R. Todd Bartee

Internet-delivered behavior change program increases physical activity and improves cardiometabolic disease risk factors in sedentary adults: results of a randomized controlled trial.

OBJECTIVES To determine whether the Active Living Every Day (ALED-I) internet-delivered theory-based physical activity (PA) behavior change program increases PA and improves cardiometabolic disease risk factors (CDRF) in sedentary overweight adults. METHODS The study was a randomized control trial that took place in southern Wyoming and northern Colorado from 2005-2007. Thirty-two men and women (21-65 years) were randomized to a 16-week ALED-I intervention (n=14; age=41.4+/-3.7 years; BMI=32.3+/-1.3 kg/m(2)) or a delayed intent-to-treat control condition (n=18; age=49.4+/-1.7 years; BMI=30.6+/-0.8 kg/m(2)). At baseline and post-intervention, PA by pedometer and CDRFs were measured. RESULTS Both groups had similar baseline PA levels. ALED-I increased PA by an average of 1384 steps/day (p=0.03) compared to 816 steps/day (p=0.14) for the control group. Waist circumference (100.6+/-2.4 vs. 96.6+/-2.7 cm) and Coronary Risk Ratio (5.1+/-0.3 vs. 4.7+/-0.3) decreased in the ALED-I group and did not change in the control group (99.2+/-2.2 vs.99.8+/-2.1 cm) and (3.7+/-0.1 vs. 3.7+/-0.1), respectively. CONCLUSIONS The internet-delivered ALED program increased PA and improved some CDRFs in sedentary overweight/obese adults. To our knowledge, this is the first efficacy trial of the internet-delivered ALED program. Further studies are warranted due to the reach and cost-effectiveness of internet-delivered PA programs.

Self-Reported Alcohol Use and Sexual Behaviors of Adolescents:

Research has demonstrated a relation between alcohol use and engaging in high-risk sexual behaviors. Alcohol use, especially binge drinking, has been linked to a host of problems including high-risk sexual behavior, date rape, and academic problems. As such, the purpose of this study was to provide a descriptive profile of alcohol consumption among adolescents and to examine the relations of alcohol use (lifetime, current, binge) with sexual activity variables (sexual initiation, multiple sex partners, condom use, and pregnancy) among adolescents completing the 1993–1999 Youth Risk Behavior Survey. Analysis showed alcohol use was associated with high-risk sexual activity. Binge drinking had stronger relations with sexual activity variables than lifetime use and current use of alcohol. This result is of particular concern, in that binge drinking has been implicated in many problem behaviors. As such, it is of great importance to intervene in the high-risk practices of adolescents before problems occur.

Assessing Competencies of the Public Health Workforce in a Frontier State

The purpose of this study was to determine the level of perceived proficiency of a public health workforce based on the Public Health Practice Core Competencies. The Public Health Profile and Training Needs Assessment questionnaire was mailed out to public health employees representing mostly public health nursing, environmental health, mental health, and public health management/administration (n = 696). Nearly three-quarters (74%) of participants were female and 96% reported being white. Eighty one percent of participants were currently employed full-time. The majority of participants were trained at the bachelors level (54%). The response rate was 63.9%. Findings from this study show that all disciplines reported higher perceived proficiency in the Communication skills domain compared to the other seven skills domains. Perceived low skills domains included “financial planning and management skills” and “policy development/program planning skills” among public health nurses, mental health professionals, and environmental health specialists. Management/administration level staff reported their lowest perceived proficiency in Basic Public Health Science skills. Each group had different strengths and weaknesses and the necessary level of skill needed differs among discipline groups, thus future trainings on the Public Health Core Competencies should be discipline specific.

Body Mass Index in Rural First Grade Schoolchildren: Progressive Increase in Boys

CONTEXT Childhood overweight is a global health problem. Monitoring of childhood body mass index (BMI) may help identify critical time periods during which excess body weight is accumulated. PURPOSE To examine changes in mean BMI and the prevalence of at-risk-for overweight in repeated cross-sectional samples of rural first grade schoolchildren between 1999 and 2004. METHODS BMI was determined in 479 first graders from a rural Wyoming school district. BMI and gender-specific BMI-for-age percentiles were determined and evaluated over the 6 years. Children were also classified as normal or at-risk-for overweight according to CDC classification procedures. FINDINGS From 1999 to 2004, there was a significant increase in the average BMI of first graders, 15.8+/-2.2 kg/m2 versus 16.8+/-2.2 kg/m2, respectively (P<.05). First grade boys had a progressive increase in BMI from 1999 to 2004 (15.6+/-2.2 kg/m2 compared to 17.3+/-2.2 kg/m2, respectively), but no change was evident for first grade girls. There was an approximate 4-fold increase in the percentage of rural first grade boys classified as at-risk-for overweight between 1999 and 2004. CONCLUSIONS A progressive increase in the BMI and the significant increase in prevalence of at-risk-for overweight in rural first grade boys highlight the need for future gender and age group-specific investigations. Focus should be given to primary prevention programs targeting potentially vulnerable time periods when excess weight gain may be occurring.

Does a family history of coronary heart disease modify the relationship between physical activity and blood pressure in young adults

Background The purpose of this study was to examine the relationships between physical activity, a family history (FH) of coronary heart disease (CHD), and blood pressure (BP) in young adults. We were specifically interested in determining whether the relationship between moderate-to-vigorous physical activity and BP was modified by a FH of CHD. Methods Subjects were 230 (103 males, 127 females) university students. Family history was self-reported and habitual physical activity was assessed with a 3-day activity diary. Indicators of habitual physical activity included estimated daily energy expenditure (EE) and EE in moderate-to-vigorous physical activity (MVPA) [median metabolic equivalent (MET) > 4.8] and inactivity (IA) (MET<2.8). Blood pressure was measured by an automated device according to standard procedures. Results A large proportion of the sample (63% of males and 68% of females) reported a FH of CHD. In general, correlations between physical activity and BP were low (r<0.30), but in the expected direction (i.e., positive for IA and negative for MVPA and EE). In males IA was significantly related to BP (r = 0.25–0.29), but MVPA was not significantly related to BP (r = − 0.01 to −0.16). In females diastolic BP was significantly related to IA (r = − 0.21) and total EE (r = − 0.18). Total EE was significantly correlated to DBP (r = −0.22) in males and to mean arterial pressure (r = −0.18) in females. No significant differences in BP were found between subjects with or without a FH of CHD. Slightly stronger correlations emerged between MVPA and BP for subjects with a negative FH of CHD compared to those with a positive FH of CHD. Conclusions These data show a significant association between sedentary behavior and blood pressure in young adults. It is suggestive that the magnitude of the relationship between MVPA and BP may be modified by a FH of CHD. Thus, individuals with a FH of CHD may not be as responsive to increased levels of MVPA compared to those without a FH of CHD.