scholarly journals Supplementation with a Bioactive Melon Concentrate in Humans and Animals: Prevention of Oxidative Damages and Fatigue in the Context of a Moderate or Eccentric Physical Activity

2020 ◽  
Vol 17 (4) ◽  
pp. 1142
Author(s):  
Marion Saby ◽  
Audrey Gauthier ◽  
Sandy Barial ◽  
Laure Egoumenides ◽  
Bernard Jover
Keyword(s):  
Oxidative Stress ◽  
Physical Activity ◽  
Plasma Level ◽  
Eccentric Exercise ◽  
Psychological Health ◽  
Repeated Measures ◽  
Healthy Subjects ◽  
Controlled Trial ◽  
Antioxidant Properties ◽  
Regular Physical Activity

Exercise is recognized to provide both physical and psychological health benefits. However, oxidative stress can occur and induce muscular damages. SOD B®; M is a melon concentrate, well known to counteract oxidative stress and prevent its side effects. The present study aimed to evaluate the potential of the melon concentrate in the context of both a strong and isolated effort associated with deleterious effects, and a moderate and regular physical activity considered as beneficial. First, a preclinical study was set up on rats to evaluate its potential on the prevention of damages induced by an eccentric exercise. Secondly, the combined effect of the melon concentrate and a regular standardized physical training was studied on the overall physical condition of healthy subjects in a randomized, double-blind, placebo-controlled trial. Repeated measures Analysis of Variance (ANOVA), student’s t test and Mann–Whitney test were used for statistical analyses. Melon concentrate helped to prevent gastrocnemius damages induced by the eccentric exercise. It allowed a reduction of fibrosis by approximately 38% and a reduction of Tumor Necrosis Factor- α (TNF-α) plasma level by 28%. This supplementation also induced a rearrangement of myosin fibers and an increase in PGC-1α plasma level. In the clinical study, melon concentrate was able to decrease oxidative stress and C-Reactive protein (CRP) plasma level. Besides, magnesium (Mg) plasma level was higher in the context of a regular training performed by healthy subjects supplemented with the melon concentrate. Therefore, the melon concentrate allowed a better adaptation to effort linked to PGC-1α activation: a regulator of energy metabolism. The antioxidant properties of the melon concentrate and its ability to mobilize magnesium also suggest that the supplementation could induce a better resistance to fatigue and recovery during regular physical activity.

scholarly journals Supplementation with a bioactive melon concentrate in humans and animals: prevention of oxidative damages and fatigue in the context of a moderate or eccentric physical activity

2019 ◽  
Author(s):  
Marion Saby ◽  
Audrey Gauthier ◽  
Sandy Barial ◽  
Laure Egoumenides ◽  
Bernard Jover
Keyword(s):  
Oxidative Stress ◽  
Physical Activity ◽  
Plasma Level ◽  
Eccentric Exercise ◽  
Psychological Health ◽  
Repeated Measures ◽  
Healthy Subjects ◽  
Controlled Trial ◽  
Antioxidant Properties ◽  
Regular Physical Activity

Abstract Background: Physical activity is recognized to provide both physical and psychological health benefits. However, oxidative stress can occur in case of poor adaptation to effort and reduce training effectiveness inducing muscular and joint damages. SOD B® M is a melon concentrate, well known to counteract oxidative stress and prevent its side effects. The present study aimed to evaluate the potential of the melon concentrate in the context of both a strong and isolated effort associated with deleterious effects, and a moderate and regular physical activity considered as beneficial. Methods: First, a preclinical study was set up on Sprague Dawley rats to evaluate the effect of the melon concentrate on the prevention of damages induced by an eccentric exercise. Secondly, the combined effect of the melon concentrate and a regular standardized physical training was studied on the overall physical condition of healthy subjects in a randomized, double-blind, placebo-controlled trial. Repeated measures ANOVA, student’s t test and Mann-Whitney test were used for statistical analyses. Results: Melon concentrate helped to prevent gastrocnemius damages induced by the eccentric exercise. It allowed a reduction of fibrosis by approximately 38 % and a reduction of TNF-α plasma level by 28 %. This supplementation also induced a rearrangement of myosin fibers and an increase in PGC-1α plasma level. In the clinical study, melon concentrate was able to decrease oxidative stress and CRP plasma level. Besides, magnesium (Mg) plasma level was higher in the context of a regular training performed by healthy subjects supplemented with the melon concentrate. Conclusions: Melon concentrate was able to prevent damages generated during an eccentric exercise. It also allowed a better adaptation to effort linked to PGC-1α activation: a regulator of energy metabolism. The antioxidant properties of the melon concentrate and its ability to mobilize Mg also suggest that the supplementation could induce a better endurance and resistance to fatigue during regular physical activity.

