Changes in Sedentary Time and Physical Activity in Response to an Exercise Training and/or Lifestyle Intervention

2014 ◽  
Vol 11 (7) ◽  
pp. 1324-1333 ◽  
Author(s):  
Sarah Kozey-Keadle ◽  
John Staudenmayer ◽  
Amanda Libertine ◽  
Marianna Mavilia ◽  
Kate Lyden ◽  
...  

Background:Individuals may compensate for exercise training by modifying nonexercise behavior (ie, increase sedentary time (ST) and decrease nonexercise physical activity [NEPA]).Purpose:To compare ST and NEPA during a 12-week exercise training and/or lifestyle intervention.Methods:Fifty-seven overweight/obese participants (19 M/39 F) completed the study (mean ± SD; age 43.6 ± 9.9 y, BMI 35.1 ± 4.6 kg/m2). There were no between-group differences in activity levels at baseline. Four-arm quasi-experimental intervention study 1) EX: exercise 5 days per week at a moderate intensity (40% to 65% VO2peak) 2) rST: reduce ST and increase NEPA, 3) EX-rST: combination of EX and rST and 4) CON: maintain habitual behavior.Results:For the EX group, ST did not decrease significantly (mean ((95% confidence interval) 0.48 (–2.2 to 3.1)% and there was no changes in NEPA at week-12 compared with baseline. The changes were variable, with approximately 50% of participants increasing ST and decreasing NEPA. The rST group decreased ST (–4.8 (0.8 to 7.9)% and increased NEPA. EX-rST significantly decreased ST (–5.1 (–2.2 to 7.9)% and increased time in NEPA at week-12 compared with baseline. The control group increased ST by 4.3 (0.8 to 7.9)%.Conclusions:Changes in nonexercise ST and NEPA are variable among participants in an exercise-training program, with nearly half decreasing NEPA compared with baseline. Interventions targeting multiple behaviors (ST and NEPA) may effectively reduce compensation and increase daily activity.

Author(s):  
Brianne A. Bruijns ◽  
Leigh M. Vanderloo ◽  
Brian W. Timmons ◽  
Patricia Tucker

Background: Moderate-to-vigorous physical activity (MVPA) offers many health benefits for preschoolers (2.5–5 y). In childcare, MVPA is predominantly accumulated outdoors, with higher rates purported among children within the first few minutes outside. The Supporting Physical Activity in the Childcare Environment intervention included shorter, more frequent outdoor play sessions; this study sought to explore children’s activity levels during various outdoor play schedules. Methods: During the final week of the Supporting Physical Activity in the Childcare Environment intervention, preschoolers wore an Actical™ accelerometer for 5 days during childcare and staff logged outdoor times. Separate linear mixed effects models were run to explore the effect of the intervention on preschoolers’ physical activity (total and MVPA) and sedentary time during outdoor play. Sex was entered as an interaction effect. Results: Preschoolers (n = 292) were significantly more active in the first 10 minutes outdoors compared with remaining time (P < .0083). For total outdoor time, children in the experimental group engaged in significantly less sedentary time than those in the control group (P < .017), and experimental group boys and girls engaged in higher MVPA than boys and girls in the control group (P < .017). Conclusions: Findings support scheduling more frequent outdoor play sessions in childcare to increase physical activity participation among young children.


2012 ◽  
Vol 24 (3) ◽  
pp. 435-449 ◽  
Author(s):  
Sofiya Alhassan ◽  
Ogechi Nwaokelemeh ◽  
Manneh Ghazarian ◽  
Jasmin Roberts ◽  
Albert Mendoza ◽  
...  

This pilot study examined the effects of a teacher-taught, locomotor skill (LMS)- based physical activity (PA) program on the LMS and PA levels of minority preschooler-aged children. Eight low-socioeconomic status preschool classrooms were randomized into LMS-PA (LMS-oriented lesson plans) or control group (supervised free playtime). Interventions were delivered for 30 min/day, five days/week for six months. Changes in PA (accelerometer) and LMS variables were assessed with MANCOVA. LMS-PA group exhibited a significant reduction in during-preschool (F (1,16) = 6.34, p = .02, d = 0.02) and total daily (F (1,16) = 9.78, p = .01, d = 0.30) percent time spent in sedentary activity. LMS-PA group also exhibited significant improvement in leaping skills, F (1, 51) = 7.18, p = .01, d = 0.80). No other, significant changes were observed. The implementation of a teacher-taught, LMS-based PA program could potentially improve LMS and reduce sedentary time of minority preschoolers.


