Frequencies Of Physical Activity Research Articles

Association of physical activity and cardiorespiratory function or BMI and body composition in preterm-born individuals: a systematic review.

To evaluate the association of physical activity (PA) and forced expiratory volume in one second (FEV1), peak oxygen consumption (pVO2), body mass index (BMI) and body composition in preterm-born individuals. Cochrane Library, EMBASE, MEDLINE, AMED, ERIC, Web of Science and PsycInfo were searched with no restriction on language and date of publication from inception to January 2018. Data were extracted comparing preterm-born individuals with different frequencies of PA and the outcome of interest. One randomized controlled, two longitudinal and thirteen cross-sectional studies comprising 1922 preterm-born individuals aged 5-25 were included. Assessment varied from a PA program to accelerometer data, interviews and self-report questionnaires. In preterm-born children, more PA was associated with better cardiorespiratory function in those groups with impaired lung function or with lower BMI in those groups with increased risk factors, but no association was found in unimpaired children. In preterm-born adults, more PA was associated with higher pVO2 and lower BMI. Only tentative conclusions can be drawn, especially regarding differences of the association of PA between preterm- and term-born populations. Further studies are needed to analyse the association of PA in preterm-born individuals with reduced cardiorespiratory function.

Effects of three different frequencies of aerobic physical activity on heart and kidney tissues in type 2 diabetes-induced rats

Objective:Exercise has many beneficial effects in the treatment and prevention of Type 2 Diabetes Mellitus (T2DM). The aim of this study was to evaluate the effect of physical activities with different frequencies performed within a total total duration of one week on the heart and kidney tissues and vascular endothelial growth factor (VEGF) expressions in experimental T2DM model.Method:Rats (n: 30) were divided into sedentary control (SC), sedentary T2DM (SD), T2DM and continuous exercise (DEc, 30 min/day, 5 days/week), T2DM and short bouts exercise (DEsb, 3x10 min/day, 5 days/week), T2DM and weekend warrior exercise (DEww, 35+40 min/day, 2 days/week) groups. Rats were administered streptozotocin (65 mg/kg) and nicotinamide (110 mg/kg) through intraperitoneal route. After 6-weeks of swimming exercise (total duration 150 min/week), biochemical analyzes were performed to measure oral glucose tolerance test, insulin sensitivity and cytokines. Histopathological and immunohistochemical analyses [VEGF, capillary density, Transforming growth factor beta (TGF-β)] were performed in heart and kidney tissues.Results:Compared with sedentary T2DM rats, significant improvements were observed in all exercise groups in terms of blood glucose level, insulin sensitivity, capillary density in heart tissue, VEGF expressions in tissues, TGF-β expressions in kidney tissue and all histopathological analysis (p<0.05).Conclusion:This study shows that physical activity at various frequencies may significantly ameliorate harmful effects of T2DM on heart and kidney tissue without significant differences between exercise frequencies, provided that the total duration of aerobic exercise remains the same (150 min/week).

Frequency of Dietary Intake and Physical Activity in Older Adults: A Cross-Sectional Study.

Background: Evidence shows that diet is associated with physical activity. However, there has been a lack of studies addressing it in a population of older adults. Therefore, the main purpose of this study was to explore associations between various frequencies of dietary intake and physical activity in older adults. Methods: In this cross-sectional study, the participants were 810 older adults aged ≥85. Frequency of dietary intake and the level of physical activity were assessed using the Elderly Diet Index score and International Physical Activity questionnaire. Mutual associations were examined using generalized estimating equations with a logistic regression model. Results: ”Optimal” intake of fish and seafood (OR (odds ratio) = 1.40; 95% CI (95 percent confidence interval) 1.01 to 2.00), fruits (OR = 2.10; 95% CI 1.45 to 3.02), legumes (OR = 1.73; 95% CI 1.19 to 2.50), olive oil (OR = 1.83; 95% CI 1.09 to 3.08) and bread (OR = 4.62; 95% CI 3.05 to 6.99) and the total Elderly Diet Index score (OR = 4.99; 95% CI 3.20 to 7.70) were associated with ”sufficient” physical activity. When all dietary components were entered simultaneously into the model, ”optimal” intakes of meat (OR = 1.73; 95% CI 1.10 to 2.71), fish and seafood (OR = 2.26; 95% CI 1.46 to 3.51), cereals (OR = 1.75; 95% CI 1.02 to 3.25), fruits (OR = 1.52; 95% CI 1.02 to 2.26), legumes (OR = 1.48; 95% CI 1.10 to 1.93), and bread (OR = 5.14; 95% CI 3.24 to 8.15) were associated with ”sufficient” physical activity. Conclusions: Our study shows that the total Elderly Diet Index score is the strongest predictor associated with ”sufficient” physical activity in a population of older adults. Thus, policies aiming to improve overall diet in order to achieve higher levels of physical activity are warranted.

