Cm In Stature Research Articles

Effects of Light Conditions and Falls Concerns on Older Adults’ Gait Characteristics: A Preliminary Study

Falls are one of the main safety concerns for the aging population, possibly caused by the difficulty in maintaining the gait and balance during walking. Vision and psychological effects are reported to be major factors affecting human gait and balance. However, only a few studies have collectively investigated the effects of vision and psychological status on gait characteristics. Therefore, this study aimed to compare the gait characteristics of older adults with different falls concerns under usual ambient and visual-guided light conditions. Twelve community-dwelling adults (five males and seven females, seven with eye diseases, all over 75 years old, 164.5 ± 9.1 cm in stature) were recruited. Participants were instructed to walk from their bed to the bathroom with their normal walking speed four times (two light conditions x two repetitions). Participants’ gait characteristics, including the walking performance, posture, and stability measures, were compared using mixed analyses of variance with light conditions as the within-subject factor, and falls concerns as the between-subject factor. The study found: (1) When compared to the usual ambient night light condition, the lighting with a visual-based guiding prompted participants to have a lower maximum value of right hip flexion and a higher maximum value of trunk accelerometry. Higher confidence in walking and increased numbers of walking direction corrections might contribute to the changes under the visual-guided light conditions. (2) When compared to older adults with low fall concerns, those with high fall concerns demonstrated a slower walking speed as well as a reduction in motion smoothness.

Finite element modeling and parameter identification of the seated human body exposed to vertical vibration

Developing a biomechanical model which connected with the actual anatomy of the human body is helpful to understand the human response to vibration. A finite element model of the seated human body with 175 cm in stature and 68.6 kg in weight, which consists of seven segments, six joints and soft tissue, was established to reflect apparent mass based on the Hybrid III dummy model. By comparing the body segment mass percentages with previous data, the rationality of mass distribution in this model was verified. The biomechanical parameters play a crucial role in biodynamic modeling, while the joint and soft tissue parameters are difficult to choose due to the wide range of anthropometric parameters. In this study, the root-mean-square error between the calculated and the measured apparent mass was taken as objective function, and the effect of fifteen human parameters on the objective function was analyzed through sensitivity analysis. Then seven parameters with a considerable influence on the objective function were selected as design variables, and four approximate models were established for parameter optimization. Soft tissues and joint parameters of the model were determined by parameter identification, and the finite element model that can reflect vertical in-line and fore-and-aft cross-axis apparent mass of the human body without backrest was developed. The seated human model presented in this paper can also reflect the transmissibility from seat to the first thoracic spine and the main modes of the human body below 10 Hz, which is conducive to express the human response to vibration.

Building up the foundation for the elderly apparel industry through the study on a clothes-sizing system of elderly obese males

This study presents an efficient clothes-sizing system for those experiencing obesity in old age with the aim of revitalizing the clothing industry for older obese people. The study targets 249 obese men aged 60 to 85 who satisfy a Rohrer index score of 1.6 or higher and a BMI (body mass index) of 25 or higher. Elderly obese males showed more obesity in the body based on the waist. In particular, those in their 60s were the most obese, and after reaching their 70s, characteristics of old age in which the stature was reduced and the limbs were tapered were shown. The clothes-sizing system was set to 5cm in stature, 5cm and 3cm in chest girth, 2cm in waist girth (omphalion), and 2cm in hip girth according to the KS standards. Through the two-way distribution of each section, the name of the section with a high distribution was given. Casual tops were selected from eight sizes, ranging from 155 to 170cm in stature and 95 to 105cm in chest girth. Suit top sizes were selected from eight sizes, ranging from 160 to 170cm in stature and 94 to 103cm in chest girth. Bottoms suggested 10 sizes distributed between 90 and 100cm in waist girth (omphalion) and 92 and 98cm in hip girth. According to the KS standards, the detailed size was divided into the basic part and the reference part.

