scholarly journals Leg stiffness and sprint ability in amputee sprinters

2012 ◽  
Vol 36 (3) ◽  
pp. 312-317 ◽  
Author(s):  
Hiroaki Hobara ◽  
Shuichi Tominaga ◽  
Shingo Umezawa ◽  
Koudai Iwashita ◽  
Atsuo Okino ◽  
...  
Keyword(s):  
Body Mass ◽  
Study Design ◽  
Clinical Relevance ◽  
Cross Sectional Study ◽  
Ground Contact ◽  
Sectional Study ◽  
Mass Model ◽  
Cross Sectional ◽  
Leg Stiffness ◽  
Sprint Ability

Background:Understanding leg stiffness ( Kleg) in amputee sprinters is important for the evaluation of their sprint ability and development of running-specific prostheses (RSP).Objectives:To investigate Klegduring hopping in amputee sprinters.Study Design:Cross-sectional study.Methods:Seven transtibial (TT) and seven transfemoral (TF) amputee sprinters, as well as seven non-active able-bodied subjects, performed one-legged hopping matching metronome beats at 2.2 Hz. Amputees hopped on their sound limb whereas able-bodied (AB) subjects hopped on their dominant limb. Using a spring-mass model, Klegwas calculated from the subjects’ body mass, ground contact and flight times.Results:Both TT and TF sprinters demonstrated significantly higher Klegthan AB subjects. Klegduring hopping on the sound leg significantly correlated with personal records attained in a 100-m sprint in both TT (r = −0.757) and TF sprinters (r = −0.855).Conclusion:The results of the present study suggest that amputee sprinters have a greater Klegduring hopping than inactive non-amputees, and that their sprint ability can be predicted from the Klegduring hopping at 2.2 Hz on the sound limb.Clinical relevanceExercise challenges need to be taken into consideration when planning routine training regimens for amputee sprinters. Furthermore, increased understanding of Klegin amputee sprinters is relevant to evaluate their sprint ability and develop running-specific prostheses.

scholarly journals Overview of Body Mass Index and Blood Pressure of Medical Science Faculty Student in Prima Indonesia University, 2017

2021 ◽  
Vol 3 (1) ◽  
pp. 33-43
Author(s):  
Wienaldi ◽  
Fautia Ristina
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
Body Mass ◽  
Study Design ◽  
Medical Science ◽  
Descriptive Study ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Science Faculty

The aims of this study discussed overview of body mass index and blood pleasure in Medical Science Faculty Student. This research is a descriptive study with a cross-sectional study design, namely how to approach, observe or collect data at the same time 10. Based on the research results, it was found that the majority of BMI students from the Faculty of Medicine UNPRI Medan class 2017 were normal, namely 64 people (64.6%), then followed by students with an overweight BMI of 29 people (29.3%), underweight and obese respectively. only 3 people (3.0%). Based on the results of the study, it was found that the majority of the blood pressure of the 2017 UNPRI Medan Faculty of Medicine students was completely normal (100%).

The Prevalence of Insecticide Treated Net/malaria :cross section study (Preprint)

2019 ◽  
Author(s):  
Chanda Chalela
Keyword(s):  
Study Design ◽  
Age Groups ◽  
Cross Sectional Study ◽  
Malaria Prevalence ◽  
Malaria Patient ◽  
P Value ◽  
Sectional Study ◽  
Cross Sectional ◽  
Itn Use ◽  
Structured Questionnaire

BACKGROUND ABSTRACT Introduction a study on prevalence of ITN use was carried out in Buchi community Kitwe Zambia from August to October 2019 OBJECTIVE Prevalence of ITN in BUchi METHODS Methodology: This was a cross sectional study design. A structured questionnaire was used to ascertain ownership and utilization and oral interviews, 200 households were targeted 844 individual covered across the 200 households. Data was analyzed with SPSS version 23. RESULTS ABSTRACT Introduction a study on prevalence of ITN use was carried out in Buchi community Kitwe Zambia from August to October 2019 Methodology: This was a cross sectional study design. A structured questionnaire was used to ascertain ownership and utilization and oral interviews, 200 households were targeted 844 individual covered across the 200 households. Data was analyzed with SPSS version 23. Findings: household ownership of at least an ITN was 52% and individual utilization at 37.6%, with 0.825 ITN/households and 0.195ITN /individual. Malaria prevalence of 52.4% /household and a 12.4% of the population. With 47.6% malaria patient coming from households with ITN and 60% of households with ITN have insufficient coverage.61% of malaria patient were female and 31 % male. however there was no significant relation between Gender and malaria prevalence in study area (p value was >0.05). Malaria cases distribution with age groups, 0-15yrs old represented 49.5%, 16-30 yrs., was at 27.6% and the over 30 yrs. case were at 22.9% .use of other preventive measures 23% used mosquito repellent ,others methods 1% with those not using any other methods 76%. CONCLUSIONS Conclusion The study showed clearly that malaria still poses a problem .the prevalence rate of malaria was still high 12.4% of the population and 52.4% of households. With high prevalence of malaria of 49.5% for 0-15yrs.the difference between ownership 52% and Utilization 37.6% showed that even household with ITN, the ITN were not sufficient.60% of households with ITN, the ITN were not sufficient for all occupants

scholarly journals Associations between exposure to perfluoroalkyl substances and body fat evaluated by DXA and MRI in 109 adolescent boys

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Mathilde Lolk Thomsen ◽  
Louise Scheutz Henriksen ◽  
Jeanette Tinggaard ◽  
Flemming Nielsen ◽  
Tina Kold Jensen ◽  
...  
Keyword(s):  
Body Fat ◽  
Study Design ◽  
Sulfonic Acid ◽  
Standard Deviation Score ◽  
Cross Sectional Study ◽  
Mass Spectrometry Data ◽  
Perfluoroalkyl Substances ◽  
Sectional Study ◽  
Cross Sectional ◽  
Total Body

Abstract Background Exposure to perfluoroalkyl substances (PFASs) has been associated with changes in body mass index and adiposity, but evidence is inconsistent as study design, population age, follow-up periods and exposure levels vary between studies. We investigated associations between PFAS exposure and body fat in a cross-sectional study of healthy boys. Methods In 109 boys (10–14 years old), magnetic resonance imaging and dual-energy X-ray absorptiometry were performed to evaluate abdominal, visceral fat, total body, android, gynoid, android/gynoid ratio, and total fat percentage standard deviation score. Serum was analysed for perfluorooctanoic acid, perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid, perfluorononanoic acid, and perfluorodecanoic acid using liquid chromatography and triple quadrupole mass spectrometry. Data were analysed by multivariate linear regression. Results Serum concentrations of PFASs were low. Generally, no clear associations between PFAS exposure and body fat measures were found; however, PFOS was negatively associated with abdominal fat (β = -0.18, P = 0.046), android fat (β = -0.34, P = 0.022), android/gynoid ratio (β = -0.21, P = 0.004), as well as total body fat (β = -0.21, P = 0.079) when adjusting for Tanner stage. Conclusions Overall, we found no consistent associations between PFAS exposure and body fat. This could be due to our cross-sectional study design. Furthermore, we assessed PFAS exposure in adolescence and not in utero, which is considered a more vulnerable time window of exposure.

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