The dose-response effects of uric acid on the prevalence of metabolic syndrome and electrocardiographic left ventricular hypertrophy in healthy individuals

Background and aimHyperuricemia (HUA) is associated with the prevalence of metabolic syndrome (MetS) and cardiovascular risks in various populations. HUA is also able to induce cardiomyocyte hypertrophy in mouse models. However, the dose-response effects of serum uric acid (SUA) on the prevalence of MetS and electrocardiographic left ventricular hypertrophy (LVH) are unclear. Methods and resultsWe retrospectively collected data from 18,932 individuals who underwent an annual health examination between 1/1/2016 and 12/31/2016. We excluded those with systemic diseases or missing questionnaires. The primary study endpoints were the prevalence of MetS and LVH, which were defined by the criteria for the Taiwanese population and the “SPRINT” trial. The cohort consisted of 17,913 individuals with a mean age of 31.2 years (SD 7.4) and a mean body mass index of 24.6 kg/m2 (SD 3.6); 87.1% of the individuals were men. The prevalence rates of HUA, MetS, and LVH were 29.5%, 9.4%, and 0.32%, respectively, in the overall study population. The HUA group was predominantly male and had significantly poorer lifestyle choices and greater laboratory cardiometabolic biomarker values than did the normouricemic group. However, the frequencies of physical activity were comparable between the two groups. After adjusting for confounders, SUA was associated with MetS (OR:1.473, 95% CI:1.408–1.540, P < 0.001) and LVH (OR:1.301, 95% CI:1.064–1.591, P = 0.01). ConclusionWe demonstrated that the dose-response effects of SUA are associated with the prevalence of MetS and electrocardiographic LVH in healthy individuals from Taiwan. Based on this evidence, future studies should investigate urate-lowering therapy and cardiovascular benefits in individuals with HUA (ClinicalTrials.gov number NCT03473951).

Gender and Age Differences in Levels, Types and Locations of Physical Activity among Older Adults Living in Car-Dependent Neighborhoods.

A thorough understanding of gender differences in physical activity is critical to effective promotion of active living in older adults. To examine gender and age differences in levels, types and locations of physical activity. Cross-sectional observation. Car-dependent urban and rural neighborhoods in Worcester County, Massachusetts, USA. 111 men and 103 women aged 65 years and older. From 2012 to 2014, participants were queried on type, frequency and location of physical activity. Participants wore an accelerometer for 7 consecutive days. Compared to women, men had a higher mean daily step count (mean (SD) 4385 (2122) men vs. 3671(1723) women, p=0.008). Men reported higher frequencies of any physical activity and moderate-to-vigorous physical activity, and a lower frequency of physical activity inside the home. Mean daily step counts and frequency of physical activity outside the home decreased progressively with age for both men and women. Women had a sharper decline in frequencies of self-reported physical activity. Men had a significant decrease in utilitarian walking, which women did not (p=0.07). Among participants who reported participation in any physical activity (n=190), more women indicated exercising indoors more often (59% vs. 44%, p=0.04). The three most commonly cited locations for physical activity away from home for both genders were streets or sidewalks, shopping malls, and membership-only facilities (e.g., YMCA or YWCA). The most common types of physical activity, performed at least once in a typical month, with over 40% of both genders reporting, included light housework, brisk walking, leisurely walking, and stretching. Levels, types and location preferences of physical activity differed substantially by gender. Levels of physical activity decreased progressively with age, with greater decline among women. Consideration of these gender differences is necessary to improve the effectiveness of active living promotion programs among older adults.

