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1.
Trends Endocrinol Metab ; 35(1): 23-30, 2024 01.
Article in English | MEDLINE | ID: mdl-37735048

ABSTRACT

Exercise has systemic health benefits through effects on multiple tissues, with intertissue communication. Recent studies indicate that exercise may improve breastmilk composition and thereby reduce the intergenerational transmission of obesity. Even if breastmilk is considered optimal infant nutrition, there is evidence for variations in its composition between mothers who are normal weight, those with obesity, and those who are physically active. Nutrition early in life is important for later-life susceptibility to obesity and other metabolic diseases, and maternal exercise may provide protection against the development of metabolic disease. Here we summarize recent research on the influence of maternal obesity on breastmilk composition and discuss the potential role of exercise-induced adaptations to breastmilk as a kick-start to prevent childhood obesity.


Subject(s)
Milk, Human , Pediatric Obesity , Child , Infant , Humans , Female , Pregnancy , Milk, Human/metabolism , Pediatric Obesity/prevention & control , Pediatric Obesity/metabolism , Lactation
2.
BMJ Open Sport Exerc Med ; 9(4): e001751, 2023.
Article in English | MEDLINE | ID: mdl-37829712

ABSTRACT

Breast milk from people with overweight/obesity may differ in composition compared with that from normal-weight people. Exercise training can modify breast milk composition in rodent models, with a beneficial impact demonstrated on the offspring's metabolism, but whether these findings translate to humans is unclear. This trial aims to determine the effect of an exercise intervention on breast milk composition and whether an exercise-induced modification of breast milk impacts the infants' growth and body composition. Effect of Exercise Training on Breastmilk Composition is a randomised, controlled trial with two parallel groups, one exercise group and one control group, with a 1:1 allocation. We will include a minimum of 62 exclusively breastfeeding participants, 6 weeks postpartum. The exercise intervention lasts 8 weeks and comprises 25 supervised endurance exercise sessions with moderate or high intensity. The primary outcome measure is the change in the relative concentration of the human milk oligosaccharide 3'sialyllactose in breast milk from baseline at 6 weeks postpartum to the end of the intervention period. Secondary outcomes include breast milk concentrations of other metabolites, cytokines, hormones and microRNA, maternal health outcomes, infant growth, infant gut microbiome and infant circulating microRNA. Maternal and infant outcomes will be measured before, during and after the intervention period, with a follow-up of the infants until they are 24 months old. Trial registration number NCT05488964.

3.
BMJ Open ; 13(10): e073572, 2023 10 04.
Article in English | MEDLINE | ID: mdl-37793933

ABSTRACT

INTRODUCTION: Gestational diabetes mellitus (GDM) is associated with increased risk for type 2 diabetes in the mother and cardiometabolic diseases in the child. The preconception period is an optimal window to adapt the lifestyle for improved outcomes for both mother and child. Our aim is to determine the effect of a lifestyle intervention, initiated before and continued throughout pregnancy, on maternal glucose tolerance and other maternal and infant cardiometabolic outcomes. METHODS AND ANALYSIS: This ongoing randomised controlled trial has included 167 females aged 18-39 years old at increased risk for GDM who are contemplating pregnancy. The participants were randomly allocated 1:1 to an intervention or control group. The intervention consists of exercise (volume is set by a heart rate-based app and corresponds to ≥ 1 hour of weekly exercise at ≥ 80% of individual heart rate maximum), and time-restricted eating (≤ 10 hours/day window of energy intake). The primary outcome measure is glucose tolerance in gestational week 28. Maternal and offspring outcomes are measured before and during pregnancy, at delivery, and at 6-8 weeks post partum. Primary and secondary continuous outcome measures will be compared between groups based on the 'intention to treat' principle using linear mixed models. ETHICS AND DISSEMINATION: The Regional Committees for Medical and Health Research Ethics in Norway has approved the study (REK 143756). The anonymised results will be submitted for publication and posted in a publicly accessible database of clinical study results. TRIAL REGISTRATION NUMBER: Clinical trial gov NCT04585581.


