scholarly journals Reliability of Computer-Based Video Motion Analysis and Electromyographic Analysis of Sit-to-Stand Movement

1996 ◽  
Vol 8 (2) ◽  
pp. 49-54 ◽  
Author(s):  
Shigeru Usuda ◽  
Takehiko Yamaji
Keyword(s):  
Motion Analysis ◽  
Sit To Stand ◽  
Video Motion Analysis ◽  
Computer Based ◽  
Electromyographic Analysis

Intrasubject Reliability of Spinal Range of Motion and Velocity Determined by Video Motion Analysis

1993 ◽  
Vol 73 (9) ◽  
pp. 626-631 ◽  
Author(s):  
Michael E Robinson ◽  
Patrick D O'Connor ◽  
Fred R Shirley ◽  
Michael Mac Millan
Keyword(s):  
Range Of Motion ◽  
Motion Analysis ◽  
Video Motion Analysis

scholarly journals Characteristics of Very High Intensity Runs of Soccer Players in Relation to Their Playing Position and Playing Half in the 2013-14 Spanish La Liga Season

2019 ◽  
Vol 66 (1) ◽  
pp. 213-222 ◽  
Author(s):  
Jesús Rivilla-García ◽  
Luis Carlos Calvo ◽  
Sergio Jiménez-Rubio ◽  
Victor Paredes-Hernández ◽  
Alejandro Muñoz ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Motion Analysis ◽  
Performance Indicators ◽  
High Intensity ◽  
Soccer Players ◽  
General Level ◽  
Analysis Tool ◽  
Video Motion Analysis ◽  
High Level ◽  
Very High

AbstractThe objective of this study was to carry out a detailed quantitative analysis of the very high intensity runs during actual play in the 2013-2014 Spanish First Division, at a general level and according to the specific playing position and half. 380 matches of the Spanish First Division in the 2013 - 2014 season were monitored using the Mediacoach video motion analysis tool. Total distance, very high intensity (above 21 km/h) running distance and the number of runs at very high intensity of 230 players from 20 teams in the Spanish First Division were analysed. The main findings of the study were that the performance indicators at very high intensities decreased from the first half to the second half for all outfield players (covered distance: 4694 ± 538 m vs 4485 ± 437 m, sprint distance: 256 ± 72 m vs 239 ± 67 m, number of sprints: 14.3 ± 3.5 vs 13.2 ± 3.1), except the central defenders (sprint distance: 166 ± 37 vs 166 ± 40 m, number of sprints: 10.0 ± 2.1 vs 9.8 ± 3.8). Secondly, although wide defenders (9759 ± 665 m) and central midfielders (9776 ± 942 m) covered the most distance during matches, it were the wide defenders (30 ± 5), centre-forwards (28 ± 7) and wide midfielders (31 ± 8) who performed the most runs at very high intensity. Consequently, the distance they ran at these very high intensity runs followed the same pattern. Such results enable general and specific profiles by demarcation to be established based on the demands of the game at high-level competitive play.

Motility behavior of Azospirillum species in response to aromatic compounds

1994 ◽  
Vol 40 (9) ◽  
pp. 705-711 ◽  
Author(s):  
Geralyne Lopez-de-Victoria ◽  
Donald R. Fielder ◽  
Richard K. Zimmer-Faust ◽  
Charles R. Lovell
Keyword(s):  
Motion Analysis ◽  
Swimming Speed ◽  
Aromatic Compounds ◽  
Rate Of Change ◽  
Behavioral Changes ◽  
Computer Assisted ◽  
Hydroxybenzoic Acid ◽  
Video Motion Analysis ◽  
Azospirillum Brasilense Sp7 ◽  
Azospirillum Lipoferum Sp59b

The motility of Azospirillum lipoferum Sp59b and Azospirillum brasilense Sp7 in the presence of the aromatic compounds benzoate, protocatechuate, 4-hydroxybenzoic acid, and catechol was studied using computer-assisted video motion analysis. Increases in swimming speed with concomitant decreases in the rate of change in direction and increases in path linearity are indicative of bacterial chemoattraction. With the exception of 4-hydroxybenzoic acid, the aromatic compounds tested altered the motility patterns of both species, consistent with a chemoattraction mechanism. 4-Hydroxybenzoic acid elicited significant behavioral changes only in A. brasilense. The highest speeds were recorded for most compounds at concentrations between 1 and 10 mM for A. lipoferum and at lower concentrations for A. brasilense. Catechol, supplied at a 10 mM concentration, reduced the swimming speed of A. brasilense but not of A. lipoferum. The distinct differences in swimming behavior observed between these two species of Azospirillum in response to aromatic compounds may be of ecological significance in soils.Key words: Azospirillum spp., motility, video motion analysis, aromatic compounds.

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