Uticaj vežbanja uz primenu otpora na autonomni nervni sistem i spavanje

Physical activity changes our body in many aspects, including autonomic regulation of cardiovascular system and thermoregulation, changes in metabolism, secretion of hormones and, as a consequence, mental changes. Acute effect of physical effort is increased sympathetic activity leading to condition known as ''fight or flight'' which includes tachycardia, tachypnea, blood pressure increase, pupil dilatation and increased attention. Parasympathetic activity is increased between series of trainings, during the resting state, and its effect is often referred to as ''rest and digest'' state. It includes increased salivation, drop in heart rate, bronchoconstriction, myorelaxation and pupil constriction. There are other factors responsible for the influence of exercise on our body. Good feelings and better memory after exercise are caused by secretion of various compounds, such as BDNF, dopamine and endorphins, as well as blood flow, leading to the use of exercise as therapeutic method but also as an agent of addiction. Sleeping is also altered by physical activity directly through nervous system and indirectly through metabolism and hormones. There are various types, aerobic and resistance, and frequencies of physical activity that can be used as treatment of many disorders and states. In this article we will discuss multiple benefits of resistance training on autonomic nervous system function and sleep.

Low Frequencies of Physical Activity in Patients with Spinal Cord Injury

Low Frequencies of Physical Activity in Patients with Spinal Cord Injury

Adolescents’ Relationship between Physical Education and Longitudinal Physical Activity Trends

With physical education (PE) being an avenue to be physically active and learn about health and wellbeing, it is important to understand enrollment trends and physical activity (PA) behaviors among adolescents. The purpose of this study is to examine adolescents’ health profiles and gain an understanding of adolescents’ perspective of PE. The current study used mixed methodology to examine adolescents’ health profiles and gain understanding of their perspectives of PE. Part 1 identified relationships over a two-year period between: PE rating, physical activity (PA), and health variables using data from the National Longitudinal Survey of Children and Youth (NLSCY). Part 2 examined adolescents’ perspectives of PE through four focus groups.Overall, PE was preferred over other subjects by 78% of participants; and preferring PE predicted higher frequencies of PA, lower BMI, and higher self-esteem. Enrollment in high school PE was influenced by the environment, gender, course conflicts, and teacher influence. In summary, the majority of adolescents prefer PE; it has an influence on health, and is an avenue for PA. Continued efforts need to be made to increase PE enrollment and participation to ensure the health of young people.

Effects of Self-efficacy on Health Behavior and Body Weight

Objective: Overweight and obesity is a major public health in the U.S. Self-efficacy plays a significant role in health behavior (exercise and diet) and lack of could contribute to obesity. Our purpose was to evaluate perceived self-efficacy as it relates to eating, exercise and BMI in individuals with overweight and obesity. Methods: 99 employees from 4 nursing-homes in Northeast U.S. participated, all with a body mass index (BMI)>25.0 kg/m2. Eating and exercise self-efficacy (Eat-SE, Ex-SE), Healthy Eating Scores (HES), and physical activity (PA) were assessed using questionnaire responses. Correlation and mediation analysis examined the influence of Eat-SE and Ex-SE on PA, HES and BMI. Results: Higher HES predicted higher Eat-SE (p=0.02) and in turn, a lower BMI (p=0.02). Increased frequencies of moderate and vigorous PA predicted higher Ex-SE (p=0.01, p=0.00). Moderate PA further predicted lower BMI (p=0.05). 44% of the total effect of vigorous PA on BMI was mediated by Ex-SE (p=0.01). Conclusion(s): Our models combining self-efficacy and behavioral variables captured variations in BMI in overweight and obese individuals. Future obesity interventions should incorporate improvement in self-efficacy for overcoming barriers to weight management.

The influence of physical activity on cigarette smoking among adolescents: evidence from Add Health.

This article explored the relationship between physical activity and smoking behavior among adolescents using rich longitudinal survey data from a nationally representative sample of adolescents. Several endogeneity-corrected models were estimated to ascertain the effect of exercise on both the probability of being a smoker and the intensity of cigarette smoking. The analysis indicated that 1 additional weekly occurrence of exercise led to a 0.3% decline in the probability of being a smoker and led to a 4.1% reduction in the number of cigarettes smoked by a smoker during a month, a result that was robust to stratification by gender and race/ethnicity. Consistent with the national guidelines, frequencies of physical activity of at least 7 times per week appeared to exhibit the biggest benefits in terms of reduction in smoking for both genders and across races/ethnicities. Reduction in health-damaging smoking behavior among adolescents could be an additional benefit of being physically active. This research documented a new pathway by which even moderate increases in physical activity could result in improved health outcomes by reducing smoking.

