scholarly journals Efecto agudo del orden de ejecución de ejercicios contra resistencia sobre la presión arterial en jóvenes estudiantes normotensos (Acute effect of the order of execution of resistance exercises on blood pressure in normotensive young students)

Retos ◽  
2016 ◽  
pp. 68-71
Author(s):  
Engell Quesada Valle ◽  
Andrea Solera Herrera

Objetivo: El objetivo de la presente investigación fue determinar el efecto del orden de ejecución de ejercicios contra resistencia (CR) sobre la presión arterial (PA) en reposo de jóvenes estudiantes normotensos. Método: Para el estudio se contó con la participación de 14 hombres sanos, familiarizados con el ejercicio de contra resistencia con edad promedio de 23.3 ± 1.4 años. Las condiciones experimentales fueron realizadas en orden aleatorizado, en diferentes días de trabajo y consistieron en: (1) iniciar el ejercicio CR con grupo muscular grande y terminar con pequeños (G-Peq), (2) iniciar con grupos musculares pequeño y finalizar con grandes (P-Gde) y (3), condición control .La rutina de ejercicio constó de ocho ejercicios  los cuales se trabajaron al 60% de 1 repetición máxima (RM), se realizaron 3 series de 10 repeticiones para cada ejercicio , las mediciones de presiones arteriales se tomaron antes del ejercicio, al terminar el  ejercicio y cada 10 minutos luego de terminar la rutina durante 1 hora. Resultados: En la PA sistólica se encontraron disminuciones importantes durante 30 min tanto de la condición G-Peq como de la P-Gde en comparación con el grupo control (p≤ 0.001), no obstante, la magnitud de la disminución fue mayor posterior a G-Peq (6-11 mm Hg) en comparación con P-Gde (4-10 mm Hg). Para la PA diastólica no se encontró interacción significativa (p=0.39). Conclusión. Existe efecto hipotensor posterior a ambas rutinas, sin embargo, se observó una disminución mayor de la PA sistólica al finalizar la rutina con grupos musculares grandes. Abstract. Objective: The aim of this study was to determine the effect of the order of execution of resistance training exercises (RT) on blood pressure (BP) in normotensive young students at rest. Method: 14 healthy men (mean age of 23.3 ± 1.4 years) who were familiar with resistance training participated in this study. The order of participation for the experimental conditions was randomized; the different conditions consisted in: (1) RT starting with large muscles groups and finishing with small ones (L-S), (2) RT starting with small muscles groups and ending with large ones (S-L) and (3) the control condition. RT routine consisted of eight exercises with intensity of 60% of one repetition maximum (RM). The participants performed 3 sets of 10 repetitions for each exercise. Blood pressure measurements were taken before exercise, at the end of the year, and every 10 minutes after finishing the routine for 1 hour. Results: systolic BP reduction was found for 30 min both in L-S and S-L compared with the control group (p ≤ 0.001), although the magnitude of the decrease was higher after L-S (6-11 mmHg) compared with S-L (4-10 mmHg). For diastolic BP no significant interaction was found (p=0.39). Conclusion There exists a hypotensive effect after both routines; however, there was a greater decrease of systolic BP at the end of the routine with large muscle groups.

2021 ◽  
Vol 1 (4) ◽  
pp. 50-56
Author(s):  
Ana Luísa Freitas Siqueira ◽  
Gabriela Souza Faria ◽  
Pedro De Oliveira Neto ◽  
Maria Paula Fabrício de Andrade ◽  
Bruna Pereira Molina Cruz ◽  
...  

Physical training is used in the control of arterial hypertension (AH), especially in patients with higher levels of blood pressure (BP). However, there are still few studies on the effects of physical training on AH in less advanced stages of the disease. The aim of the present study was to assess the immediate and late acute effects of continuous moderate physical training (CMT) and high intensity interval training (HIIT) in patients with mild AH, and to assess which training method induces a greater hypotensive effect. A female patient, 43 years old, sedentary, diagnosed with mild AH (stage 1), taking Losartana 50 mg twice a day was studied. She underwent one CMT and one HIIT session, one week apart. BP measurements were taken before and after each session, as well as 24 hours before and after the sessions. After the physical training sessions, we observed a drop in the patient's BP that lasted up to 60 minutes, and a reduction in blood pressure levels on the day after the training. We conclude that both training modalities were efficient in reducing the BP of the patient with mild acute immediate and delayed hypertension.


