scholarly journals Global Position Analysis during Official Elite Female Beach Volleyball Competition: A Pilot Study

2021 ◽  
Vol 11 (20) ◽  
pp. 9382
Author(s):  
Paulo Vicente João ◽  
Alexandre Medeiros ◽  
Henrique Ortigão ◽  
Mike Lee ◽  
Maria Paula Mota
Keyword(s):  
Pilot Study ◽  
Data Collection ◽  
Maximum Velocity ◽  
Physical Demands ◽  
Position Analysis ◽  
Volleyball Players ◽  
Acceleration And Deceleration ◽  
Gps Device

The aim of this study was to quantify the physical demands of female beach volleyball competition with reference to player position, set, and match outcome. Twelve professional players were equipped with a 10 Hz GPS device (Minimax S4, Catapult Sports, Australia). Data collection occurred over 30 official matches, with a total of 50 sets. GPS output variables were related to position (e.g., Defenders and Blockers). Differences between players’ positions were found in Peak Player Load, the distance covered at different intensities, and acceleration and deceleration. Variations during the match were more pronounced for Defenders than for Blockers, with the former increasing the intensity of acceleration and deceleration, and decreasing the velocity of displacements and lower jumps. For Blockers, main variations occurred between the first and second set, with a reduction in velocity displacements and an increase in the intensity of jumps. Defender variables that contributed to victory were high deceleration, velocity, acceleration, and Peak Player Load. The characteristics of Blockers that contributed to victory were maximum velocity and high jumps. Female beach volleyball players seem to have different physiological requirements according to their position. The analysis of these variations throughout the game suggests that a specific player’s position output may be determined by proper and/or opponent tactical schemes.

Systematic medical data collection of intentional injuries during armed conflicts: a pilot study conducted in West Bank, Palestine

2004 ◽  
Vol 32 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Karin Helweg-Larsen ◽  
Ashraf Hasan Abdel-Jabbar Al-Qadi ◽  
Jalal Al-Jabriri ◽  
Henrik Brønnum-Hansen
Keyword(s):  
Pilot Study ◽  
Data Collection ◽  
West Bank ◽  
Medical Data ◽  
Armed Conflicts ◽  
Intentional Injuries ◽  
Medical Data Collection

scholarly journals Functional Gains in Children With Spastic Hemiplegia Following a Tendon Achilles Lengthening Using Computerized Adaptive Testing—A Pilot Study

2018 ◽  
Vol 5 ◽  
pp. 2329048X1881145 ◽  
Author(s):  
Eli Saleh ◽  
Noémi Dahan-Oliel ◽  
Kathleen Montpetit ◽  
Thierry Benaroch ◽  
Rita Yap ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Pilot Study ◽  
Data Collection ◽  
Motor Function ◽  
Gross Motor ◽  
Gross Motor Function ◽  
Gross Motor Function Measure ◽  
Data Collection Instrument ◽  
Spastic Hemiplegia ◽  
Function Measure

Purpose: This pilot study evaluated the outcomes of tendon Achilles lengthening in 12 children (mean age: 11.2 years) with spastic hemiplegia. Methods: Cerebral Palsy Computer Adaptive Tests, the timed up-and-go, the Gross Motor Function Measure, the Gillette Functional Assessment Questionnaire, and the Pediatric Outcomes Data Collection Instrument were administered at baseline and at 6, 12, and 24 months postsurgery. Results: Significant improvement at the latest follow-up (12-24 months following surgery) was seen in all domains of the Cerebral Palsy Computer Adaptive Test: activity ( P = .017), lower extremity ( P = .005), global ( P = .005), pain ( P = .005), and fatigue ( P = .028), as well as in the Gross Motor Function Measure-standing domain ( P = .02) and the mobility domain of the Pediatric Outcomes Data Collection Instrument ( P = .04). Conclusion: These findings indicate that the tendon Achilles lengthening improved functional outcome in these children as measured by tests of physical function, walking speed, and activity performance.

scholarly journals Predictors and Prospective Course of PANS: A Pilot Study Using Electronic Platforms for Data Collection

2020 ◽  
Author(s):  
Elizabeth C. Harris ◽  
Christine A. Conelea ◽  
Michael T. Shyne ◽  
Gail A. Bernstein
Keyword(s):  
Pilot Study ◽  
Data Collection

scholarly journals Increasing Sample Diversity in Psychiatric Genetics – Introducing a new Cohort of Patients with Schizophrenia and Controls from Vietnam – Results from a Pilot Study

2021 ◽  
Author(s):  
VT Nguyen ◽  
A Braun ◽  
J Kraft ◽  
TMT Ta ◽  
GM Panagiotaropoulou ◽  
...  
Keyword(s):  
Pilot Study ◽  
Data Collection ◽  
Predictive Power ◽  
Association Studies ◽  
East Asian ◽  
Genetic Research ◽  
European Ancestry ◽  
Risk Scores ◽  
Genome Wide Association Studies ◽  
Genome Wide