scholarly journals Effects of cycling workstation to get tertiary employee moving on their overall health: study protocol for a REMOVE trial

Trials ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Terry Guirado ◽  
Lore Metz ◽  
Bruno Pereira ◽  
Audrey Bergouignan ◽  
David Thivel ◽  
...  
Keyword(s):  
Physical Activity ◽  
Psychological Health ◽  
Controlled Trial ◽  
Office Workers ◽  
Health Study ◽  
Full Time ◽  
Eating Behaviours ◽  
Potential Health ◽  
Link Type ◽  
Working Day

Abstract Background Sedentary behaviour (SB) and low levels of physical activity (PA) are predictors of morbidity and mortality. Tertiary employees spend a considerable amount of their daily time seated and new efficient strategies to both reduce sedentary time and increase physical activity are needed. In that context, the REMOVE study aims at evaluating the health effects of a 24-week cycling desk intervention among office workers. Methods A prospective, open-label, multicentre, two-arm parallel, randomized controlled trial (RCT) will be conducted in office-sitting desk workers. Office workers (N = 80) who have 0.8 full time equivalent hours (FTE) and 75% of this time in a sitting position will be recruited from tertiary worksites in Clermont-Ferrand, France. Subjects will be randomly assigned to one of the two following interventions: (i) PPM6: performance of two 30 min of cycling desk (using portable pedal exercise machine—PPM) per working day for 6 months or (ii) CTL_PPM3: 3 months with no intervention (control) followed by 3 months during which workers will be asked to complete two 30 min of PPM per working day. At baseline (T0), at 3 months (T1) and at 6 months (T2) after the start of the interventions, primary outcomes; 7-day PA and SB (3D-accelerometers), secondary outcomes; body composition (bioelectrical impedance), physical fitness (aerobic fitness, upper and lower limb strength), metabolic outcomes (fasting blood samples), self-perceived stress, anxiety, quality of life at work and job strain (questionnaires), tertiary outcomes; resting metabolic rate and cycling energy expenditure (indirect calorimetry) and eating behaviours (questionnaires) will be measured. An ergonomic approach based on observations and individual interviews will be used to identify parameters that could determine adherence. Discussion The REMOVE study will be the first RCT to assess the effects of cycling workstations on objectively measured PA and SB during working and non-working hours and on key physiological and psychological health outcomes. This study will provide important information regarding the implementation of such cycling workstations in office workers and on the associated potential health benefits. Trial registration ClinicalTrials.govNCT04153214. Registered on November 2019, version 1

scholarly journals Impact of a residential program on the psychological needs, motivation and physical activity of obese adults: A controlled trial based on Self-Determination Theory

2018 ◽  
pp. 33-40
Author(s):  
Julie Boiché ◽  
Mathieu Gourlan ◽  
Léna Rubin
Keyword(s):  
Physical Activity ◽  
Repeated Measures ◽  
Standard Care ◽  
Controlled Trial ◽  
Self Determination Theory ◽  
Psychological Needs ◽  
Self Determination ◽  
Control Group ◽  
Obese Adults ◽  
Perceived Relatedness

Purpose: This study aimed to examine the increased benefits of a Self Determination Theory (SDT)-based motivational component on psychological needs’ fulfillment, self-determined motivation and Physical Activity (PA) of obese patients taking part in a rehabilitation program. Methods: Fourty-nine obese adults (mean age = 52 years, mean BMI = 38.25 kg/m2) attended a 3-week residential intervention. Patients in the Motivation group (n = 24) received a standard care plus SDT-based intervention (i.e., improved supervised PA sessions + a 1-hour motivational session). Patients in the Control group (n = 25) only benefited from standard care. Psychological needs and motivation were measured at baseline, at the end of the program and one month after. PA was measured at baseline and one month after the end of the program. Repeated measures ANOVAs were performed to compare the evolution of the variables between groups. Results: The results indicated that participants from both groups displayed significant changes in their perceived autonomy, relatedness, intrinsic motivation and integrated regulation between the beginning and the end of the program. Next, participants from both groups showed a decrease in perceived relatedness between the end of the program and one month after. Last, the participants from the Motivation group reported greater increase of their PA scores between the beginning of the program and one month after as compared to those in the Control group. Conclusions: Obesity interventions should integrate motivational components in order to promote behavior maintenance after programs have ended.

