scholarly journals Age-Related Differences in Hamstring Flexibility in Prepubertal Soccer Players: An Exploratory Cross-Sectional Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Federico Abate Daga ◽  
Marco Panzolini ◽  
Ruben Allois ◽  
Luca Baseggio ◽  
Samuel Agostino
Keyword(s):  
Regression Analysis ◽  
Ordinal Regression ◽  
The Body ◽  
Soccer Players ◽  
Cross Sectional ◽  
Ordinal Regression Analysis ◽  
Age Related ◽  
Hamstring Flexibility ◽  
Post Hoc ◽  
One Way Anova

This study aimed to investigate the hamstring flexibility rate among prepubertal soccer players from U8 to U12 and the role of age and soccer years of practice on the course of hamstring flexibility. Six hundred eleven young Italian soccer players from a local soccer school in Turin were recruited for this research and assigned to each group according to their chronological age (U8 = 124 players; U9 = 130 players; U10 = 151 players; U11 = 89 players; and U12 = 120 players). Hamstring flexibility was measured using the Sit and Reach Test (SAR), while data analysis was run using a one-way analysis of variance (one-way ANOVA). Furthermore, Tuckey’s post hoc was used to determine differences among the classes of age. Finally, a bivariate ordinal regression analysis was used to evaluate a potential association between age categories and hamstrings flexibility. In addition, multivariable ordinal regression was used to analyze this relationship adjusted for the Body Mass Index (BMI). The one-way ANOVA showed significant differences in flexibility among groups (F = 32.76, P < 0.0001). Tuckey’s post hoc identified significant differences between U8 and U10 (p < 0.01; −2,39 cm of hamstring stretching), U8 and U11 (p < 0.05; −2.19 cm), U8 and U12 (p < 0.0001; −5.90), U9 and U12 (p < 0.0001; −4.98 cm), U10 and U12 (p < 0.0001; −3.5 cm), U11 and U12 (p < 0,001; −3.70 cm). In the bivariate ordinal regression analysis, there was a negative association between the age categories and hamstrings flexibility (R2 = 0.137; p < 0.0001). The association persisted in multivariable ordinal regression analysis adjusted for BMI (R2 = 0.138; p < 0.0001). This study underlines changes in hamstring flexibility across different age groups of prepubertal soccer players. The older and more experienced in soccer are less flexible than the younger, considering the hamstring muscles. Thus, appropriate stretching protocols should be included in prepubertal soccer training to avoid the risk of lead players to excess hamstring tightness.

scholarly journals Age-Related, Sport-Specific Adaptions of the Shoulder Girdle in Elite Adolescent Tennis Players

2014 ◽  
Vol 49 (5) ◽  
pp. 647-653 ◽  
Author(s):  
Ann M. Cools ◽  
Tanneke Palmans ◽  
Fredrik R. Johansson
Keyword(s):  
Muscle Strength ◽  
Shoulder Girdle ◽  
Vital Role ◽  
The Body ◽  
Injury Incidence ◽  
Shoulder Injury ◽  
Serratus Anterior ◽  
Cross Sectional ◽  
Tennis Players ◽  
Age Related

Context Tennis requires repetitive overhead movements that can lead to upper extremity injury. The scapula and the shoulder play a vital role in injury-free playing. Scapular dysfunction and glenohumeral changes in strength and range of motion (ROM) have been associated with shoulder injury in the overhead athlete. Objective To compare scapular position and strength and shoulder ROM and strength between Swedish elite tennis players of 3 age categories (<14, 14–16, and >16 years). Design Cross-sectional study. Setting Tennis training sports facilities. Patients or Other Participants Fifty-nine adolescent Swedish elite tennis players (ages 10–20 years) selected based on their national ranking. Main Outcome Measure(s) We used a clinical screening protocol with a digital inclinometer and a handheld dynamometer to measure scapular upward rotation at several angles of arm elevation, isometric scapular muscle strength, glenohumeral ROM, and isometric rotator cuff strength. Results Players older than 16 years showed less scapular upward rotation on the dominant side at 90° and 180° (P < .05). Although all absolute scapular muscle strength values increased with age, there was no change in the body-weight–normalized strength of the middle (P = .9) and lower (P = .81) trapezius or serratus anterior (P = .17). Glenohumeral internal-rotation ROM and total ROM tended to decrease, but this finding was not statistically significant (P = .052 and P = .06, respectively). Whereas normalized internal-rotator strength increased from 14 to 16 years to older than 16 years (P = .009), normalized external-rotator and supraspinatus strength remained unchanged. Conclusions Age-related changes in shoulder and scapular strength and ROM were apparent in elite adolescent tennis players. Future authors should examine the association of these adaptations with performance data and injury incidence.

