Volleyball Technopaths in Senegal

2020 ◽  
Vol 3 (1) ◽  
pp. 01-08
Author(s):  
Dembélé. B ◽  
Mayaki A.H ◽  
Daffé M ◽  
Diouf. AB ◽  
Dia. R ◽  
...  
Keyword(s):  
Lower Limb ◽  
Average Duration ◽  
Team Sports ◽  
Rest Period ◽  
Physical Contact ◽  
Average Weight ◽  
Average Height ◽  
Ankle Sprains ◽  
Contact Sport ◽  
Sub Saharan

Introduction Sport anticipation, address and opposition in two separate spaces. Volleyball knows a frantic expansion with more and more spectacular gestures sources of various traumas. Our study is to analyse the trauma related to the volleyball game; relative to our context. Patients and Methods We collected 69 injuries from 63 licensed players of the Senegalese Volleyball Federation and who had regularly played the Championship and the National Cup for the 2016-2017 season. Data collection was carried out through a completed closed questionnaire. Results Forty (40) boys and twenty-three (23) girls, volleyball players, participated in this study. The average age was 23.6 years old. The average weight was 68.63 kg. The average height was 184.36 cm. The average age of the onset of the practice was 14.79 years. The average duration of practice was 8.67 years. The incidence of lesions was 1.84 per 1000 hours of play with 90.5% of players reporting injury. The 50.7% lesions were on the lower limb. Sprain accounted for 62.3% of the lesions; musculotendinous lesions 14.5% and bruises 11.6%. The majority of lesions, 53.6%, occurred during training. The net area was the site of 50.7% of the lesions. Physical contact accounted for 59.4% of the lesions. The balloon was involved in 33.3% of the lesions. The fall on the playground was responsible for 33.3% of the injuries. Receiving an opponent's weight on the ankle accounted for 76.06% of ankle sprains. The management was functional in 81.2%. It was satisfactory in 89.5%. The average rest period was 4.4 weeks. Conclusion Although considered a non-contact sport and therefore less virulent, relative to other team sports; volleyball is also a source of trauma. Beyond its originality to be realized in a sub-Saharan country; this study confirms the universality of the trauma related the volleyball, a sport that continues to take off.

scholarly journals Characteristics of injuries in adolescent basketball athletes

2021 ◽  
Vol 11 (4) ◽  
pp. 711-721
Author(s):  
Yulingga Nanda Hanief ◽  
Prisca Widiawati
Keyword(s):  
Ankle Joint ◽  
Female Athletes ◽  
Training Session ◽  
Cross Sectional Study ◽  
Physical Contact ◽  
Average Weight ◽  
Average Height ◽  
Cross Sectional ◽  
Warm Up ◽  
Study Approach

INTRODUCTION: Basketball is a physical contact sport that involves complex movements such as jumping, spinning, and changing directions, all of which frequently cause injuries. OBJECTIVES: This study aims to understand the characteristics of injuries on adolescent basketball athletes. METHODS: This study uses a descriptive method with a cross-sectional study approach using a web-based questionnaire (Google Forms) consisting of close-ended questions to examine the history, types, factors, and treatments of the injuries experienced by the adolescent basketball athletes at the Student Sports Training Center (Pusat Pelatihan Olahraga Pelajar or PPOP) of DKI Jakarta. The subjects are 14 male and female athletes with an average age of 15.9±1.1 years old, an average height of 172.29±9.33 centimeters, and an average weight of 65.71±10.06 kilogram. The research instrument is a questionnaire distributed online in the form of Google Forms. A validity test was conducted on the questionnaire using Aikens. Data Questionnaire result data were analyzed using a percentage analysis on the answers to each question in the questionnaire. RESULTS: The results revealed that 76% of the athletes experienced injuries in the lower limb, with the most frequent injury in the ankle joint (45%). Furthermore, the athletes also stated that sprains/twists are the most experienced type of injury (42%). The training sessions were when 79% of the athletes experienced their injuries, whereas the other 21% experienced them during the matches. CONCLUSIONS: The results of this study cannot generalize the findings because it only involved 14 participants, which is also a limitation of this study, but these findings report that the greater injury that occurs during exercise is the ankle joint, so the authors suggest doing an adequate warm-up. Before starting a training session or during a competitive training session, preventing injuries is the best approach for athletes to reduce their occurrence.

scholarly journals Soft Tissue Mobilization and Stretching for Shoulder in CrossFitters: A Randomized Pilot Study

2021 ◽  
Vol 18 (2) ◽  
pp. 575
Author(s):  
Marcos Jusdado-García ◽  
Rubén Cuesta-Barriuso
Keyword(s):  
Soft Tissue ◽  
Internal Rotation ◽  
Repeated Measures ◽  
Control Group ◽  
Average Weight ◽  
Average Height ◽  
Shoulder Injury ◽  
Glenohumeral Internal Rotation Deficit ◽  
Posterior Shoulder ◽  
Soft Tissue Mobilization