Vitamin D Supplementation Improves Cognitive Function Through Reducing Oxidative Stress Regulated by Telomere Length in Older Adults with Mild Cognitive Impairment: A 12-Month Randomized Controlled Trial

2020 ◽  
Vol 78 (4) ◽  
pp. 1509-1518
Author(s):  
Tong Yang ◽  
Hualou Wang ◽  
Ying Xiong ◽  
Chong Chen ◽  
Keran Duan ◽  
...  
Keyword(s):  
Public Health ◽  
Oxidative Stress ◽  
Older Adults ◽  
Vitamin D ◽  
Placebo Group ◽  
Cognitive Function ◽  
Repeated Measures ◽  
Controlled Trial ◽  
Vitamin D Supplementation ◽  
Repeated Measures Anova

Background: Cognitive decline in older adults is a serious public health problem today. Association between vitamin D supplementation and cognition remains controversial. Objective: To determine whether a 12-month vitamin D supplementation improves cognitive function in elderly subjects with mild cognitive impairment (MCI), and whether it is mediated through the mechanism in which telomere length (TL) regulate oxidative stress. Methods: This was a double-blind, randomized, placebo-controlled trial in Tianjin, China. Participants were all native Chinese speakers aged 65 years and older with MCI. 183 subjects were randomized to an intervention group (vitamin D 800 IU/day, n = 93) or a placebo group (the matching starch granules, n = 90), and followed up for 12 months. Tests of cognitive function and mechanism-related biomarkers were evaluated at baseline, 6 months, and 12 months. Results: Repeated-measures ANOVA showed substantial improvements in the full scale intelligence quotient (FSIQ), information, digit span, vocabulary, block design, and picture arrangement scores in the vitamin D group over the placebo group (p < 0.001). Leukocyte TL was significantly higher, while serum 8-OXO-dG, OGG1mRNA, and P16INK4amRNA revealed greater decreases in the vitamin D group over the placebo group (p < 0.001). According to mixed-model repeated-measures ANOVA analysis, vitamin D group showed a significant enhancement in the FSIQ score for 12 months compared with the control (estimate value = 5.132, p < 0.001). Conclusion: Vitamin D supplementation for 12 months appears to improve cognitive function through reducing oxidative stress regulated by increased TL in order adults with MCI. Vitamin D may be a promising public health strategy to prevent cognitive decline.

scholarly journals Effects of the Preschool-Based Family-Involving DAGIS Intervention Program on Children’s Energy Balance-Related Behaviors and Self-Regulation Skills: A Clustered Randomized Controlled Trial

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2599 ◽  
Author(s):  
Carola Ray ◽  
Rejane Figuereido ◽  
Henna Vepsäläinen ◽  
Reetta Lehto ◽  
Riikka Pajulahti ◽  
...  
Keyword(s):  
Physical Activity ◽  
Randomized Controlled Trial ◽  
Energy Balance ◽  
Repeated Measures ◽  
Screen Time ◽  
Controlled Trial ◽  
Self Regulation ◽  
Control Group ◽  
Randomized Controlled ◽  
Multicomponent Intervention

The study examines the effects of a preschool-based family-involving multicomponent intervention on children’s energy balance-related behaviors (EBRBs) such as food consumption, screen time and physical activity (PA), and self-regulation (SR) skills, and whether the intervention effects differed among children with low or high parental educational level (PEL) backgrounds. The Increased Health and Wellbeing in Preschools (DAGIS) intervention was conducted as a clustered randomized controlled trial, clustered at preschool level, over five months in 2017–2018. Altogether, 802 children aged 3–6 years in age participated. Parents reported children’s consumption of sugary everyday foods and beverages, sugary treats, fruits, and vegetables by a food frequency questionnaire, and screen time by a 7-day diary. Physical activity was assessed by a hip-worn accelerometer. Cognitive and emotional SR was reported in a questionnaire by parents. General linear mixed models with and without repeated measures were used as statistical methods. At follow-up, no differences were detected in EBRBs or SR skills between the intervention and control group, nor did differences emerge in children’s EBRBs between the intervention and the control groups when stratified by PEL. The improvement in cognitive SR skills among low PEL intervention children differed from low PEL control children, the significance being borderline. The DAGIS multicomponent intervention did not significantly affect children’s EBRBs or SR. Further sub-analyses and a comprehensive process evaluation may shed light on the non-significant findings.

scholarly journals Effects Of Educational Intervention Based On Integrated Social Marketing Approach On Regular Physical Activity of Female Students: A Study Protocol For A Cluster Randomised Trial