scholarly journals Body mass index and weight status misperception among a sample of college students in Yogyakarta, Indonesia

2017 ◽  
Vol 16 (2) ◽  
pp. 225-232
Author(s):  
Janatin Hastuti ◽  
Neni Trilusiana Rahmawati ◽  
Rusyad Adi Suriyanto
Keyword(s):  
College Students ◽  
Body Mass Index ◽  
Regression Analysis ◽  
Body Mass ◽  
Weight Control ◽  
Weight Status ◽  
Medical Science ◽  
Normal Weight ◽  
Ordinal Regression ◽  
Ordinal Regression Analysis

Background: Weight status perception associates with objective weight status and is important in the management of weight control. To date, perception of weight status among Indonesian youths has not been reported.Objectives: This study aimed to examine the association between body mass index and weight status perception in a sample of college students in Yogyakarta Province.Materials and Methods: A sample of 209 boys and 269 girls of college students in Yogyakarta Province were measured for their stature and body weight. Body mass index was calculated (BMI). Data of demographic, exercise, and diet were collected. Weight status perception was based on participant responses to a question regarding how they classified their own body size as underweight, normal, overweight, or obese. Ordinal regression analysis was performed to evaluate factors associated with weight status misperception among boys and girls.Results: Overall, 43.5% of boys and 37.5% of girls misclassified their own weight status by actual BMI. Of particular note, 75.9% of obese boys and 78.6% of obese girls underestimated their weight status as overweight or normal weight. Whereas, 9.1% and 23.4% of normal weight boys and girls respectively, overestimated their weight status. Ordinal regression analysis revealed that, weight status misperception from others was significantly contributed (p<0.01) to misperception of weight status among boys and girls with OR of 10.31 and 8.13 respectively. Diet practicing was significantly correlated with weight status misperception in boys (p<0.05) with an OR of 19.57.Conclusions: Weight status misperception was prevalent among normal weight and obese students. Obese students of both gender and normal weight boys tended to underestimate their weight status, whereas normal weight girls were likely to overestimate their weight status.Bangladesh Journal of Medical Science Vol.16(2) 2017 p.225-232

scholarly journals Differences in anthropometric characteristics between young soccer players (U19) members of the best soccer clubs in Montenegro, Bosnia and Herzegovina, and Kosovo

2020 ◽  
Vol 24 (1) ◽  
pp. 21-25
Author(s):  
J. Gardasevic ◽  
D. Bjelica ◽  
I. Vasiljevic
Keyword(s):  
Body Composition ◽  
Bosnia And Herzegovina ◽  
Balkan Peninsula ◽  
The Body ◽  
Southern Region ◽  
Soccer Players ◽  
Test Results ◽  
Fat Percentage ◽  
Anthropometric Characteristics ◽  
Post Hoc

Background and Study Aim: The aim of this research was to determine the differences between the young soccer players (U19) in terms of anthropometric characteristics and body composition. We considered players of three the most successful clubs in three countries of the southern region of the Balkan Peninsula. Material and Methods: The first sub-sample of the subjects was consisted of 17 players of OFC Titograd from Montenegro of the average age 17.12±.69. The second sub-sample was consisted of 14 players of FC Siroki Brijeg from Bosnia and Herzegovina of the average age of 18.14±.86. The last sub-sample of the examinees was consisted of 15 players of FC Feronikeli from Kosovo of the average age 18.07±.46. Anthropometric characteristics in the body composition were evaluated by a battery of 11 variables. The significance of the differences between the young soccer players in the anthropometric characteristics and variables for assessing body composition were determined by ANOVA and LSD Post Hoc test. Results: The young soccer players of the three mentioned clubs have statistically significant differences by the two variables that estimate the upper leg skinfold and fat percentage. The young soccer players of OFC Titograd are significantly better in variable upper leg skinfold than other players. The young soccer players of FC Feronikeli are significantly better in variable fat percentage than players of OFC Titograd. Conclusions: The results can be useful for coaches of other clubs for making a comparison of their soccer players with the young soccer players in this research.

