EmpowerHER: A Pilot Study to Increase Physical Activity and Strength Through Powerbuilding.

Engaging in empowering exercise develops movement competency (MC) and strength and supports physical health, mental well-being, and quality of life. Powerbuilding combines powerlifting and bodybuilding to increase physical activity (PA), MC, and strength. To our knowledge, powerbuilding has not been explored as an exercise intervention. This pilot study investigated the impact of an eight-week powerbuilding intervention on women's PA, MC, strength, and empowerment. Eighteen women aged 25.1±9.8 with no powerbuilding experience participated in the intervention, meeting three times weekly for one hour. PA and MC were assessed pre- and post-intervention. Three-repetition maximum (3-RM) tests in the squat, bench press, and deadlift were completed in weeks one and eight of the intervention. Data were checked for normality; the Wilcoxon signed-rank test was used for non-normally distributed data. The McNemar test was used to analyze differences in dichotomous variables. Effect size was calculated and interpreted as follows small (r=0.1, d=0.2, ω=0.1), medium (r=0.3, d=0.5, ω=0.3), and large (r=0.5, d=0.8, ω=0.5) Total PA ([t(17)=3.52, p=0.003, d=0.83]) and participants who met the PA guidelines (Z=6.13, p=0.008, ω=0.82) increased significantly from pre- to post-intervention. Participants' MC scores improved significantly from pre- (24.3±3.5) to post-intervention (29.5±2.5; [t(17)=10.04, p<0.001; d=2.37]). Significant increases in strength were observed (squat [Z=-3.73, p<0.001, r=0.88], bench press [Z=-3.73, p<0.001, r=0.88], and deadlift [t(17)=16.41, p<0.001; d=3.87]). Empowerment in exercise scores averaged 56.3±6.6 (on a scale of 5-65). The intervention significantly increased total PA, improved MC, increased strength, and facilitated empowerment. Women's participation in powerbuilding may enhance their quality of life.

Mental health clients' receptiveness to and recommendations for integrating physical activity discussions into therapy: a mixed methods study.

OBJECTIVE: The mental health benefits of physical activity are well-established. Integrating physical activity counseling into therapy would expand the reach of this evidence-based treatment for mental illness. This mixed methods study examined mental health clients' receptiveness and recommendations for effectively discussing physical activity in therapy. METHODS: A diverse sample of U.S. adults in therapy (N = 478) completed a survey that included the open-ended question: What specific recommendations would you have for your therapist to effectively discuss physical activity with you? We conducted a qualitative content analysis to identify their most common recommendations. RESULTS: Most participants indicated they would be comfortable discussing physical activity with their therapist. The content analysis resulted in 26 unique categories; most common recommendations included: provide information about what to do (n = 81), discuss physical activity benefits (n = 63), be understanding and nonjudgmental (n = 49), provide accountability (n = 41), and consider physical/mental health conditions (n = 35). Overarching themes emphasized making mental health central to discussions, tailoring discussions to each client, and reframing physical activity as a feasible, enjoyable activity. CONCLUSIONS: Mental health clients are open to discussing physical activity during therapy if it is approached in a supportive, understanding, and personalized way. Clients' recommendations can inform future professional development for therapists.

Differences in physical activity behaviors between university women from metropolitan, micropolitan, and rural areas.

Objective: Rural and emerging adult women report low physical activity (PA) levels. This study identified differences in current self-reported PA levels and perceived resources among US university women from metropolitan, micropolitan, and rural areas. Participants: Women were ages 18-24 y, full-time students who attended in-person university classes before COVID-19. Methods: They completed an online cross-sectional survey between July-September 2020 collecting demographic, university PA (via IPAQ), and perceived PA resource data. Results: Most participants reported metropolitan area high school (70.4%) and university (92.3%) attendance. Metropolitan participants did less job-related moderate PA during university (0.0 (0.0-360.0) MET-min) than rural (160.0 (0.0-1320.0) MET-min) participants. Metropolitan and micropolitan participants identified more high school community and natural resources than rural participants. Rural participants identified more university campus and community resources than metropolitan participants. Conclusions: University women reported similar levels of PA regardless of the rurality of their high school community.

