randomly assigned to two experimental groups (15 people) with an average age of 60.86 ± 5.60, weight 75.00 ± 11.95, BMI ± 4.22 27.65 and six weeks of TRX training and the control group (13 people) with an average age of 64.38 ± 4.03, weight 72.69 ± 4.95, BMI 28.33 ± 2.18 and no training were divided. In the first and sixth weeks, both groups were tested for upper body strength, lower body strength and GDNF protein level by ELISA method.Shapiro-Wilk test was used to check the normality of data distribution, Levine's test for homogeneity of variances and one-way analysis of covariance test at a significance level of P < 0.05 was used to test hypotheses and statistical calculations were performed with spss24.
Results: In the results of covariance analysis of upper body and lower body strength, there is a significant difference between the two groups at the level of P <0.05. By removing the effect of the pre-test variable, there is a significant difference between the amount of GDNF protein in the experimental and control groups. By comparing the adjusted averages in the experimental and control groups, the amount of GDNF protein in the experimental group (443.102 ± 15.751) is significantly higher than the control group (209.756 ± 17.029) (P < 0.05).
Conclusion: Six weeks of TRX training had a significant effect on the amount of GDNF protein, upper and lower body strength of elderly women, and it can probably be effective in reducing or delaying sarcopenia.
P Seif, M.r Dehkhoda, H Rajabi,
Volume 9, Issue 1 (3-2011)
Abstract
In this study, the effects of vibration training on physical fitness factors in elderly
females investigated. 40 subjects with age 61/09±6/24 yrs, weight 65/84±11/98
kg, height 156/99±5/06 cm and body mass index 26/64±4/23 kg/m2 voluntary
participated in this study and were divided in vibration (n=16), non-vibration
(n=14) and control (n=10) groups. The vibration group performed exercises on
the device (JET VIB) for 10 days with 35-40Hz frequency, 12 mm amplitude and
eight positions. The non-vibration group performed the same exercises (in
position, set and time) on the turned off device. The control group did not
exercise during the study. Leg and hand strength (dynamometer), flexibility (sit
and reach), balance (standing time on one leg) and body composition (skinfold
with caliper) were measured. Paired sample t test and one way ANOVA used
for data analysis. In within group analysis, vibration group showed significant
increase in right (p=0/02) and left hand strength (p=0/01), leg strength
(p=0/008), Flexibility (p=0/005) and left leg balance (p=0/006). In non vibration
group just significant increase in right hand strength (p=0/01). There was no
significant change in control group. Between group analysis showed, significant
increase in right (p=0/006) and left hand strength (p=0/003), leg strength
(p=0/004) and left leg balance (p=0/01) in vibration group comparison with to
other groups. There was no significant change in right leg balance (p=0/),
Flexibility (p=0/005) and body composition in any of groups. Due to the results
short term vibration training can improve flexibility, strength and balance in
elderly subjects.
, , ,
Volume 9, Issue 2 (10-2011)
Abstract
The purpose of this study was to determine the effect of two different intensities
of physical activity on circulating endothelial progenitor cells (EPC) in healthy
young women. For this purpose, 15 female students from volunteers were
randomly selected via questionnaire (group 1: mean age 22 ±1/8 years, BMI
20/81±1/91 kg/m2, n = 8. group 2: mean age 21 ±1/5 years, BMI 20/38 ± 1/66
kg/m2, n = 7). Each group ran 30 minutes at their particular (group 1: ٧0%
HRmax & group 2: ٨5% HRmax) activity on treadmill. Blood samples were
taken from all subjects for measurement of circulating endothelial progenitor
cells CD34+ and same Isotype control, white blood cells and platelets before
and10minutes after the test. The related T-test (paired) were used for
comparisons within a group , to compare variables between groups were used
one way of variance analysis (ANOVA) for determining the relationship between
variables were used Pearson correlation coefficient. Statistical significance was
accepted as a P value of <0.05. Results of this study showed that both
intensities of physical activity increased significantly the number of EPC, WBC
and Plt, this affects was higher in intensity 85% HRmax, but was not statistically
significant. Just was observed significant association between EPC and platelet.
In summary, can be expressed that physical activity with intensity 70% and 85%
HRmax can increase re-enthotelialisation due to mobilization of EPC, and with
attention to significant association between EPC and platelet these cell
mobilization may serve as a physiologic repair or compensation mechanism in
acute inflammatory injury.
