Short Term, Oral Supplementation with Optimized Curcumin Does Not Impair Performance Improvements Associated with High Intensity Interval Training.

Curcumin may improve athletic performance through a reduction in inflammation following exercise and improve mental states of well-being. The purpose of this investigation was to explore the effects of a 14 day HIIT intervention and oral supplementation with Longvida® optimized curcumin on athletic performance, lactate response, and well-being. Sixteen males and twenty females participated in a double-blinded, randomized, placebo-controlled trial to explore the effects of Longvida(R) optimized curcumin (1.0 g/day) and or a placebo (PLA) taken daily during a 14 day HIIT protocol. Participants were randomized into two groups, then evaluated in three groups, curcumin-fast (CURF), curcumin-slow (CURS) and placebo. Curcumin-fast and curcumin-slow were separated by their 16.1 km cycling time trial performance (TT) with CURF and CURS determined by a TT <30 min and >30 min at the pre intervention time point, respectively. Cycling time-trial performance, blood lactate response, and well-being assessments were determined at pre and post 14 day HIIT intervention time points. Blood lactate was recorded at baseline, 8.01 km, 15.1 km, and 1 min post, and 4 min post of the pre and post intervention TT. Following the internvetion, CONP and CURS experienced with 8.15% and 5.04% improvements in TT performance times, while CURF experienced a 0.57% improvement in TT performance time. No changes were observed with respect to other measures. When curcumin is taken daily in conjunction with 14 days of HIIT on a cycle ergometer, cycling performance in either well trained or more recreationally trained athletes is not impaired. Although the improvements in TT performance were not stasticially significant, they are noteworthy.

The Physical Activity Messaging Framework (PAMF) and Checklist (PAMC): International consensus statement and user guide.

Effective physical activity messaging plays an important role in the pathway towards changing physical activity behaviour at a population level. The Physical Activity Messaging Framework (PAMF) and Checklist (PAMC) are outputs from a recent modified Delphi study. This sought consensus from an international expert panel on how to aid the creation and evaluation of physical activity messages. In this paper, we (1) present an overview of the various concepts within the PAMF and PAMC, (2) discuss in detail how the PAMF and PAMC can be used to create physical activity messages, plan evaluation of messages, and aid understanding and categorisation of existing messages, and (3) highlight areas for future development and research. If adopted, we propose that the PAMF and PAMC could improve physical activity messaging practice by encouraging evidence-based and target population-focused messages with clearly stated aims and consideration of potential working pathways. They could also enhance the physical activity messaging research base by harmonising key messaging terminologies, improving quality of reporting, and aiding collation and synthesis of the evidence.

Dietary Adequacy among Multi-Ethnic Urban Youth in Edmonton: Findings from the Wellness and Health in Youth - Aboriginal and All Communities in Transition NOW (WHY ACT NOW) Project.

OBJECTIVE: The development of obesity and chronic diseases in adulthood often results from a childhood pattern of dietary excesses. This study aimed to identify dietary inadequacies and excesses of multiethnic youth in Edmonton. METHODS: A cross-sectional survey of a convenience sample of 473 multiethnic youth between 11 and 18 years was conducted in 12 schools in Edmonton between October 2013 and March 2014. Data were analyzed to determine for each participant mean daily energy and nutrient intakes, dietary adequacy, and nutrient densities. Participants were divided by self-identified ethnicity (Indigenous, European, African and Middle Eastern, and Asian). RESULTS: For all nutrients examined, the mean percentage of calories from fat was higher among European (31.7%) and Indigenous youth (31.8%) compared to African and Middle Eastern (28.3%) and Asian youth (29.0%), while Asian youth had the highest percentage of calories from protein (17.7%) compared to other ethnic groups (Indigenous = 15.5%; African & Middle Eastern = 16.5%; European = 16.2%). The majority of youth fell below the recommended values for dietary fiber (83.3-92.0%), vitamins D (84.4-90.2%), and E (89.5-92.0%). More than 50% fell below the dietary reference intakes (DRIs) for vitamin A, vitamin B5, calcium, and magnesium; >30% were below the DRI for folate, zinc, and vitamins B6, and C. The diet of girls contained a greater density of fiber compared to boys (9.3 vs. 8.0 g/1000 kcal; p-value = 0.002). CONCLUSIONS: Inadequate dietary intake is evident among the majority of multiethnic youth in Edmonton. There is a need to develop strategies to reduce the burden of poor nutrition status for youth.