Are lifestyle behaviors associated with excellent self-rated health among American adolescents? A cross-sectional study.

Excellent self-rated health has been associated with decreased mortality and positive health outcomes in adults. However, less is known about youth populations. The FLASHE study, conducted by the National Cancer Institute, is a cross-sectional survey with publicly available self-reported data. The present study evaluated lifestyle behaviors and their relationship with excellent self-rated health in an adolescent population in the United States utilizing complete FLASHE data from 1250 adolescents (males N=626, mean age=14.5y, SD = 1.61y; and females N=624, mean age=14.4y, SD=1.57y). Logistic regression models were used to analyze associations between lifestyle behavior exposures and the outcome of excellent self-rated health. Lifestyle exposures included: free-time physical activity; sedentary behavior time; beneficial and detrimental food intake; perception of the importance of family meals; meeting sleep duration guidelines, having trouble sleeping, and having a regular bedtime. In addition, potential confounders included weight status, smoking, sex, age, socioeconomic status, and race/ethnicity in adjusted models. Approximately 47% of males (n=295) and 35% of females (n=217) reported having excellent self-rated health. In the fully adjusted model, the frequency of beneficial food intake (OR=1.06, 95%CI=1.02-1.11 for each additional exposure, p=0.004); perception of the importance of family meals (OR=1.88, 95%CI=1.35-2.63, strongly agree vs. not agree, p<0.001); frequency of physical activity in free-time (OR=2.17, 95%CI=1.20-3.92, very often vs. none, p<0.001; ); and had no trouble sleeping (OR=0.42, 95%CI=0.27-0.64, yes vs. no, p<0.001), were significantly associated with excellent self-rated health. These results support the importance of enhancing future efforts to implement salutogenic interventions that address health behaviors to improve health outcomes in adolescents, focusing on everyday living situations and actively promoting health.

Effects of Sedentary Behavior Interventions on Mental Well-Being and Work Performance While Working from Home during the COVID-19 Pandemic: A Pilot Randomized Controlled Trial.

Sedentary behavior negatively impacts mental health, which can decrease employee productivity. Employee mental well-being and work performance may improve with sedentary reduction interventions, especially strategies that include environmental workplace modifications and behavior-changing strategies. However, such interventions have not been examined among employees working remotely during the COVID-19 pandemic. As part of the Stand Up Kansas program, 95 sedentary university employees working from home were randomized into one of four intervention arms: height-adjustable desk provision (Desk Only), online sedentary behavior modification program (Program Only), Desk + Program, or Control. The outcomes were measured at a baseline (November 2020) and following the 12-week intervention (February 2021). Employees reported mood (positive and negative affect), stress, fatigue (duration, interference with activities and severity) and work performance (irritability, focus, work satisfaction, non-work satisfaction and productivity) were measured using established self-report instruments. The effect sizes, by comparing the Control arm to the Desk + Program arm, revealed large improvements in mood (positive affect, d = 1.106). Moderate improvements were also seen in fatigue (duration, d = -0.533, and interference with activities, d = -0.648) and several aspects of work performance (focus, d = 0.702, work satisfaction, d = 0.751, and productivity, d = 0.572). Moderate effect sizes were also seen for positive affect (d = 0.566) and fatigue severity (d = 0.577) among the Program Only arm, whereas no noteworthy effect sizes were observed among the Desk Only arm. Combining an online sedentary behavior modification program with height-adjustable desk provisions appeared to positively affect mental well-being and work performance among remote employees.

Reducing Occupational Sitting While Working From Home: Individual and Combined Effects of a Height-Adjustable Desk and an Online Behavioral Intervention.

