Effects Of High-intensity Aerobic Training Research Articles

Clinical (BMI and MRI) and Biochemical (Adiponectin, Leptin, TNF-α, and IL-6) Effects of High-Intensity Aerobic Training with High-Protein Diet in Children with Obesity Following COVID-19 Infection.

Objective: To find the clinical and biochemical effects of high-intensity aerobic training with a high-protein diet in children with obesity following COVID-19 infection. Methods: By using the block randomization method, the eligible participants were randomized into two groups. The first group received high-intensity aerobic training with a high-protein diet (Group A; n = 38) and the second group were allowed to do regular physical activities and eat a regular diet (Group B; n = 38) for 8 weeks. Clinical (basal metabolic index (BMI) and muscle-mass-cross-sectional area (CSA)) and biochemical (Adiponectin, leptin, TNF-α, and IL-6) measures were measured at baseline, on the 8th week, and at 6-months follow-up. Results: Baseline demographic and clinical attributes show homogenous presentation among the study groups (p > 0.05). After eight weeks of intervention, and at the end of 6-months follow-up, the basal metabolic index (BMI) (6.3) (CI 95% 4.71 to 7.88), mid-arm CSA (17) (CI 95% 14.70 to 19.29), mid-thigh CSA (13.10) (CI 95% 10.60 to 15.59), mid-calf CSA (11.3) (CI 95% 9.30 to 13.29), adiponectin (−1.9) (CI 95% −2.13 to −1.66), leptin (5.64) (CI 95% 5.50 to 5.77), TNF-α (0.5) (CI 95% 0.42 to 0.57), and IL-6 (0.21) (CI 95% 0.18 to 0.23) showed more improvement (p < 0.001) in Group A than Group B (p > 0.05). Conclusion: Overall, this trial found that high-intensity aerobic training with a high-protein diet decreased the BMI percentile and muscle mass (arm, thigh, and calf), and positively altered the biochemical variables in children with obesity.

A mixed-methods study to evaluate the effectiveness and cost-effectiveness of aerobic exercise for primary dysmenorrhea: A study protocol.

Background and purposeSeveral studies have evaluated the effects of high-intensity aerobic training (HIAT) on pain severity and quality of life (QoL) among women with primary dysmenorrhea. However, to date, no studies have evaluated the effectiveness of HIAT on academic performance or absenteeism or examined the cost-effectiveness of HIAT relative to other treatments in women with primary dysmenorrhea. Furthermore, the mechanisms underlying aerobic exercise-induced analgesia in primary dysmenorrhea remain unclear. The objectives of this study are to: (1) evaluate the effects of HIAT on absenteeism and academic performance among university students, (2) identify the underlying mechanisms associated with aerobic exercise-induced analgesia in primary dysmenorrhea, and (3) determine the cost-effectiveness of HIAT compared with a wait-list control (WLC) group receiving usual care.MethodsA sequential, embedded, mixed-methods study design, including a crossover, randomised controlled trial (RCT) and semi-structured focus groups, will be conducted alongside an economic evaluation. A total of 130 women aged 18–24 years will be randomised into either HIAT (n = 65) or wait-list control (n = 65) groups. Primary outcomes will include average pain intensity, absenteeism from university, and academic performance. Primary mediators will include salivary progesterone and prostaglandin F2α levels. Outcome and meditator variables will be assessed at baseline and post-treatment, at 12 and 28 weeks. An economic analysis will be conducted from the societal and healthcare perspective of Hong Kong. Semi-structured focus groups will be conducted at 32 weeks. Of the 130 participants included in the RCT, 70 will be included in the focus groups.Statistical analysisAll statistical analyses will be performed on an intention-to-treat basis, using SPSS (version 24). Preliminary analysis using an independent samples t-test and a two-sided, unpaired Student’s t-test will be performed to exclude carryover effects and identify within-participant differences in outcome variables between the study periods, respectively. Treatment effects will be evaluated using analysis of variance via a mixed-effects model with fixed effects for intervention, period, and sequence. In all models, random effects will include the participants nested within the sequence as a sampling cluster. The mediation effects will be assessed using the Sobel test. The EQ-5D responses will be converted into utility scores to estimate the gain or loss of quality-adjusted life-years. Seemingly unrelated regression analyses will be used to estimate the total cost differences and effect differences. Qualitative data will be analysed using the process of thematic analysis.

