Scott Rollo

• PhD
• Canadian Forces Morale and Welfare Services

Background Parents’ own movement behaviours can influence those of their children, thus contributing to the health and well-being of the whole family. Parents experienced a shift in work and childcare responsibilities during the COVID-19 pandemic. This may have led to a reduction in their healthy movements. This study examined the prevalence and co...

The effects of adding choice architecture to a theory-based (Health Action Process Approach; HAPA) sedentary intervention remain unknown. To investigate whether choice architecture enhances a theory-based sedentary behaviour reduction intervention in home-based office workers. A 4-week HAPA-based intervention was conducted in London, Canada. Choice...

Office workers who transitioned to working from home are spending an even higher percentage of their workday sitting compared with being “in-office” and this is an emerging health concern. With many office workers continuing to work from home since the onset of the COVID-19 pandemic, it is imperative to have a validated self-report questionnaire to...

Mindsets that people hold regarding activity adequacy play an integral part in various health outcomes. Yet, little is known about the relationship between the mindset one has about their sedentary behaviour levels and psychological stress. As such, the present study sought to understand if adults’ perceptions of themselves as compared to others of...

Objective: This investigation evaluated the effectiveness of a Health Action Process Approach (HAPA) based planning intervention augmented with text messages to reduce student-related sitting time (primary outcome) and increase specific non-sedentary behaviours. Relationships between the HAPA volitional constructs and sedentary and non-sedentary be...

Background Existing sedentary behaviour guidelines for children and youth target overall sedentary behaviour and recreational screen time, without any specific recommendations regarding school-related sedentary behaviours (i.e., sedentary behaviours performed during the school day, or within the influence of school). The purpose of this paper is to...

Background The purpose of this systematic review was to examine the associations between school-related sedentary behaviours and indicators of health and well-being in children and youth (~ 5–18 years) attending school. Methods This review was conducted to inform the development of School-Related Sedentary Behaviour Recommendations. Peer-reviewed,...

Background: This study examined associations between sociodemographic factors and meeting versus not meeting the new Canadian 24-Hour Movement Guidelines recommendations. Methods: The study is based on 7651 respondents aged 18-79 years from the 2007 to 2013 Canadian Health Measures Survey, a nationally representative, cross-sectional survey. Soc...

Background 24-hour movement behaviors, including moderate-to-vigorous physical activity (MVPA), sedentary time (ST), and sleep duration, have important implications for health across the lifespan. However, no studies exist that have examined the integration of these 24-hour movement behaviors in Latin America. The purpose of this study was to exami...

Background: The Canadian 24-Hour Movement Guidelines for Adults (18-64 years and 65 years or older) were launched in October 2020 and provide evidence-based recommendations for physical activity, sedentary behaviour and sleep. The purpose of this study was to examine whether meeting the 24-Hour Movement Guidelines overall, and different combinatio...

Objective: This secondary analysis study examined the effects of a 6-week theory-based planning and mHealth text message intervention targeting workplace sitting time on health-related quality of life and work performance in office workers. Design: Office-working adults (Mage=45.18 ± 11.33 years) were randomised into either a planning + text mes...

Background Cardiorespiratory fitness (CRF), which reflects the overall aerobic capacity of the cardiovascular, respiratory, and muscular systems, is significantly related to health among youth.Objective The aim of this systematic review was to identify health-related criterion-referenced cut-points for CRF among youth aged 5–17 years.MethodsA syste...

Background Musculoskeletal fitness is an excellent functional measure that is significantly related to health among youth. Objective Our objective was to identify health-related criterion-referenced cut-points for musculoskeletal fitness (MSF) among youth. Methods A systematic search of two electronic databases (MEDLINE and SPORTDiscus) was condu...

High levels of occupational sitting is an emerging health concern. As working from home has become a common practice as a result of COVID-19, it is imperative to validate an appropriate self-report measure to assess sitting in this setting. This secondary analysis study aimed to validate the occupational sitting and physical activity questionnaire...

