Seyyed Reza Attarzadeh Hosseini; Zahra Hojati Oshtovani; Hossein Soltani; Seyyed Alireza Hossein Kakhk
Volume 19, Issue 1 , March and April 2012, , Pages 42-51
Abstract
Background and objective: There is a significant relationship between pulmonary function and general health and mortality. The matching between ventilation and perfusion is an effective factor in pulmonary function. This study investigated the effect of 24 sessions of interval aerobic training on pulmonary ...
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Background and objective: There is a significant relationship between pulmonary function and general health and mortality. The matching between ventilation and perfusion is an effective factor in pulmonary function. This study investigated the effect of 24 sessions of interval aerobic training on pulmonary volumes and capacities and maximal oxygen consumption in sedentary girl students.
Materials and methods: In this experimental study with pre- and post-test design, 30 healthy sedentary girl students were selected and randomly allocated to experimental (N = 15) or control (N = 15) groups. The experimental group performed 24 sessions of 45 minute interval aerobic running while the control group had no training program. Before and after the training program, pulmonary volumes and capacities and peak oxygen consumption were evaluated via spirometry tests and Bruce treadmill protocol, respectively.
Results: Exercise training resulted in 62% increase in ERV (p = 0.004), 65% increase in PEV (p = 0.03), 35% increase in MVV (p = 0.03), and 23% increase in VO2max (p = 0.001). Also, training had no significant effect on TV, IRV, FVC, PIV, and FEV1/FVC. In spite of increase in TV, IRV, and FEV1, FVC, PIV, MEF-25%FVC, FMEF-25%-75%FVC, and FEV1/FVC, training had no significant effect on these variables. However, the effect of training on the increase of ERV, PEF, MEF-50%FVC, MEF-75%FVC, MVV and VO2peak was significant (p < 0.05).
Conclusions: Aerobic training in young girls improves capability and coordination of respiratory muscles, especially expiratory muscles, and causes improvement in lung function via increasing some lung volumes and capacities.
Mohammad Reza Hamedinia; Teyyebh Amiri Parsa; Marziyeh Saadat Azarnive; Seyyed Ali Reza Hosseini Kakhk
Volume 18, Issue 3 , September and October 2011, , Pages 188-197
Abstract
Background and Purpose: Obesity is associated with various metabolic and inflammatory impairments، the effects of which have not been sufficiently studied. Therefore، the purpose of this study was to examine the influence of an 8-week strength training and aerobic training program and a 10-day detraining ...
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Background and Purpose: Obesity is associated with various metabolic and inflammatory impairments، the effects of which have not been sufficiently studied. Therefore، the purpose of this study was to examine the influence of an 8-week strength training and aerobic training program and a 10-day detraining on lipid profile and CRP in obese girls. Methods and Materials: In this experimental study، thirty-six obese female university students were voluntarily recruited and randomly assigned into three groups: control (n=11)، aerobic training or AT (n=12) and strength training or ST (n=13). ST and AT groups trained for 8 weeks، 4 times/week، 60 min/session، with 60 to 70% of 1 repetition maximum for ST، and 65 to 75% of HRmax for AT. Blood samples were taken at baseline، 24 hours after the last exercise session and after 10 days of detraining on fasting state. Data were analyzed in SPSS 16 using repeated measure analysis of variance (RM-ANOVA). The alpha level was established at P0.05). Also، no significant differences were found between the three groups (P>0.05). TC also decreased in AT and ST groups (9% and 19%، respectively); however، the change was not significant (P>0.05). After training no significant changes in HDL، HDL2، HDL3، LDL، and CRP were observed (P>0.05). Ten days of detraining also did not result in any significant alterations in the lipid profile or CRP (P>0.05). Conclusion: Eight weeks of aerobic and strength training have no significant effect on the lipid profile and CRP in obese girls.
Seyyed AliReza Hosseini Kakhk; Hadi Yarahmadi; MohammadReza Hamedinia; AmirHossein Haghighi
Volume 17, Issue 2 , July and August 2010, , Pages 108-115
Abstract
Background and Purpose: Appetite is one of the factors affecting the energy intake equation and has different control and regulatory levels. One of the probable factors affecting it is physical activity. The purpose of the present study was to examine the effects of moderate and heavy resistance exercise ...
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Background and Purpose: Appetite is one of the factors affecting the energy intake equation and has different control and regulatory levels. One of the probable factors affecting it is physical activity. The purpose of the present study was to examine the effects of moderate and heavy resistance exercise on appetite, glucose, glycerol and lactate of the serum in healthy men. Methods and Materials: In this experimental study, out of the university employees, 13 male volunteers were recruited for the study by their own written informed consent, and were assigned into three modes of control, moderate resistance exercise (with intensity of 70% of 1RM) and heavy resistance exercise (with intensity of 80% of 1RM) groups. The process consisted of 8 different movements arranged in 3 sets with 10 repetitions within 90 minutes. The participants' appetite parameter was recorded by appetite questionnaire before collecting blood samples. Data was analyzed using repeated measures ANOVA in SPSS 13 at a significance level of P