Effect of the execution order from concurrent exercise session on blood pressure responses in hypertensive older men

Abstract Aim: To compare blood pressure (BP) responses among the different orders of execution of concurrent exercise (CE) sessions in controlled hypertensive older men. Methods: Fifteen older men (64 ± 5 years) participated in three randomized crossover sessions: control session (C), CE in aerobic-resistance order (AR), and resistance-aerobic order (RA). The CE was performed for 1 h, in which 30 min were for the resistance exercise with 5 exercises at 70% of 1RM and 30 min for the aerobic exercise on a treadmill with intensity corresponding to the first ventilatory threshold. Clinical systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean blood pressure (MBP) were measured at rest and over 2 h and 24 h after the session. For analysis, the Generalized Estimating Equations (GEE) test was used with Bonferroni's complimentary test (α = 0.05). Results: The SBP decreased by 30 min after AR, while after RA we obtained reductions during 1 h after a session concerning rest. Between sessions, we found lower values in both CE compared to the C at 30 min, 45 min, and 90 min. In the RA there was a lower pressure in relation to the C at minute 60. The DBP reduced 30 min after the AR regarding the pre-session, however with no difference between sessions. The MBP was lower in relation to 30 min rest after AR. Among sessions, a pressure drop was observed in the AR compared to the C at 30 min and 45 min. Conclusion: We can conclude that the CE was effective in generating post-exercise hypotension regardless of the order in controlled hypertensive older men.

Effects of physical activity and exercise on metabolic syndrome / 中国组织工程研究

BACKGROUND: Metabolic syndrome appeared at older and lower age. Increasing physical activity and active movement can effectively improve insulin sensitivity in patients with metabolic syndrome, regulate lipid and glucose metabolisms, decrease blood pressure and reduce the incidence of metabolic syndrome. OBJECTIVE: To comprehensively review the effect of physical activity and exercise intervention on metabolic syndrome, and to further reveal the positive benefits of physical activity, aerobic exercise and resistance movement to young children and middle-aged and elderly people, so as to provide theoretical and practical reference for effective prevention, mitigation and treatment of metabolic syndrome. METHODS: PubMed, CNKI, and ElsevierSDOL databases were used to search relevant articles with the keywords of “metabolic syndrome, physical activity, exercise” in Chinese and English, respectively. The pathogenesis of metabolic syndrome and the influence of physical activity and exercise on metabolic syndrome were summarized to confirm the included studies eligible for the objectives. RESULTS AND CONCLUSION: (1) Adequate physical activity is an independent protective factor of metabolic syndrome. A healthy lifestyle, such as less sitting and hyperactivity, changing travel mode and increasing housework, can effectively accelerate energy metabolism and improve insulin sensitivity in all groups, reduce the prevalence of metabolic syndrome and each component of the disease. (2) Regular exercise has a significantly positive effect on the prevention and treatment of metabolic syndrome. Aerobic exercise and resistance exercise can reduce the body fat content and insulin resistance and other risk factors. Resistance exercise can increase skeletal muscle content, increase basal metabolic rate and insulin sensitivity, especially control blood sugar. Only aerobic exercise can correct the inflammatory reaction of metabolic syndrome, and has more advantages in reducing body fat and lowering blood pressure. (3) Obesity in children and adolescents is closely related to metabolic syndrome. Physical activity and exercise play a significant role in the prevention and improvement of metabolic syndrome, while the improvement of metabolic syndrome can control obesity in children and adolescents. The survival rate of middle-aged and elderly patients with metabolic syndrome decreased, the risk of cardiovascular and cerebrovascular diseases increased, and the mortality rate increased. Lifestyle change and regular exercise are important measures to prevent and cure the occurrence of metabolic syndrome and cardiovascular and cerebrovascular diseases in the middle-aged and elderly.