A case of projectile trauma from the medieval Poulton Chapel, Cheshire, the United Kingdom

AbstractExcavations at the medieval cemetery of Poulton Chapel, Cheshire, have uncovered over 900 articulated human skeletal remains, with numbers predicted to reach as high as 1500 as excavations continue. The demographics of this archaeological site is typical of a medieval rural assemblage. However, SK535 provides a glimpse into some of the traumatic aspects of medieval life. The excavation of SK535 revealed a middle‐aged adult male around 168 cm in stature. His position of burial was typical of Christian burials with an east‐west orientation, but the positioning of his arms identified that this was not a typical burial. His right arm was flexed at the elbow crossing the thorax, whereas the left arm was in the extended position. This is different from the other arm positions observed at Poulton Chapel. A metal object, identified here as a Type M7 bodkin arrowhead, was recovered from underneath the right arm, from within the thorax. This arrowhead was potentially armour piercing, and the type was commonly used during the 12th–13th century. Radiocarbon dates obtained for SK535 coincide with the time of the use of this arrowhead. Following the initial assessment, the only other instance of trauma identified in SK535 was a healed transverse fracture to the right distal ulna. Due to the location of Poulton Chapel in Cheshire, SK535 could have been wounded by an arrow carrying the M7 bodkin during English‐Welsh border skirmishes, which occurred frequently during this time period. The demographic profile of this individual indicates a possible professional fighter of the medieval period; however, no firm skeletal evidence of occupation could be provided. Nonetheless, this case study not only highlights the violence experienced during the medieval period but also indicates the ability for the survival of some traumas.

Robot-Assisted Laparoscopic and Thoracoscopic Surgery: Prospective Series of 186 Pediatric Surgeries.

Objective: We present the applications and experiences of robot-assisted laparoscopic and thoracoscopic surgery (RALTS) in pediatric surgery.Materials and Methods: A prospective, observational, and longitudinal study was conducted from March 2015 to March 2018 that involved a non-random sample of a pediatric population that was treated with RALTS. The parameters examined were: gender, age, weight, height, diagnoses, surgical technique, elapsed time of console surgery, estimated bleeding, need for hemotransfusion, complications, surgical conversions, postoperative hospital stay, and follow-up. The Clavien-Dindo classification of complications was used. The surgical system used was the da Vinci model, Si version (Intuitive Surgical, Inc., Sunnyvale, CA. U.S.A), with measures of central tendency.Results: In a 36-months period, 186 RALTS cases were performed, in 147 pediatric patients and an adult; 53.23% were male, and the remaining were female. The average age was 83 months, ranging from 3.5 to 204 months, plus one adult patient of 63 years. The stature was an average of 116.6 cm, with a range of 55–185 cm; the average weight was 26.9 kg, with a range of 5–102 kg; the smallest patient at 3.5 months was 55 cm in stature and weighed 5.5 kg. We performed 41 different surgical techniques, grouped in 4 areas: urological 91, gastrointestinal and hepatobiliary (GI-HB) 84, thoracic 6, and oncological 5. The console surgery time was 137.2 min on average, ranging from 10 to 780 min. Surgeon 1 performed 154 operations (82.8%), and the remainder were performed by Surgeon 2, with a conversion rate of 3.76%. The most commonly performed surgeries were: pyeloplasty, fundoplication, diaphragmatic plication, and removal of benign tumors, by area. Hemotransfusion was performed for 4.83%, and complications occurred in 2.68%. The average postoperative stay was 2.58 days, and the average follow-up was 23.5 months. The results of the 4 areas were analyzed in detail.Conclusion: RALTS is safe and effective in children. An enormous variety of surgeries can be safely performed, including complex hepatobiliary, and thoracic surgery in small children. There are few published prospective series describing RALTS in the pediatric population, and most only describe urological surgery. It is important to offer children the advantages and safety of minimal invasion with robotic assistance; however, this procedure has only been slowly accepted and utilized for children. It is possible to implement a robust program of pediatric robotic surgery where multiple procedures are performed.