Background. The shoulder in CrossFit should have a balance between mobility and stability. Glenohumeral internal rotation deficit and posterior shoulder stiffness are risk factors for overhead shoulder injury. Objective. To determine the effectiveness of instrument-assisted soft tissue mobilization and horizontal adduction stretch in CrossFit practitioners’ shoulders. Methods: Twenty-one regular CrossFitters were allocated to experimental (stretching with isometric contraction and instrument-assisted soft tissue mobilization) or control groups (instrument-assisted soft tissue mobilization). Each session lasted 5 min, 2 days a week, over a period of 4 weeks. Shoulder internal rotation and horizontal adduction (digital inclinometer), as well as posterior shoulder stretch perception (Park scale), were evaluated. Shapiro–Wilk test was used to analyze the distribution of the sample. Parametric Student’s t-test was used to obtain the intragroup differences. The inter- and intra-rater differences were calculated using a repeated measures analysis of variance (ANOVA). Results. Average age was 30.81 years (SD: 5.35), with an average height of 178 (SD: 7.93) cm and average weight of 82.69 (SD: 10.82) kg. Changes were found in the experimental group following intervention (p < 0.05), and when comparing baseline and follow-up assessments (p < 0.05) in all variables. Significant differences were found in the control group following intervention (p < 0.05), in right horizontal adduction and left internal rotation. When comparing the perception of internal rotation and horizontal adduction in both groups, significant differences were found. Conclusions. Instrument-assisted soft tissue mobilization can improve shoulder horizontal adduction and internal rotation. An instrument-assisted soft tissue mobilization technique yields the same results alone as those achieved in combination with post-isometric stretch with shoulder adduction.

ESTABLISHING THE NORMAL GAIT OF CHINESE YOUTH BASED ON THE PLANTAR PRESSURE TEST: AN EXPERIMENTAL STUDY

2021 ◽  
pp. 2150038
Author(s):  
LONG-BIN SHEN ◽  
HUI OUYANG ◽  
YI-XUAN HUANG ◽  
RUI PAN ◽  
JIAN-LIANG LU ◽  
...  
Keyword(s):  
Plantar Pressure ◽  
Evaluation System ◽  
Maximum Pressure ◽  
Average Weight ◽  
Average Height ◽  
Double Blind ◽  
Chinese Youth ◽  
Normal Gait ◽  
Gait Parameters ◽  
System Data

Objective: This study will measure the geometric and pressure centerlines of the foot’s plantar region in healthy Chinese youth to construct a gait norm. Methods: In the present experiment, 203 healthy college students and postgraduates (90 males and 113 females) were recruited as subjects. Their average age was [Formula: see text] years old, average height was [Formula: see text][Formula: see text]cm, and average weight was [Formula: see text][Formula: see text]kg. A double-blind method was used in this experiment. The plantar pressure and gait parameters of time and space among subjects were tested using a gait and balance function-training evaluation system. Data were collected using five pressure-sensor plates, based on the distribution in the geometric and pressure centers of the foot’s plantar area, according to the calculation formula of biomechanics. Results: From 20 selected subjects, the experiment gathered a total of 197 data points from the plantar pressure during walking. The results defined the foot’s centerline of maximum pressure while walking and showed that the pressure and geometric centerlines tended to converge and overlap in normal youth, irrespective of gender. In addition, differences were found between the foot’s centerline of pressure and the geometric and pressure centerlines of the plantar. Conclusion: This study showed that the plantar’s pressure and geometric centerlines can be used as a reference to assess normal gait in Chinese youth.

scholarly journals Can foot angle influence the risk of injury to the lower limb joints during a field hockey hit?

2019 ◽  
Vol 5 (1) ◽  
pp. e000568
Author(s):  
Frances E Feeley ◽  
Graham P Arnold ◽  
Sadiq Nasir ◽  
Weijie W Wang ◽  
Rami Abboud
Keyword(s):  
Lower Limb ◽  
Injury Risk ◽  
Knee Injury ◽  
Body Part ◽  
Ankle Sprains ◽  
Field Hockey ◽  
Joint Angles ◽  
Lateral Ankle ◽  
Risk Of Injury ◽  
Foot Position

