A review of pregnancy information on nutrition,physical activity and sleep websites

ProblemMost pregnant women report using the internet to source health information during pregnancy. However, little is known about the information presented on the internet and whether it is consistent with current evidence-based guidelines.BackgroundPregnancy is considered a risk period for women as it is associated with poorer health behaviours including an inadequate diet, decreased physical activity and reduced sleep. As a result, pregnant women and their unborn child are at a greater risk of adverse health outcomes.AimThe purpose of this study was to review pregnancy related information about nutrition, physical activity and sleep provided on Australian government and leading industry body websites, and to compare this information to current evidence-based guidelines.MethodsA systematic online search was conducted to identify Australian Government, and leading industry websites that provided information on nutrition, physical activity, or sleep during pregnancy. The content of each website was reviewed and compared against current nutrition, physical activity and sleep guidelines.Findings27 government and leading industry websites were included in this study. 18 websites included nutritional information, none of which aligned 100% with guidelines. Nine websites included physical activity information, only one of which was 100% in accordance with guidelines. Two websites included information on sleep during pregnancy, however neither were in accordance with guidelines.ConclusionWomen are accessing information via the internet that is not in accordance with current evidence-based guidelines. These results call to attention the need for government and leading industry websites to review and update their website information in accordance with current evidence-based guidelines.     

Coping with work stress: Psychological benefits of exercise

Although the health-enhancing effects of physical exercise have been well documented, less is known about how exercise benefits stressed employees psychologically. This article examines exercise as a coping response, and identifies changes in self-schemata (a person's underlying belief systems about him or herself) as the means by which exercise affects coping resources. In addition, by drawing on schema theory and the exercise literature, the active components of an exercise programme and the individuals who might enhance their ability to cope with stress through such a programme are identified.     

High-intensity interval training (HIIT) increases insulin-like growth factor-I (IGF-I) in sedentary aging men but not masters’ athletes: an observational study

Introduction: The aim of this investigation was to examine the impact high-intensity interval training (HIIT) on serum insulin-like growth factor-I (IGF-I) in active compared with sedentary aging men.

Methods: 22 lifetime sedentary (SED; 62?±?2 years) and 17 masters’ athletes (LEX; 60?±?5 years) were recruited to the study. As HIIT requires preconditioning exercise in sedentary cohorts, the study required three assessment phases; enrollment (phase A), following preconditioning exercise (phase B), and post-HIIT (phase C). Serum IGF-I was determined by electrochemiluminescent immunoassay.

Results: IGF-I was higher in LEX compared to SED at baseline (p?=?0.007, Cohen’s d?=?0.91), and phase B (p?=?0.083, Cohen’s d?=?0.59), with only a small difference at C (p?=?0.291, Cohen’s d?=?0.35). SED experienced a small increase in IGF-I following preconditioning from 13.1?±?4.7 to 14.2?±?6.0?μg·dl^?1 (p?=?0.376, Cohen’s d?=?0.22), followed by a larger increase post-HIIT (16.9?±?4.4?μg·dl^?1), which was significantly elevated compared with baseline (p?=?0.002, Cohen’s d?=?0.85), and post-preconditioning (p?=?0.005, Cohen’s d?=?0.51). LEX experienced a trivial changes in IGF-I from A to B (18.2?±?6.4 to 17.2?±?3.7?μg·dl^?1 [p?=?0.538, Cohen’s d?=?0.19]), and a small change post-HIIT (18.4?±?4.1?μg·dl^?1 [p?=?0.283, Cohen’s d?=?0.31]). Small increases were observed in fat-free mass in both groups following HIIT (p?d?=?0.32–0.45).

Conclusions: In conclusion, HIIT with preconditioning exercise abrogates the age associated difference in IGF-I between SED and LEX, and induces small improvements in fat-free mass in both SED and LEX.     

