Browsing by Author "Umeda, Masataka"
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Item Examining the day-to-day bidirectional associations between physical activity, sedentary behavior, screen time, and sleep health during school days in adolescents(PLOS, 2020) Kim, Youngdeok; Umeda, Masataka; Lochbaum, Marc; Sloan, Robert A.Background Adolescence is a vulnerable period for experiencing poor sleep health. Growing studies have demonstrated lifestyle behaviors including physical activity (PA), screen time (SCT), and sedentary behaviors (SED) as the potential factors associated with sleep health in adolescents; yet, the evidence is inconclusive and the directionality of temporal associations across school days are not well understood. This study examined the day-to-day bidirectional associations of lifestyle behaviors with sleep health parameters in adolescents. Methods A total of 263 adolescents (58% boys) in 6th - 8th grades wore an accelerometer for 24-hour across the three consecutive school days and completed recording SCT in time-diary and answering sleep quality (SQ) questions for each day. Sleep-wake patterns as well as time spent in moderate- and vigorous-intensity PA (MVPA) and SED were objectively quantified from the wrist-worn accelerometry data across the two segments of the day (during and after school hours). Mixed model analyses were conducted to test bidirectional associations between lifestyle factors and sleep health parameters in each temporal direction across the days. Additionally, indirect associations across the days were tested using an autoregressive cross-lagged model analysis in the framework of path analysis. Results MVPA minutes in a day did not predict sleep health parameters that night. The bidirectional associations were partially observed between SED and sleep health, but the significance and direction of the associations largely varied by the time segment of a day as well as types of sleep health parameters. Additionally, greater SCT during the day was associated with lower SQ that night (b = -0.010; P = .018), and greater SQ was associated with greater MVPA during school hours (b = 6.45; P = .028) and lower SED after school hours (b = -39.85; P = .029) the next day. Lastly, there were significant indirect associations of SCT with sleep health parameters across the days indicating multi-day lagged effects of SCT on sleep health the later nights. Conclusion This study highlights the importance of lowering SCT for better sleep health in adolescents during school days. Additionally, perceived SQ is shown to be a potential significant predictor promoting healthy behaviors the next day independent of sleep-wake patterns. Further studies are warranted to confirm the observed temporal associations between SCT, SQ, and behavioral outcomes in this vulnerable population.Item Gender differences in the prevalence of chronic pain and leisure time physical activity among US adults: A NHANES study(2019) Umeda, Masataka; Kim, Youngdeok (TTU)Gender disparities in chronic pain are well documented in the literature. However, little is known regarding the relationship between physical activity (PA) and gender disparities in chronic pain. This study described gender differences in prevalence of chronic pain and PA, and identified a type of leisure time PA that individuals frequently chose in a nationally representative sample of US adults (N = 14,449). Data from the National Health Nutrition Examination Survey 1999–2004 were analyzed. Individuals were categorized into no chronic pain (NCP), localized chronic pain (LCP), and widespread chronic pain (WCP) groups based on responses to a pain questionnaire. A self-report PA questionnaire was used to estimate the time spent in different types of PA. Women showed higher prevalence of LCP and WCP compared to men. Men spent more hours per week for leisure time PA compared to women, but men and women showed similar prevalence of sufficient PA to meet a PA recommendation (≥150 min/week of moderate-to-vigorous intensity PA) across chronic pain categories. However, the prevalence of sufficient PA was substantially higher among men and women with NCP compared to men and women with LCP and WCP. Additionally, both men and women chose walking as the primary type of leisure time PA. Together, gender disparities exist in the prevalence of chronic pain and hours spent for leisure time PA. More research is needed to explore the role of increasing leisure time PA, such as walking, in reducing gender disparities in chronic pain.Item Physical activity, screen-based sedentary behavior, and sleep duration in adolescents: Youth risk behavior survey, 2011-2013(2016) Kim, Youngdeok (TTU); Umeda, Masataka; Lochbaum, Marc (TTU); Stegemeier, Steven (TTU)This study examined the concurrent associations of physical activity and screen-based sedentary behavior with sleep duration among adolescents by using data from the national Youth Risk Behavior Survey 2011-2013. Using latent class analysis, we identified 4 latent subgroups of adolescents with various levels of physical activity and screen-based sedentary behavior. The subgroup with high levels of physical activity and low levels of sedentary behavior generally showed greater odds of having sufficient sleep (≥8 hours/night) than the other subgroups. Findings imply that concurrent achievement of a high level of physical activity and low level of screen-based sedentary behavior is necessary to promote sufficient sleep among adolescents.Item Psychological determinants of sport-injury rehabilitation adherence(2014-05) Marino, Courtney A.; Lochbaum, Marc; Umeda, Masataka; Omli, JensSport-related injuries are prevalent in today’s society and these injuries require physiotherapy. Physical therapy is vital to have a positive treatment outcome. However, many individuals in physiotherapy do not adhere to treatment. Related data shows some psychological factors, such as depression or anxiety, may affect adherence to a prescribed treatment. The purpose of the present study was to examine what psychological factors may influence adherence or non-adherence to physical therapy. It was hypothesized that individuals with high scores of depression and anxiety would adhere less to physical rehabilitation than those who did not. Individuals that had high vigor scores were predicted to adhere to treatment more than those who did not. Thirty patients (mean age = 41, SD=13.93; 20 males, 10 females) from Lubbock Sports Rehab completed the Profile of Mood States 2 Adult Short Form (POMS 2-A). Office managers recorded how many appointments had been scheduled and how many appointments were actually attended. The ratio of appointments attended and appointments scheduled measured adherence. Results show statistical significance for vigor (r=0.48, p<0.01, p=0.007) in predicting increased rehabilitation attendance. Other POMS 2-Y psychological factors were not significant (r= -0.261-0.067, p>0.05) on adherence. Increased scores in vigor predicted better attendance to physical therapy independent of demographics and the duration of physical therapy. Results implicate that physical therapists should be aware of psychological factors that can predict rehabilitation, and in turn promote a more successful treatment outcome.Item The commitment of separate goal setting situations with collegiate athletes(2014-05) Trejo, Bettina; Lochbaum, Marc; Umeda, Masataka; Omli, JensThe purpose of this study is to investigate commitment scores to goals in different conditions. There were three conditions in this study; coach set, athlete set, and coach and athlete combined set. Data came from 40 club sport athletes from a university in the state of Texas. Athletes were asked to complete three questionnaires with different instruction sets. The questionnaire was a Goal Commitment Questionnaire created by Hollenbeck and Klein (1987). Each questionnaire explained to imagine a goal that a coach would give you, you would create for yourself, or you and your coach would create together. Hypotheses for this study were commitment scores would be highest in the combined condition, lowest in the coach condition or very similar in the combined and self-set conditions. Results indicated no differences in the scores between the three conditions, suggesting that the hypotheses were not supported. Secondary analyses indicated that younger participants were significantly more committed to self-set and combined conditions. More experienced athletes were found to be most committed to the coach set condition. Females were found to be more committed to self-set and combined conditions. Team sports proved to be more committed to all three conditions compared to individual sports. Taken together, the findings of this study suggest that athletes’ factors (age, experience, gender, type of sports) may influence the level of commitment to achieve a goal. Results will be helpful to coaches when working on goal setting with their athletes. It will allow them to know who will be more committed to which types of goals. This can effectively help the athletes as well when attempting to create an effective goal for their season.