[Effects of different types of isokinetic contraction on hemodynamic parameters in men]

The purpose of this study was to compare the effect of different types of isokinetic contractions on hemodynamic parameters in men. Ten healthy male subjects [age, 26.1 +/- 3.4 years] in three separate sessions performed three exercise protocols included Concentric/Concentric [C/C], Eccentric/Eccentric [E/E] and Concentric/Eccentric [C/E] contractions [flexion and extension] in the knee joint. In each session subjects performed 4 sets, 10 repetitions, at the speed of 60 degree per second. Hemodynamic parameters [heart rate, systolic blood pressure, diastolic blood pressure, mean arterial blood pressure and rate of pressure product] were measured before exercise, immediately after exercise and after 30 min recovery. Data were analyzed using two- way repeated measures of ANOVA. Statistical analysis of data showed significant increases in heart rate, systolic blood pressure [P<0.001], mean arterial blood pressure [P=0.053] and rate of pressure product [P<0.001] during exercise and significant reductions in these parameters in recovery period. Rate of perceived exertion [RPE] was significantly different among the contraction protocols [F[2,34]=15.5] and post-hoc test showed that RPE was lower in E/E protocol than the other two protocols. Hemodynamic parameters change in response to different muscular contractions, though these changes are not related to contraction type

[Identification of essential oil components of Satureja sahendica Bornm in cultivated condition in Qazvin]

Satureja sahandica is a perennial plant of the family Lamiaceae and an aromatic plant of Iran flora with its essential oil components used in culinary, medicinal, and perfume industries. To identify components of S. sahandica planted in Qazvin condition. Aerial parts of S. sahandica were collected from a research farm [Qazvin Agriculture and Natural Resources Research Center] at flowering stage in 2007. The plant materials were subjected to hydro-distillation using a Clevenger-type apparatus for 3 h to produce essential oil and followed by GC and GC/MS for determination of chemical compositions. S. sahandica in cultivated condition gave oils with a yield of 2.12% on dry weight basis. Thirteen components were identified. The main constituents of the essential oil were thymol [38.3%], gamma gamma-terpinene [30.9%], and p-cymene [21.3%]. Essential oil of this plant in cultivated condition produced trace amounts of carvacrol. The results of this study indicated that the essential oil is rich in monoterpene phenols. Thymol, gamma- Terpinene, and p-Cymene were found to be the main components of the essential oil

[Identification of essential oil components of Thymus daenesis Celak. in field condition in Qazvin]

Thyme is a perennial plant from Lamiaceae family and an important medicinal plant worldwide. Thymus daenensis is distributed in Iran and used as a traditional medicine. Identification of Thymus daenesis components cultivated in Qazvin. Aerial parts of Thymus daenensis were collected from a research farm [Qazvin Agriculture and Natural Resources Research Center] at flowering stage in 1385. The essential oil was initially prepared by hydro-distillation technique followed by GC and GC/MS for determination of chemical compositions. The ratio of aromatic components to its dry weight in essential oil of Thymus daenensis cultivated in Qazvin was measured at 2.8 +/- 0.1% [w/w]. Twenty four components were identified. The main constituents of the essential oil were thymol [74.61%], p-cymene [4.6%], ?-terpinene [4.48%] carvacrol methyl ether [4.27%], 1.8 cineol [1.64%], borneol [1.61%], and carvacerol [1.40%]. The results of this study showed that the Thymus daenensis essential oil is rich in monoterpene phenols, especially thymol

[ study on chemical composition of Ajowan [Trachyspermum ammi] essential oil produced in Qazvin]

Ajowan is one of the medicinal plant cultivated in Iran. The Ajowan essential oil is mostly used in food, health and pharmaceutical industries. To determinate the chemical composition of Ajowan essential oil cultivated in Qazvin. Twelve samples of Ajowan seeds were collected from a research farm [Qazvin Agriculture and natural resources research center] in 1381. The essential oil was obtained byhydro-distillation technique and further analyzed by GC and GC/MS for determination of chemical compositions. The content of essential oil in different samples were ranging between 3.1% to3.5%. Nine chemical constituents were indentified. Themol, e-terpinene and p-cemene were the major constituents of oil. Ajowan essential oil produced in Qazvin was mainly composed of thymol [40-45%]