Diferentes ordens do exercício combinado: efeitos agudos de 24 horas sobre a pressão arterial de atletas / Different order of combined exercises: acute effects on 24-hour blood pressure in young men

Resumo Verificar as respostas de 24 horas da pressão arterial (PA) em jovens adultos após diferentes ordens de execução do exercício aeróbio (EA) e resistido (ER). Participarão do estudo dez homens saudáveis (22,6 ± 70,3; 3.7 anos ± 5,8 kg; 175,9 ± 5,8 centímetros). O estudo consistiu em quatro sessões experimentais realizadas de forma aleatórias: EA + ER (AR); ER + EA (RA); Circuito Concorrente (CC) e controle (CO). Todas as sessões tiveram a mesma duração e intensidade, EA: 15 min a 90% do limar de lactato mínimo indireto; ER: 15min a 90% de 12 RM com 12 repetições (seis exercícios). A PA foi medida antes, durante e 1 h (Microlife® BP3A1C) após a realização de exercícios em laboratório e 23 h durante as atividades diárias, utilizando a medição da pressão arterial ambulatorial (Dyna-MAPA®). A pressão arterial sistólica (PAS) no período de 24 horas e de vigília, e a diastólica (PAD), no período de 24 horas, o sono e de vigília, e a média da PA no período de vigília foram menores na sessão RA em comparação com a sessão CO apresentando um tamanho do efeito de moderado a alto (d de Cohen = -0,46 / -0,78). A área sob a curva da PAD na sessão AR foi menor do que na sessão CO no período de vigília (1004 ± 82 vs. 1065 ± 107; p < 0,047) e 24 h (1456 ± 103 vs 1528 ± 132 < 0,026) períodos. A sessão RA apresentou maiores pontos de redução da PA durante 24 horas em relação ao outros protocolos.(AU)

Abstract To verify 24-hour blood pressure (BP) responses in young adults after different orders of aerobic (AE) and resistance exercises (RE). Anaerobic threshold (AT) and strength (12 RM) were evaluated in ten healthy men (22.6 ± 3.7yrs; 70.3 ± 5.8 kg; 175.9 ± 5.8 cm). Four experimental sessions: Aerobic + Resistance (AR); Resistance + Aerobic (RA); Concurrent circuit (CC) and control day (CO) were randomly performed. All sessions had the same duration and intensity, AE: 15 min at 90% of AT; ER: 15 min at 90% of 12 RM with 12 reps (6 exercises). BP was measured before, during and 1 h (Microlife® BP3A1C) after performing exercises in the laboratory and 23 h during daily activities using ambulatory blood pressure measurement (Dyna-MAPA®). Systolic BP (SBP) in 24 h and awake periods, and Diastolic BP (DBP) in 24 h, sleep and awake periods, and Mean BP in awake period were lower in RA session compared with CO session with moderate to high effect size (d de Cohen = -0.46/-0.78). The DBP area under the curve in RA was lower than CO in awake (1004 ± 82 vs. 1065 ± 107; p < 0.047) and 24 h (1456 ± 103 vs. 1528 ± 132; p < 0.026) periods. The SBP delta were lower in RA at 0-1 h (-12.0 mmHg), 2-3h (-16.5 mmHg), 6-7 h (-19.4 mmHg) and 10-11 h (-13.0 mmHg) compared with CO; lower in AR at 4-5h (-19.2 mmHg) and 6-7 h (-20.2 mmHg) compared with CO; and lower in CC at 2-3h (-15.6 mmHg) and 6-7 h (-17.5 mmHg) compared with CO. The DBP was lower at 4-5 h (-14.0 mmHg) in RA compared with CO. After performing RA exercises, there were greater decreases in BP during 24 h in young adults.(AU)

The period of the day affects the twenty-four hour blood pressure response to an acute combined exercise session in brazilian jiu jitsu athletes / O período do dia afeta a resposta de pressão arterial de 24 horas para uma sessão aguda de exercício combinado no brasileiro de jiu jitsu atletas / La hora del día afecta la respuesta de la presión arterial de 12: 0 am para una sesión de ejercicio combinado aguda en deportistas de Jiu-Jitsu brasileño