Subject(s)
Cardiovascular Diseases , Diabetes Mellitus, Type 2 , Diabetes, Gestational , Pregnancy , Female , Child , Humans , Adolescent , Young Adult , Adult , Diabetes, Gestational/prevention & control , Diabetes Mellitus, Type 2/prevention & control , Life Style , Glucose , Randomized Controlled Trials as Topic
4.
Eur J Prev Cardiol ; 30(14): 1462-1472, 2023 Oct 10.
Article in English | MEDLINE | ID: mdl-37491406

ABSTRACT

There is an immediate need to optimize cardiovascular (CV) risk management and primary prevention of childhood obesity to timely and more effectively combat the health hazard and socioeconomic burden of CV disease from childhood development to adulthood manifestation. Optimizing screening programs and risk management strategies for obesity-related CV risk in childhood has high potential to change disease trajectories into adulthood. Building on a holistic view on the aetiology of childhood obesity, this document reviews current concepts in primary prevention and risk management strategies by lifestyle interventions. As an additional objective, this scientific statement addresses the high potential for reversibility of CV risk in childhood and comments on the use of modern surrogate markers beyond monitoring weight and body composition. This scientific statement also highlights the clinical importance of quantifying CV risk trajectories and discusses the remaining research gaps and challenges to better promote childhood health in a population-based approach. Finally, this document provides an overview on the lessons to be learned from the presented evidence and identifies key barriers to be targeted by researchers, clinicians, and policymakers to put into practice more effective primary prevention strategies for childhood obesity early in life to combat the burden of CV disease later in life.


Subject(s)
Cardiology , Cardiovascular Diseases , Pediatric Obesity , Child , Humans , Pediatric Obesity/diagnosis , Pediatric Obesity/epidemiology , Pediatric Obesity/prevention & control , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/etiology , Risk Factors , Life Style , Heart Disease Risk Factors
6.
Nutrients ; 15(10)2023 May 10.
Article in English | MEDLINE | ID: mdl-37242134

ABSTRACT

Gestational diabetes mellitus (GDM) is defined as hyperglycaemia with blood glucose values above normal, but below those diagnostic of diabetes, and is the most common metabolic disease in pregnancy [...].


Subject(s)
Diabetes, Gestational , Hyperglycemia , Pregnancy , Female , Humans , Diabetes, Gestational/diagnosis , Blood Glucose/metabolism , Diet , Exercise
7.
Sci Rep ; 13(1): 4008, 2023 03 10.
Article in English | MEDLINE | ID: mdl-36899039

ABSTRACT

We investigated the effect of a high-fat diet (HFD) on serum lipid subfractions in men with overweight/obesity and determined whether morning or evening exercise affected these lipid profiles. In a three-armed randomised trial, 24 men consumed an HFD for 11 days. One group of participants did not exercise (n = 8, CONTROL), one group trained at 06:30 h (n = 8, EXam), and one group at 18:30 h (n = 8, EXpm) on days 6-10. We assessed the effects of HFD and exercise training on circulating lipoprotein subclass profiles using NMR spectroscopy. Five days of HFD induced substantial perturbations in fasting lipid subfraction profiles, with changes in 31/100 subfraction variables (adjusted p values [q] < 0.05). Exercise training induced a systematic change in lipid subfraction profiles, with little overall difference between EXam and EXpm. Compared with CONTROL, exercise training reduced serum concentrations of > 20% of fasting lipid subfractions. EXpm reduced fasting cholesterol concentrations in three LDL subfractions by ⁓30%, while EXam only reduced concentration in the largest LDL particles by 19% (all q < 0.05). Lipid subfraction profiles changed markedly after 5 days HFD in men with overweight/obesity. Both morning and evening exercise training impacted subfraction profiles compared with no exercise.