Knowledge translation of the Canadian 24-Hour Movement Guidelines for Adults aged 18-64 years and Adults aged 65 years or older: a collaborative movement guideline knowledge translation process.

Establishing a step-by-step process that provides practitioners with a blueprint for translating movement guidelines into action stands to optimize the investment in guideline development, improve guideline promotion and uptake, and ultimately enhance population health. The purpose of this paper is to describe how the Knowledge-to-Action framework and integrated knowledge translation were operationalized to systematically inform our knowledge translation (KT) efforts for the Canadian 24-Hour Movement Guidelines for Adults aged 18-64 years and Adults aged 65 years or older. In October 2018, the need for a KT Process, operating in tandem with the Guideline Development Process, led to the establishment of a KT team with a specific structure and terms of reference. The KT team collaboratively agreed on decision-making principles prior to selecting target audiences to focus their efforts. We undertook formative research to assess the local context and determinants of guideline dissemination and implementation efforts among target audiences. Plans for the subsequent steps and research are outlined. We highlight recommendations and lessons learned for applying the process in other settings. Novelty We outline a collaborative and systematic process and research program for the knowledge translation of movement guidelines. This paper provides an innovative and replicable blueprint to optimize future movement guideline knowledge translation efforts.

Results From the 2019 ParticipACTION Report Card on Physical Activity for Adults.

BACKGROUND: The ParticipACTION Report Card on Physical Activity for Adults is a knowledge exchange tool representing a synthesis of the literature and data available at the national level. The purpose of this paper is to summarize the results of the inaugural 2019 edition. METHODS: Thirteen physical activity indicators, grouped into 4 categories, were graded by a committee of experts using a process that was informed by the best available evidence. Sources included national surveys, peer-reviewed literature, and gray literature such as government and nongovernment reports and online content. RESULTS: Grades were assigned to Daily Behaviors (overall physical activity: D; daily movement: C; moderate to vigorous physical activity: F; muscle and bone strength: INC; balance: INC; sedentary behavior: INC; sleep: B-), Individual Characteristics (intentions: B+), Settings and Sources of Influence (social support: INC; workplace: INC; community and environment: B-; health and primary care settings: C-), and Strategies and Investments (government: B-). CONCLUSIONS: Generally, lower grades were given to behavior-related indicators (eg, overall physical activity) and better grades for indicators related to investments, community supports, and strategies and policies. Research gaps and future recommendations and directions are identified for each indicator to support future practice, policy, and research directions.

Elevated Blood Pressure and Associations with Sodium Intake Among Multiethnic Youth in Edmonton, Canada: Findings from WHY ACT NOW.

INTRODUCTION: This study examined the prevalence of pre-hypertension (PHT) and hypertension (HT) in urban youth, and assessed the effects of sodium intake and obesity on blood pressure (BP) by ethnicity. METHODS: A convenience sample of 557 multiethnic youth, aged 11-23 years, was recruited from 12 schools and institutions in Edmonton, Alberta, Canada. Participants were divided by self-identified ethnicity into four groups (Indigenous, African and Middle Eastern (AME), Asian, and European). RESULTS: Between October 2013 and March 2014, one-on-one interviews were conducted to collect data on demographics, physical activity, diet, and Body Mass Index (BMI). BP was obtained at two different times during the interview and measured a third time in cases of high variability. The standard deviation scores (SDS) of systolic BP (SBP) and diastolic BP (DBP) were used to estimate associations with sodium intake (per 1000 mg/day). Overall, 18.2% and 5.4% of the participants had PHT and HT, respectively. Indigenous and AME participants showed the highest rates of PHT (23.1%). Indigenous and European participants showed higher rates of HT (8.3% and 5.3%, respectively) than other ethnic groups (AME = 4.4%, Asian = 3.9%). There was a positive association between 1000 mg/day increase in sodium intake and SDS of SBP by 0.041 (95% CI 0.007-0.083; p = 0.04) among pre-hypertensive participants. Over 85% of participants exceeded the recommended dietary sodium intake. Mean BMI and dietary sodium intake were higher among pre-hypertensive participants (4219 mg/day) than normotensive (3475 mg/day). CONCLUSIONS: The prevalence of HT varied by ethnicity. High dietary sodium intake was of concern. There is a need for culturally-tailored, population-based interventions to reduce sodium intake.