The purpose of this study was to compare the effect of a combined exercise session performed at different periods of the day on the 24h blood pressure (BP) response. Anaerobic threshold (AT) and 12 repetition maximum (12RM) tests were evaluated in nine Brazilian jiu-jitsu athletes (male) (22±3.7 y; 176±5.0 cm; 73.4±9.7 kg; 6.8±2.1 % body fat). Four experimental sessions were performed: resistance exercise followed by aerobic exercise [Morning (MornS) and Afternoon (AfternS)] and Control (C) [Morning and Afternoon]. The morning sessions were conducted at 09:00 a.m. and the afternoon sessions were conducted at 3:00 p.m. The resistance exercise consisted of three sets at 90% of a 12RM for six resistance exercises. The aerobic exercise consisted of 15min at 90% of the AT. Blood pressure (BP) was measured before, during and 1h (Microlife(r) BP3A1C) after the performance of exercises in laboratory, and then during daily activities for the succeeding 23h by ambulatory BP monitoring (Dyna-MAPA(r)). Analysis of the area under the curve (AUC) indicated significant reductions in blood pressure parameters at various time points during the 24h monitoring period. For systolic BP (SBP), significantly lower values were shown following the morning session versus the control (MornS: 1756.2±100.8 vs. C: 1818.2±84.3 mmHg*15h; p < .05) and total-24h (MornS: 2695.8±143.3 vs. C: 2784.1±143.2 mmHg*24h; p < .05). The total-24h mean BP (MAP) was also significantly lower following the morning session versus the control (MornS: 2015.7±121.2 vs. C: 2087.3±153.8 mmHg*24h; p < .05). There were significant differences in the sleeping AUC of SBP (AfternS: 883.6±27.0 vs. C: 965.2±67.9 mmHg*9h; p < .05), diastolic BP (DBP) (AfternS: 481.4±30.9 vs. MornS: 552.9±34.2 and C: 562.1±52.3 mmHg*9h; p < .01) and MBP (AfternS: 651.9±22.4 vs. MornS: 708.7±43.1 and C: 726.9±64.7 mmHg*9h; p < .01)...

O objetivo deste estudo foi comparar o efeito de uma sessão combinada de exercício realizada em diferentes períodos do dia, sobre as respostas de pressão arterial (PA) durante 24h. Limiar anaeróbio (LA) e teste de 12 repetições máximas (12RM) foram avaliados em nove atletas (masculinos) de jiu-jitsu (22,0±3,7 anos; 176,0±5,0 cm; 73,4±9,7 kg; 6,8±2,1 %gordura). Quatro sessões experimentais foram realizadas: exercício resistido + exercício aeróbio [manhã (ManhaE) e tarde (TardeE)] e sessão controle (C) [manhã e tarde]. A sessão da manhã foi realizada 09:00h e a sessão da tarde foi realizada ás 15:00h. O exercício resistido consistiu em três séries a 90% de 12RM em seis exercícios. O exercício aeróbio consistiu em 15min a 90% do LA. PA foi mensurada antes, durante e 1h (Microlife(r) BP3A1C) após a realização dos exercícios em laboratório e 23h durante as atividades diárias com a monitorização ambulatorial da PA (Dyna-MAPA(r)). Ao analisar os valores da área abaixo da curva (AAC) indicaram reduções significativas nos parâmetros de pressão arterial em vários pontos de tempo durante o período de acompanhamento de 24 horas. Para a PA sistólica (PAS), observaram-se valores significativamente mais baixos após a sessão realizada pela manha em comparação a sessão controle na vigília (ManhaE: 1756,2±100,8 vs. C: 1818,2±84,3 mmHg*15h; p< 0,05) e 24h-total (ManhaE: 2695,8±143,3 vs. C: 2784,1±143,2 mmHg*24h; p< 0,05). Nas 24h-total também ocorreu diferença na PA média (PAM) (ManhaE: 2015,7±121,2 vs. C: 2087,3±153,8 mmHg*24h; p< 0,05). Houve uma diferença significativa na AAC no período de sono na PAS (TardeE: 883,6±27,0 vs. C: 965,2±67,9 mmHg*9h; p < 0,05), PA diastólica (PAD) (TardeE: 481,4±30,9 vs. ManhaE: 552,9±34,2 e C: 562,1±52,3 mmHg*9h; p< 0,01) e PAM (TardeE: 651,9±22,4 vs. ManhaE: 708,7±43,1 e C: 726,9±64,7 mmHg*9h; p< 0,01)...