2020 ◽  
Vol 17 (10) ◽  
pp. 947-957
Author(s):  
Rachel Tinius ◽  
Kolbi Edens ◽  
Kim Link ◽  
M. Susan Jones ◽  
Scott Lyons ◽  
...  

Background: The purpose of this study was to determine the impact of evidence-based educational materials and access to local resources on physical activity (PA) levels, beliefs, and motivation (including self-efficacy) regarding PA during pregnancy in a rural setting. Methods: Information on PA levels (step counts, Pregnancy Physical Activity Questionnaire) and beliefs and motivation regarding PA (main surveys: Exercise Beliefs Questionnaire, Protection Motivation Theory and Health Action Process Approach) were collected between 8 and 16 weeks gestation. Women from a rural community were randomly assigned to the PA group (PAG, n = 38) or control group (n = 32). The PAG participants received an evidence-based educational brochure and access (at no charge to them) to local fitness facilities. At approximately 34 to 37 weeks gestation, baseline assessments were repeated. Results: Sedentary time was significantly different between groups over time, with control participants increasing sedentary time and PAG participants decreasing sedentary time (P = .04). Sixteen women (42%) in the PAG utilized the resources provided (prenatal yoga being utilized most). Postintervention, there was a significant group × time interaction for Perceived Self-Efficacy scores; scores in the PAG remained consistent with baseline values, whereas scores in the control group decreased (P = .03). Conclusions: The intervention reduced sedentary time and maintained self-efficacy scores during pregnancy.


2021 ◽  
Author(s):  
Victoria Motz ◽  
Alison Faust ◽  
Jessica Dahmus ◽  
Benjamin Stern ◽  
Christopher Soriano ◽  
...  

BACKGROUND Most patients with nonalcoholic fatty liver disease (NAFLD) are physically inactive despite the well-known benefits of physical activity. Telehealth offers promise as a novel way to deliver an exercise training program and increase physical activity. However, the feasibility, safety and efficacy of telehealth-based exercise programs is unknown in patients with NAFLD. OBJECTIVE To determine the feasibility of a directly supervised exercise training program delivered to patients with nonalcoholic steatohepatitis (NASH), the progressive form of NAFLD, exclusively with telehealth. METHODS In response to COVID-19 research restrictions, we adapted an existing clinical trial and delivered 20-weeks of moderate-intensity aerobic training five days a week under real-time direct supervision using an audio-visual telehealth platform. Aerobic training was completed by walking outdoors or using a home treadmill. Fitness activity trackers with heart rate monitors ensured exercise was completed at the prescribed intensity with real-time feedback from an Exercise Physiologist. RESULTS Three patients with biopsy-proven NASH were enrolled with mean age of 52 +/- 14 years. Mean body mass index was 31.9 +/- 5.1 kg/m2. All subjects had metabolic syndrome. All subjects completed >80% of exercise sessions (mean 84 +/- 3%) and no adverse events occurred. Body weight (-5.1 +/- 3.7%), body fat (-4.4 +/- 2.3%) and waist circumference (-1.3 +/- 1.6 inches) all improved with exercise. Relative reduction in magnetic resonance imaging proton density fat fraction (MRI-PDFF) was 35.1 +/- 8.8%. Reductions in hemoglobin A1c -0.5 +/- 0.2% and HOMA-IR -4.0 +/- 1.2 were observed. Peak oxygen consumption (VO2 peak) improved by +9.9 +/- 6.6 mL/kg/min. CONCLUSIONS This proof of concept study found supervised exercise training delivered via telehealth is feasible and safe in patients with NASH. Telehealth-based exercise training also appears to be highly efficacious in patients with NASH but this will need to be confirmed by future large-scale trials. CLINICALTRIAL NCT03518294


Author(s):  
Ke Zhou ◽  
Sensen He ◽  
Yanli Zhou ◽  
Biljana Popeska ◽  
Garry Kuan ◽  
...  