This study determined if meeting the Canadian 24-Hour Movement Guidelines recommendations are associated with all-cause mortality. Participants were 3471 adults from the 2005–2006 U.S. National Health and Nutrition Examination Survey followed for mortality over 11 years. They were classified as meeting or not meeting recommendations for sleep durat...

The purpose of this study was to examine the associations between self-reported and device-based measures of sedentary behavior (SB) with obesity markers in adults from Latin American countries. Sitting time and total time spent in different SBs were self-reported using two different questionnaires. Accelerometers were used to assess total sedentar...

The purpose of this study was to examine the associations between self-reported and device-based measures of sedentary behavior with obesity markers in adults from Latin American countries. Sitting time and total time spent in different sedentary behaviors were self-reported using two different questionnaires. Accelerometers were used to assess tot...

The purpose of this study was to analyze the agreement between self-reported and device-based sedentary time among eight countries in Latin America. As part of the Latin American Study of Nutrition and Health (ELANS), data were collected from 2524 participants (18–65 years) across eight countries. Participants reported time spent sedentary in diffe...

Background New research suggests that the composition (mix) of movement behaviors within a 24-h period may have important implications for health across the lifespan. Consistent with this integrated movement behavior paradigm, a number of countries across the world have developed and released 24-h movement guidelines for specific age groups. The pu...

Background: Office-working adults represent an at-risk population for high levels of sedentary behaviour (SB), which has been associated with an increased risk for numerous chronic diseases. This study examined the effectiveness of a Health Action Process Approach (HAPA) based planning intervention augmented with tailored text messages to reduce w...

Purpose: The aim of this study was to identify socio-demographic correlates of total and domain-specific sedentary behavior (SB). Methods: Cross-sectional findings are based on 9218 participants (15-65 years) from the Latin American Study of Nutrition and Health. Data were collected between September 2014 and February 2015. Participants reported...

Background: Using the motivational phase of the Health Action Process Approach (HAPA), this study examined whether sedentary behaviour and diabetes information is a meaningful source of motivation to reduce daily sitting time among preintending office workers. Methods: Participants (N = 218) were randomised into HAPA-intervention (sedentary beha...

The purpose of this systematic review was to synthesise and evaluate the literature on the effects of classroom-based dynamic seating interventions on academic-related outcomes, among school-aged children and adolescents. A secondary aim was to examine the effects of interventions on students’ sedentary behaviour and physical activity levels. In Se...

This chapter will foremost summarize the effects of an acute bout of exercise on smoking, specifically the acute effect of exercise on cravings and tobacco withdrawal symptoms (TWS). This chapter will also delve into proposed mechanisms for these effects and present clinical recommendations for implementing acute bouts of exercise as a therapy/inte...

This chapter focuses on the effectiveness of exercise, either alone or in combination with traditional smoking cessation treatments, as a smoking cessation aid.

This review examined the impact of environmental, behavioral, and combined interventions to reduce occupational sedentary behaviour on work performance and productivity outcomes. Productivity outcomes were defined as variables assessing work-related tasks (e.g., typing, mouse), whereas performance outcomes were categorized as any variables assessin...

Introduction: Post-cessation weight gain contributes to smoking relapse, especially for women. Furthermore, excess weight in the form of android or visceral fat is associated with metabolic health problems. For this study, a secondary analysis was conducted in 2015 to determine whether quitting status, achieved through a 14 week supervised exercis...

Context: In sport, the occurrence of an injury is almost inevitable and the rehabilitation process can take a toll on athletes' emotions and contribute to psychological distress. Objective: To examine the effects of heart rate variability biofeedback (HRV BFB) training on pain catastrophizing and the psychological response variables of injured athl...

Background: A number of studies have examined dynamic seating in the classroom as a practical, low-cost, and effective strategy to allow students to accumulate light-intensity physical activity, improve the instructional atmosphere and increase academic performance in students. One outcome of interest associated with student learning and subsequent...

Excessive time spent in sedentary behavior (SB) is associated with numerous health risks. These associations remain even after controlling for moderate-to-vigorous physical activity (PA) and body mass index, indicating that efforts to promote leisure time physical activity alone are insufficient. Cognitive and motivation variables represent potenti...