Health aspects

The purpose of this study was to explore the relationship between children's enjoyment and perceived competence in physical education (PE) and the effects these factors may have on physical activity participation outside of school. Fifth through eighth grade (n = 100) school children completed questionnaires pertaining to their enjoyment in PE, perceived competence in PE, and physical activity participation outside of school. Results indicated a positive significant relationship between enjoyment in PE, and perceived competence in PE (p<0.01). Children with higher perceptions of competence in school PE, reported greater physical activity participation outside of the school environment (p<0.002). Enjoyment in PE had no statistical significance in determining physical activity participation outside of school (p>0.05). Understanding the factors which influence physical activity participation can help inform future policies and strategies aimed at providing developmentally appropriate experiences, ultimately providing intrinsic motivation to seek out, and sustain, regular physical activity strategies aimed at providing developmentally appropriate experiences, ultimately providing intrinsic motivation to seek out, and sustain, regular physical activity participation.

Vitamin D insufficiency/deficiency is widespread in asthma, and epidemiological studies point to an association between low serum 25-hydroxyvitamin D level and poor asthma control and increased severity. In humans. Vitamin D is principally derived from sunlight induced cutaneous conversion of 7-dehydrocholesterol to vitamin D and oral supplementation. We sought to determine if established and chronic-persistent adult asthma patients from a South-Florida pulmonary patient population, with abundant sunshine availability and oral vitamin D supplementation exhibit vitamin D insufficiency/deficiency. A trend to vitamin D insufficiency was observed in approximately 65% of both adult asthma patients and apparently healthy (non-asthmatic) volunteers. . The transcription factors required for Th9 conversion, PU.1 and IRF-4, were down-regulated by vitamin D. The generation of Th9 cells was inhibited equally by vitamin D and dexamethasone when used alone, but the effect was additive when both steroids were used in combination. Our studies using non-specifically stimulated cells were extended by analyzing the effect of vitamin D on allergen specific stimulation. The response of CD4+ T cells obtained from the blood of house dust mite positive asthmatics was studied. House dust mite allergen elicited a classical Th2 phenotype response (IL-4, IL-5, IL-9, and IL-13 cytokine profile) and vitamin D effectively inhibited those key Th2 cytokines. We conclude that vitamin D appears to be of significant clinical benefit in our cohort of patients, i.e., established chronic adult human asthma, by down-regulating key immune cells including Th9, Th17, and Th2 involved in this disorder.

Persistent, anthropogenic contaminants collectively known as endocrine-disrupting chemicals (EDCs), are considered to be potential threats to wildlife reproductive fitness (Wingfield, 2002). The modes by which EDCs act on the reproductive system, and establishment of steroid profiles in wildlife, are important areas of study. Two means of performing an endocrine snapshot profile from dolphin tissues (serum and urine) were tested on samples, comparing a novel high performance liquid chromatography method to newly-validated enzyme-linked immunoassays (ELISAs). Serum and urine samples were obtained from two marine parks, and from free-ranging dolphins in the Indian River Lagoon (IRL) and Charleston Harbor (CHS) systems. Relative binding affinities of steroids versus putative EDCs to steroid receptors were compared in dolphin reproductive tissues, obtained by the Georgia Aquarium's Dolphin Conservation Field Station (GADCFS) from strained bottlenose dolphins (four male, three female) during 2010 and 20ll.........I conclude that endocrine disruptors are tissue and receptor specific, and both legacy and emerging contaminants are of concern to dolphin stocks, particularly those facing other significant environmental stressors.

Many recent studies have confirmed that mindfulness meditation has wide ranging potential to improve the mental health and well-being of adults, though few studies have explored its potential to help younger populations. In the current study, a sample of 4th and 2nd grade students was trained in the techniques of mindfulness meditation. Baseline electroencephalograms (EEGs) were taken before the training, and again after a 10 week period of daily meditation practice. Measures of attention, creativity, affect, depression, behavioral inhibition/activation, emotion regulation, impulsive/aggressive behaviors, and social anxiety were also administered before and after the meditation practice period. Results indicate that mindfulness meditation produces increased relative left-frontal alpha activation, a brain pattern that has been associated with increased positive affect and more adaptive coping responses to aversive events. Significant post-meditation improvements in depression and creativity were also found in the experimental condition.

The objective of this study was to compare the acute heart rate variability responses to relaxation alone versus relaxation preceded by Hatha yoga. Twenty women and men (aged 18-50 years) participated in the study. Participants completed a yoga plus relaxation (YR) session and a relaxation only (R) session. The YR condition showed significant changes from baseline in HR (bpm, p < 0.001), RR (ms, p < 0.001), pNN50 (%, p = 0.009), LF (% p = 0.008) and HF (% p = 0.035). The R condition showed significant changes from baseline in HR (bpm, p < 0.001), RR (ms, p < 0.001), HF (ms2, p = 0.004), LF (%, p = 0.005), HF (%, p = 0.008) and LF/HF (%, p = 0.008). There were no significant differences between conditions for the changes from baseline for any of the variables. The results demonstrate that relaxation produces favorable changes in indices of heart rate variability whether alone or preceded by about of Hatha yoga.

Tea is a beverage consumed by individuals from a multitude of different cultures. It is often taken up with open arms and welcomed as a prominient compnent of cultures, diets, and daily social interactions. The value of tea is based as much on its physical cultures that enjoy tea interact with the beverage in different ways, I argue that tea has its own culture. From interviews with four informants, I found three dominant components of the tea culture that have swayed them to join : (1) tea can be a medium for social gatherings, (2) tea is beneficial to the mind and body, (3) people take the time to fully enjoy the experience. This thesis seeks to understand the value tea has for Floridian tea enthusiasts, the roots of the tea culture, and what it is about tea that has caused many to become "addicted".

Difficulty in communicating internal states may interfere with medical assessment of pain conditions. Individuals who score high on an assessment measure of a construct called alexithymia have difficulty in describing and/or identifying emotions. Both diffuse and low verbal communication styles have been related to alexithymia in chronic pain patients. Alexithymia has also been linked with pain intensity and various chronic pain conditions. As yet, research has not examined whether alexithymia and acute pain are related. The current research examined high-functioning individuals with chronic, acute, or no pain. No difference in alexithymia levels was found between the groups. However, pain intensity was related to difficulty in identifying feelings, and participants who scored high in alexithymia produced a low number of words per sentence in pain descriptions.