ORCID Profile
0000-0001-8833-7174
Current Organisation
University of Technology Sydney
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: SAGE Publications
Date: 02-2013
DOI: 10.2466/06.15.29.PMS.116.1.340-351
Abstract: The effect of a 12-week high-intensity intermittent exercise (HIIE) intervention on the rating of perceived exertion (RPE) response of young males was examined. Participants ( N = 38 M BMI = 28.7 kg · m 2 , SD = 3.1 M age = 24.9 yr., SD = 4.3) were randomly assigned to either an exercise or control group. The exercise group received HIIE three times per week, 20 min. per session, for 12 weeks. RPE was assessed before and after HIIE training and during pre- and post-maximal oxygen uptake (VO 2 max) testing. After HIIE training, RPE was significantly higher in Weeks 11–12 compared to Weeks 1–2. In contrast, heart rate was similar throughout training. Comparing post- to pre-VO 2 max test, RPE was significantly lower in the exercise group, whereas for controls, RPE was similar. Aerobic power improved 15% for the exercise group, with no significant change for controls. HIIE resulted in significant increases in RPE, whereas RPE during the VO 2 max test was significantly decreased.
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 05-2011
Publisher: Hindawi Limited
Date: 2012
DOI: 10.1155/2012/480467
Abstract: To determine the effect of a 12-week high intensity intermittent exercise (HIIE) intervention on total body, abdominal, trunk, visceral fat mass, and fat free mass of young overweight males. Participants were randomly assigned to either exercise or control group. The intervention group received HIIE three times per week, 20 min per session, for 12 weeks. Aerobic power improved significantly ( P 0.001 ) by 15% for the exercising group. Exercisers compared to controls experienced significant weight loss of 1.5 kg ( P 0.005 ) and a significant reduction in total fat mass of 2 kg ( P 0.001 ). Abdominal and trunk adiposity was also significantly reduced in the exercising group by 0.1 kg ( P 0.05 ) and 1.5 kg ( P 0.001 ). Also the exercise group had a significant ( P 0.01 ) 17% reduction in visceral fat after 12 weeks of HIIE, whereas waist circumference was significantly decreased by week six ( P 0.001 ). Fat free mass was significantly increased ( P 0.05 ) in the exercising group by 0.4 kg for the leg and 0.7 kg for the trunk. No significant change ( P 0.05 ) occurred in levels of insulin, HOMA-IR, and blood lipids. Twelve weeks of HIIE resulted in significant reductions in total, abdominal, trunk, and visceral fat and significant increases in fat free mass and aerobic power.
Publisher: Elsevier BV
Date: 02-2013
DOI: 10.1016/J.IJPSYCHO.2012.11.013
Abstract: The purpose was to examine the effect of a 12-week exercise intervention on the cardiovascular and autonomic response of males to mental and physical challenge. Thirty four young overweight males were randomly assigned to either an exercise or control group. The exercise group completed a high-intensity intermittent exercise (HIIE) program three times per week for 12weeks. Cardiovascular response to the Stroop task was determined before and after the intervention by assessing heart rate (HR), stroke volume (SV), arterial stiffness, baroreflex sensitivity (BRS), and skeletal muscle blood flow. The exercise group improved their aerobic fitness levels by 17% and reduced their body weight by 1.6kg. Exercisers compared to controls experienced a significant reduction in HR (p<0.001) and a significant increase in SV (p<0.001) at rest and during Stroop and exercise. For exercisers, arterial stiffness significantly decreased at rest and during Stroop (p<0.01), whereas BRS was increased at rest and during Stroop (p<0.01). Forearm blood flow was significantly increased during the first two minutes of Stroop (p<0.05). HIIE induced significant cardiovascular and autonomic changes at rest and during mental and physical challenge after 12weeks of training.
Publisher: MDPI AG
Date: 19-08-2016
DOI: 10.3390/NU8080510
Publisher: Springer Science and Business Media LLC
Date: 29-10-2012
DOI: 10.1007/S10286-012-0179-1
Abstract: The effect of 12 weeks of high-intensity intermittent exercise (HIIE) on cardiac, vascular, and autonomic function of young males was examined. Thirty-eight young men with a BMI of 28.7 ± 3.1 kg m(-2) and age 24.9 ± 4.3 years were randomly assigned to either an HIIE or control group. The exercise group underwent HIIE three times per week, 20 min per session, for 12 weeks. Aerobic power and a range of cardiac, vascular, and autonomic measures were recorded before and after the exercise intervention. The exercise, compared to the control group, recorded a significant reduction in heart rate accompanied by an increase in stroke volume. For the exercise group forearm vasodilatory capacity was significantly enhanced, P < 0.05. Arterial stiffness, determined by pulse wave velocity and augmentation index, was also significantly improved, after the 12-week intervention. For the exercise group, heart period variability (low- and high-frequency power) and baroreceptor sensitivity were significantly increased. High-intensity intermittent exercise induced significant cardiac, vascular, and autonomic improvements after 12 weeks of training.
No related grants have been discovered for Mehrdad Heydari.