El objetivo de estudio fue comparar el efecto de una sesión combinada de ejercicio realizada en diferentes períodos del día, sobre las respuestas de presión arterial (PA) durante 24h. Umbral anaeróbico (Uan) y test de 12 repeticiones máximas (12RM). Fueron evaluados nueve atletas (hombres) de jiu-jitsu (22,0±3,7 años; 176,0±5,0 cm; 73,4±9,7 kg; 6,8±2,1% grasa). Cuatro sesiones de test fueron realizadas: ejercicio resistido + ejercicio aeróbico [mañana (MañaE) y tarde (tardE)] y sesión control (C) [mañana y tarde]. La sesión matinal ocurrió las 9.00 y la sesión vespertina ocurrió las 15.00. El ejercicios resistidos consistió en tres series a 90% de 12 RM em seis ejercicios. El ejercicio aeróbico consistió en 15 minutos a 90% de LA. La presión arterial (PA) fue medida antes, durante y 1 hora tras la realización de los ejercicios en laboratorio (Microlife(r) BP3A1C) y 23 horas durante las actividades diarias con el monitoreo ambulatorio de la PA (Dyna-MAPA(r)). Mediante el análisis del área bajo la curva (ABC) mostraron reducciones significativas en los parámetros de PA en varios puntos de tiempo durante el período de seguimiento de 24 horas. Para la PA sistólica (PAS), hubo valores significativamente más bajos después de las sesiones de vigilia (MañaE: 1756,2±100,8 vs. C: 1818,2±84,3 mmHg*15h; p< 0,05) y 24hs-total (MañaE: 2695,8±143,3 vs. C: 2784,1±143,2 mmHg*24h; p< 0,05). En las 24hs-total también ocurrió diferencia en la PA media (PAM) (MañaE: 2015,7±121,2 vs. C: 2087,3±153,8 mmHg*24h; p< 0,05). En durante el sueño ocurrieron alteraciones en el ABC de la PA PAS (tardE: 883,6±27,0 vs. C: 965,2±67,9 mmHg*9h; p< 0,05), PA diastólica (PAD) (tardE: 481,4±30,9 vs. MañaE: 552,9±34,2 y C: 562,1±52,3 mmHg*9h; p< 0,01) y PA media (tardE: 651,9±22,4 vs. RAM: 708,7±43,1 y C: 726,9±64,7 mmHg*9h; p< 0,01)...

THE EFFECT OF COMBINED EXERCISE TRAINING ON CAROTID ARTERY STRUCTURE AND FUNCTION, AND VASCULAR ENDOTHELIAL GROWTH FACTOR (VEGF) IN OBESE OLDER WOMEN / 体力科学

The purpose of this study was to examine the influence of 12-week combined exercise program on carotid artery structure and function, and vascular endothelial growth factor (VEGF) in obese older women. All subjects were sixty years or older (66.90±4.2 years), performed the combined exercise training during 12-week consisting of aerobic exercise, band exercise, and yoga exercise for 70 minutes 3 times a week under the supervision of exercise specialist. Despite no statistically significant change in control group, percent body fat mass (3.26 %, p<.01), systolic blood pressure (6.2 mmHg, p<.05), diastolic blood pressure (5.6 mmHg, p<.001), and 10 m maximal walking time (0.56 sec, p<.05), TC (20.5 mg/dl, p<.05), and LDL-C (22.16 mg/dl, p<.05) were significantly decreased respectively after 12-week combined exercise in exercise group. In addition, sit-and-reach (3.6 cm, p<.01), oxygen uptake per weight (3.27 ml/kg/min, p<.05), VEGF (17.85 pg/dl, p<.001), and carotid artery LD (0.4 cm, p<.01), PFV (10.06 cm/sec, p<.05), EFV (6.04 cm/sec, p<.05) were significantly increased in the exercise group than in the control group. The VEGF had the significant correlation with LD (r=.389, p<.01), PFV (r=.427, p<.01), EFV (r=.264, p<.05). In conclusion, 12-week combined exercise program is effective to improve and/or physical function and body composition. And also, exercise can improve serum lipid metabolism, VEGF regulation, and carotid artery function and structure.