OBJECTIVE: This study examined the individual and combined effects of a height-adjustable desk and an online behavioral intervention on sedentary behavior and health among university employees working from home. METHODS: Participants (N = 95) were randomly assigned to one of four conditions: Desk Only, Program Only, Desk + Program, or Control. Desk participants received a height-adjustable desk; program participants received a 12-week web-based intervention. Outcomes measured at baseline and post-intervention included workday sitting and cardiometabolic health outcomes. RESULTS: Reductions in sitting were largest in the Desk + Program condition (-206 min/workday; d = 1.84), followed by the Desk Only condition (-122 min/workday; d = 0.98), and the Program Only condition (-96 min/workday; d = 1.13). There were no significant changes in the health outcomes assessed. CONCLUSIONS: Both a height-adjustable desk and an online behavioral intervention effectively reduced occupational sitting, and a combined approach was most effective.

Effects of the COVID-19 Pandemic on Physical Activity Behavior across Domains and Settings.

COVID-19 restrictions and alterations to daily living (e.g. working from home, caregiving responsibilities) necessitated changes in physical activity (PA) behavior. The purpose of this study was to understand how PA within specific domains and behavior settings changed during the COVID-19 pandemic, as well as the extent to which PA increased or decreased as a function of participants' gender, work location (i.e., home vs. jobsite) and caregiving responsibilities. An e-survey, conducted April-June 2020, examined changes in PA across domains and settings in a national sample of 805 adults. Respondents reported domain-specific increases in household and recreational PA, but decreases in active transportation, occupational PA, and public transportation use. Weekly minutes of PA changed significantly across all behavior settings, with reported increases in home-based, neighborhood, parks/trails, and total PA, and decreases in PA through recreational sports and fitness facilities. Total weekly PA minutes increased by 10.6%. Those with caregiving responsibilities reported increases in household PA and PA frequency, whereas those without caregiving responsibilities were more likely to report increases in sitting. Those working from home reported a larger increase in neighborhood PA. Those working at a jobsite with caregiving responsibilities reported less weekly PA, while those working from home with caregiving responsibilities reported greater weekly PA. The overall increase in weekly PA minutes and ability to adapt to different domains/settings was encouraging. Future interventions should capitalize on domain- and setting-specific changes, while considering work location and caregiving responsibilities to develop innovative PA promotion strategies.

Promoting Strength Training Among Baby Boomers: Message Framing Effects on Motivation and Behavior.

BACKGROUND: Regular participation in strength training significantly enhances older adults' physical and functional health, yet only 14% of adults over age 50 report engaging in strength training at least twice per week. Exercise messages about why and how older adults should engage in strength training could influence their perceptions of and participation in the behavior. This study was designed to promote strength training among adults aged 50-70 and to determine whether the message frame accompanying a brief workout would have an impact on participants' motivation, self-efficacy, and/or physical activity behavior. METHODS: Participants (N = 308) were randomly assigned to one of four message conditions: Easy Intrinsic, Hard Intrinsic, Easy Extrinsic, or Hard Extrinsic. Immediately after completing baseline measures of motivation and physical activity, participants received the recommended strength training workout and corresponding motivational message. They completed follow-up measures of motivation and physical activity 2 weeks later. RESULTS: Controlled regulation was higher at follow-up among participants exposed to an extrinsic message relative to an intrinsic message (F(3,208) = 3.08, p = .03). Strength training (Z = - 5.95, p < .001) and moderate physical activity (Z = - 3.23, p = .001) increased among participants not engaging in regular strength training at baseline. CONCLUSIONS: These results suggest message framing may have a short-term impact on Baby Boomers' physical activity motivation, such that emphasizing extrinsic goals (i.e., weight loss and appearance) may contribute to controlled motivation. However, repeated measurements are needed to determine the longer-term maintenance and influence of these effects.

Acceptability and Feasibility of Best Practice School Lunches by Elementary School-Aged Children in a Serve Setting: A Randomized Crossover Trial.