Adolescent girls’ race/ethnic status, identities, and drive for thinness

Using data from 7272 adolescent US girls, we explore how girls’ race/ethnic group status affects their bodyweight, perceptions of overweight, and weight control practices. We hypothesize that a girl’s race/ethnic status influences her basic identity which in turn prompts her to adopt or reject a “drive for thinness.” After controlling for family and peer support, school engagement, family SES, maturation, and family structure, we find that girls’ race/ethnic status influences their susceptibility to the thinness ideals of mainstream culture. African American girls weigh more than Asian, Hispanic, or White girls, but at any given weight they perceive themselves as overweight and attempt to control their weight less. Asian American and White girls invest most in thinness dynamics. Some evidence also suggests girls from lower SES families are less driven to be thin. Our results affirm the utility of viewing material bodies as “situations” that are experienced and interpreted in accord with identity group relations and dynamics.     

县域社会工作委员会职能的行使路径——以“专业社会工作者的工作模式”为发展方向

当前中国社会工作的发展之重点不在于盲目的扩大专业社会工作者人才队伍的规模,而更在于立足于现在已经存在的社会工作者岗位如何发挥出应有的作用,并随之提高社会工作者的职业声望。从而,基层社会工作委员会的工作内容和工作方式的明确化问题的解决已经迫在眉睫。本文提出县级社会工作委员会应采用专业社会工作者的工作模式,走出一条符合中国实际的社会工作专业化、职业化的道路。     

Incentives to Exercise

Can incentives be effective in encouraging the development of good habits? We investigate the post‐intervention effects of paying people to attend a gym a number of times during one month. In two studies we find marked attendance increases after the intervention relative to attendance changes for the respective control groups. This is entirely driven by people who did not previously attend the gym on a regular basis. In our second study, we find improvements on health indicators such as weight, waist size, and pulse rate, suggesting the intervention led to a net increase in total physical activity rather than to a substitution away from nonincentivized ones. We argue that there is scope for financial intervention in habit formation, particularly in the area of health.     

Nutrition of the elderly: Interactions with physical activity

Elderly subjects have a lower energy requirement compared to young adults as a result of lower physical activity and a lower basal metabolic rate. A lower energy intake in the elderly could lead to undesirable low intakes of essential nutrients. The reduction of the energy turnover is caused by, or a consequence of, a decrease in active cell mass. Thus, the effect of exercise training on habitual activity across age ranges, and age-related changes in body composition in relation to habitual activity level, are investigated here. The focus is on data on physical activity and body composition obtained with doubly labelled water. The results suggest that exercise training does not affect energy requirement in the elderly and the age-related decrease in fat-free mass is not delayed in subjects with a relatively high habitual activity level. Beneficial effects of exercise training in the elderly are endurance, flexibility, range of motion and balance control, all contributing to a delay in the age-induced impairment of personal mobility. Energy intake will inevitably go down as a result of a reduction of the energy requirement. Thus, the nutrition of elderly subjects needs more attention with regard to the essential nutrients than the nutrition of younger adults.     

Acting your age? Sports science and the ageing body

The medicalisation of aging and old age constructs ageing as first and foremost a biomedical event and as a process of inevitable decline. In sports science and sports medicine the functional decrements normally associated with ageing are being addressed. There is evidence reported in the scientific literature suggesting that certain exercise interventions can ‘reduc[e] or prevent[…] functional declines linked to secondary aging’ [Goggin, N.L., and Morrow, J.R. Jr. (2001). "Physical Activity Behaviors of Older Adults." Journal of Aging and Physical Activity 9, 58–66.].However a sociological critique is necessary. Whilst sports science seeks to position itself as a key player in the fight against ageing, it also opens the potential for the reconstruction of the ageing body as fit. However the evidence that exercise can fundamentally reshape older bodies is equivocal. A new frame is proposed which divorces exercise from anti-ageing purposes and uses the science of exercise to enable older people to recover a sense of physical competence as a creative pursuit in its own right.