Efeito do exercício aeróbico de alta intensidade comparado a moderada intensidade na reabilitação de pacientes pós-infarto agudo do miocárdio: uma revisão sistemática

O treinamento aeróbico em pacientes com Doença Arterial Coronariana reduz o risco de reinfarto, mortalidade cardíaca e mortalidade por qualquer causa, entretanto, existem divergências na literatura em relação à intensidade de treinamento. Este estudo visa investigar os efeitos do treinamento aeróbico de alta intensidade comparado ao de moderada intensidade sobre a capacidade cardiorrespiratória e qualidade de vida de indivíduos pós-Infarto Agudo do Miocárdio. Os estudos foram selecionados para esta revisão sistemática a partir das bases de dados online US National Library of Medicine (MEDLINE/PUBMED), Literatura Latino Americana e do Caribe em Ciências da Saúde (LILACS), Physiotherapy Evidence Database (PEDro). Dos 1689 artigos iniciais, 44 foram rastreados e 21 foram selecionados para análise do texto completo. Destes, 12 artigos foram incluídos. Os estudos da presente revisão apresentaram qualidade metodológica entre razoável e boa, com base na análise da Escala PEDro. O treinamento aeróbico de alta intensidade promove incremento do condicionamento cardiorrespiratório igual ou superior ao de moderada intensidade, contudo, ambos os treinamentos parecem melhorar a qualidade de vida em pacientes pós-Infarto Agudo do Miocárdio. Futuros ensaios clínicos e estudos de coorte fazem-se necessários para verificar a segurança do treinamento de alta intensidade em programas de reabilitação de longo prazo.

High-intensity aerobic training lowers blood pressure and modulates the renal renin-angiotensin system in spontaneously hypertensive rats

ABSTRACTBackground: This study aimed to verify the effects of high-intensity aerobic training (HIAT) on BP control and renin-angiotensin system (RAS) components in renal tissue of SHR. Ten SHRs received HIAT or control for 8-weeks. At the end of the training, the SBP showed a reduction of ~ 30mmHg (p < .01) in HIAT and increased by ~ 15 mmHg in the control group. HIAT resulted in a higher release of nitrite, IL-6, ACE2 and ATR2. These results indicated an association between BP, NO and renal RAS.Abbreviations: JAA: writing, carried out all experimental procedures, performed statistical analysis, original draft and revised manuscript DMS: data interpretation, formal analysis, writing, editing and revised manuscript BAP: carried all experimental procedures, revised manuscritpt CPCG: carried all experimental procedures, revised manuscritpt MEN: experimental procedures, revised manuscript and data interpretation RWP: drafted and revised manuscript RCA: writing, experimental procedures, revised manuscript JP: writing, data interpretation and revised manuscript OLF: writing, original draft and revised manuscript.

The Effects of High-Intensity Aerobic Interval Training In The Elderly With Myocardial Infarction

The Effects of High-Intensity Aerobic Interval Training In The Elderly With Myocardial Infarction

Preconditioning Effect of High-Intensity Aerobic Training on Myocardial Ischemia-Reperfusion Injury and Beclin-1 Gene Expression in Rats

Preconditioning Effect of High-Intensity Aerobic Training on Myocardial Ischemia-Reperfusion Injury and Beclin-1 Gene Expression in Rats

Effects of exercise and group counselling on body composition and VO2max in overweight women with polycystic ovary syndrome

Polycystic ovary syndrome (PCOS) is often associated with an increased waist circumference and with lower cardio-respiratory fitness as a consequence of obesity, which may be improved by physical activity. To investigate the effect of high-intensity aerobic training combined with group counselling sessions on anthropometry and cardio-respiratory fitness in women with PCOS. Seventeen sedentary, overweight women with PCOS were randomized in a cross-over design to 16weeks of intervention: eight weeks high-intensity aerobic exercise was followed by eight weeks of group counselling (n=8) or vice versa (n=9). Fourteen of the women completed the tests. Waist circumference, body mass index and maximal aerobic capacity (VO(2max) ) were measured at baseline, cross-over and post-intervention. There was a decrease in waist circumference (119.9 vs. 106.5cm) and body mass index (34.9 vs. 34.4kg/m(2) ) and an increase in VO(2max) (2554.9 vs. 2807.9mL/min) during the intervention period (t=16 weeks, n=14), all p<0.05. Weight loss tended to be highest in the group which started with group counselling (2.9 vs. 0.6kg, t=16weeks, n=14, p=0.055). Exercise in groups followed by counselling or vice versa had beneficial effects on waist circumference, weight, and VO(2max) in women with PCOS. Future studies should examine possible beneficial effects of combined group counselling and exercise on weight loss and adherence to exercise protocols among women with PCOS.