1984 ◽  
Vol 247 (4) ◽  
pp. R655-R662
Author(s):  
S. Koyama

The time course of changes in mean blood pressure (MBP), heart rate (HR), and renal blood flow (RBF) in a control group of anesthetized dogs given only endotoxin (1 mg/kg iv) was compared with groups pretreated with alpha-antagonists either intravenously or intracisternally (ic). The decreases in MBP and RBF in the control group were abolished by intracisternal prazosin (0.1 mg/kg ic). MBP response to endotoxin after intravenous prazosin did not differ from that of the control group; however, the endotoxin-induced decrease in RBF after intravenous prazosin was significantly greater than that in the control group. HR responses to endotoxin were not altered by either intracisternal or intravenous prazosin. MBP and RBF responses to endotoxin after intravenous or intracisternal yohimbine (0.5 mg/kg iv or ic) did not differ from the control responses. However, significant differences occurred in the time course of changes in HR only when yohimbine was administered intracisternally. These observations suggest that the hypotensive effect and reduction of RBF due to endotoxin may be mediated by alpha 1-adrenoceptors at least in the central nervous system and that of HR response may be mediated alpha 2-adrenoceptors.


2005 ◽  
Vol 98 (6) ◽  
pp. 2287-2291 ◽  
Author(s):  
Allison E. DeVan ◽  
Maria M. Anton ◽  
Jill N. Cook ◽  
Daria B. Neidre ◽  
Miriam Y. Cortez-Cooper ◽  
...  

Decreased central arterial compliance is an emerging risk factor for cardiovascular disease. Resistance training is associated with reductions in the elastic properties of central arteries. Currently, it is not known whether this reduction is from one bout of resistance exercise or from an adaptation to multiple bouts of resistance training. Sixteen healthy sedentary or recreationally active adults (11 men and 5 women, age 27 ± 1 yr) were studied under parallel experimental conditions on 2 separate days. The order of experiments was randomized between resistance exercise (9 resistance exercises at 75% of 1 repetition maximum) and sham control (seated rest in the exercise room). Baseline hemodynamic values were not different between the two experimental conditions. Carotid arterial compliance (via simultaneous B-mode ultrasound and applanation tonometry) decreased and β-stiffness index increased ( P < 0.01) immediately and 30 min after resistance exercise. Immediately after resistance exercise, carotid systolic blood pressure increased ( P < 0.01), although no changes were observed in brachial systolic blood pressure at any time points. These measures returned to baseline values within 60 min after the completion of resistance exercise. No significant changes in these variables were observed during the sham control condition. These results indicate that one bout of resistance exercise acutely decreases central arterial compliance, but this effect is sustained for <60 min after the completion of resistance exercise.


Thrita ◽  
2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Ameneh Balavi ◽  
Mohsen Ghanbarzade

Background: Airways resistance and broncho-spasm due to exercise are very common. Factors such as exercise, temperature, humidity, air pollution, and disease affect this complication. This study was performed due to the increase in physical disability of muscle weakness in patients with MS and the lack of information on the effect of different strength training exercises on air resistance. Objectives: The current study aimed to investigate the effect of resistance training with different intensities on airway resistance indices of women with MS. Methods: Thirty six women with Multiple sclerosis who had a disability criterion ranged from 1 to 4 (based on Krutzke’s disability scale) were sampled using the targeted and purposive sampling methods. They were selected based on the initial health conditions and then were randomly assigned to each of the three groups (each consisting of 12 participants). The first group received resistance training for 12 weeks, three sessions a week with intensity 60% 1RM, and the second group received resistance training for 12 weeks, three sessions a week with intensity 80% 1RM. Those in the control group didn’t have an exercise program. Results: Airway resistance indices were measured both before and after 12 weeks of resistance training, airway resistance indices in both groups was significantly decreased, and these changes were significant in both experimental groups as compared to the control group. Conclusions: According to the findings, in addition to improving balance, fatigue, and muscle endurance, high-intensity resistance training had similar effects to moderate-intensity exercise on pulmonary function indices in women with MS.


2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Brandon Stuwart Shaw ◽  
Stacey Turner ◽  
Ina Shaw