Subject(s)
Diet, High-Fat , Overweight , Male , Humans , Lipoproteins , Exercise , Obesity , Lipoproteins, LDL
8.
Eur J Prev Cardiol ; 30(9): 758-768, 2023 07 12.
Article in English | MEDLINE | ID: mdl-36722203

ABSTRACT

AIMS: Cardiovascular disease (CVD) is still a leading cause of death and morbidity in Europe and must be addressed through approaches beyond therapeutic interventions and pharmacological management. Cardiac rehabilitation (CR) is a comprehensive, individualized, and patient-tailored programme, comprising multidisciplinary interventions. Despite its clinical benefits, cost-effectiveness, and existing guidelines, CR uptake in Europe remains suboptimal and detailed information on its current state is lacking. This centralized pan-European study (Overview of Cardiac Rehabilitation-OCRE) aimed to characterize and advance the knowledge about European Society of Cardiology (ESC) affiliated national CR settings. METHODS AND RESULTS: An online survey about provision and quality indicators from CR was sent to the network of National CVD Prevention Coordinators of ESC member states, whose answers were supported by published evidence and/or national experts. The OCRE study had a high participation rate (82%). Current positive aspects of CR include low dropout rates and short average start time after myocardial infarction, as well as public funding being standard practice. However, the uptake rate and average duration of CR are still suboptimal, and several countries lack CR mandatory rotation in Cardiology training, guidance documents, national accreditation, and electronic database registries. We also found several barriers to CR guideline implementation, at patient, staff, and healthcare levels. CONCLUSIONS: This study provides a comprehensive characterization of CR in Europe, generating important insight on the current provision and quality of CR in Europe, highlighting its sucesses and shortcomings, and discussing important strategies to overcome current obstacles.


Since cardiovascular disease (CVD) is a leading cause of mortality and morbidity, this work sought to characterize the current state of cardiac rehabilitation (CR), an important therapeutic tool comprising multidisciplinary interventions to manage cardiovascular risk, in Europe. Current positive aspects of CR in Europe include low dropout rates and short average start time after myocardial infarction, as well as public funding being standard practice. Suboptimal aspects of CR in Europe include low uptake rates and short average duration, a lack of CR mandatory rotation in cardiology training, guidance documents, lack of national accreditation, and electronic database registries. Although provision of CR is at an encouraging level in Europe, it often is of suboptimal quality, signalling the need for improvement in the allocation of human and monetary resources. This study also highlighted the following major barriers to the implementation and use of the cardiovascular prevention and rehabilitation guidelines: low socioeconomic status and educational level, older age, lack of benefit awareness, presence of comorbidities, transportation problems and financial concern (at patient level), lack of automatic referral, no financial incentives, lack of multidisciplinary teams and time consumption (at staff level), and reimbursement issues, lack of preventive culture, lack of specialized locations, and geographical issues (at healthcare level).


Subject(s)
Cardiac Rehabilitation , Cardiology , Myocardial Infarction , Humans , Myocardial Infarction/diagnosis , Myocardial Infarction/epidemiology , Myocardial Infarction/therapy , Europe/epidemiology , Delivery of Health Care
9.
Front Nutr ; 10: 1275508, 2023.
Article in English | MEDLINE | ID: mdl-38164413