Acute Effects of a Multi-Ingredient Pre-Workout Supplement On 5-KM Running Performance in Recreationally-Trained Athletes.

The purpose of the present study was to examine the effects of an acute dose of a multi-ingredient pre-workout supplement on 5-km running performance and subjective measures of fatigue. Twenty aerobically-trained, males (n = 10, mean ± SD = 80.8 ± 6.1 kg) and females (n = 10, 64.5 ± 6.6 kg) completed two 5-km running races for time in a double-blind, cross-over fashion. During the first session, subjects were randomly assigned to ingest the supplement or placebo 30 minutes prior to running a 5-km race. The supplement contained multiple ingredients including caffeine anhydrous (150 mg), beta alanine (1.6 g), and arginine alpha-ketoglutarate (AKG) (1.0 g). Subjects also completed a 5-point Likert scale (1 = low, 5 = high) questionnaire to determine feelings of fatigue immediately prior to ingesting the substance (baseline), 30 minutes post-ingestion (immediately pre-race), and 5 minutes post-race. For the second session, subjects ingested the opposite substance (supplement or placebo) and underwent the same testing procedures (including time of day) as the first session. The results indicated there was no significant (p > 0.05) difference in 5-km race time between the supplement (23.62 ± 2.08 min) and placebo (23.51 ± 1.97 min) conditions. For the feelings of fatigue, there were no significant condition × time interactions or main effects for condition, but there were main effects for time. These findings indicated that the pre-workout supplement provided no ergogenic effect on 5-km race time or subjective feelings of fatigue when administered on an acute basis in aerobically-trained individuals.

Prevalence of Known Risk Factors for Type 2 Diabetes Mellitus in Multiethnic Urban Youth in Edmonton: Findings From the WHY ACT NOW Project.

OBJECTIVES: The Canadian Diabetes Risk Assessment Questionnaire (CANRISK) is a validated, evidence-based, self-administered tool to assess the risk for type 2 diabetes mellitus in multiethnic Canadian adults. Identifying individuals at high risk for type 2 diabetes allows early intervention that improves modifiable risk factors. This study examined the risk factors for type 2 diabetes in multiethnic urban youth in Edmonton, Alberta. METHODS: An interviewer-administered questionnaire was developed based on CANRISK variables, such as age, gender, ethnicity, family history of diabetes, medical history of high blood sugar or high blood pressure, anthropometric measurements, physical activity and dietary intake. Between October 2013 and March 2014, data were collected from a convenience sample of 557 (328 girls and 229 boys) multiethnic youth 11 to 23 years of age in 12 institutions in Edmonton, such as public schools, after-school programs and colleges. RESULTS: Participating youth (N=529) with self-identified ethnicity were included in the analyses: 109 Indigenous (20.6%); 96 African and Middle Eastern (18.1%); 129 Asian (24.4%); and 195 European (36.9%). More than 70% of the youth had 2 or more risk factors for type 2 diabetes. The participants were classified as low risk (75.6%; n=400); moderate risk (21.2%; n=112); or high risk (3.2%; n=17), with the highest proportion of moderate- and high-CANRISK score categories (52.7%) found in the Asian youth. Boys (p<0.0001) and Indigenous participants (p<0.001) were more likely to have a greater number of risk factors for type 2 diabetes compared to girls and non-Indigenous youth, respectively. Of the participants, 26.7% (n=141) were overweight or obese, more than 45% of the participants (n=245) were physically inactive, and 17.8% of the participants (n=94) did not consume sufficient amounts of fruits and vegetables to meet daily recommendations. CONCLUSIONS: Almost 25% of the participating multiethnic youth 11 to 23 years of age scored in the moderate or high category of CANRISK. The most prevalent risk factors were ethnicity, followed by physical inactivity, overweight or obesity and low fruit and vegetable consumption. A validated type 2 diabetes screening tool for youth as well as culturally appropriate, evidence-based and multidisciplinary diet and lifestyle interventions aiming to improve modifiable type 2 diabetes risk factors in multiethnic youth, particularly targeting socioeconomically disadvantaged and immigrant children and youth, should be developed, implemented and evaluated.

Consumer physical activity tracking device ownership and use among a population-based sample of adults.