scholarly journals Serum Interleukin-2 (IL-2) Levels in Untreated and Treated in Batak Tribe Patients with Schizophrenia

2021 ◽  
Vol 4 (1) ◽  
pp. 1449-1460
Author(s):  
Julius Martin Siagian ◽  
Elmeida Effendy ◽  
Mustafa M. Amin
Keyword(s):  
General Hospital ◽  
Pearson Correlation ◽  
Interleukin 2 ◽  
Cross Sectional ◽  
Welch Test ◽  
Pearson Correlation Test ◽  
Healthy Control ◽  
The Difference ◽  
Post Hoc ◽  
One Way Anova

To find out the difference of serum IL-2 levels between untreated and treated in the Batak tribe patients with schizophrenia and healthy control and also to find out the association between serum IL-2 levels with PANSS score in the Batak tribe patients with schizophrenia. This study was cross-sectional approach using a one-way ANOVA welch test and to find a correlation between serum IL-2 levels with PANSS score in the Batak tribe patients with schizophrenia which is conducted in Prof. Dr. M. Ildrem Psychiatric Hospital Medan and Dr. Pirngadi General Hospital Medan from September 2019-November 2019. Subjects of untreated were 55 subjects and treated in the Batak tribe patients with schizophrenia were 55 subjects and healthy control were 55 subjects. There were significant differences between these three groups using post hoc Games-Howell test on the value of p<0.001 and also been found there was a significant correlation between serum IL-2 levels with PANSS score in the Batak tribe patients with schizophrenia using the Pearson correlation test (r=0.599, p=0.001 and r=0.501, p=0.001). It was founded that there were significant differences between serum IL-2 levels in three groups and also founded there was a significant correlation between serum IL-2 levels with PANSS score in the Batak tribe patients with schizophrenia. 

Technical attributes of Australian youth soccer players: Implications for talent identification

2016 ◽  
Vol 11 (6) ◽  
pp. 819-824 ◽  
Author(s):  
Brad S Keller ◽  
Annette J Raynor ◽  
Lyndell Bruce ◽  
Fiona Iredale
Keyword(s):  
The State ◽  
Soccer Players ◽  
Receiver Operating Curve ◽  
Cross Sectional ◽  
Talent Identification ◽  
Youth Soccer ◽  
Technical Ability ◽  
State Elite ◽  
Significant Difference ◽  
Post Hoc

Objectives To determine whether the technical ability of Australian youth soccer players could distinguish between various playing levels. Design A cross-sectional observational design was used with each player required to complete four technical tests. Methods Sixty-two participants were representatives of three cohorts of youth soccer in Australia: national elite ( n = 18), state elite ( n = 22) and sub-elite ( n = 22). The technical tests used were Loughborough Short Passing Test (LSPT), long passing test (LPT), shooting test and speed dribbling, with all players familiarised with the tests prior to data collection. Differences between cohorts were analysed using a multiple analysis of variance test with follow-up analyses of variance and Tukey Honest Significant Difference post-hoc test, which were subsequently used to inform a sensitivity analysis, more specifically a bootstrapped receiver operating curve to determine cut-off scores for each variable. Results The national elite cohort scored better than state- and sub-elite cohorts on the LSPT, however, the state elite produced the fastest time before penalties. The sub-elite cohort scored less points on the LPT compared to both national- and state-elite cohorts, on both feet. In regards to speed dribbling, national-elite players were faster than both the state- and sub-elite cohorts. Shooting accuracy and velocity were able to discriminate the national- and sub-elite cohorts on the dominant foot, with shooting velocity on the nondominant foot being faster for the national elite compared to both the state- and sub-elite cohorts. Conclusions A number of differences in technical ability were identified between varying levels of Australian youth soccer players. Youth soccer coaches and sports scientists should use the cut-off scores for the technical tests in the talent identification and development process, with aspiring players aiming to reach these levels.

scholarly journals Evaluation of Dental Anxiety and Fear in Patients who Admitted to the Faculty of Dentistry: Which Patients are More Risky in terms of Dental Anxiety.