BACKGROUND: National School Lunch Program (NSLP) standards have improved school lunch dietary quality (DQ), however, further improvements could be made. Acceptability and feasibility of higher DQ are potential barriers. Thus, the purpose is to compare acceptability and feasibility of best practice (BPSL, optimizing DQ) with typical school lunches (TSL, meeting minimum NSLP standards) served separately and concurrently. METHODS: Forty elementary school-aged participants were recruited for a randomized crossover trial. Participants attended three meal conditions (MC) choosing one of two meal types-MC1) BPSL1/BPSL2, MC2) TSL1/TSL2, MC3) BPSL/TSL. Acceptability included taste test surveys, weighted plate waste assessments, and hunger scales. Feasibility included meal cost, time, and skill and equipment requirements. RESULTS: There were no significant differences in total taste test score, average total plate waste, or change in hunger (ps > 0.017) before or after adjusting for covariates. TSL was selected significantly more often in MC3 (TSL = 83.3%, BPSL = 16.7%, p = 0.001). Meal cost (p = 0.783) and skill and equipment requirements were not significantly different between meal types. BPSL required significantly longer preparation time (TSL = 60 ± 25 min, BPSL = 267 ± 101 min, p = 0.026). CONCLUSIONS: Results indicate few differences in acceptability and feasibility between BPSL and TSL. This study could inform decision and policy-makers seeking to improve school lunch DQ and acceptance of higher DQ meals.

Workplace Sedentary Behavior and Productivity: A Cross-Sectional Study.

Reducing sedentary behavior in the workplace has become an important public health priority; however, some employers have expressed concerns regarding the potential for reduced productivity if employees are not seated while at work. Therefore, the aim of this study was to determine the relationship between workplace sedentary behavior (sitting time) and work productivity among full-time office-based employees, and further to investigate other potential factors associated with productivity. A 19-item online self-report survey was completed by 2068 government employees in Kansas. The survey assessed workplace sedentary behavior, work productivity, job satisfaction, and fatigue. Overall, office workers reported high levels of sedentary time (mean > 78%). The primary results indicated that sitting time was not significantly associated with productivity (ß = 0.013, p = 0.519), but job satisfaction and fatigue were positively (ß = 0.473, p < 0.001) and negatively (ß = -0.047, p = 0.023) associated with productivity, respectively. Furthermore, participants with the highest level of sitting time (>91% of the time) reported lower job satisfaction and greater fatigue as compared with the lowest level of sitting time (<75% of the time). Taken together, these results offer promising support that less sitting time is associated with positive outcomes that do not seem to come at the expense of productivity.

InDependent but not Alone: A Web-Based Intervention to Promote Physical and Mental Health among Military Spouses.

BACKGROUND: Military spouses must cope with multiple threats to their physical and mental health, yet few interventions have been developed to promote health in this population. METHODS: For this quasi-experimental study, military spouses (N = 231) received a standard educational intervention or an interactive, theory-based intervention; both were delivered online and lasted 10 weeks. The educational intervention directed participants to content on the existing website, Operation Live Well. The interactive intervention was based on Self-Determination Theory, delivered weekly content via podcasts, and encouraged participants to complete weekly challenges to improve physical activity, diet, and mental health. Linear mixed effects models were used to examine self-reported changes in stress, anxiety, depression, loneliness, self-esteem, physical activity, and diet from pre- to post-intervention. RESULTS: Significant improvements were observed for all mental health outcomes, total physical activity, and sugar consumption. However, there were no significant group by time interaction effects. CONCLUSIONS: Web-based interventions may promote positive changes in mental health and health behaviours among military spouses. In this study, an interactive theory-based intervention was no more effective than an information-based intervention. Future studies should aim to determine the minimum "dose" needed to elicit meaningful changes in this population.

Why and How Should I Exercise? A Content Analysis of Popular Magazines.