한국 성인 남성의 의료용 압박스타킹 치수 규격 개발

The purpose of this study is to suggest the sizing system of medical compression stockings for Korean adult men in order to develop compression stockings with excellent dimensional fit reflecting the real human body data. Analyses were conducted on the raw data that the subjects consist of 19~60 aged men of Size Korea 2010 in this study. The stature and weight for the pantyhose stockings, and the ankle circumference and calf circumference for the thighs, knees, and calf support types of stockings were selected as the basic dimension items. The size interval of the pantyhose stockings were 2cm in stature and 2kg in weight. In addition, the thigh, knee, and calf support types of stockings were set with ankle circumference and calf circumference set at 1cm intervals. The designation is the same as KS pantyhose standard, S, M, L, XL. As a result, in the case of pantyhose compression stockings for men, the coverage ratio showed 97.2% in total, with 46.3% for M, 36.5% for L, 7.4% for S, and 6.9% for XL. In the case of thigh type, knee type and calf support types, the percentage of coverage was 99.96% in total, with 57.6% in M, 31.1% in L, 4.7% in S, and 1.6% in XL. The results of this study would help to improve the dimensional conformity of the medical compression stockings for Korean adult men.

Study on a clothes-sizing system for elderly obese women for the activationof the silver clothing industry

The purpose of this study is to propose a specialized clothes-sizing system for elderly (aged 60~79) obese women satisfying the following conditions based on the data from the fifth Korean Agency for Technology and Standards (2004): a Rohrer`s index of over 1.6, a BMI of over 25, and a WHR of over 0.85. The lower bodies of elderly obese women tends to be shorter and wider than average. Particularly, their torsos from the chest to the waist tend to be more obese than other areas. According to the KS standards, the clothes-sizing system sets up its size intervals as follows: 5cm in stature, 5cm and 3cm in bust, 3cm in waist, and 3cm in hip. Based on the dualistic distribution of each section, the names of the sections indicating high distribution are suggested. For suit tops, 11 sizes are selected as distributed in the 145-155cm stature section and 91-103cm bust section. For casual tops, nine sizes are selected as distributed in the 145-155cm stature section and 90-105cm bust section. For bottoms, 11 sizes are selected as distributed in the 82-97cm waist section and 91-97cm hip section. According to the KS standards, detailed sizes are suggested in the division of basic and reference areas.

The effects of sports participation on the development of left ventricular mass in adolescent boys.

To examine the contribution of body size, biological maturation, and nonelite sports participation to longitudinal changes of left ventricular mass (LVM) in healthy boys. One hundred and ten boys (11.0-14.5 years at baseline) were assessed biannually for 2 years. Stature, body mass, and four skinfolds were measured. Lean body mass (LBM) was estimated. Biological maturation was assessed as years from age at peak height velocity (APHV). Sports participation was assessed by questionnaire. LVM was obtained from M-mode echocardiograms using two-dimensional images. To account for the repeated measures within individual nature of longitudinal data, multilevel random effects regression analyses were used in the analysis. LVM increased on average 42 ± 18 g from 11 to 15 years (P < 0.05) and 76 ± 14 g from 3.5 years pre-APHV to 1.5 years post-APHV (P < 0.05). The multilevel model with the best statistical fit (Model B) showed that changes of 1 cm in stature, 1 year post-APHV, and 1 kg of LBM predicts 4.7, 0.5, and 1 g of LVM (P < 0.05), respectively. Among healthy, male adolescents aged 11-15 years individual differences in growth and biological maturation influence growth of LVM. Subcutaneous adiposity and sports participation were not associated with greater LVM.

How much more would KNM-WT 15000 have grown?