ABSTRACT

Introduction: Adiponectin plays a role in glucose and fat metabolism and is present in human breast milk. It has been postulated that higher breast milk adiponectin concentrations may prevent rapid weight gain in infancy. Prior research indicates that circulating adiponectin increases acutely after endurance exercise, but no prior research has investigated the effect of exercise on breast milk adiponectin concentrations. The purpose of this randomised, cross-over study was to determine the acute effects of endurance exercise on adiponectin concentrations in human breast milk. Methods: Participants who were exclusively breastfeeding a 6-12 week-old term infant (N = 20) completed three conditions in the laboratory: (1) Moderate-intensity continuous training (MICT), (2) High-intensity interval training (HIIT), and (3) No activity (REST). At each condition, we collected breast milk at 07:00 h (before exercise/rest), 11:00 h (immediately after exercise/rest), 12:00 h (1 h after exercise/rest), and 15:00 h (4 h after exercise/rest) and determined adiponectin concentrations using enzyme-linked immunosorbent assay. We compared changes in adiponectin concentrations after MICT and HIIT, adjusted for the morning concentration on each test day, with those after REST, using paired t-tests. Results: Adiponectin concentrations increased 1 h after HIIT, from 4.6 (± 2.2) µg/L in the 07:00 h sample to 5.6 (± 2.6) µg/L. This change was 0.9 µg/L (95% confidence interval 0.3 to 1.5) greater than the change between these two timepoints in the REST condition (p = 0.025). There were no other statistically significant changes in adiponectin concentrations. Conclusion: HIIT may increase adiponectin concentrations in breast milk acutely after exercise. Further studies should determine the impact of exercise-induced elevations in breast milk adiponectin concentrations on growth and metabolism in infancy.

10.
BMJ Open ; 12(11): e065206, 2022 11 07.
Article in English | MEDLINE | ID: mdl-36344004

ABSTRACT

INTRODUCTION: Dietary and/or physical activity interventions are often recommended for women with overweight or obesity as the first step prior to fertility treatment. However, randomised controlled trials (RCTs) so far have shown inconsistent results. Therefore, we propose this individual participant data meta-analysis (IPDMA) to evaluate the effectiveness and safety of dietary and/or physical activity interventions in women with infertility and overweight or obesity on reproductive, maternal and perinatal outcomes and to explore if there are subgroup(s) of women who benefit from each specific intervention or their combination (treatment-covariate interactions). METHODS AND ANALYSIS: We will include RCTs with dietary and/or physical activity interventions as core interventions prior to fertility treatment in women with infertility and overweight or obesity. The primary outcome will be live birth. We will search MEDLINE, Embase, Cochrane Central Register of Controlled Trials and trial registries to identify eligible studies. We will approach authors of eligible trials to contribute individual participant data (IPD). We will perform risk of bias assessments according to the Risk of Bias 2 tool and a random-effects IPDMA. We will then explore treatment-covariate interactions for important participant-level characteristics. ETHICS AND DISSEMINATION: Formal ethical approval for the project (Venus-IPD) was exempted by the medical ethics committee of the University Medical Center Groningen (METc code: 2021/563, date: 17 November 2021). Data transfer agreement will be obtained from each participating institute/hospital. Outcomes will be disseminated internationally through the collaborative group, conference presentations and peer-reviewed publication. PROSPERO REGISTRATION NUMBER: CRD42021266201.


Subject(s)
Infertility , Overweight , Female , Humans , Pregnancy , Diet , Exercise , Meta-Analysis as Topic , Obesity/complications , Obesity/therapy , Overweight/complications , Overweight/therapy , Systematic Reviews as Topic
11.
Cell Metab ; 34(10): 1416-1419, 2022 10 04.
Article in English | MEDLINE | ID: mdl-36198285

ABSTRACT

Research-based lifestyle choices can help us live healthier lives, and in this issue of Cell Metabolism, we showcase articles focused on diet and exercise interventions. Here, we take a moment to learn about the motivation and challenges behind these studies and look forward to the next steps in applying these interventions to promote metabolic health.