Dr Ramin Amir Sasan, Dr Kamal Aziz Beigi, Dr Bahman Mirzaei, Mrs Khorshid Parsafar,
Volume 14, Issue 11 (4-2016)
Abstract
Homocysteine and insulin resistance in postmenoupausal women rises due to decrease in estrogen, low mobility and weight gain which increase the cardiovascular diseases. The aim of this study was to examine the effects of aerobic exercise training status on response of homocysteine and insulin resistance to aerobic exercise in active and nonactive obese postmenopausal women. Therefore, 21 obese postmenopausal women with the age of 48 - 65 yrs voluntary participated in the study and assigned in active (n=11) and nonactive (n=10) groups. Aerobic exercise was performed with 70-75 percent of maximum heart rate. Blood sample was obtained before and after exercise, and 10 hours following fasting. Results showed that baseline levels of homocysteine (p= 0.003) and insulin resistance (p=0.003) were significantly lower in active subjects compared with inactive ones. However, homocysteine level was significantly (p=0.028) lower in active than to nonactive subjects following aerobic exercise. It can be concluded that regular aerobic training improves insulin resistance and homocysteine levels in obese postmenopausal women, however, a session of moderate aerobic exercise could not influence on insulin resistance. Although, homocysteine response was higher in active group. It seems that changes manner of two variable to aerobic exercise is different
S Sadeghi, M.r Asad, M.h Ferdowsi,
Volume 15, Issue 13 (9-2017)
Abstract
Overweight is one of the most important reasons for increasing the liver enzymes that causes liver and cardiovascular disease. The purpose of this research is to investigation the effects of 12weeks training on liver enzymes. Subjects of this research is 26 woman with BMI≥29 and average age Between 42 to 52, they divided to two main groups: experimental and control group n=13. 24 hours before training and 48 hours after sampling, body composition and oxygen maximum, were done for all of the subjects. Experimental group have done 12 weeks endurance training that contains 3 session between 40 to 80 percent of heart beat and duration of 15 to 30 min. Data was analyzed by using of covariance and T test,(a≤0./05),results showed that in experimental group there is significant increase in oxygen maximum (p=0/006) and significant decrease observed in BMI (p=0/001). But not observed significant change in ALT enzymes (p=0/493) and AST (p=0/403). Results showed that the impacts of 12 weeks endurance training on liver enzymes of those women was not significant because of not preparing of subjects, also high level of BMI in both groups are possible. Therefore, non significant increase of ALT exercise group be investigated, the longer half life of this enzyme is (40+12) hours. So, it seems that we need more than 48hours to recovery the enzyme.
F Sakipour, D H Mojtahedi,
Volume 15, Issue 13 (9-2017)
Abstract
Urinary incontinence has an increasing process among aged women and its statistics in women in The Home for the Elderly is more than others. The purpose of this study is to investigate effect of 4 weeks Spinal Stabilization exercises on urinary incontinence of the elderly people. In this study, participants are elderly women from age of 50 to 70 years old (67±11kg and BMI of 27±4kg/m2), who were placed in two experimental and control groups (10 people in each group) for 4 weeks (3 sessions per week). Urinary incontinence of the participants was measured through ICIQ-OAB questionnaire in pretest and posttest steps. According to abnormal distribution of data, nonparametric tests are used such as Wilcoxon and U Mann Whitney tests to test intragroup and intergroup variations at the level of p≤0.05. Spinal stabilization exercises caused significant reduction of urinary incontinence in elderly women (p=0.001), so that the exercises can result in insignificant reduction of urinary frequency per day (p=0.083), significant reduction of urinary frequency per night (p=0.001), stress of fast use of WC (p=0.001) and leakage of urine (p=0.002). Moreover, intergroup investigations showed that experimental group has lower urinary incontinence than control group (p=0.01). Spinal stabilization exercises can result in reduction of urinary incontinence and its components through strengthening pelvic floor and abdominal muscles.
R Shiri, H Nikbakht, M Gholami, Kh Ebrahim,
Volume 18, Issue 19 (7-2020)
Abstract
Time under Tension of muscle is one of the variables of strength training that contributes to its adaptation. The present study was conducted the effects of six weeks of resistance training with the varying Time under Tension of muscle on VEGF and endosotene serum levels in healthy young women. This study was conducted on 20 female students (22.65±2.03years) Subjects were randomly and equally assigned to two groups with a Time under Tension of 1s- 1s(Normal Speed Contraction) and 3s- 3s (slow Speed Contraction). The exercise load was the same in both groups and resistance training was done in a circular manner for six weeks, three days a week in eight stations. Blood samples were taken from the subjects to study research variables before the training period and 48h after the last session of the training. Data were analyzed by covariance analysis at a significant level of P≤0.05. There was no significant difference between the serum levels of VEGF and endostein in both groups (P≥0.05). In the strength test, the SSC group experienced increase power further. However, there was no difference between the two groups in indicators related to angiogenesis for six weeks and most probably, for this indicator needed more training time, but practice with more Time under Tension (3s- 3s) can lead to increase power further.
Effat Hosseinzadeh, Mansour Eslami,
Volume 18, Issue 20 (11-2020)
Abstract
Introduction: The ability to attain high level of speed is an essential component of success in many sports fields. However, physical qualities that underpin this ability remain unclear. The purpose of this study was to investigate the role of leg stiffness and vertical stiffness in predicting sprint running. Methods: 50 healthy females were selected among physical education students. The required kinetic and kinetic data were collected in three dimensions. The kinetic and kinematic variables rrunning skill was used to measure both stiffness variables. A multivariate regression model was used to examine the possibility of predicting running speed using leg stiffness and vertical stiffness. Findings: The results of multiple regression showed that there is a significant relationship between the two-leg stiffness and vertical stiffness with mean running speed (R = 0.671), and these two variables can predict 42% of Average speed variation (Adj. R square=0.426). Conclusion: The results of the present study showed that the ability of individuals to sprint running is likely to be significantly dependent on leg stiffness and vertical stiffness. The results of this study can provide important information for designing training programs and talent detection for trainers and specialists in this field.