AbstractObjectivesGenome-Wide Association Studies (GWAS) of Schizophrenia (SCZ) have provided new biological insights; however, most cohorts are of European ancestry. As a result, derived polygenic risk scores (PRS) show decreased predictive power when applied to populations of different ancestries. We aimed to assess the feasibility of a large-scale data collection in Hanoi, Vietnam, contribute to international efforts to diversify ancestry in SCZ genetic research and examine the transferability of SCZ-PRS to individuals of Vietnamese Kinh ancestry.MethodsIn a pilot study, 368 individuals (including 190 SCZ cases) were recruited at the Hanoi Medical University’s associated psychiatric hospitals and outpatient facilities. Data collection included sociodemographic data, baseline clinical data, clinical interviews assessing symptom severity and genome-wide SNP genotyping. SCZ-PRS were generated using different training data sets: i) European, ii) East-Asian and iii) trans-ancestry GWAS summary statistics from the latest SCZ GWAS meta-analysis.ResultsSCZ-PRS significantly predicted case status in Vietnamese individuals using mixed-ancestry (R2 liability=4.9%, p=6.83*10−8), East-Asian (R2 liability=4.5%, p=2.73*10−7) and European (R2 liability=3.8%, p = 1.79*10−6) discovery samples.DiscussionOur results corroborate previous findings of reduced PRS predictive power across populations, highlighting the importance of ancestral diversity in GWA studies.

Pilot Study Protocol: Cervical Spine Joint Pain and Stiffness - Accuracy of Physical Assessment in Nursing (Preprint)

2021 ◽  
Author(s):  
Bruno Garrido Soares ◽  
Fatima Raquel Fonseca ◽  
Patrícia Fonseca ◽  
Paulo Jorge Alves
Keyword(s):  
Cervical Spine ◽  
Pilot Study ◽  
Data Collection ◽  
Study Protocol ◽  
Joint Stiffness ◽  
Upper Cervical Spine ◽  
Physical Assessment ◽  
Stomatognathic System ◽  
Upper Cervical ◽  
Quasi Experimental

BACKGROUND Cervical spine dysfunction (CSD) is a problem with high personal, social and economic impact worldwide. Although its etiology is described as multifactorial, there is a need for better clarification. Literature has shown the relationship between the cervical condition, the mandibular functioning and the visceral condition. In order to guide and contribute to the accuracy of the physical assessment performed by nurses, we decided to study the influence of the stomatognathic system (SS) and viscerosomatic reflexes (VR) on pain and joint stiffness of the cervical spine. OBJECTIVE Describe the pilot study protocol of the influence of SS and RV on cervical structures. METHODS Pilot study, with a quasi-experimental design, carried out in 2019, with 50 volunteer participants from the university population of the Academic Federation of Porto, where the influence of the usual intercuspation change, the occlusal deprogramming and the pressure stimulus of the reflex skin region of the ilium/colon in the cervical spine were analyzed. This study was divided into two moments, where we first performed the kinematic and pain analysis in the passive mobilization of the upper cervical spine, using the Motion Capture System® and the Visual Analog Scale. In the second moment, we evaluated the pain threshold on palpation of the erector neck muscles and the structures of the stomatognathic system, using algometry. The influence of viscerosomatic reflexes on the structures of the stomatognathic system was also analyzed. RESULTS Selection and preparation of the data collection site, acquisition of materials, constitution of the sample group and data collection were completed. The analysis of the results is being carried out. CONCLUSIONS The data from this study will allow the observation of the possible influence of SS and VR on pain and range of motion of the upper cervical spine, providing data for future randomized studies. Potential limitations have been identified.

The Effects of Taping on Muscle Activity and Throwing Velocity in Fatigued Baseball Players

2021 ◽  
Vol 3 (1) ◽  
pp. 18-29
Author(s):  
Kara-Lyn R. Harrison ◽  
Paolo Sanzo ◽  
Carlos Zerpa ◽  
Taryn Klarner
Keyword(s):  
Pilot Study ◽  
Muscle Activity ◽  
Muscle Activation ◽  
Performance Enhancement ◽  
Maximum Velocity ◽  
Baseball Players ◽  
Kinesio Tape ◽  
Significant Difference ◽  
Post Test ◽  
And Performance

Due to the repetitive high forces and torques placed on an individual during a baseball pitch, shoulder pain is present in 46-57% of pitchers. Therapeutic taping has been proposed to have beneficial qualities in injury prevention, rehabilitation, and performance enhancement via muscular facilitation. Therefore, the purpose of this pilot study was to investigate the effect of taping on the velocity of an overhead baseball throw and muscle activation patterning of the supraspinatus, infraspinatus, and pectoralis major muscles in baseball players after muscle fatigue was induced. Participants were asked to complete three pre-test maximum velocity overhead throws, a fatiguing protocol, followed by three post-test maximum velocity pitches. There was no statistically significant difference in throwing velocity or muscle activity with the application of the different taping conditions in the three phases of an overhead baseball throw. These finding suggest Kinesio Tape® does not change muscle activation or velocity of overhead baseball throws when compared to a no tape condition.

scholarly journals Determining strength training needs using the force-velocity profile of elite female handball and volleyball players