Subject(s)
Diet , Exercise , Life Style , Motivation
12.
Cell Metab ; 34(10): 1457-1471.e4, 2022 10 04.
Article in English | MEDLINE | ID: mdl-36198292

ABSTRACT

Diet modification and exercise training are primary lifestyle strategies for obesity management, but poor adherence rates limit their effectiveness. Time-restricted eating (TRE) and high-intensity interval training (HIIT) improve cardiometabolic health in at-risk individuals, but whether these two interventions combined induce superior improvements in glycemic control than each individual intervention is not known. In this four-armed randomized controlled trial (ClinicalTrials.gov NCT04019860), we determined the isolated and combined effects of 7 weeks of TRE (≤10-h daily eating window, with ad libitum energy intake) and HIIT (three exercise sessions per week), compared with a non-intervention control group, on glycemic control and secondary cardiometabolic outcomes in 131 women (36.2 ± 6.2 years) with overweight/obesity. There were no statistically significant effects after isolated TRE, HIIT, or a combination (TREHIIT) on glucose area under the curve during an oral glucose tolerance test (the primary outcome) compared with the control group (TRE, -26.3 mmol/L; 95% confidence interval [CI], -82.3 to 29.7, p = 0.36; HIIT, -53.8 mmol/L; 95% CI, -109.2 to 1.6, p = 0.057; TREHIIT, -41.3 mmol/L; 95% CI, -96.4 to 13.8, p = 0.14). However, TREHIIT improved HbA1c and induced superior reductions in total and visceral fat mass compared with TRE and HIIT alone. High participant adherence rates suggest that TRE, HIIT, and a combination thereof may be realistic diet-exercise strategies for improving markers of metabolic health in women at risk of cardiometabolic disease.


Subject(s)
Cardiovascular Diseases , Overweight , Body Composition , Cardiovascular Diseases/complications , Exercise , Female , Glucose , Glycated Hemoglobin/metabolism , Humans , Obesity/metabolism , Overweight/complications , Overweight/therapy
13.
Eur Heart J ; 43(46): 4777-4788, 2022 12 07.
Article in English | MEDLINE | ID: mdl-36136303

ABSTRACT

There is strong evidence that sex chromosomes and sex hormones influence blood pressure (BP) regulation, distribution of cardiovascular (CV) risk factors and co-morbidities differentially in females and males with essential arterial hypertension. The risk for CV disease increases at a lower BP level in females than in males, suggesting that sex-specific thresholds for diagnosis of hypertension may be reasonable. However, due to paucity of data, in particularly from specifically designed clinical trials, it is not yet known whether hypertension should be differently managed in females and males, including treatment goals and choice and dosages of antihypertensive drugs. Accordingly, this consensus document was conceived to provide a comprehensive overview of current knowledge on sex differences in essential hypertension including BP development over the life course, development of hypertension, pathophysiologic mechanisms regulating BP, interaction of BP with CV risk factors and co-morbidities, hypertension-mediated organ damage in the heart and the arteries, impact on incident CV disease, and differences in the effect of antihypertensive treatment. The consensus document also highlights areas where focused research is needed to advance sex-specific prevention and management of hypertension.


Subject(s)
Hypertension , Sex Characteristics , Female , Humans , Male , Hypertension/epidemiology
14.
Eur J Prev Cardiol ; 29(17): 2183-2199, 2022 Dec 07.
Article in English | MEDLINE | ID: mdl-35989414

ABSTRACT

Increasing evidence links changes in epigenetic systems, such as DNA methylation, histone modification, and non-coding RNA expression, to the occurrence of cardiovascular disease (CVD). These epigenetic modifications can change genetic function under influence of exogenous stimuli and can be transferred to next generations, providing a potential mechanism for inheritance of behavioural intervention effects. The benefits of exercise and nutritional interventions in the primary and secondary prevention of CVD are well established, but the mechanisms are not completely understood. In this review, we describe the acute and chronic epigenetic effects of physical activity and dietary changes. We propose exercise and nutrition as potential triggers of epigenetic signals, promoting the reshaping of transcriptional programmes with effects on CVD phenotypes. Finally, we highlight recent developments in epigenetic therapeutics with implications for primary and secondary CVD prevention.