Objectives: In this study, we investigated how exercise is portrayed in popular, non-fitness focused magazines targeting various audiences. Methods: Ten popular magazines were selected based on target audience (Teens, Young Adults, Family, Middle-Aged Adults, Older Adults). Ten digital articles from each magazine's health/fitness section were coded for the primary reason to exercise, the frequency, intensity, time, and type of exercise recommended, and whether their recommendations were evidence-based. Frequencies were calculated by target audience. Results: The primary reason for exercise differed by audience, with appearance and fitness empha- sized by magazines targeting younger audiences, and mental health/quality of life emphasized in magazines targeting older adults. Over half of the articles described exercises that should be completed 2x-3x/week for <10 minutes. Articles frequently recommended circuit workouts that could be completed at moderate or self-selected intensity. Only 10% of articles cited peer- reviewed evidence. Conclusions: Results showed popular magazines often represent exercise as something that can be completed in a short time frame with meaningful benefits. However, an overemphasis on appearance in young adults is apparent, which could undermine intrinsic mo- tivation and behavior. Improved communication between researchers and popular magazines is needed to promote sharing of credible, evidence-based exercise content with the public.

Is a general or specific exercise recommendation more effective for promoting physical activity among postpartum mothers?

This comparative effectiveness trial examined the effects of a behavior change intervention supplemented by a general or specific exercise recommendation on physical activity among postpartum mothers. Participants ( N = 49) attended three workshop sessions that provided the exercise recommendation and taught self-regulatory skills. Physical activity, self-efficacy, planning, and barriers were assessed at baseline, post-intervention, and 6-month follow-up. Self-reported physical activity increased significantly in both groups ( p < .001), but the increase was larger in the general condition ( p = .03). Both groups reported increased planning and decreased barriers. Postpartum mothers may benefit from interventions that teach strategies for overcoming barriers while allowing them to choose preferred activities.

Goals Matter: Exercising for Well-Being But Not Health or Appearance Predicts Future Exercise Among Parents.

BACKGROUND: Many parents are insufficiently active. Further research is needed to understand the goals that drive sustained exercise participation among parents. The purpose of this study was to use self-determination theory derived constructs to examine the relationship between parents' exercise goals and their autonomous motivation, controlled motivation, and exercise behavior across 1 year. METHODS: Mothers (n = 226) and fathers (n = 70) of children less than 16 years completed the Exercise Motivations Inventory-2 and, 1 year later, the Behavioral Regulation in Exercise Questionnaire-2 and Godin Leisure-Time Exercise Questionnaire. Linear mixed effects models were used to examine the longitudinal relationships between exercise goals and autonomous motivation, controlled motivation, and leisure-time exercise. RESULTS: All goals except weight management were significantly associated with autonomous motivation, whereas only weight and appearance goals predicted controlled motivation. Exercising for stress management and revitalization, but not health- or appearance-related goals, was significantly related to exercise behavior over 1 year. CONCLUSIONS: Only goals related to immediate affective outcomes were associated with both autonomous motivation and exercise behavior over time. These findings support recent calls to "rebrand exercise" as a means to improve daily well-being. Such goals may drive parents to prioritize exercise because they value the immediate benefits it provides.

Many Kansas Worksites Offer Few Interventions to Reduce Occupational Sedentary Behavior.

The purpose of this study was to identify the extent to which sedentary behavior interventions are being implemented in Kansas worksites. The WorkWell KS Physical Activity Assessment was administered online to 111 worksites across Kansas from October 2016 through April 2018. Each worksite identified a point of contact to complete the worksite-level assessment. Four of the WorkWell KS Physical Activity Assessment's items assessed interventions that may reduce employees' sedentary behavior: offering point-of-decision prompts to reduce employees' sedentary behavior, offering a program for employees to reduce their sedentary time at work, having an organizational norm that allows employees to stand, stretch, and/or move during meetings at least every 30 minutes, and offering standing desks. All 111 worksites that participated in the WorkWell KS Physical Activity Workshop completed the WorkWell KS Physical Activity Assessment, resulting in a 100% response rate. Most worksites (59%, n = 65) reported offering no information, program, policy, or environmental change interventions aimed to reduce sedentary behavior. The most commonly reported intervention offered by worksites to reduce employees' sedentary behavior was standing desks (32%, n = 35). Overall, participating worksites reported implementing a few interventions that are designed to reduce sedentary behavior.

