Publications by authors named "Ryan Rhodes"

Purpose: To conduct a formative evaluation of ChatEx to increase and maintain exercise among older cancer survivors.

Methods: ChatEx is a blended intervention involving 12 weeks of theory-based instant messages and two in-person training sessions. This pilot study comprises three phases: (1)intervention development: developing a message library reviewed by experts; (2)message library pretesting: exploring the views of older cancer survivors toward the message library and making modifications (n = 20); and (3)intervention pilot testing: piloting the ChatEx using a non-randomized quasi-experimental design using quantitative and qualitative methods among cancer survivors aged 65+ who do not meet current exercise guidelines and have completed treatment (n = 40).

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Purpose: Little research has focused on the potential impact that the environment plays in shaping cardiac rehabilitation (CR) patient sedentary time (ST) and physical activity (PA). To address this, the current study generated daily path areas (DPAs) based on the locations they visited during and after they completed CR.

Methods: Patients in CR (n = 66) completed a survey and wore an accelerometer and Global Positioning System receiver for 7 days early (first month), late (last 2 weeks of program), and 3 months after completing CR.

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Background: Preteen girls of lower socioeconomic position are at increased risk of physical inactivity. Parental support, particularly from mothers, is positively correlated with girls' physical activity levels. Consequently, family-based interventions are recognized as a promising approach to improve young people's physical activity.

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Background: Parents with children in the home may benefit considerably from sport participation, given the high levels of physical inactivity and psychosocial distress among this group. The purpose of this study was to evaluate the effectiveness of team sport participation on mental health (primary outcome) as well as other secondary psychosocial outcomes compared to an individual physical activity condition and a "date night" control condition among parents with young children (under the age of 13).

Methods: A three-arm parallel design single blinded randomized controlled trial compared the team sport (n = 58), individual physical activity (n = 60), and control condition (n = 66) over three months.

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Introduction: Adolescence represents a critical developmental period, with changes in emotional regulation capacities influencing physical and mental health. With less than 6% of Canadian youth currently meeting the 24-hour movement guidelines for physical activity, sleep and sedentary behaviour, there is an urgent need to understand the potential association between movement behaviours, physical literacy, emotional regulation and mental health during adolescence. Additionally, there is a need to better understand these associations among equity-deserving groups.

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Background: Social climate refers to the general feelings, norms, and opinions in a society and may be affected by experiences of discrimination. This study examined whether experiences of discrimination are associated with the social climate of physical (in)activity and support for policies addressing dual benefits of physical activity (PA) and climate change.

Methods: Data from the 2023 Social Climate Survey were used (n = 1950; ≥18 y).

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Objective: A promising strategy to increase population physical activity is through promotion of dog walking. Informed by multi-process action control and nascent dog-walking theory, we examined the effectiveness of a 3-month technology-based (dog tracker) 2-arm randomised controlled dog-walking intervention to increase dog-owner daily physical activity in the general community in Sydney, Australia.

Results: 37 participants were allocated to the intervention group (mean age = 43.

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Background: The social environment is important to consider for effective promotion of movement behaviors like increased physical activity (PA) and reduced sedentary behavior (SB); yet, it is less often considered than individual and built environments. One way to advance social environment research is to develop system maps, an innovative, participatory, action-oriented research process that actively engages stakeholders to visualize system structures and explore how systems "work." The purpose of this research was to develop PA and SB system maps of the social environment embedded within the core/nuclear family system.

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Physical activity identity represents an important determinant of sustained physical activity behavior. The purpose of this investigation was to examine whether intention, behavioral regulation, and moderate-to-vigorous physical activity (MVPA) behavior explain significant variation in physical activity identity across time. Using a repeated measures observational design, lower-active adults new or returning to physical activity participation ( = 66) completed measures of study variables every three weeks over the course of a nine-week period (four assessments total).

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This randomized controlled trial investigated the impact of a brief session of group-based running on feelings of energy and fatigue, comparing exercise in a local nature reserve versus an outdoor built environment, and a sedentary control condition. Sixty-six physically active university students participated, with 56 providing full data for each time point. Consistent with previous research, participants in both exercise groups reported significantly increased energy and decreased fatigue compared to those in the sedentary control group.

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Background: Regular engagement in moderate-to-vigorous physical activity (MVPA) during childhood yields a myriad of health benefits, and contributes to sustained MVPA behaviors into adulthood. Given the influence of parents on shaping their child's MVPA behaviour, the family system represents a viable target for intervention. The purpose of this study is to compare the effects of two intervention conditions designed to increase child MVPA: (1) A standard education + planning intervention providing information about benefits, action planning, and coping planning; and (2) An augmented physical activity education + planning intervention that includes the components of the standard intervention, as well as a focus on family identity promotion and developing as an active member of the family.

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Objective: This study was designed to investigate the effects of individual, dyadic, and collaborative planning on moderate-to-vigorous physical activity (MVPA; primary outcome) and energy-dense food intake (secondary outcome) in dyads of parents and their 9-15-year-old children. Individual planning reflects an "I-for-me" planning of one person's behavior. Collaborative ("we-for-us") planning refers to joint planning of both dyad members' behavior, whereas dyadic ("we-for-me") planning involves joint planning of only the target person's behavior.

