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Showing 3 results for Jalalvand
Effects of COQ10 Supplementation and Swimming Aerobic Training on Anaerobic Threshold and Heart Rate Deflection Point in Active Women
Bahareh Jalalvandi, Parichehr Hanachy, Parvaneh Nazarali, Saeed Naghibi,
Volume 17, Issue 1 (4-2014)
Abstract

Background: In recent years, studies have been conducted on the role of coenzyme Q10 in improvement of sport performance and also cardiovascular health. The present study investigate effect of coenzyme Q10 supplementation combined with swimming aerobic exercises on Heart Rate Deflection Point (HRDP) and VO2max in active women.

Materials and Methods: A number of 32 trained women with the average age of 21/25 ± 0.86 years and Body Mass Index (BMI) of 20/127± 1.06 kg/square meter were selected randomly and were divided into eight -member each groups: Control, Supplement, Supplement – Exercise and Exercise. The subjects participated in four-week consumption of coenzyme Q10 and swimming exercises (three sessions in a week).The consumption rate of coenzyme Q10 100 mg/kg/d was in the form of capsule that subjects took it during lunchtime. Before and after a four-week period, the subjects performed an incremental exhaustive test on treadmill, using respiratory gas analyzer to determine HRDP and VO2max. It should be noted that data analysis was conducted using One-Way Variance Analysis Test (ANOVA) in P<0.05 significant level.

Results: Based on paired T-Test results, despite HRDP had increased in each four groups but the significant increase was observed only among groups in VO2max (P=0.008) based on ANOVA Test (P<0.05).

Conclusion: Although positive changes were observed inside the group after passage of four weeks, coenzyme Q10 supplementation combined with swimming aerobic exercise had not any significant effect on HRDP only increased VO2max.


Effect of Myrtus Communis Hydro-Alcoholic Extract on Chronic Restraint Stress-Induced Spatial Memory Deficit in Adult Male Rats
Fatemeh Jalalvand, Masoumeh Asle-Rousta,
Volume 21, Issue 3 (6-2018)
Abstract
Background and Aim: Chronic restraint stress impairs spatial learning and memory. Myrtle (Myrtus communis) has antioxidant, antidiabetic, hepatoprotective and neuroprotective properties. The aim of this study was to investigate the effect of myrtle hydroalcoholic extract on chronic restraint stress-induced spatial learning and memory deficit in adult male Wistar rats.
Materials and Methods: In this experimental study, 80 adult male Wistar rats were allocated to eight groups (10 in each) included control group (intact), myrtle0.75, myrtle1.5, myrtle3 groups (were gavaged with hydroalcoholic extract of myrtle at 0.75, 1.5 and 3 mg/ kg bw doses), stress group (restrained in restrainers for 6 hours per day for 21 consecutive days), stress- myrtle0.75, stress-myrtle1.5 and stress- myrtle3 groups (received myrtle extract at 0.75, 1.5 and 3 mg/ kg bw doses and exposed to chronic immobility stress). Spatial learning and memory were examined through the Morris water maze test.
Findings: Chronic immobilization stress caused spatial learning and memory impairment. Consuming doses 1.5 and 3 of Myrtle extract to stressed animals caused significant decrease in spent time and swam distance to reach the hidden platform (p<0.05) and increased time lapsed in target quadrant comparing with stress group (p<0.05).
Conclusion: It has been concluded that myrtle extract can improve spatial learning and memory in rats exposed to stress in a dose dependent manner.

The Effect of Backward Gait Training Protocol on Postural Sway and Balance in Elderly Men with a History of Fall
Ali Jalalvand,
Volume 28, Issue 2 (4-2025)
Abstract
Introduction: This study aimed to investigate the effect of the backward gait training protocol on postural sway and balance in elderly men with a history of falls.
Methods: A total of 28 healthy elderly individuals with a history of falls participated in this research. The backward gait protocol was considered the independent variable, and the mean parameters of postural sway, including range, center of pressure displacement, center of pressure velocity, and center of pressure acceleration, were examined as dependent variables. A Kistler force platform was used to assess postural sway. A mixed-design repeated measures ANOVA was performed at a significance level of 0.05.
Results: No significant differences were found in the anterior-posterior amplitude and medio-lateral acceleration of the center of pressure between healthy elderly individuals and those with a history of falls (P > 0.05). However, individuals with a history of falls exhibited greater medio-lateral amplitude, anterior-posterior displacement, anterior-posterior velocity, and anterior-posterior acceleration of the center of pressure (P = 0.001). Conversely, they demonstrated lower medio-lateral displacement (P = 0.001) and medio-lateral velocity of the center of pressure (P = 0.005).
Conclusions: Changes in center of pressure parameters may predict fall risk in the older adults. These parameters have varying sensitivities for detecting subtle differences in postural control. The responses of various parameters are influenced by compensatory mechanisms, weaknesses, and balance disorders. The backward gait protocol serves as a targeted intervention to improve balance and stability in elderly individuals at risk of falls.
 
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