Subject(s)
Cardiovascular Diseases , Humans , Secondary Prevention , Cardiovascular Diseases/genetics , Cardiovascular Diseases/prevention & control , Exercise
15.
Front Sports Act Living ; 4: 903300, 2022.
Article in English | MEDLINE | ID: mdl-35784804

ABSTRACT

Rationale: Since many modern exergames include a multiplayer component, this study aimed to compare the physiological and perceptual responses between playing a cycling exergame alone or with others. Methods: In this randomized crossover study, 15 healthy individuals aged between 10 and 30 years completed a single-player and a multiplayer exergaming session. The main outcomes were exercise intensity, measured as oxygen uptake (V°O2) and heart rate (HR), and perceived enjoyment, pleasure, and exertion. Results: Peak HR was significantly higher during multiplayer (172 ± 23 beats per minute [bpm]) vs. single-player exergaming (159 ± 27 bpm) with a mean difference of 13 bpm (95% CI: 2 to 24, p = 0.02). Peak V°O2 was 33.6 ± 9.5 mL·kg-1·min-1 and 30.4 ± 9.1 mL·kg-1·min-1 during multiplayer and single-player exergaming, respectively with no statistically significant difference between conditions (3.2, 95% CI: -0.2-6.6 mL·kg-1·min-1, p = 0.06). Average HR, average V°O2 and perceptual responses did not differ between single- and multiplayer exergaming. Conclusion: Other than inducing a higher HR, multiplayer exergaming showed no significant benefits on exercise intensity or perceptual responses over single-player exergaming. However, the higher peak HR and a tendency of higher peak V°O2 intensity during multiplayer exergaming imply that multiplayer exergaming may offer some advantages over single-player exergaming that could impact the potential health benefits of exergaming.

16.
J Clin Med ; 11(6)2022 Mar 15.
Article in English | MEDLINE | ID: mdl-35329952

ABSTRACT

INTRODUCTION: polycystic ovary syndrome (PCOS) is associated with cardiovascular disease (CVD) risk factors. First-line therapy for PCOS is lifestyle changes including exercise. We compared CVD risk factors between women with and without PCOS and examined the responses to high-intensity interval training (HIIT). METHODS: women with PCOS were randomized to HIIT (n = 41) or a non-exercise control group (n = 23) for 16 weeks. Women without PCOS (n = 15) were age- and BMI-matched to participants with PCOS and completed 16 weeks of HIIT. CVD markers included blood pressure, heart rate, flow mediated dilatation (FMD), carotid intima-media thickness (IMT), and circulating concentrations of lipids, glucose, insulin, and matrix metalloproteinase-9 (MMP-9). RESULTS: resting heart rate was higher in women with PCOS than without PCOS (p =0.011) and was reduced after HIIT in women with PCOS (-2.8 beats/min, 95% CI: -5.4, -0.2, p = 0.037). FMD was not significantly different between women with PCOS (5.5%, SD 4.1) and those without PCOS (8.2%, SD 3.9) at baseline. HIIT reduced time-to-peak dilatation of the brachial artery in women with PCOS compared with women without PCOS (-55 s, 95% CI: -96, -13, p = 0.012). CONCLUSIONS: we found little difference in CVD risk factors between women with and without PCOS at baseline, but some indications of endothelial dysfunction in women with PCOS.