Background: Cardiovascular disease (CVD) exemplifies a major medical problem as it is the most considerable cause of morbidity and mortality. While sport conditioning specialists understand and differentiate the different benefits of resistance training (RT) subtypes on athletic performance, this distinction is less clear for health professionals when designing CVD risk reduction programs. Objectives: This study attempted to investigate and compare the effects of hypertrophy and muscular endurance RT on CVD risk in sedentary males. Methods: Sedentary male smokers were randomly assigned to either an eight-week hypertrophy RT group (HTG) (n = 15), muscular endurance RT groups (METG) (n = 15), or a non-exercising control group (CON) (n = 15) to assess their impact on smoking, blood pressure, cholesterol, and cardiorespiratory fitness (VO2max) variables associated with the four most prominent CVD risk factors. Data were analyzed using SPSS-25 software using a paired sample t-test and ANOVA. Results: Significant (P ≤ 0.05) improvements were found in three of the 15 measured variables in the HTG (resting mean arterial pressure (RMAP) (P = 0.024); total cholesterol (TC): HDL-C ratio (P = 0.009), and HDL-C: low-density lipoprotein cholesterol (LDL-C) ratio (P = 0.038), with a deleterious decrease in high-density lipoprotein cholesterol (HDL-C) (P = 0.027). In turn, significant improvements were found in the METG in 10 of the 15 measured variables, namely; cigarettes smoked per day (P = 0.037), resting systolic blood pressure (RSBP) (P = 0.002), resting diastolic blood pressure (RDBP) (P = 0.006), RMAP (P = 0.000), TC (P = 0.010), triglycerides (TG) (P = 0.010), LDL-C (P = 0.007), HDL-C: LDL-C (P = 0.018), non-HDL-C (n-HDL-C) (P = 0.010), and VO2max (P = 0.001), and a deleterious decrease in HDL-C (P = 0.026). Conclusions: While the oversimplification of RT design for CVD reduction has resulted in cardio-centric CVD training programs, this study demonstrates that some subtypes of RT (i.e. muscular endurance training) may prove more useful than others in reducing multiple CVD risk factors simultaneously.


2016 ◽  
Vol 5 (2) ◽  
Author(s):  
M.Yoga Sefia Nurindra ◽  
Rahmatina B.Herman ◽  
Yenita Yenita

AbstrakHipertensi dapat menyebabkan gangguan jantung yang serius sampai kematian. Handgrip isometric exercise adalah latihan yang melibatkan kontraksi otot lengan bawah dan tangan dengan melakukan cengkraman menggunakan handgrip dynamometer. Tujuan penelitian ini adalah mengetahui perubahan tekanan darah sewaktu melakukan handgrip isometric exercise. Penelitian ini merupakan penelitian eksperimental dengan menggunakan desain randomized crossover study yang melibatkan 24 orang subjek laki-laki dengan usia 20,7 ± 0,6 tahun dan BMI 21,8 ± 2,1 Kg/m2. Hasil penelitian menunjukkan peningkatan tekanan darah baik sistolik maupun diastolik yang signifikan sewaktu melakukan handgrip isometric exercise. Tekanan darah sistolik dari 115,2 ± 5,0 mmHg menjadi 135,0± 6,5 mmHg (p<0,05) dan diastolik 76,3± 5,0 mmHg menjadi 98,3 ± 8,7 mmHg (p<0,05). Pada kontrol terlihat penurunan tekanan darah sistolik yang signifikan dari 113,8 ± 6,1 mmHg menjadi 111,5 ± 7,1 mmHg (p<0,05) dan diastolik penurunan tidak signifikan dari 75,0 ± 5,9 mmHg menjadi 72,9 ± 6,2 mmHg (p>0,05).  Pada penelitian ini disimpulkan bahwa tekanan darah meningkat sewaktu handgrip isometric exercise.Kata kunci: hipertensi, handgrip isometric exercise, tekanan darah AbstractHypertension can cause a serious heart problem and mortality. Handgrip isometric exercise is an activity involving contraction of forearm and hand muscle of one arm by pressing handgrip dynamometer. The objective  of  this study was to investigated blood pressure during handgrip isometric exercise. This research was an experimental study with randomized crossover design that involved 24 male subjects, age of 20,7 ± 0,6 years old and BMI 21,8 ± 2,1 Kg/m2. The results demonstrated significant increases in systolic and diastolic blood pressure during handgrip isometric exercise. Systolic blood pressure significantly increased from 115,2 ± 5,0 mmHg to 135,0 ± 6,5 mmHg (p<0,05) and diastolic from 76,3 ± 5,0 mmHg to 98,3 ± 8,7 mmHg (p<0,05). In control group, systolic blood pressure significantly decreases from 113,8 ± 6,1 mmHg to 111,5 ± 7,1 mmHg (p<0,05) and unsignificant decreased in diastolic blood pressure from 75,0 ± 5,9 mmHg to 72,9 ± 6,2 mmHg (p>0,05). It can be concluded that blood pressure increased during handgrip isometric exercise.Keywords: hypertension, handgrip isometric exercise, blood pressure


Proceedings ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 35
Author(s):  
Stergiou ◽  
Chryssanthopoulos ◽  
Mantas ◽  
Tafrali ◽  
Kavida ◽  
...  