ObjectivesThe lower limb is widely reported as the most commonly injured body part in the field of hockey, more specifically lateral ankle sprains and internal knee injury. Despite this, there remains limited understanding of how the biomechanics of the sport could be adapted to minimise injury. The aim of this study was to propose a foot position during the hockey hit that results in the smallest joint angles and moments, from a total of four different foot positions: 0°, 30°, 60° and 90°, which may correlate to injury risk.MethodEighteen players from the local University Ladies Hockey Club participated in this study. Each player was required to perform a hit with their lead foot in four different positions: 0°, 30°, 60° and 90°, where 0° was a lead foot position perpendicular to the direction of motion of the ball. Angles and moments were calculated with the Vicon system using force plates and motion analysis.ResultsSignificant differences (p<0.05) were found between the angles and moments of the four foot positions tested, indicating that foot angle can influence the degree of angulation, and moments, produced in the lower limb joints during the hockey hit.ConclusionThere is a relationship between lead foot position and the angles and moments produced in the lower limb joints during the hockey hit, and this may correlate with injury risk.

scholarly journals Breeding biology of coppersmith barbet, Megalaima haemacephala (Müller, 1776)

2013 ◽  
Vol 31 ◽  
pp. 31-34
Author(s):  
Noor Jahan Sarker ◽  
M Firoj Jaman ◽  
Shariar Mustafa ◽  
Md Saidur Rahman
Keyword(s):  
Incubation Period ◽  
Breeding Season ◽  
Breeding Success ◽  
Brood Size ◽  
Botanical Garden ◽  
Egg Laying ◽  
Breeding Biology ◽  
Average Weight ◽  
Average Height ◽  
Average Depth

Breeding biology of the Coppersmith barbet, Megalaima haemacephala (Müller, 1776) was carried out between February, 2006 and January, 2007 at Sharawardy Uddyan, Ramna Park, Curzon Hall and National Botanical Garden. The breeding season started from December and ended in June. In total 20 nests were observed, of which 10 nests were studied in details in four study areas. The coppersmith barbet mostly preferred to make holes on the branches of koroi (Albizzia procera) for nesting. Egg laying started on 15th February in the study areas. Average height of nests from the ground was 9.7m and average depth and diameter of the holes was 29.20cm and 4.46cm respectively. New holes were constructed yearly or the old one was reused. Both the sexes took part in incubation of eggs, brooding and feeding to the nestlings. A total of 30 eggs were laid in 10 nests. Clutch size varied from 2 – 4 eggs (average: 3 eggs). Among them, 20 (66.67%) eggs were hatched and the rest 10 (33.33%) were unhatched and lost. Average incubation period was 14 days. The male and the female incubated the eggs for an average of 27.44 minutes/ hours and 32.56 minutes/ hours, respectively. Average number of nestlings (brood size) per nest was 2. Out of 20 nestlings, 16 left their nests successively. The breeding success was 53.33% in relation to the number of eggs laid and 80% in relation to nestlings hatched. The average weight of eggs and nestlings was 3.59g and 9.33g, respectively. The main causes of loss of the eggs and nestlings were human interference, predation and ectoparasitic infections. Insects and fruits were fed to the nestlings by their parents.DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15397Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 31-34 

Taller but thinner: trends in child anthropometry in Senegal, 1990–2015

2020 ◽  
Vol 23 (13) ◽  
pp. 2365-2372
Author(s):  
Michel Garenne
Keyword(s):  
Economic Status ◽  
Demographic And Health Surveys ◽  
Average Weight ◽  
Average Height ◽  
Linear Regression Models ◽  
Income Per Capita ◽  
Socio Economic Status ◽  
Control And Prevention ◽  
Per Capita ◽  
Nationally Representative

AbstractObjective:To investigate trends in child anthropometry in Senegal between 1990 and 2015 and relate them with potential causes. Several hypotheses were tested: changes in health status, income, diet and socio-economic status.Design:Statistical analysis of trends in anthropometric data: height, weight, BMI and associated Z-scores calculated with the CDC-2000 standard (Centers for Disease Control and Prevention): height-for-age (HAZ), weight-for-age (WAZ) and weight-for-height (WHZ). Trends were fitted with linear regression models and were related with changes in health and socio-economic status.Setting:Nine nationally representative samples of Senegalese children aged 12–59 months, taken between 1986 and 2017 by Demographic and Health Surveys (DHS).Participants:Children aged 12–59 months.Results:Over the 25 years of investigation, the average height of children increased by +1·88 cm, their average weight by +0·10 kg, but their BMI decreased by −0·53 kg/m2. Corresponding changes expressed in Z-scores were +0·454 in HAZ, +0·109 in WAZ and −0·302 in WHZ. This pattern of decreasing stunting while increasing wasting was correlated with decreasing child mortality, despite small changes in income per capita and in adult heights or BMI. Largest improvements in HAZ were among the lower socio-economic strata, while largest declines in WHZ were among higher socio-economic strata.Conclusions:Decline in stunting appeared associated primarily with the control of infectious diseases, also responsible for the mortality decline. Increase in wasting was surprising. It appears associated with small changes in income per capita, and therefore in diet, in a context of increasing height.