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Objective: Examine the feasibility and acceptability of a social identity-informed, online delivered, running and walking group program to support low-active post-secondary students' exercise behavior and well-being during the COVID-19 pandemic.

Methods: A two-arm, non-blinded, parallel pilot randomized controlled trial was conducted whereby low-active post-secondary students at a Canadian university were equally randomized to an online delivered running/walking group program or an attention control condition. Primary feasibility and acceptability outcomes included program interest, study enrolment and retention, questionnaire completion, program attendance, program satisfaction, and affective exercise attitudes.

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Article Synopsis
  • The study examined a web-based health intervention aimed at increasing physical activity among adults affected by COVID-19 social distancing.
  • The intervention showed high feasibility with a 96% recruitment rate, 84% retention rate, and positive satisfaction scores from participants.
  • Results indicated trends toward improved physical activity levels and mental health, suggesting a potential for larger-scale research in the future.
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Background: This study aims to investigate the trends and ecological determinants of physical activity among U.S. children and adolescents during the 2019-2021 period, encompassing the COVID-19 pandemic's onset and subsequent years.

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Unlabelled: Early career professionals (ECPs) are a critical target for physical activity (PA) promotion. Affect contributes to an established PA intention-behaviour gap and is pertinent among ECPs.

Objective: The purpose of this study was to examine the feasibility and acceptability of a web-based intervention and explore the effects on secondary outcomes (moderate-to-vigorous PA (MVPA), emotion regulation, multi-process action control constructs).

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Background: Eighty one percent of adolescents do not meet the recommended physical activity (PA) guidelines with levels of physical activity declining steadily with age and more pronounced in girls of low socioeconomic position (SEP). Furthermore, early adolescence is a time when the rate of decline in PA is most severe amongst girls, placing them at an increased likelihood of developing negative health outcomes associated with physical inactivity. In response, the aim of this study was to explore low-SEP pre-teen girls' experiences of being physically active and to understand their perceptions of the individual, social and environmental factors that influence these experiences.

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Introduction: Twenty-four-hour movement behaviors: moderate-to-vigorous physical activity (MVPA), light physical activity (LPA), sedentary behavior (SB), and sleep are crucial factors affecting older adults' health. Using a compositional data analysis approach, this study examined the associations of time spent in these four movement behaviors with cardiometabolic health, physical fitness, and mental health among older adults. Furthermore, this study identified the estimated changes in aforementioned health outcomes by reallocating SB time to other movement behaviors.

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Background: It is known that 24-hour movement behaviors, including physical activity (PA), sedentary behavior (SB), and sleep, are crucial components affecting older adults' health. Canadian 24-hour movement guidelines for older adults were launched in 2020, emphasizing the combined role of these 3 movement behaviors in promoting older adults' health. However, research on the prevalence and correlates of guideline adherence and its associations with health-related outcomes is limited, especially among Chinese older adults.

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Objective: Theoretical frameworks are essential for understanding behaviour change, yet their current use is inadequate to capture the complexity of human behaviour such as physical activity. Real-time and big data analytics can assist in the development of more testable and dynamic models of current theories. To transform current behavioural theories into more dynamic models, it is recommended that researchers adopt principles such as control systems engineering.

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Background: The spread of Covid-19 and resultant infection prevention strategies have disturbed the life routine of Chinese young adults, led to reduced physical activity (PA), prolonged screen time (ST) and inadequate sleep duration (SP), and made immense influence on their mental health (MH) and quality of life (QoL). E-Health literacy (EHL) can enable citizens to use available online information to respond to the highly complex information environment and make appropriate health decisions.

Objective: This study aims to examine associations between adhering to 24-h movement (24HM) guidelines and MH and QoL among young adults, as well as to identify any mediating or moderating role of EHL in these associations.

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Article Synopsis
  • The study investigated how effective virtual reality fitness games, specifically the "Flow" and "Boxing" modes of Supernatural, are for energy expenditure by measuring oxygen consumption using indirect calorimetry in young, active individuals.
  • Results showed that both gameplay modes are classified as vigorous activities, with Flow averaging 8.2 METs and Boxing 7.6 METs, indicating high energy expenditure.
  • Participants reported improved mood states after gameplay, feeling more active and lively, while males exhibited higher oxygen consumption during both modes, though no significant differences between sexes were found otherwise.
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Food system transformation requires a better understanding of the negative and positive externalities involved in food production and consumption. Although negative externalities have received substantial attention, positive externalities have been largely overlooked. True Cost Accounting (TCA) is an economic assessment aimed at accounting for externalities in food systems.

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Background: One third of college students do not achieve aerobic activity levels recommended for physical and mental health. The web-based "I Can Be Active!" intervention was designed to help college students increase their physical activity. The intervention was grounded in the Multi-Process Action Control (M-PAC) framework which emphasizes translating intention into sustainable action.

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Objective: The menstrual cycle often presents barriers to participation in daily life activities, including physical activity (PA), which is a cornerstone of health and well-being. The purpose of this systematic review was to explore and summarize the impact of symptoms, experiences, and perceptions of the menstrual cycle on recreational PA (RPA), including sports, exercise and active recreation, in the general population.

Methods: Six databases were searched for studies that investigated the impact of the menstrual cycle on PA among individuals who were cyclically menstruating, healthy, and not involved in professional sports training.

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