Aim: Aerobic, resistance, or isometric exercise has been shown to reduce blood pressure (BP) in normotensive and hypertensive individuals. The aim of this study was to examine the acute effect of combining resistance and isometric exercise and the training effect of combining all 3 types (aerobic, resistance and isometric exercise) in hypertensive patients. Material & Method: Fourteen adults, six females and eight males (age, 55 ± 11 yrs; BMI, 31.0 ± 6.0 kg.m2; body fat, 34 ± 14 %; waist circumference, 102 ± 18 cm; mean ± SD), with stage 1 and 2 hypertension performed a combined resistance and isometric exercise bout to examine the acute effect of exercise. Afterwards, volunteers were randomly divided into two groups of 7 participants each. One group performed 3 exercise sessions per week for 8 weeks (T). Training consisted of aerobic (45 min at 60–80% of maximal heart rate), resistance (3 sets of 10–15 repetitions at 60–80% of 1RM) and isometric (4 sets at 30% maximum handgrip strength for 2 min) exercise. The other group acted as a control group (C) and performed only isometric exercise at 5% of maximum handgrip strength for 2 min. Results: After the resistance-isometric exercise bout the average systolic (SBP), diastolic (DBP) and mean arterial blood pressure (MBP) over one hour post-exercise were reduced by 11 ± 2 mm Hg, 6 ± 1 mm Hg and 8 ± 1 mm Hg, respectively, compared to pre-exercise levels (p < 0.001). After 8 weeks of training in the T group SBP, DBP and MBP were reduced by 16 ± 4 mm Hg, 10 ± 3 mm Hg and 12 ± 3 mm Hg, respectively, compared to pre-training (p < 0.05). These values were higher (p < 0.05) than the corresponding values in the C group, where no changes were observed (SBP, 2 ± 1 mm Hg; DBP, 0 ± 1 mm Hg; MBP, 1 ± 1 mm Hg; p > 0.05). Conclusions: One bout of resistance-isometric exercise acutely reduced SBP, DBP, and MBP over one hour post-exercise, while 8 weeks of training that combined aerobic, resistance, and isometric exercise also reduced SBP, DBP, and MBP in adult patients with stage 1 and 2 hypertension.


2019 ◽  
Vol 15 (7) ◽  
pp. 712-717
Author(s):  
Reza Mohebbati ◽  
Maryam Rahimi ◽  
Kosar Bavarsad ◽  
Farimah Beheshti ◽  
Abolfazl KhajaviRad ◽  
...  

Objective: Ziziphus jujuba (Z.J) is a medicinal plant with several properties such as antioxidant, antibacterial, hypnotic and wound healing activity. It also has lowering blood pressure effect and people use it to treat hypertension. In the present study, the effect of hydroalcoholic extract of Z.J on cardiovascular parameters in the normotensive rats was investigated. Methods: Animal groups include: 1) Sham, only cannulation of artery 2) saline, received saline for four weeks 3-5) Z.J groups (100, 200 and 400 mg/kg) that treated with Z.J via gavage for four weeks. In the experiment day (28th Day) femoral artery of all rats cannulated and Systolic Blood Pressure (SBP), Mean Atrial Pressure (MAP) and Heart Rate (HR) recorded by a power lab system. The weight of animal in all groups also was recorded in the beginning and the last day of experiment. Results: There was no significant difference in HR, SBP and MAP parameters between sham and control groups. The SBP and MAP in higher doses of Z.J (200 and 400 mg) significantly decreased compared to control group. The HR only in dose 200 mg of Z.J significantly decreased than the control group. Conclusion: The results of present study show that hydroalcoholic extract of Z.J has an inhibitory effect on basal cardiovascular parameters and its best effects have been shown in dose 200 mg/kg.


Author(s):  
Ewertton de Souza Bezerra ◽  
Brad J. Schoenfeld ◽  
Lucas Bet da Rosa Orssatto ◽  
Jerry L. Mayhew ◽  
Alex Silva Ribeiro

Abstract Manipulation of resistance training variables has been shown to have a substantial effect on muscular adaptations. A major variable in this process is exercise selection. In addition to the effectiveness of a given exercise to recruit the target muscle groups, safety considerations and individual comfort during execution of a lift should be considered. The correct biomechanics of the chosen exercise will assist in promoting desired muscle adaptations, while proper safety procedures will reduce risk of injury. Lifting comfort will facilitate enjoyment and foster adherence to the program. Therefore, the purpose of this paper was to offer guidelines for selection of resistance training exercises based on the Efficiency, Safety, and Comfort Analysis Method (ESCAM).


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