THE EFFECTS OF COMBINED EXERCISE ON CARDIAC FUNCTION AND ADIPOCYTOKINE CONCENTRATION ACCORDING TO ACE GENOTYPE IN ABDOMINAL OBESE MIDDLE AGED MEN / 体力科学

The purpose of this study was to investigate the effects of combined exercise on visceral fat, cardiac function, adipocytokine, and NT-pro BNP concentration according to angiotensin-converting enzyme(ACE) genotype in obese middle aged men. Fifty three obese men (II type: 18, ID type: 20, DD type: 15), ratio of visceral and subcutaneous were over 0.4, were enrolled in the study. The combined exercise program included stretching, resistance training, aerobic exercise, and yoga. The exercise was conducted for 60 minutes, 4 times a week for 12 week period. ACE genotype was determined using a polymerase chain reaction (PCR), and the genetic subtype was classified in three patterns e.g. II, ID, DD. As a results, body weight, BMI, and WHR significantly decreased after 12 weeks of combined exercise in ID type and DD type. Body fat(%), visceral fat and V/S significantly decreased after 12 weeks in DD type. HDL-C and LDL-C significantly improved in II, ID and DD type. Cardiac structure decreased in all genotype and cardiac function increased in DD type. IL-6 and NT-pro BNP, the risk factors of cardiovascular disease, were significantly decreased in DD type, after 12 weeks. Therefore, exercises have shown to be most effective in type DD which is also considered as the risk of cardiovascular diseases. Among all the ACE genotype, DD type requires the most exercise.

THE EFFECTS OF COMBINED EXERCISE ON FUNCTIONAL FITNESS AND RISK FACTORS OF METABOLIC SYNDROME IN THE OLDER WOMEN / 体力科学

The purpose of this study was to investigate the changes in functional fitness and risk factors for metabolic syndrome after 12 weeks of combined exercise in women of advanced age. Subjects consisted of twenty women of advanced age with metabolic syndrome (Control, 10 ; Combined, 10) whose age was over 75. The combined exercise program included stretching for 20 minutes, aerobic exercise for 30 minutes, resistance training for 15 minutes, and Asana yoga for 15 minutes. Subjects exercised 4 times a week for 12 weeks. We found that LBM (lean body mass) was significantly increased and visceral fat was significantly decreased after 12 weeks. Also, self-reliance fitness and the risk factors for metabolic syndrome were significantly improved after 12 weeks in the combined exercise group. Therefore, it appears that combined exercise plays a positive role in body composition and fitness and reduces the risk factors for metabolic syndrome in women of advanced age.

