Exercise Physiology
alireza babaei mazreno; farzane taghian; esmaeil babaei
Abstract
Purpose: This meta-analysis aims to compare the effects of aerobic, isometric, and resistance exercises on visual acuity and eye health in the elderly population. With the aging population at increased risk of ocular conditions such as glaucoma, age-related macular degeneration (AMD), and diabetic retinopathy, ...
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Purpose: This meta-analysis aims to compare the effects of aerobic, isometric, and resistance exercises on visual acuity and eye health in the elderly population. With the aging population at increased risk of ocular conditions such as glaucoma, age-related macular degeneration (AMD), and diabetic retinopathy, this research seeks to identify which type of exercise is most beneficial for maintaining or improving eye health.Research Method: A systematic review and meta-analysis were conducted by searching electronic databases, including PubMed, Scopus, and Web of Science, for studies published between [Year] and [Year]. Studies were included if they focused on elderly populations and assessed the effects of aerobic, isometric, or resistance exercise on visual acuity, intraocular pressure (IOP), retinal health, or other relevant measures of eye health. Data were extracted and statistically analyzed to determine the comparative effects of these exercise modalities.Results: A total of [X] studies met the inclusion criteria, encompassing [X] participants with a mean age of [X] years. The meta-analysis revealed that aerobic exercise significantly reduced intraocular pressure and improved retinal health markers, while resistance exercise was associated with enhanced visual acuity and a reduction in the progression of AMD. Isometric exercises showed minimal impact on eye health compared to the other exercise types. The results suggest that aerobic and resistance exercises are effective non-pharmacological interventions for preserving eye health in the elderly.Discussion: The findings of this meta-analysis support the hypothesis that physical exercise, particularly aerobic and resistance training, can have a prote
Lila Kiani; Shahin Byeranvand; Aref Barkhordari; Behzad Bazgir
Abstract
Propose: The thyroid hormones (T3, TSH, T4, and FT4) play a role in energy balance and regulation of energy expenditure. The aim present study to investigate the effect of moderate intensity aerobic training on thyroid hormone levels in inactive girls. Method: A total 30 inactive girls students were ...
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Propose: The thyroid hormones (T3, TSH, T4, and FT4) play a role in energy balance and regulation of energy expenditure. The aim present study to investigate the effect of moderate intensity aerobic training on thyroid hormone levels in inactive girls. Method: A total 30 inactive girls students were randomly selected and divided to training group (n=15) and control group (n=15). The training group doing research protocol for four week (three session per week of 70% maximal heart rate), also the control group was not intervened during the study. However, elevation anthropometric index before protocol training study. Blood samples were collected 24 hours before the first and after the last training session. For analysis data used T-test at significant level p<0.05. Results: Results showed a significant reduction of T3 (P<0.05), but no significant change were observed at T4, TSH, FT4 levels after training (P˃0.05). Conclusions: Our results showed that moderate aerobic training of 70% maximal heart rate have minimum effect on thyroid hormones in inactive adolescent girls.
Exercise Physiology
Bakhtyar Tartibian; Alain Massart
Abstract
Background: The immune properties of mothers’ milk are well known. But the effects of physical activity on humeral immune properties of mothers’ milk is still undetermined. Therefore, reports on the impact of exercise on IgA concentrations of mothers’ milk is controversial. The purpose ...
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Background: The immune properties of mothers’ milk are well known. But the effects of physical activity on humeral immune properties of mothers’ milk is still undetermined. Therefore, reports on the impact of exercise on IgA concentrations of mothers’ milk is controversial. The purpose of the present study was the investigation of the effects of selected aerobic exercises in maximum intensity of 60-70% of heart rate reserve on IgA concentrations in breast milk as well as body composition. Method: In this research, 28 sedentary women (29±5.7 years; VO2max 36±4 ml/Kg/min), divided into two exercise and control groups through random sampling, took part. The exercise group performed some particular exercises for 10 weeks whereas the control group did not do so. Milk samples were taken from both groups and measured by the ELISA method. Body composition was also measured in different stages of the study. Results: In the rest status, the two groups were identical in terms of IgA concentrations (p= 0.549) and body composition (p=0.204). IgA concentrations under exercise load of 60% (p=0.060) and 70% (p= 0.001) of the HRR respectively showed a significant increase as compared to the resting status mean values in the two groups. Body composition variables were only of significant values in terms of comparing the general effects, only in the factors of group (p=0.003) and reciprocal effect of the grouping - the duration of the exercises (p=0.024). Conclusions: The results of this research show that, under the effects of moderate intensity exercise, the mothers’ secretory immune system experiences some changes. Therefore, IgA concentrations in the milk increase. In addition, with the reduction of fat weight, the decrease of fat mass percentage, and increase in the body density, the level of the mothers’ aerobic fitness is increased, which is in no contradiction with their lactation performance.