This study aimed to examine the effects of three-months of classroom-based Brain Breaks Physical Activity Solution (Brain Breaks®) on attitudes toward physical activity levels of primary school children in Henan Province, China. The participants were 704 children enrolled in grades 3–5 who were randomly assigned to either an experimental or a control group. The experimental group participated in Brain Breaks® video intervention for 3–5 min daily, at low-to-moderate intensity for three consecutive months. The control group resumed their normal routine. The children’s attitudes in both groups towards physical activity (PA) were evaluated using the self-reported Attitudes toward Physical Activity Scale (APAS), before and after the intervention. The effects of the intervention on APAS scores were analyzed using mixed model analysis of variance with Time as within-subject, and Group as between-subject factors. The analysis revealed evidence in support of the positive effect of classroom video interventions such as Brain Break on children’s attitudes toward importance, fun, and trying to do their personal best in physical activity. Also revealed was the important role the teacher plays in this process.


Kinesiology ◽  
2018 ◽  
Vol 50 (2) ◽  
pp. 251-259 ◽  
Author(s):  
Hrvoje Podnar ◽  
Dario Novak ◽  
Ivan Radman

The objective was to explore the effectiveness of a five-minute classroom-based physical activity (5min-Class-PA) to keep student behaviour on task while increasing PA and energy expenditure during school days. The multiple baselines across subjects’ design was implemented to assess on-task behaviour during academic lessons (e.g., Mathematics, Science, Language, Art). Observers were blinded to study condition. A quasi-experimental design was implemented to assess PA volume and energy expenditure using SenseWear Armband body monitor (BodyMedia Inc., Pittsburgh, PA, USA). A convenience sample of elementary school pupils (aged 6-10 years) was observed. A total of eight class departments or two class departments per grade (first to fourth) were included by random selection. All pupils from the selected class departments were asked to participate (total 149) and 126 (85%) had no health aberrations and returned parent signed informed agreement on participation. Five-minute PA daily was performed in the middle of a 45-min academic lesson by imitating video animations projected on the school board for 12 weeks. The aims were to assess on-task behaviour during academic lessons and physical activity volume and energy expenditure during a school day. When the 5min-Class-PA was implemented, initially high on-task behaviour during the first part of the lesson (91.42% and 94.8% for 6-8- and 8-10-year-olds, respectively) was not significantly changed after the 5min-Class-PA. In contrast, when the 5min-Class-PA was not implemented, on-task behaviour during the second part of the lesson decreased (by 3% and 4% for 6-8- and 8-10-year-olds, respectively). After the 5min-Class-PA was systematically introduced, on-task behaviour systematically improved. The results of the implementation of the classroom-based PA also indicated a small, non-significant increase in PA levels and energy expenditure during the school day, but also a non-significant increase in sedentary time. On-task behaviour during academic lessons and daily in-school PA levels can be improved by implementing a 5min-Class-PA programme.


Author(s):  
Chia-Hsun Chang ◽  
Ching-Pyng Kuo ◽  
Chien-Ning Huang ◽  
Shiow-Li Hwang ◽  
Wen-Chun Liao ◽  
...  

This study aimed to determine whether daily physical activity in young and older adults with T2DM is associated with diabetes control. A prospective correlational study involving 206 young (≤65 years) and older (>65 years) adults was conducted. The International Physical Activity Questionnaire was used to assess their daily physical activity levels. Patients’ mean HbA1c level was 7.8% (±1.4), and 95.9% of patients had unsatisfactory diabetes control. Performing more minutes per week of moderate-intensity daily physical activity was associated with a lower risk of glycemia in both young and older adults. Furthermore, moderate daily physical activity significantly lowered the risk of glycemia. Health personnel must encourage patients to engage in moderate daily physical activities to improve diabetes control.