"Everything else comes first": a mixed-methods analysis of barriers to health behaviors among military spouses.

BACKGROUND: Military spouses are integral to the health of their families, but have demonstrated elevated levels of stress, depression, and anxiety. Participating in health behaviors such as physical activity and healthy eating may have a positive impact on spouses' physical and mental health, but emerging evidence suggests spouses' participation in these behaviors is scarce. Thus, the purpose of this study was to examine the most frequently reported barriers to health behaviors among military spouses. METHODS: Military spouses were recruited to complete surveys (N = 230) or participate in focus group sessions (N = 22). On the surveys, participants indicated up to 3 of their most frequent barriers to physical activity, diet, social connection, and stress management. Responses were coded and summed to identify the most commonly reported barriers to each health behavior. Subsequently, focus group sessions were conducted to gain a more in-depth understanding of the challenges military spouses face when trying to maintain a healthy lifestyle. Focus group transcripts were coded using thematic data analysis to identify the most frequently discussed barriers for each behavior. RESULTS: On the surveys, lack of time was the most prevalent barrier for physical activity, social connection, and stress management, and the second most prevalent barrier for diet. Financial concerns were the most prevalent barrier to maintaining a healthy diet. Barriers related to parent/family responsibilities were commonly reported across all health behaviors. During the focus group sessions, the transient military lifestyle was reported to have a significant impact on all of the health behaviors. Other military-related stressors including deployments and the necessity to "do it all" alone were frequently discussed. Many participants exhibited rigid definitions of what "counts" as exercise or health eating. Overall, participants reported sacrificing participation in health behaviors to attend to other priorities. CONCLUSIONS: Military spouses reported numerous barriers to health behaviors that made it difficult for them to prioritize their own health and well-being. Although some of the barriers reported were similar to barriers reported by civilians, unique stressors associated with military life further impeded participation in health behaviors. These findings can be used to inform future health promotion interventions for military spouses.

Does dietary intake change during an intervention to reduce sedentary behavior and cardiovascular disease risk? A randomized comparative effectiveness trial.

BACKGROUND: Evidence from physical activity interventions suggests that women, in particular, may overcompensate for exercise energy expenditure by increasing caloric intake. Sedentary behavior and poor dietary quality are independent risk factors for many major chronic diseases, including cardiovascular disease (CVD). The primary purpose of this study was to determine whether insufficiently active women, accumulating less than 60 min per week of moderate-to-vigorous physical activity, alter caloric intake or dietary quality when participating in an 8-week intervention to reduce sedentary behavior and CVD risk. A secondary aim was to determine whether the two treatment groups differed from one another in dietary intake while participating in the intervention. METHODS: Insufficiently active women (n = 49) working full-time sedentary jobs were randomized to one of two treatment groups to reduce sedentary behavior during the workweek: short-break (1-2 min breaks from sitting every half hour, SB), or long-break (15 min breaks from sitting twice daily, LB). Three-day food records were collected at baseline, week 4 and week 8. Dietary quality was assessed using the Alternative Healthy Eating Index 2010 (AHEI-2010). Risk factors for CVD were assessed at baseline and week 8. RESULTS: For all participants, average caloric intake decreased significantly from baseline to week 8 by approximately 12% (∆ = - 216.0 kcals, p = 0.003). Average caloric intake decreased significantly over time for the SB group (∆ = - 369.6 kcals, p = 0.004), but not the LB group (∆ = - 179.5 kcals, p = 0.17). There was no significant difference between SB and LB groups with regard to calories from baseline to week 8 (F = 0.51, p = 0.48). Total AHEI-2010 scores did not decrease significantly for all participants (∆ = - 4.0, p = 0.14), SB (∆ = - 5.2, p = 0.16), or LB groups (∆ = - 4.5, p = 0.67). CONCLUSIONS: Following an 8-week intervention to reduce sedentary time, insufficiently active women decreased caloric intake over time, however there were no differences between SB and LB groups. In all participants, dietary quality was not altered over time. Future studies should explore sedentary reduction interventions compared to physical activity interventions as a means to create negative energy balance, as frequent sedentary breaks may be effective for improving health outcomes in women. TRIAL REGISTRATION: ClinicalTrials.gov registration number NCT02609438, retrospectively registered November 20, 2015.