17.
JMIR Mhealth Uhealth ; 10(1): e31607, 2022 01 19.
Article in English | MEDLINE | ID: mdl-35044318

ABSTRACT

BACKGROUND: Guidelines for physical activity and exercise during pregnancy recommend that all women without contraindications engage in regular physical activity to improve both their own health and the health of their baby. Many women are uncertain how to safely engage in physical activity and exercise during this life stage and are increasingly using mobile apps to access health-related information. However, the extent to which apps that provide physical activity and exercise advice align with current evidence-based pregnancy recommendations is unclear. OBJECTIVE: This study aims to conduct a systematic search and content analysis of apps that promote physical activity and exercise in pregnancy to examine the alignment of the content with current evidence-based recommendations; delivery, format, and features of physical activity and exercise instruction; and credentials of the app developers. METHODS: Systematic searches were conducted in the Australian App Store and Google Play Store in October 2020. Apps were identified using combinations of search terms relevant to pregnancy and exercise or physical activity and screened for inclusion (with a primary focus on physical activity and exercise during pregnancy, free to download or did not require immediate paid subscription, and an average user rating of ≥4 out of 5). Apps were then independently reviewed using an author-designed extraction tool. RESULTS: Overall, 27 apps were included in this review (Google Play Store: 16/27, 59%, and App Store: 11/27, 41%). Two-thirds of the apps provided some information relating to the frequency, intensity, time, and type principles of exercise; only 11% (3/27) provided this information in line with current evidence-based guidelines. Approximately one-third of the apps provided information about contraindications to exercise during pregnancy and referenced the supporting evidence. None of the apps actively engaged in screening for potential contraindications. Only 15% (4/27) of the apps collected information about the user's current exercise behaviors, 11% (3/27) allowed users to personalize features relating to their exercise preferences, and a little more than one-third provided information about developer credentials. CONCLUSIONS: Few exercise apps designed for pregnancy aligned with current evidence-based physical activity guidelines. None of the apps screened users for contraindications to physical activity and exercise during pregnancy, and most lacked appropriate personalization features to account for an individual's characteristics. Few involved qualified experts during the development of the app. There is a need to improve the quality of apps that promote exercise in pregnancy to ensure that women are appropriately supported to engage in exercise and the potential risk of injury, complications, and adverse pregnancy outcomes for both mother and child is minimized. This could be done by providing expert guidance that aligns with current recommendations, introducing screening measures and features that enable personalization and tailoring to individual users, or by developing a recognized system for regulating apps.


Subject(s)
Mobile Applications , Pregnant Women , Australia , Exercise , Female , Humans , Pregnancy , Pregnancy Outcome
18.
Med Sci Sports Exerc ; 54(5): 717-727, 2022 05 01.
Article in English | MEDLINE | ID: mdl-35019901

ABSTRACT

PURPOSE: Exercise training is recommended to improve cardiometabolic health and fertility in women with polycystic ovary syndrome (PCOS), yet there are few randomized controlled trials on the effects of different exercise protocols on clinical reproductive outcomes. Our aim was to determine the effect of high-intensity interval training (HIT) on menstrual frequency, as a proxy of reproductive function, in women with PCOS. METHODS: The IMPROV-IT study was a two-center randomized controlled trial undertaken in Norway and Australia. Women with PCOS were eligible for inclusion. After stratification for body mass index <27 or ≥27 kg·m-2 and study center, participants were randomly allocated (1:1:1) to high-volume HIT (HV-HIT), low-volume HIT (LV-HIT), or a control group. Measurements were assessed at baseline, after the 16-wk exercise intervention, and at 12-month follow-up. The primary outcome was menstrual frequency after 12 months. Secondary outcomes included markers of cardiometabolic and reproductive health, quality of life, and adherence to and enjoyment of HIT. RESULTS: We randomly allocated 64 participants to the HV-HIT (n = 20), LV-HIT (n = 21), or control group (n = 23). There were no differences in menstrual frequency at 12 months between the LV-HIT and control groups (frequency ratio, 1.02; 95% confidence interval [CI], 0.73-1.42), the HV-HIT and control groups (frequency ratio, 0.93; 95% CI, 0.67-1.29), or the LV-HIT and HV-HIT groups (frequency ratio, 1.09; 95% CI, 0.77-1.56). Menstrual frequency increased in all groups from baseline to 12 months. More participants became pregnant in the LV-HIT group (n = 5) than in the control group (n = 0, P = 0.02). CONCLUSIONS: A semisupervised HIT intervention did not increase menstrual frequency in women with PCOS.Clinical Trial Registration Number:ClinicalTrials.gov (NCT02419482).