2020 ◽  
pp. 174795412096404
Author(s):  
Leonidas Petridis ◽  
Gergely Pálinkás ◽  
Zsófia Tróznai ◽  
Bettina Béres ◽  
Katinka Utczás
Keyword(s):  
Velocity Profile ◽  
Strength Training ◽  
Body Mass ◽  
Female Athletes ◽  
Vertical Jump ◽  
Body Height ◽  
Maximum Velocity ◽  
Total Force ◽  
Volleyball Players ◽  
Force Velocity

The aim of this study was to assess the vertical jump performance and the force-velocity profile of elite female handball and volleyball players. Forty-one female athletes were measured, 28 handball players (age: 24.0 ± 3.6 years, body height: 1.75 ± 0.05 m, body mass: 69.0 ± 7.3 kg) and 13 volleyball players (age: 24.1 ± 5.2 years, body height: 1.83 ± 0.07 m and body mass: 74.9 ± 7.9 kg). All players performed unloaded and loaded countermovement jumps (CMJ) on a force platform. The theoretical maximal force ( F0), the theoretical maximum velocity ( v0), the theoretical maximal power ( Pmax), the slope of the F-v relationship ( Sfv) and the force-velocity imbalance ( FVimb) were calculated. Mean value of vertical jump height was 0.33 ± 0.03m, with no difference between handball and volleyball players. Mean values of F0, v0, Pmax, Sfv and FVimb for all players were 31.2 ± 2.6 N/kg, 3.10 ± 0.50 m·s−1, 24.2 ± 3.2 w/kg, -10.32 ± 2.09 Ns/m/kg and 28.1 ± 13.3% respectively. Two players had a low magnitude velocity-deficit, whereas most of the players exhibited a low to high force-deficit. A strong correlation was found between the ratio of measured to optimal F-v slope with the change in the proportion of net force to total force during unloaded and loaded conditions. The findings suggest that it would be beneficial for these athletes to first decrease their force deficit through mainly maximal strength training before implementing training to further maximize power output. Establishment of the F-v profile could be a useful diagnostic tool for coaches to optimize strength training and to design training intervention based on the individual need of each athlete.

scholarly journals Smartphone-assisted spatial data collection improves geographic information quality: pilot study using a birth records dataset

2016 ◽  
Vol 11 (3) ◽  
Author(s):  
Xiaohui Xu ◽  
Hui Hu ◽  
Sandie Ha ◽  
Daikwon Han
Keyword(s):  
Pilot Study ◽  
Data Collection ◽  
Spatial Data ◽  
Information Quality ◽  
Reference Method ◽  
Application Programming Interface ◽  
Geographic Information ◽  
Aerial Image ◽  
Positional Accuracy ◽  
Birth Records

It is well known that the conventional, automated geocoding method based on self-reported residential addresses has many issues. We developed a smartphone-assisted aerial image-based method, which uses the Google Maps application programming interface as a spatial data collection tool during the birth registration process. In this pilot study, we have tested whether the smartphone-assisted method provides more accurate geographic information than the automated geocoding method in the scenario when both methods can get the address geocodes. We randomly selected 100 well-geocoded addresses among women who gave birth in Alachua county, Florida in 2012. We compared geocodes generated from three geocoding methods: i) the smartphone-assisted aerial image-based method; ii) the conventional, automated geocoding method; and iii) the global positioning system (GPS). We used the GPS data as the reference method. The automated geocoding method yielded positional errors larger than 100 m among 29.3% of addresses, while all addresses geocoded by the smartphoneassisted method had errors less than 100 m. The positional errors of the automated geocoding method were greater for apartment/condominiums compared with other dwellings and also for rural addresses compared with urban ones. We conclude that the smartphone-assisted method is a promising method for perspective spatial data collection by improving positional accuracy.

The Louisville Twin Study: Past, Present and Future

2019 ◽  
Vol 22 (6) ◽  
pp. 735-740 ◽  
Author(s):  
Deborah W. Davis ◽  
Eric Turkheimer ◽  
Deborah Finkel ◽  
Christopher Beam ◽  
Lesa Ryan
Keyword(s):  
Pilot Study ◽  
Child Development ◽  
Data Collection ◽  
Twin Study ◽  
Multiple Birth ◽  
Face To Face ◽  
Data Collection Methods ◽  
Data Preservation ◽  
Louisville Twin Study ◽  
Collection Methods

AbstractThe Louisville Twin Study (LTS) is nationally recognized as one of the largest and most comprehensive studies of child development related to multiple birth status. The LTS is unique because of the extensive longitudinal face-to-face assessments, the frequency of data collection, the inclusion of data on additional family members (i.e., parents, siblings, grandparents; and later, twins’ own spouses and children), and the variety of data collection methods used. Data preservation efforts began in 2008 and are largely complete, although efforts are ongoing to obtain funding to convert the electronic data to a newer format. A pilot study was completed in the summer of 2018 to bring the twins, who are now middle-aged, back for testing. A grant is currently under review to extend the pilot study to include all former participants who are now ≥40 years of age. Opportunities for collaboration are welcome.

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