A 1-Year Follow-Up on Effects of Exercise Programs on Well-Being in Older Adults

The purpose of this study was to investigate the long-term effects of three types of training on wellbeing and frequency of physical activity and to determine whether preintervention motivation moderates the effects. Sixty-two older adults (M = 75 years old, SD = 5; 61% women) completed 4-mo programs of endurance, functional or strength training, with reassessment of well-being (life satisfaction, positive affect, negative affect, vitality) and physical activity 12 mo later. All groups showed small improvements in most measures of well-being at 4 mo. At follow-up, endurance training still had small beneficial effects, while changes with functional and strength training were generally trivial or harmful. Analysis for moderators indicated that autonomously motivated individuals better maintained gains in well-being and had higher frequencies of physical activity at follow-up compared with controlled individuals. Endurance training is recommended for older adults, but the long-term outcomes depend on the individual's motivational regulation at commencement.

Behavior and lifestyle factors among older persons living in a district of North India

Background: In elderly, healthy lifestyles are critical in reducing disease risk and increased wellness. Among the many top causes of morbidity, chronic lifestyle-related diseases contribute a major chunk. Objectives: The present study examined self-reported frequencies of smoking, alcohol use, physical activity and dietary practices among older persons and the influence of these on functional limitation among older persons. Materials and Methods: The study sample consisted of 400 study subjects of Shimla hills in North India, aged 60 to 92 years. Participants were recruited from urban and rural areas. Behavior and lifestyle factors information was obtained through a structured interview. Results: 12% currently consumed alcohol and 28.0% were current smokers. Less than half engaged in regular physical activity. Only 41% were regularly consuming milk products, fruits and vegetables in their diet. 20.1% of elderly had inadequate functional ability in instrumental activities of daily living. Conclusion: Adoption of healthy lifestyle activities especially a regular nutritious diet can help preventing functional limitation in elderly.

Promoting physical activity in older adults by education of home visitors

The objectives were to investigate in older adults (1) whether regular preventive home visits are associated with change or stability in physical activity and (2) whether education of home visitors influences stability and change in physical activity. The design was a prospective controlled randomised follow-up study with randomization at municipality level (17 intervention and 17 control municipalities) and outcomes measured at individual level. Visitors in the intervention-municipalities received regular education during 3years. The effect of the intervention was measured by a questionnaire survey among 1,913 old persons living in the 34 municipalities at baseline and 4½-year follow-up. Changes in physical activity were measured through self-reported frequencies of vigorous physical activity. All logistic regression analyses were stratified by sex and age group (75 and 80years old). There was no effect of receiving preventive home visits on change in physical activity among the men and among the 75-year-old women. Among the physically active 80-year-old women those who accepted and received more than four preventive home visits were more likely to go on being physically active compared to women who did not receive preventive home visits. Among the sedentary 80-year-old women those living in the intervention municipalities tended to increase their physical activity compared to the control women. These results were not seen in the old men. Preventive home visits as part of daily routine in primary care and education of home visitors and general practitioners may promote physical activity in older women.

Stability and change in physical activity in old age: the role of changes in disability.

The objective was to examine whether stability and change in physical activity in older men and women are influenced by (1) changes in disability and by (2) social relations and psychological well-being. The study is based on baseline, 3 and 4.5year follow-up data on 917 older men and women. Changes in physical activity were measured through self-reported frequencies of vigorous physical activity at the three measurement points. The analyses were carried out for two outcomes-decline in physical activity versus sustained high level of physical activity (from high to low) and sustained low physical activity versus improvement in physical activity (from low to high). The main results were: older adults with onset of tiredness or continuous tiredness in daily activities during 4.5years are more likely to have a concurrent decline in their physical activities during the same period. Older adults with onset of need of help and sustained need of help are more likely to have a decline in physical activities or to sustain a low level of physical activities during the same period. The associations between the psychosocial factors and change in physical activity are attenuated by the concurrent changes in disability. The present study supports that health promotion projects should be aware that development of tiredness and continuous tiredness are strongly related to a decline in physical activity and that onset of and sustained need of help are strongly associated with both a decline in and sustained low physical activity.