Subject(s)
High-Intensity Interval Training , Polycystic Ovary Syndrome , Female , Humans , Menstrual Cycle/physiology , Polycystic Ovary Syndrome/physiopathology , Polycystic Ovary Syndrome/therapy , Pregnancy , Treatment Outcome
19.
Eur J Sport Sci ; 22(6): 867-876, 2022 Jun.
Article in English | MEDLINE | ID: mdl-33944698

ABSTRACT

ABSTRACTExergaming has been proposed as a promising alternative to traditional endurance training since many experience exergaming as more enjoyable. Therefore, the aim of this trial was to determine the exergaming-induced effect on cardiorespiratory fitness. This parallel-group randomised controlled trial, investigated the effects of regular exergaming among healthy adults (aged ≥ 18 years) who were not endurance-trained. Participants allocated to the exergaming group (n = 13) used the Playpulse exergaming platform for a minimum of 45 min twice weekly for eight weeks, whereas the control group (n = 17) received no intervention. The primary outcome measure was the between-group difference in peak oxygen uptake (V̇O2peak) after the intervention. V̇O2peak increased significantly from baseline (43.9 [SD 7.0]) to after the intervention (45.3 [SD 8.2] mL kg-1 min-1) in the exergaming group, compared to the control group (42.4 [SD 7.0] to 42.0 [SD 5.7] mL·kg-1·min-1) with a between-group difference of 2.1 mL kg-1 min-1 (95% CI: 0.2-4.1; p = 0.04). The average score on the Feeling Scale reported during exergaming was 3.4 (95% CI 3.2-3.6), with 3 being "good" and 5 "very good" and was not related to the participants' exergaming skills. There were no adverse events during this trial. Two weekly sessions using the Playpulse exergaming platform can improve V̇O2peak. This finding suggests that exergaming can be an efficient form of endurance training. Furthermore, our findings indicate that participants' enjoyed exergaming irrespective of exergaming skills.Trial registration: ClinicalTrials.gov identifier: NCT04112329..


Subject(s)
Cardiorespiratory Fitness , Adult , Exercise Therapy , Exergaming , Humans
20.
Eur J Prev Cardiol ; 29(1): 205-215, 2022 02 19.
Article in English | MEDLINE | ID: mdl-33758927

ABSTRACT

Treatment of hypertension and its complications remains a major ongoing health care challenge. Around 25% of heart attacks in Europe are already attributed to hypertension and by 2025 up to 60% of the population will have hypertension. Physical inactivity has contributed to the rising prevalence of hypertension, but patients who exercise or engage in physical activity reduce their risk of stroke, myocardial infarction, and cardiovascular mortality. Hence, current international guidelines on cardiovascular disease prevention provide generic advice to increase aerobic activity, but physiological responses differ with blood pressure (BP) level, and greater reductions in BP across a population may be achievable with more personalized advice. We performed a systematic review of meta-analyses to determine whether there was sufficient evidence for a scientific Consensus Document reporting how exercise prescription could be personalized for BP control. The document discusses the findings of 34 meta-analyses on BP-lowering effects of aerobic endurance training, dynamic resistance training as well as isometric resistance training in patients with hypertension, high-normal, and individuals with normal BP. As a main finding, there was sufficient evidence from the meta-review, based on the estimated range of exercise-induced BP reduction, the number of randomized controlled trials, and the quality score, to propose that type of exercise can be prescribed according to initial BP level, although considerable research gaps remain. Therefore, this evidence-based Consensus Document proposes further work to encourage and develop more frequent use of personalized exercise prescription to optimize lifestyle interventions for the prevention and treatment of hypertension.


Subject(s)
Cardiology , Hypertension , Blood Pressure , Consensus , Humans , Hypertension/diagnosis , Hypertension/epidemiology , Hypertension/prevention & control , Prescriptions
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