Because of its completeness, the juvenile Homo ergaster/erectus KNM-WT 15000 has played an important role in studies of the evolution of body form in Homo. Early attempts to estimate his adult body size used modern human growth models. However, more recent evidence, particularly from the dentition, suggests that he may have had a more chimpanzee-like growth trajectory. Here we re-estimate his adult stature and body mass using ontogenetic data derived from four African ape taxa: Pan troglodytes troglodytes, Pan troglodytes schweinfurthii, Pan paniscus, and Gorilla gorilla gorilla. The average percentage change in femoral and tibial lengths and femoral head breadth between individuals at the same stage of dental development as KNM-WT 15000 – eruption of M2s but not M3s – and adult individuals with fully fused long bone epiphyses, was determined. Results were then applied to KNM-WT 15000, and his adult size estimated from skeletal dimensions using modern human prediction formulae. Using this approach, adult stature best estimates of 176–180 cm and body mass best estimates of 80–83 kg were obtained. These estimates are close to those estimated directly from longitudinal changes in body length and body mass between 8 and 12 years of age in chimpanzees, the suggested chronological equivalent to KNM-WT 15000's remaining growth period. Thus, even using an African ape growth model, it is likely that KNM-WT 15000 would have attained close to 180 cm in stature (without a slight reduction for his lower cranial height) and 80 kg in body mass as an adult. Other evidence from the East African Early Pleistocene indicates that KNM-WT 15000 was not unusually large-bodied for his time period.

(P2-96) A Single, Simple Triage Method

IntroductionAt this time, no triage method is considered better than another in comparison to the outcome of the casualties. It is important and useful to identify a triage method that can be used for both adults and children at the same time. It should consider the anatomical and physiological differences between adults, children, and infants.ObjectivesTo revise and adapt the current triage system in use in the Piemonte Emergency Medical Services for the first triage in a validated method that is effective for adults, children, and babies in order to unify and simplify the triage system.MethodsIn accordance with pediatricians, the “Triage Sieve” procedure and parameters were revised into a single method.ResultsSetting the height of the casualty was considered to be both quick and easy. In this revised method, all the casualties are classified with the sieve methods, but some changes have been introduced. Casualties with a stature &lt; 59 cm are classified as infants, and are therefore priority T1 (red) in every case. Casualties &gt; 60 cm but &lt; 120 cm in stature are classified as children. Children with a respiratory rate &lt; 15 or &gt; 40 breaths per minute and a heart rate &lt; 80 or &gt; 160 beats per minute are classified as T1.ConclusionsChildren will probably be over-triaged in this method, but the authors do not consider that a substantial problem. This first triage system is simple and effective. But, it has not yet been tested effectively during an actual mass-casualty incident or disaster.

Mechanics of Ambulation With Standard and Spring-Loaded Crutches

Segura A, Piazza SJ. Mechanics of ambulation with standard and spring-loaded crutches. Objective To compare kinetic measures and spatiotemporal variables assessed during walking with standard axillary crutches and spring-loaded crutches. Design A repeated-measures design in which healthy subjects walked with both standard and spring-loaded crutches. Setting Biomechanics research laboratory. Participants Ten healthy young adult volunteers participated. Only female volunteers between 154.9 and 175.3cm in stature were selected to fit the size of the crutches used. Interventions Not applicable. Main Outcome Measures The main outcome measures were kinetic variables such as ground reaction force, rate of force rise, and impulse and spatiotemporal variables such as stride length, stride time, and percentage of stride spent in stance. Results The rate of ground reaction force rise and impulse of the ground reaction force (both P<.001) were reduced by 33% and 13% to 26%, respectively, but the peak ground reaction force was slightly greater ( P=.001) with spring-loaded crutches. The stride time was increased with spring-loaded crutches ( P=.005), but the stride length did not differ significantly ( P=.465). Conclusions The use of spring-loaded crutches altered the mechanics of crutch gait in ways that are likely to reduce overuse injury in crutch users. Further study of spring-loaded crutches is warranted, especially with respect to their energetic efficiency.

