The role of exercise on the innate immunity of the elderly

The increased life span in human population has shown that some diseases, as infections, cancer and autoimmune phenomena, occur more frequently in the elderly than in the younger. We describe the ageing process involving the innate immune system and the improvement given by moderate physical activity. In addition, we discuss the altered neutrophil granulocytes function, the role of macrophages and natural killer cells, besides the influence of cytokines and secretory IgA. The acquired information help us to explain how these changes could favor the onset of diseases in the elderly and how they may boost their immune function.     

The UK research assessment exercise

Abstract

This article examines and critiques the UK research assessment exercise (RAE) and its implications for research and writing in HRD. It describes the process and identifies weaknesses in some of the concepts and related criteria applied in assessing and grading research outputs and in particular the notions of ‘international’ and ‘world class’ as standards against which to judge those outputs. The article argues that the process has detrimental effects for emerging subjects such as HRD, for those engaged in research in such subjects and for journals such as HRDI which are relatively new to business and management. It concludes that UK academics working in the field of HRD are mistaken if they allow the RAE to drive their research and choice of publications and outlets, and that it is important to support the journals which are playing a critical role in establishing the subject.     

The Effect of a Multicomponent Dual-Modality Exercise Program Targeting Osteoporosis on Bone Health Status and Physical Function Capacity of Postmenopausal Women

Purpose: Exercise is important for the prevention of osteoporosis and the reduction of fracture risk because it improves muscle mass and strength, besides improving balance. We evaluated the effect of a specific exercise program on bone mass and quality and physical function capacity in postmenopausal women with low bone mineral density. Methods: Participants (N = 125) underwent a bone mass (Dual X-ray Absorptiometry), bone quality (osteosonography), and physical functional capacity assessment. Fifty-eight of them took part in an 11-month exercise program (E), that included a multicomponent (strength, aerobic capacity, balance, joint mobility) dual-modality (on ground and in the water; alternating group and home-based exercise periods) exercise regimen. The others represented a control group (C) that did not exercise. After the exercise program all participants were reevaluated. Results: After the training program: femoral neck T-score significantly improved in E; C significantly decreased all bone quality (osteosonography) parameters, whereas E showed no differences; E significantly improved all the physical function capacity parameters, while most of them decreased or did not change in C. Conclusions: A specific exercise program targeting osteoporosis improves physical function capacity, reduces physiological bone loss, and maintains bone quality in low bone mineral density postmenopausal women.     

Relationship Between Vigorous Exercise Frequency and Substance Use Among First-Year Drinking College Students

Objective: The authors explored the relationship between self-reported vigorous exercise frequency and alcohol, tobacco, and other drug (ATOD) use behaviors among first-year college students who self-identified as drinkers. Participants: The authors recruited 391 freshman college students in Northeast Florida to participate in an alcohol abuse prevention study. Methods: The authors conducted a multivariate analysis of variance to assess the relationship between vigorous exercise frequency and 6 measures of ATOD use at baseline. Results: Frequent exercisers drank significantly more often and a significantly greater quantity than did infrequent exercisers. However, frequent exercisers smoked cigarettes significantly less often than did infrequent exercisers. Conclusions: These findings suggest that vigorous exercise frequency is differentially associated with alcohol and cigarette consumption among college students. Researchers should further examine the reasons for these differences.     

旅游和健身锻炼与健康长寿关系的定量研究

基于中国老年人口健康纵向调查2002年和2005年数据,运用实证方法对影响我国65岁及以上老年人旅游和健身锻炼的相关因素以及旅游和健身锻炼对健康长寿的影响进行定量分析。研究显示在控制诸多干扰因素下,城镇老人、汉族老人、那些具有较高社会经济地位和较多医疗资源以及经常参与闲暇活动老人的外出旅游和参与健身锻炼的比例较高;宗教活动增加出游比例;出游比例具有随龄下降趋势。研究还发现出游和参与健身锻炼有利于健康长寿。     

A POOL OF POETRY

No abstract available for this article.     

A Literature Review of the Experiences of African American and Caucasian TANF Women Transitioning from Welfare to Work

This study examined African American women's perceptions of their adolescent children's well-being since gaining employment. This study departed from other studies that focused on the entire Temporary Assistance to Needy Families (TANF) population and/or compared subgroups within the population. In this study, the sample population is composed of all African American mothers and all of the mothers receive Temporary Assistance to Needy Families benefits and have gained employment. The study explored the relationship between adult supervision of adolescent children that resided in distressed communities and adolescent overall well-being as measured by academic well-being, emotional well-being, and social well-being.     

Exercise and executive functioning in older women

Research suggests that exercise can slow the rate of decline in cognitive functioning in older adults. The effects of aerobic and resistance exercise on executive functioning was examined in 68 women over 50 years of age. Participants completed the Tower of London and Benton Controlled Oral Word Association tests. Findings indicated that individuals participating in both aerobic and resistance exercises performed significantly better than individuals not participating in exercise. Individuals who were participating in both aerobic and resistance exercises did not perform disproportionately better. Thus the form of exercise appears to be less important than engaging in some form of exercise.     

Social Support for Exercise by Experts in Older Women Post–Hip Fracture

ABSTRACT

Using the data of the Baltimore Hip Study 5 (a home-based exercise intervention), this study examined how social support for exercise by experts (SSE-E) affected the self-efficacy, outcome expectations, and exercise behavior among older women following a hip fracture. The total sample included 164 females aged 65 years (M = 81.0; SD = 6.9) who had surgical repair of a nonpathologic hip fracture. Model testing showed a direct relationship between SSE-E and outcome expectations for exercise. There was, however, no direct or indirect relationship between SSE-E and self-efficacy or exercise behavior. The positive effect of SSE-E on the outcome expectations for exercise in older women recovering from a hip fracture provides an opportunity for health care providers in improving physical activity in this population.     

Effects of acute androstenedione supplementation on testosterone levels in older men

The purpose of the study was to examine the effects of acute androstenedione supplementation on hormone levels in older men at rest and during exercise. Men (n?=?11) between the ages of 58 and 69 were divided into an experimental (n?=?6; 62.33?±?2.57 y) and control (n?=?5; 60.2?±?1.02 y) groups. Each participant received an oral 300?mg dose of either androstenedione (experimental) or a cellulose placebo (control) for 7 d. Pre- and post-supplementation participants completed two separate, 20-min strength tasks consisting of leg extension and leg curls at different percentages of their 10-RM. Researchers collected blood samples pre-, during, and post-exercise. Blood samples were analyzed for testosterone, androstenedione, and estradiol levels. The researchers found a significant difference between pre- (4.36?±?56?ng/mL) and post- (5.51?±?0.35?ng/mL) testosterone levels, as well as pre- (0.88?±?0.20) and post- (7.46?±?1.25) androstenedione levels, but no significant differences between pre- and post-estradiol levels for either group. It appears that short-term androstenedione supplementation augmented acute testosterone responses to resistance exercise in older men. However, further study of this supplement is needed to determine any potential it may have in mitigating andropause.