scholarly journals The Relationship between Metabolic Control and Growth in Children with Type I Diabetes Mellitus in Southwest of Iran

Scientifica ◽  
2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Shide Assar ◽  
Koroush Riahi ◽  
Shiva Bashirnezhad ◽  
Leila Yazdanpanah ◽  
Seyed Mahmoud Latifi
Keyword(s):  
Metabolic Control ◽  
Type I Diabetes ◽  
Physical Growth ◽  
Average Weight ◽  
Average Height ◽  
Type I ◽  
Poor Metabolic Control ◽  
Significant Difference ◽  
Southwest Of Iran ◽  
The Relationship

Background. Metabolic control is an important factor in growth of children with type I diabetes. This study assessed the relationship between growth and metabolic control in such children.Materials and Methods. 83 children with diabetes were studied. They were examined for weight and height gain and HbA1C was quantified every 3 months for one year. The growth process was studied in patients who were divided into 3 groups according to their HbA1C amounts, consisting of good, intermediate, and poor metabolic control.Results. Mean age of cases was 7.6 ± 2. The presenting sign at the onset of disease was diabetic ketoacidosis in 44.6%. The average HbA1C amount was 8.89%. The average weight SDS at diagnosis was −0.18 and at the end of the study was 0.45 (P<0.001). The average height SDS at diagnosis was −0.04 and at the end of the study was −0.07 (P=0.64). A significant difference in weight SDS changes was only seen between patients with good and poor metabolic control (P=0.04).Conclusion. Poor metabolic control can decrease height growth but has minimal influence on weight. Metabolic control was not the only predictive factor of physical growth in children with diabetes.

Post-partum events and fertility control in Kinshasa, Zaïre

1990 ◽  
Vol 22 (2) ◽  
pp. 197-211 ◽  
Author(s):  
Jane T. Bertrand ◽  
C. Chirhamolekwa ◽  
B. Djunghu ◽  
K. Chibalonza ◽  
K. Mahama
Keyword(s):  
Urban Population ◽  
Average Duration ◽  
Post Partum ◽  
Fertility Control ◽  
Sub Saharan Africa ◽  
Sexual Abstinence ◽  
Relative Duration ◽  
Contraceptive Prevalence ◽  
Post Partum Period ◽  
Sub Saharan

SummaryContraceptive prevalence surveys from sub-Saharan Africa typically show low rates of method use. The current study of one zone in Kinshasa, Zaïre, provides a more detailed view of fertility control in an urban population by examining the relative duration of breast-feeding, amenor-rhoea and sexual abstinence during the post-partum period. While motivations to prevent pregnancy remain high until the youngest child is over 24 months, the average duration of abstinence is only 4 months. This paper describes the methods women use to avoid pregnancy and the changes over the post-partum period.

Support Force Measures of Midsized Men in Seated Positions

2006 ◽  
Vol 129 (1) ◽  
pp. 58-65 ◽  
Author(s):  
Tamara Reid Bush ◽  
Robert P. Hubbard
Keyword(s):  
Standard Deviation ◽  
Repeated Measures ◽  
Average Weight ◽  
Average Height ◽  
Shear Forces ◽  
Normal Forces ◽  
Repeated Measures Analysis ◽  
Support Force ◽  
Inclination Angles ◽  
Four Levels

Two areas not well researched in the field of seating mechanics are the distribution of normal and shear forces, and how those forces change with seat position. The availability of these data would be beneficial for the design and development of office, automotive and medical seats. To increase our knowledge in the area of seating mechanics, this study sought to measure the normal and shear loads applied to segmental supports in 12 seated positions, utilizing three inclination angles and four levels of seat back articulation that were associated with automotive driving positions. Force data from six regions, including the thorax, sacral region, buttocks, thighs, feet, and hand support were gathered using multi-axis load cells. The sample contained 23 midsized subjects with an average weight of 76.7kg and a standard deviation of 4.2kg, and an average height of 1745mm with a standard deviation of 19mm. Results were examined in terms of seat back inclination and in terms of torso articulation for relationships between seat positions and support forces. Using a repeated measures analysis, significant differences (p<0.05) were identified for normal forces relative to all inclination angles except for forces occurring at the hand support. Other significant differences were observed between normal forces behind the buttocks, pelvis, and feet for torso articulations. Significant differences in the shear forces occurred under the buttocks and posterior pelvis during changes in seat back inclination. Significant differences in shear forces were also identified for torso articulations. These data suggest that as seat back inclination or torso articulation change, significant shifts in force distribution occur.

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