Physical Fitness, Physical Activity, and Self-Reported Back and Neck Pain in Elementary Schoolchildren

The present study investigates whether physical fitness, physical activity, and determinants of physical activity are associated with reports of back and neck pain in children. A total of 749 children (mean age: 9.7 years ± 0.7) were evaluated, using a standardized physical fitness test (Eurofit), a physical activity questionnaire, and a pain prevalence questionnaire. Results indicate that physical fitness levels are not associated with back pain reports, but pain reports are lower in girls reporting higher frequencies of moderate physical activity and better estimates for attitude toward physical activity. Therefore, in girls, increased levels of physical activity might contribute to better back health.

COUNTY HEALTH AGENTS

The Cooperative Research, Education, and Extension Service facilitated on a national level by U.S.D.A. provide a dissemination system to translate research-based strategies to practice within communities. Within the State of Kansas, county office employ agents whose mission includes improving community and behavioral health. These agents have the opportunity to model positive health behaviors, such as physical activity, for the county residents that they serve. Purpose: To determine the prevalence of Kansas' county health agents who meet the CDC/ASCM guidelines for physical activity and the relationship between activity level and agent self-efficacy for, and value of, physical activity. Methods: Of the 105 counties in Kansas, 14 did not currently have agents. Hence, 91 county agents (95% female, Mage = 43 ± 11.2 years) complete a telephone interview that included the Behavioral Risk Factor Surveillance Survey physical activity questions as the behavioral outcome. Based upon these questions agents were categorized as sedentary, active but not meeting CDC/ACSM recommendations, or meeting CDC/ACSM recommendations for regular physical activity. Self-efficacy reflected the agent's confidence in his/her ability to complete varying frequencies of moderate and vigorous intensity physical activity. Seven items that reflected the importance of regular physical activity when compared to other health behaviors were used to assess value. Results: 53% of the agents were currently meeting ACSM/CDC recommendations, 37% were active but not meeting recommendations, and 10% were sedentary. The agents had moderate perceptions of self-efficacy (M = 62.5 ± 23.6) and valued physical activity slightly less than other health behaviors (M = 12.2 ± 2.0; 14 reflects equal value). Finally, a hierarchical regression analysis revealed that self-efficacy (β = .41, p < .05) predicted significant variance in level of physical activity (R2 = .25, F(2,88) = 14.87, p < .01). Conclusion: The prevalence of regular physical activity is higher in county agents than in the population at large. However, a large proportion of county health agents do not meet the current recommendations for physical activity and as such could be targeted for intervention. Further, self-efficacy and value of physical activity provide potential mechanisms to target for behavior change strategies used for this population. Supported by the Kansas Social and Rehabilitative Services: FNP 536878

Health risks among Japanese men with moderate body mass index

Despite the westernized lifestyle, most Japanese are not prominently obese. As their obesity may be obscured, we want to further explore central fat distribution and health risks among this population. 2668 men (body mass index (BMI) 20- < 26.4 kg/m2) were identified from 3343 men (BMI 14.0-37.7, median of waist-to-height ratio (W/Ht) 0.50) who underwent routine health examinations. They were divided into four groups: (1) BMI 20- < 24, W/Ht < 0.50; (2) BMI 20- < 24, W/Ht > or = 0.50; (3) BMI 24- < 26.4, W/Ht < 0.50; and (4) BMI 24- < 26.4, W/Ht > or = 0.50. The metabolic risks and physical activities were compared. W/Ht > or = 0.50 comprised 35% of the subjects of BMI 20- < 24, 91% of BMI 24- < 26.4, only 1% of BMI < 20 and up to 99% of BMI > or = 26.4. After adjusting for age and smoking and with group 1 as the reference group, odds ratios (ORs) were significantly higher in both groups 2 and 4 for the risk of hypertension (1.42, 1.98), hyperglycaemia (1.49, 1.78), hypertriglyceridaemia (1.95, 2.56), low HDL cholesterol (1.87, 2.20), hyperuricaemia (2.00, 2.51) and fatty liver (2.57, 5.64) and additionally in group 4 for hypercholesterolaemia (1.35). ORs in group 3 were only significantly higher for risk of hypertension (1.86) and fatty liver (1.89). Significantly lower frequencies of regular physical activity were noted in the higher W/Ht groups (0.75, 0.47, 1.10, 0.52 days per week, from groups 1-4, respectively). Measurement of waist circumference may be a preliminary method for the survey of people at higher risk of lifestyle-related disorders in Japanese men, especially among those with moderate BMI.