1970 ◽  
Vol 29 (6) ◽  
Author(s):  
Burkay YAKAR ◽  
Türkkan Öztürk KAYGUSUZ ◽  
Edibe PİRİNÇCİ
Keyword(s):  
Dental Treatment ◽  
Dental Health ◽  
Dental Anxiety ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Post Hoc ◽  
One Way Anova ◽  
Anxiety And Fear ◽  
Dental Appointments

Background: Dental anxiety and fear make the dental operation and the treatment difficult. Beside that it causes the delays or absence in the dental appointments so it leads to problems for oral and dental health. The aim of this study was to investigate the frequency of dental anxiety, the factors affecting dental anxiety and the effects of dental anxiety on oral dental health of the participants.Methodology: We conducted a hospital-based, cross-sectional study among 342 patients attending the outpatient clinic of a tertiary dentistry hospital. Dental anxiety and trait anxiety levels of the participants measured using MDAS and STAI scales. Weconducted the student t-test, One-way Anova and Tukey’s post hoc for the analysis of our data. The Pearson’s correlation analysis has been used for the analysis of two different quantitative data obtain from MDAS and STAI scales.Results: The age average of 342 participant of our research was 34,41±11,78. 59,1% of our participants was women. (n=202) Dental anxiety was existing in the 42,1% of the participants (n=144). 56,4% of the participants have had a hard and painful dental treatment experiences. 15,2% of our participants (n=52) had MDAS 19 point or more.Conclusions: High and statistically significant dental anxiety scores have been detected for the patients who are women, housewives, who had uneasy and painful dental treatment stories who have personel inclinations to the anxiety. Examinations directed to the factors which would increase the dental anxiety, may prevent possible complications and also the risk carried by the patients related to the dental health may be estimated with the help of this kind of examinations. 

A cross-sectional study on foot loading patterns in elite soccer players of different ages

2020 ◽  
Vol 33 (6) ◽  
pp. 939-946
Author(s):  
Thilo Hotfiel ◽  
Tobias Golditz ◽  
Jessy Wegner ◽  
Johannes Pauser ◽  
Matthias Brem ◽  
...  
Keyword(s):  
Plantar Pressure ◽  
Age Groups ◽  
Relative Increase ◽  
Stress Fractures ◽  
Soccer Players ◽  
Cross Sectional ◽  
Pressure Distributions ◽  
Age Related ◽  
Loading Patterns ◽  
Foot Loading

BACKGROUND: Alterations in plantar loading patterns are risk factors for stress injuries of the lower limb, particularly of the foot and ankle. Epidemiological studies have revealed a higher incidence of soccer-related stress fractures of the fifth metatarsal (MT V) in younger athletes than in their adult counterparts. OBJECTIVE: The aim of the present study was to assess the plantar pressure distributions of members of four high-level soccer teams of different age groups to identify age-related differences in loading patterns. METHODS: A total of 65 elite soccer players were included in the study. Data were computed with sensor-loaded insoles (pedar® X system, novel Inc., Munich, Germany) while the players ran in soccer shoes. Plantar pressures for nine defined regions on the preferred and nonpreferred foot were analyzed. RESULTS: The participants consisted of 17 elite male soccer professionals from the first national league (mean 23 years, height 184 cm, weight 81 kg), 14 players from the under-21 squad (U21, 20 years, 180 cm, 75 kg), 15 players from the U17 squad (16 years, 176 cm, 69 kg) and 19 players from the U16 squad (15 years, 179 cm, 70 kg). We detected statistically significantly elevated peak pressures on the lateral aspects of the nonpreferred foot compared with the preferred foot in the U16 and U17 players, corresponding to a relative increase by 29% (p= 0.044) in the lateral midfoot, a relative increase by 24% (p= 0.031) in MT heads 4–5 in the U16 players and a difference of 18% (p= 0.049) in the lateral midfoot in the U17 players. In contrast, the U21 and adult professional players displayed symmetric plantar pressure distributions in all foot regions. CONCLUSIONS: In contrast to adult elite soccer players, adolescents demonstrate asymmetric foot loading patterns with increased peak loads in the lateral aspects of the nonpreferred foot. Our results may provide some explanation for MT V stress fractures that occur in elite adolescents.