The energetics of walking on sand and grass at various speeds

This study investigated the energetics of walking on sand and grass. Fourteen adult males, participated in the study. Participants had a mean age of 34.6 years old, 72.6 kg in mass and 172.5 cm in stature, who walked at 3, 4, 5, 6 and 7 km per h on sand and grass surfaces. Physiological measures included heart rate, O2 uptake, CO2 exhalation, ventilation and relative O2 uptake using a MetaMax Ergospirometer. Speed was controlled in a methodology similar to the ‘Multistage 20-m Shuttle Run Test’. Data were collected during physiological steady rate at each determined speed. A minimum of 2 h rest was enforced between randomized conditions. Results indicate that there was a significant increase (p < 0.01) in all measured physiological indices indicative of energy expenditure when walking on sand compared to grass at 3–7 km per h, with the greatest disparity between the surfaces (ratio = 1.63) in relative O2 consumption at 5 km per h.

Cranial trauma and treatment: a case study from the medieval cemetery of St. Mary Spital, London

AbstractExcavation of the cemetery of the medieval priory of St. Mary‐without‐Bishopsgate, Spitalfields, London from 1998–2001, recovered the remains of over 10,000 individuals. Following initial assessment, skeleton 19893 was found to have suffered three cranial injuries caused by a sharp edged implement. The remains were those of a middle aged adult male of around 172.4 cm in stature, truncated at the hips by a later feature. The remaining elements were well preserved. The cranial injuries were well healed, suggestive of some degree of post‐traumatic care. Evidence of possible surgery was also found. Soft tissue complications would undoubtedly have followed the assault. Battle related trauma was considered, together with evidence of treatment. Whilst the demographic profile of the individual fitted a plausible one for a professional fighter of the medieval period, no firm evidence of occupation could be provided. The case study indicates both the ability of medieval people to survive major trauma and the wealth of information full analysis of the Spitalfields assemblage will provide the osteological community. Copyright © 2004 John Wiley &amp; Sons, Ltd.

Blood lead concentration and children’s anthropometric dimensions in the Third National Health and Nutrition Examination Survey (NHANES III), 1988-1994

Objective: To assess the association between lead exposure and children’s physical growth. Design: Cross-sectional analysis of data from the Third National Health and Nutrition Examination Survey, 1988-1994. Participants: A total of 4391 non-Hispanic white, non-Hispanic black, and Mexican-American children age 1 to 7 years. Measurements and Results: We investigated the association between blood lead concentration and stature, head circumference, weight, and body mass index with multiple regression analysis adjusting for sex, ethnic group, iron status, dietary intake, medical history, sociodemographic factors, and household characteristics. Blood lead concentration was significantly negatively associated with stature and head circumference. Regression models predicted reductions of 1.57 cm in stature and 0.52 cm in head circumference for each 0.48 μmol/L (10 μg/dL) increase in blood lead concentration. We did not find significant associations between blood lead concentration and weight or body mass index. Conclusions: The significant negative associations between blood lead concentration and stature and head circumference among children age 1 through 7 years, similar in magnitude to those reported for the Second National Health and Nutrition Examination Survey, 1976-1980, suggest that although mean blood lead concentrations of children have been declining in the United States for 2 decades, lead exposure may continue to affect the growth of some children. (J Pediatr 1999;134:623-30)

Sex differences in anthropometry for school furniture design

This paper is concerned with anthropometric dimensions of young Koreans and their interrelationships for school furniture design. Ten anthropometric measurements were taken from 1248 subjects, age range 6-17. The study investigated sex differences in interrelationships between body dimensions, to provide suitable sizes of chair and desk for boys and girls. The results showed that stature had a high relationship to body dimensions for school furniture design, and that there were significant sex differences in relationships between stature and the body dimensions. In particular, boys above 126 cm in stature required higher desk and chair heights than girls of the same stature. On the other hand, girls above 120 cm in stature required a larger depth and breadth of chair than boys of the same stature.