Consumer physical activity tracking devices (PATs) have gained popularity to support individuals to be more active and less sedentary throughout the day. Wearable PATs provide real-time feedback of various fitness-related metrics such as tracking steps, sedentary time, and distance walked. The purpose of this study was to examine the prevalence and correlates of PAT ownership and use among a population-based sample of adults. A representative sample of adults ≥18 years (N = 1,215) from Alberta, Canada were recruited through random-digit dialing and responded to a questionnaire via computer-assisted telephone interviewing methods in summer 2016. Questionnaires assessed demographic and health behaviour variables, and items were designed to assess PAT ownership and usage. Logistic regression analysis (odds ratios) was used to assess correlates of PAT ownership and use. On average, participants (N = 1,215) were 53.9 (SD 16.7) years and 50.1% were female. Of the sample, 19.6% (n = 238) indicated they currently own and use a PAT. Participants who owned a PAT wore their device on average 23.2 days within the past month. Currently owning a PAT was significantly associated with being female (OR = 1.41, CI: 1.10 to 1.82), being <60 years of age (OR = 1.86, CI: 1.37 to 2.53), having at least some post secondary education (OR = 1.88, CI: 1.36 to 2.60), having a BMI ≥25 (OR = 1.52, CI: 1.16 to 1.99), and meeting physical activity guidelines (OR = 1.45, CI: 1.12 to 1.88). Similar correlates emerged for PAT use. Correlates significantly associated with PAT use and ownership included being female, being less than 60 years of age, having a post-secondary education, meeting physical activity guidelines, and being overweight/obese. This is the first study to examine characteristics of PAT ownership and use among Canadian adults.

The effectiveness of workplace interventions to increase physical activity and decrease sedentary behaviour in adults: protocol for a systematic review.

BACKGROUND: A physically active lifestyle plays a preventative role in the development of various chronic diseases and mental health conditions. Unfortunately, few adults achieve the minimum amount of physical activity and spend excessive time sitting. Developing targeted interventions to increase active living among adults is an important endeavour for public health. One plausible context to reach adults is the workplace. This systematic review aims to review the effectiveness of workplace interventions on increasing physical activity and decreasing sedentary behaviour in the workplace. METHODS: An advisory group of practitioners will work in collaboration with the research team to inform the systematic review and knowledge mobilization. Fifteen electronic databases will be searched to identify studies examining the effectiveness of workplace interventions on physical activity and sedentary behaviour. All experimental designs and observational studies (non-experimental intervention studies) meeting the study criteria will be included. Studies examining generally healthy, employed, adult participants will be included for the review. Interventions will focus on increasing physical activity and/or decreasing sedentary behaviour from the individual to policy level. The primary outcome variables will be reported or observed physical activity and/or sedentary behaviour in the workplace. Secondary outcomes will include variables ranging from return on investment to quality of life. Study quality will be assessed for risk of bias following the protocol identified in the Cochrane Handbook for Systematic Reviews of Interventions and supplemented by the guidelines developed by the Cochrane Effective Practice and Organisation of Care group, using RevMan. The quality of the evidence will be assessed using the Grading of Recommendations, Assessment, Development and Evaluation approach. Meta-analyses, forest plots, and harvest plots will be used where appropriate to assess the direction, size, and consistency of the intervention effect across the studies using similar intervention strategies. Follow-up knowledge mobilization activities and products will be developed to support the use of this knowledge in practice. DISCUSSION: This protocol paper describes a systematic review assessing the effectiveness of various types of workplace interventions on increasing physical activity and decreasing sedentary behaviour at work. Collaborating with an advisory group of potential knowledge users throughout the process postulates a greater use and reach of the information gained from this systematic review by knowledge users. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42015019398.

Knowledge, attitudes, and behaviours towards cancer screening in indigenous populations: a systematic review.

Cancer mortality among indigenous peoples is increasing, but these populations commonly under use cancer-screening services. This systematic review explores knowledge, attitudes, and behaviours towards cancer screening among indigenous peoples worldwide. Searches of major bibliographic databases identified primary studies published in English up to March, 2014; of 33 eligible studies, three were cohort studies, 27 cross-sectional, and three case-control. Knowledge of and participation in screening was greater for breast cancer than for other cancers. Indigenous peoples tended to have less knowledge, less favourable attitudes, and a higher propensity to refuse screening than non-indigenous populations. The most common factors affecting knowledge, attitudes, and behaviours towards cancer screening included access to screening, knowledge about cancer and screening, educational attainment, perceived necessity of screening, and age. Greater understanding of knowledge, attitudes, and behaviours towards cancer screening in diverse indigenous cultures is needed so that culturally appropriate cancer prevention programmes can be provided.