Phenomenon of Pain In Thalassemia: A Prospective Analysis by the Thalassemia Clinical Research Network (TCRN)

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 256-256
Author(s):  
Dru Haines ◽  
Susan Carson ◽  
Sage Green ◽  
Marie Martin ◽  
Thomas D. Coates ◽  
...  
Keyword(s):  
Chronic Pain ◽  
Regression Analysis ◽  
Pain Relief ◽  
Research Funding ◽  
Ordinal Regression ◽  
Research Network ◽  
Beta Thalassemia ◽  
Lower Back ◽  
Ordinal Regression Analysis ◽  
One Year

Abstract Abstract 256 Background: Pain is not a symptom generally associated with thalassemia. However, healthcare providers have anecdotally noted increasing patient reports of chronic pain over the last decade creating an impetus for the TCRN to conduct this prospective, observational assessment of pain in patients with thalassemia over the age of 12. Study goals include assessment of pain prevalence, severity and sites and whether these factors are impacted by age, gender or diagnosis. Methods: Pain was assessed quarterly using the Brief Pain Inventory (BPI). Two hundred fifty-one thalassemia patients ranging in age from 12 to 71 (average age of 28.75) receiving care at one of 12 thalassemia centers across the US and Canada participated in the study. Fifty-four percent of participants were female. Diagnoses included: Beta Thalassemia (80%), E Beta thalassemia (11%), Hemoglobin H and H Constant Spring (6%) and other thalassemia conditions (3%). Eighty percent of participants were chronically transfused, 6% intermittently transfused and 14% had never been transfused. This report reviews baseline findings. Results: At study entry, 64% of the 251 participants reported experiencing pain over the last four weeks, of whom 21% reported pain on a daily basis. In comparison, 26% of the American public, 20 years and older, reported pain over a one month period according to National Center for Health Statistics data, 2006. Ordinal regression analysis of participant ratings of worst, least, and average pain over the last seven days demonstrated significant (p<0.001) correlation of increased age with increased pain across all categories irrespective of diagnosis, transfusion status or gender. Similarly, ordinal regression analysis revealed that pain increased with participant age and significantly correlated (p<0.001) with a negative impact of pain on patient's affect and activity as measured by the BPI interference scales. Eighty-two percent of those reporting pain indicated lower back as a site of pain. In logistic regression models, lower back (p=0.046), arm (p=0.047) and hip (p=0.009) pain significantly increased with age. The number of bodily pain sites (p=0.033) also increased with age which was determined using linear regression. Among patients reporting pain in the last seven days, 77% reported having pain for one year or longer and 26% reported pain for 5 or more years. Participants reporting pain in the last 7 days identified the following reasons for their pain: thalassemia (60%), low hemoglobin (55%), bone pain (37%) and muscle spasm (30%). Participants indicated multiple methods of managing pain including: blood transfusion (54%), rest (51%) massage (46%) and heat (39%). Medications were the most frequently cited pain intervention (72 % of participants) with the most common mediations taken being NSAIDs (71%), followed by acetaminophen (48%), short acting narcotics (24%) and long acting narcotics (11%). Twenty-five percent of participants reported they received no pain relief from medications or non-pharmaceutical treatments, and only 4% reported they received complete pain relief with treatment. Half the population reported they gained about 50% relief from pain with treatments. Conclusions: These data show that pain is a significant issue for patients with thalassemia and as patient's age pain increases. Pain assessment should be conducted on a regular basis for all patients with thalassemia since neither transfusion status nor diagnosis are a reliable indicator of pain status. The study also indicates that chronic pain (pain lasting greater than one year) is an issue for thalassemia patients and underscores the need for further study of pain in this population. Analysis of pain follow up data collected at 3 month intervals post baseline is being conducted to assess whether severity levels vary over time. Disclosures: Coates: Novartis: Research Funding, Speakers Bureau. Neufeld:Novartis, Inc: Research Funding; Ferrokin, Inc: Research Funding.

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