2021 ◽  
Author(s):  
Babak Moeini ◽  
Forouzan Rezapur-Shahkolai ◽  
Rashid Heidarimoghadam ◽  
Leili Tapak ◽  
Azam Geravandi
Keyword(s):  
Physical Activity ◽  
Clinical Trials ◽  
Social Marketing ◽  
Educational Intervention ◽  
Low Income ◽  
Primary Schools ◽  
Controlled Trial ◽  
Randomised Trial ◽  
Regular Physical Activity ◽  
Control Group

Abstract Background: A sedentary lifestyle is recognized as a risk factor for chronic diseases. The aim of this study was to identify the factors related to regular physical activity in adolescents. Also design effective social marketing interventions on these factors in primary schools in Kermanshah (western Iran).Method: This study will be a parallel randomised controlled trial (RCT) conducted at a secondary school in Kermanshah. This protocol conforms to the Consolidated Standard of Reporting Trials (CONSORT) Statement and is registered at the Iranian Registry of Clinical Trials (IRCT:IRCT20200621047858N1). This research will be conducted in three phases that correspond to the first to seventh stages of the social marketing operational model, i.e. the SMART model. Given that this study is a three-stage study, an interventional study will be conducted to investigate the effect of educational intervention on regular physical activity behavior among female junior high school students. In this study, we will have an intervention group and a control group. In each area (north and south of the city), using the division by the school education department, is divided into three categories (rich, middle-income and low-income) and a simple random method is selected from each category of one school (3 intervention schools and 3 control schools. The sample size required for the intervention and control group is calculated as 108 people. Individuals are evaluated for regular physical activity according to the stages of behavior change before and after the intervention.Trial registration: IRAN Clinical Trials Register IRCT20200621047858N1 (date of registration: 2020/7/25 randomized controlled trial registered).Ethics approval: IR.UMSHA.REC.1398.952

scholarly journals Parent BMI Increase 2 to 5 Years Post-study Related to Change in Age but Independent of Other Sociodemographics, Health Behavior, and Study Engagement (P16-001-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Brenda Abu ◽  
Barbara Lohse ◽  
Leslie Cunningham-Sabo
Keyword(s):  
Physical Activity ◽  
Health Behavior ◽  
Low Income ◽  
Repeated Measures ◽  
Controlled Trial ◽  
Family Intervention ◽  
Activity Level ◽  
Nutrition Intervention ◽  
Post Intervention ◽  
Age Change

Abstract Objectives Characterize parent (P) weight change 2–5 y post participation in Fuel for Fun (FFF) a controlled trial of a school and family intervention focused on culinary and physical activity experiences for 4th grade youth. Methods P who had participated with their 4th grader in FFF were recruited via email to enroll in a follow-up (FFF-FU) assessment. FFF-FU survey set included measures from the original study and new items pertinent to P of adolescents. Physical activity was measured with the IPAQ; low income was denoted as using an income-based program or worry about money for food. Height, weight, age in FFF and FFF-FU were self-reported. Perimenopausal age included 47 y within BL and FFF-FU. Youth in FFF cohorts 1 and 4 were controls and cohorts 2 and 3 included the multi-component intervention. P were enrolled in 1 of 4 treatments varying in type and intensity. FFF and FFF-FU data were collected online using the Qualtrics platform. FFF P completed surveys at baseline (BL), post-intervention, and 4 months post-study. FFF-FU data were collected spring 2018, about 2 to 5 years years post-BL. Data were analyzed with repeated measures controlling for BL or FFF-FU sociodemographics, engagement, health behaviors. Results Of the 418 FFF P, 127 completed FFF-FU surveys (mean age 42.5 6.0 y) with 115 providing weight and height. FFF-FU sample was female (88%), white (84%), active (44% high activity), educated (69% college degree or higher), but had lower BMI and fewer with low income than FFF P. Of FFF-FU providing heights/weights at the 4 assessments, mean (SE) BMIs were 24.2 (0.5), 24.4 (0.5), 24.6 (0.6) and 25.7 (0.6) respectively. Change in BMI was significant after controlling for age, stress, ethnicity, sex, physical activity level, P treatment and engagement, but not when BL to FFU-FU change in age or perimenopausal age were controlled. The significantly greater increase in BMI for P of intervention youth than controls persisted when controlling for sociodemographic and health behavior findings, but not when BL to FFF-FU age change, perimenopausal age or activity level were controlled. Conclusions Significant weight gain by P of youth in a nutrition intervention 2 to 5 years post-study was unrelated to stress, ethnicity, activity level, income, but was related to the FFF-FU age change from BL and perimenopausal age. Funding Sources NIFA.

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