GLORIA

GEOMAR Library Ocean Research Information Access

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • SAGE Publications  (2)
  • Clemente, Filipe Manuel  (2)
Material
Publisher
  • SAGE Publications  (2)
Person/Organisation
Language
Years
  • 1
    Online Resource
    Online Resource
    SAGE Publications ; 2021
    In:  Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology Vol. 235, No. 2 ( 2021-06), p. 122-130
    In: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, SAGE Publications, Vol. 235, No. 2 ( 2021-06), p. 122-130
    Abstract: The purpose of the study was three-fold: (i) to describe ball speed and arm speed during power jump serve in volleyball; (ii) compare the outcomes among playing positions, and (iii) analyze the relationships among outcomes. One middle blocker (MI), three opposites (OP), three setters (S), and six outside hitters or receiver-attackers (RA) youth elite volleyball players from the French national team participated in this study. This cross-sectional study analyzed the ball and arm speeds while serving over two consecutive weeks. A total of 150 valid power speed serves (ball speed = 103.0 ± 7.0 km h −1 ; arm speed = 40.0 ± 4.2 km h −1 ) were recorded during the six training sessions using a radar-gun and an inertial measurement unit. Ball speed varied from 90 to 110 km h −1 , while the coefficient of variation ranged from 1.5% to 7.5%. Arm speed varied between 35 and 45 km h −1 , while the coefficient of variation ranged between 2 and 14%. One-way ANOVA revealed significant differences among playing positions for the variables of ball speed ( p = 0.018), arm speed ( p = 0.019) and ratio of ball to arm speed ( p = 0.002). Very large correlations between arm speed and the ratio of ball speed to arm speed were found ( r = −0.77 [−0.83; −0.69]; p ≤ 0.001). The results suggest that players reduce their variability regarding the outcome. Finally, despite being related, the velocity of the arm and ball were not perfectly correlated. Thus, measuring both the arm and ball velocity may be necessary.
    Type of Medium: Online Resource
    ISSN: 1754-3371 , 1754-338X
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2433576-9
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Online Resource
    Online Resource
    SAGE Publications ; 2022
    In:  International Journal of Sports Science & Coaching Vol. 17, No. 6 ( 2022-12), p. 1462-1487
    In: International Journal of Sports Science & Coaching, SAGE Publications, Vol. 17, No. 6 ( 2022-12), p. 1462-1487
    Abstract: Field-based tests are important since they can guarantee ecological validity. Although most such tests are designed to assess physical fitness, tactical and technical dimensions are also determinants in a full battery of tests. Objectives This systematic review aimed to (a) summarize the criterion validity and reliability of technical and tactical field-based tests applied in soccer and (b) list valid and reliable technical and tactical field-based tests. Methods A systematic review of EBSCO, PubMed, Scielo, SPORTDiscus, and Web of Science databases was performed according to PRISMA guidelines. The eligibility criteria included (i) population (soccer players from any age group, competitive level, or sex); (ii) exposure (exposure to technical and/or tactical field-based tests covering individual technical skills, tactical behaviours, tactical knowledge, and decision-making in the field); (iii) comparator (a laboratory test and/or a criterion field-based test); (iv) outcome (measures of reliability); and (v) no restrictions concerning study design. The synthesis of results focused on the outcomes considered in the eligibility criteria. Results A total of 5008 titles were identified, of which 21 met the eligibility criteria. Eight studies’ analyses centred on tactical tests. Of those, six studies tested the same instrument (FUT-SAT), one study examined divergent thought, and one study used a soccer-specific skills test Among the 10 included studies involving technical tests, only two repeated the same test (the Loughborough Soccer Passing Test). Three studies included tests concurring with physical ones. According to the main findings, the eight studies that used tactical tests revealed that the outcomes obtained from the tests and observers were reliable. The 10 studies that used technical tests, as well as the three concurrent studies, revealed similarly high reliability. Of the eight studies that used tactical tests, seven involved youth participants. Furthermore, three of the 10 studies that conducted technical tests were done on adults. Of the concurrent tests, three involved youth athletes. Only one study including a tactical analysis presented values for validity, while three others provided information about validity. The four studies provided information about test validity. Conclusions Overall, the selected technical and tactical tests, most of which were carried out on youth players, revealed their validity and reliability. Although most studies focused on reliability (which was confirmed regardless of the test included), criterion validity was also observed in the few studies that analysed such factors. Thus, the tests currently proposed for assessing technical and tactical behaviours possess acceptable criterion validity and reliability.
    Type of Medium: Online Resource
    ISSN: 1747-9541 , 2048-397X
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2237333-0
    SSG: 31
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...