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Standard values of the upper body posture in healthy adults with special regard to age, sex and BMI
(2023)
In order to classify and analyze the parameters of upper body posture in clinical or physiotherapeutic settings, a baseline in the form of standard values with special regard to age, sex and BMI is required. Thus, subjectively healthy men and women aged 21–60 years were measured in this project. The postural parameters of 800 symptom-free male (n = 397) and female (n = 407) volunteers aged 21–60 years (Ø♀: 39.7 ± 11.6, Ø ♂: 40.7 ± 11.5 y) were studied. The mean height of the men was 1.8 ± 0.07 m, with a mean body weight of 84.8 ± 13.1 kg and an average BMI of 26.0 ± 3.534 kg/m2. In contrast, the mean height of the women was 1.67 ± 0.06 m, with a mean body weight of 66.5 ± 12.7 kg and an average BMI of 23.9 ± 4.6 kg/m2. By means of video rasterstereography, a 3-dimensional scan of the upper back surface was measured when in a habitual standing position. The means or medians, confidence intervals, tolerance ranges, the minimum, 2.5, 25, 50, 75, 97.5 percentiles and the maximum, plus the kurtosis and skewness of the distribution, were calculated for all parameters. Additionally, ANOVA and a factor analyses (sex, BMI, age) were conducted. In both sexes across all age groups, balanced, symmetrical upper body statics were evident. Most strikingly, the females showed greater thoracic kyphosis and lumbar lordosis angles (kyphosis: Ø ♀ 56°, Ø♂ 51°; lordosis: Ø ♀ 49°, Ø♂ 32°) and lumbar bending angles (Ø ♀ 14°, Ø♂ 11°) than the males. The distance between the scapulae was more pronounced in men. These parameters also show an increase with age and BMI, respectively. Pelvic parameters were independent of age and sex. The upper body postures of women and men between the ages of 21 and 60 years were found to be almost symmetrical and axis-conforming with a positive correlation for BMI or age. Consequently, the present body posture parameters allow for comparisons with other studies, as well as for the evaluation of clinical (interim) diagnostics and applications.
The question of whether nuclear energy—as a source with relatively low carbon dioxide emissions—can be classified as a sustainable energy source has come into focus in connection with climate change. There is a controversy over securing independence from fossil fuels and gas supplies from other countries through a revival of nuclear energy. On the other hand, some viewpoints are critical: the handling of nuclear waste and the still unclear risks to human health and the environment, especially in light of recent perils from Russian military attacks on Ukrainian nuclear plants. To evaluate the worldwide publications on nuclear energy under health and environmental aspects, socio-economic parameters were included to provide an informed background for all stakeholders, from scientists to decision-makers. The correlation between the number of nuclear power plants and the publication output of the countries is proven to be highly significant. Thus, the operating countries publish the most. It has been shown that the development and economic use of nuclear energy are major stimuli for scientific endeavors. Reactor accidents have also spurred research. Mathematical risk modeling has been the area with the highest citation rate to date, but environmental and health aspects have become more important, especially after major accidents. The results show the importance of economic interests in research on nuclear energy from health and environmental aspects. Against the background of transnational hazards, global research participation should be encouraged. Moreover, the international debate should not ignore the reality of threats and their possible impacts.