Effects of an Intervention to Reduce Sitting at Work on Arousal, Fatigue, and Mood Among Sedentary Female Employees: A Parallel-Group Randomized Trial.

OBJECTIVE: The aim of this study was to determine whether individuals who participated in an intervention to reduce sitting at work would report changes in arousal, fatigue, and mood. METHODS: Inactive females with full-time sedentary occupations (N = 49) were randomly assigned to take short, frequent breaks (SBs) or longer, planned breaks (LBs) from sitting each workday for 8 weeks. At baseline and postintervention, participants completed measures of arousal, fatigue, and mood. Within- and between-group changes were examined. RESULTS: SB participants reduced sitting and reported moderate to large improvements in all affective outcomes except calmness (d = -0.44 to -0.82), whereas effect sizes were small for the LB group (d = 0.01 to -0.28). Only changes in negative affect differed between groups (P = 0.045). CONCLUSION: This study suggests that taking short, frequent breaks from sitting may be an effective strategy for improving affective outcomes among sedentary female employees.

Comparing the effects of two different break strategies on occupational sedentary behavior in a real world setting: A randomized trial.

UNLABELLED: Developing interventions to reduce sedentary behavior in the workplace is an important public health priority. Furthermore, research is needed to determine whether different approaches to breaking up prolonged sitting during the workday are equally feasible and effective. Thus, the purpose of this study was to determine whether varying the frequency and duration of activity breaks during the workday would differentially impact sedentary behavior and health outcomes. Inactive females (N = 49) working full-time sedentary jobs were recruited for this parallel-group randomized trial. Participants were randomly assigned to take short, frequent breaks from sitting (1-2 min every half hour; SB) or longer, planned breaks from sitting (two 15-minute breaks per workday; LB) during each workday across an 8-week intervention. Sedentary time and health outcomes were assessed at baseline and post-intervention. The study ran from March 2014-June 2015. Results showed sedentary time during the workday decreased significantly in the SB group (- 35.6 min; d = - 0.75; p = 0.03), but did not change in the LB group (+ 4.5 min; d = 0.12). Participants in the SB group also demonstrated small-to-moderate declines in total cholesterol (d = - 0.33; p = 0.10), triglycerides (d = - 0.38; p = 0.06) and fasting blood glucose (d = - 0.29; p = 0.01) from pre to post-intervention. Health outcomes did not change in the LB group. This study demonstrated that taking short, frequent breaks from sitting during the workday is a feasible and effective approach for reducing sedentary time at work. These results have implications for the development of public health messages addressing sedentary behavior, and inform future interventions to reduce sedentary time in the workplace. TRIAL REGISTRATION: This study is registered at www.clinicaltrials.gov: NCT02609438.

From sedentary to active: Shifting the movement paradigm in workplaces.

Increased sedentary behavior and reduced physical activity are risk factors for morbidity and mortality. As adults spend a significant portion of their time at work where the default is to spend the majority of the day sitting, shifting workplace norms to decrease sedentary time and increase active time could have a public health impact. Workplaces offer a unique setting for multi-level interventions that can reach diverse populations. Traditional worksite wellness initiatives have produced equivocal results in terms of increasing physical activity. One reason for this may be the focus on corporate-fitness type programs and health education with little change in workplace culture. More innovative approaches combining theory-based worksite wellness components with behavioral economics approaches promoting incidental physical activity at the workplace to make activity the default may be necessary. This article discusses strategies to shift the workplace paradigm from being sedentary to more active using a range of approaches.