Author(s):  
Tom Martinsson Ngouali ◽  
Mats Börjesson ◽  
Åsa Cider ◽  
Stefan Lundqvist

Swedish physical activity on prescription (PAP) is an evidence-based method to promote physical activity. However, few studies have investigated the effect of Swedish PAP on physical fitness, in which better cardiorespiratory fitness is associated with lower risks of all-cause mortality and diagnose-specific mortality. Direct measures of cardiorespiratory fitness, usually expressed as maximal oxygen uptake, are difficult to obtain. Hence, exercise capacity can be assessed from a submaximal cycle ergometer test, taking the linear relationship between heart rate, work rate, and oxygen uptake into account. The aim of this study was to evaluate exercise capacity in the long term, following PAP treatment with enhanced physiotherapist support in a nonresponding patient cohort. In total, 98 patients (48 women) with insufficient physical activity levels, with at least one component of the metabolic syndrome and nonresponding to a previous six-month PAP treatment, were randomized to PAP treatment with enhanced support from a physiotherapist and additional exercise capacity tests during a two-year period. A significant increase in exercise capacity was observed for the whole cohort at two-year follow-up (7.6 W, p ≤ 0.001), with a medium effect size (r = 0.34). Females (7.3 W, p = 0.025), males (8.0 W, p = 0.018) and patients ≥58 years old (7.7 W, p = 0.002) improved significantly, whereas a nonsignificant increase was observed for patients <58 years old (7.6 W, p = 0.085). Patients with insufficient physical activity levels who did not respond to a previous six-month PAP treatment can improve their exercise capacity following PAP treatment with enhanced support from a physiotherapist during a two-year period. Future studies should include larger cohorts with a control group to ensure valid estimations of exercise capacity and PAP.


2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
R Martinez-Rueda ◽  
M A Camacho ◽  
I J Díaz

Abstract Background The changes generated in the studentś lifestyle due to the academic demands, may favour the prevalence of risk factors for non-communicable diseases as well as compromise other domains of their life. The purpose of this study was to establish the prevalence of behavioural risk factors in students of the Professional in Physical Activity and Sports program of a University in Bucaramanga, Colombia. Methods A cross-sectional study with a sample of 189 students was conducted. The students were surveyed with the first step of the STEPs questionnaire, which evaluates the behavioural risk factors for non-communicable diseases. A descriptive data analysis was performed, and Pearson tests were applied to determine the correlation between the analysed variables with a level of significance α = 0.05 using STATA 13.0. Results 80% of the participants were men. The age average was 22.7 ± 3.85 years. Regarding tobacco use, 10.1% of the participants were current smokers, while 30% smoked before. The majority of the participants (92.2%) have consumed alcohol within the past 12 months, while 69.8% consumed alcohol within the last month, with 8.7% of hazardous drinking. Concerning the diet, only 24.9% met the recommended consumption of fruits and vegetables per day. When assessing physical activity levels, only 6.3% were classified as physically inactive. Additionally, an average of 6 hours of sedentary behaviour was found, with 31.2% of excessive sedentary time. A weak correlation was found between age and academic cycle with the amount of physical activity at work (r = 0.24), (r = 0.18) and with sedentary time (r = -0.28), (-0, 32). Conclusions Although the prevalence of tobacco consumption was slightly higher than the national average, the students showed a lower prevalence of behavioural risk factors than the general population. However, it is necessary to promote strategies aimed at the control and prevention of these risk factors. Key messages Being a student of a program focused on physical activity and sport, can behave as a protective factor against the most prevalent risk factors in university life. It is necessary to implement more strategies centred on making students aware of the importance of the maintenance and improvement of their lifestyles in accordance with their professional profile.


2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
J. Slaght ◽  
M. Sénéchal ◽  
T. J. Hrubeniuk ◽  
A. Mayo ◽  
D. R. Bouchard

Background. Most adults choose walking as a leisure activity. However, many do not reach the international physical activity guidelines for adults, which recommend moderate intensity aerobic activity for at least 150 minutes/week in bouts of 10 minutes. Purpose. This systematic review provides an update on the walking cadence required to reach moderate intensity in adults and older adults, identifies variables associated with reaching moderate intensity, and evaluates how walking cadence intensity should be measured, but the main purpose is to report the interventions that have been attempted to prescribe walking cadence to increase time spent at moderate intensity or other outcomes for adults and older adults. Methods. SportDISCUS, Scopus, and PubMed databases were searched. We identified 3,917 articles and 31 were retained for this systematic review. Only articles written in English were included. Results. In general, 100 steps/minute is prescribed for adults to achieve moderate intensity, but older adults may require a higher cadence. Currently, few studies have explored using walking cadence prescription as an intervention to increase physical activity levels. Conclusion. Prescribing walking cadence as a way to increase physical activity levels has potential as a practical and useful strategy, but more evidence is required to assess its ability to increase physical activity levels at moderate intensity.


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