EFFECTS OF COMBLNED EXERCLSE ON β-AMYLOLD AND DHEAs IN ELDERLY WOMEN / 体力科学

The purpose of this study was to investigate the changes in health related fitness, β-amyloid and dehydroepiandrosterone sulfate (DHEAs) concentration, in elderly women after 12 weeks of combined exercise. Subjects consisted of fourteen elderly women (control : 7, exercise : 7) whose ages were over 75 yrs and mini mental status examination (MMSE) scores were more than 24. The combined exercise program included stretching for 10 minutes, 30 minutes of low impact aerobic exercise at an intensity above 40∼59% of HRR during 1∼6 weeks and 60∼84% of HRR during 7∼12 weeks, and 20 minutes of resistance exercise composed of muscle strengthening and posture correction. The program was conducted 3 times a week for 12 weeks. We found that peakVO₂ and peakVO₂/weight significantly (<i>P</i><.05) increased after combined exercise. Also β-amyloid significantly (<i>P</i><.05) decreased and DHEAs concentration significantly (<i>P</i><lated with a change in peakVO₂ (r=−0.929, <i>P</i>=0.001) and positively correlated with a change in LDL-C (r=0.799, <i>P</i>=0.031) in the exercise group. The change in DHEAs positively correlated with a change in peakVO₂ (r=0.705, <i>P</i>=0.017) in the exercise group. In conclusion, these results suggest that combined exercise in elderly women (mean age of 75-years) for 12 weeks would play a positive role in cardiopulmonary function, lipid metabolism and dementia risk factors such as β-amyloid and DHEAs.

Respiro-circulatory responses to forearm and calf exercise performed simultaneously at an equal fraction of MVC / 体力科学

Respiro-circulatory responses to forearm and calf exercise performed simultaneously were compared with corresponding responses to forearm or calf exercise performed separately in 9 active women aged 21.1 yr on average. Handgrip exercise and plantar flexion were carried out for 60 s in a supine position at a frequency of 60 times·min<SUP>-1</SUP> and the load was adjusted to 1/3 MVC. Forearm blood flow (FBF) increased to 9.64±1.00 m<I>l</I>·100 m<I>l</I><SUP>-1</SUP>·min<SUP>-1</SUP> immediately after handgrip exercise, and calf blood flow (CBF) to 12.72±0.72 m<I>l</I>·100 m<I>l</I><SUP>-1</SUP>·min<SUP>-1</SUP> after plantar flexion. These increases in FBF and CBF were not significantly different from those after combined arm and leg exercise. Blood flow to inactive limbs showed no significant changes. Rises in systolic and diastolic blood pressure at the end of exercise were significantly higher after handgrip exercise than after plantar flexion. However, no significant difference was found in mean blood pressure among the three types of exercise. Vo<SUB>2</SUB> and HR in combined exercise were significantly higher than those during handgrip exercise, but no significant difference was found between combined exercise and plantar flexion.<BR>Thus the present results indicated that the circulation to active limbs was not restricted when exercise was performed at 1/3 MVC, and that inhibitory summation shown in the central respiro-circulatory response to increased active muscle mass could occur without restriction of the peripheral circulation to the active muscle.

Interference of upper limbs exercise to the periodic lower limbs exercise with different automatized levels / 体力科学

The voluntary exercises consist of different automatized levels and are mostly a combination of the upper limbs and the lower limbs exercises.<BR>This study was to examine the interference of the upper limbs exercise to the periodic lower limbs exercise with different automatized levels. Seven male university students, aged 19 and 20 yrs., served as subjects. The periodic lower limbs exercises were the stepping (walking on the place) and the alternate plantar-flexion of the right and left foot while standing. The frequencies of the lower limbs exercises were 120, 160 and 200 times/min, The stepping, which is similar to the motion of the lower limbs in walking or running, may be performed more frequently in daily life than the plantar-flexion in which only the ankle angle was changed. Therefore, we assume that the stepping is a higly automatized exercise compared with the plantar-flexion. Upper limbs exercise, which was combined with the lower limbs exercise, was the simultaneous tapping of one time by both hand. The interference degree was evaluated by the change of step intervals of the lower limbs exercise. The results were:<BR>1) The fluctuation of step intervals on the plantar-flexion was greater than the fluctuation on the stepping and the smallest in the frequency 120 compared with that in the other frequencies.<BR>2) When the tapping was combined with the lower limbs exercises, one step interval at that time was lengthened and one step interval immediately before the tapping was shortened. This change of step intervals was greater in the plantar-flexion than that in the stepping. The change in the plantar-flexion was the smallest in the frequency 120 compared with that in the other frequencies.<BR>The above mentioned findings suggest that the automatized level of the lower limbs exercise can be clearly evaluated by the interference degree of the upper limbs exercise to the periodic lower limbs exercise.