Effect of consecutive jumping efforts over several days on kinetic locomotion parameters in unridden horses – a preliminary study

2020 ◽  
pp. 1-10
Author(s):  
A. Lindner ◽  
R. Signorini ◽  
K. de Oliveira ◽  
N. Bollati ◽  
J.L. Nuñiez

There are few studies describing the training of horses used for show jumping and most only in a broad sense. Six unridden horses fitted with an accelerometric device were submitted to consecutive jumping efforts to examine the short-term effect. Horses jumped 13 obstacles away (away) from and returning (return) to their handler. On the first day, the horses jumped the obstacles once (26 jumps). The next day, the horses did the same routine twice and on the fourth day three times. The duration of the away runs was significantly longer than that of the return runs on all days. The comparison of the first exercise sessions on all exercise days showed that the stride frequency was always higher during the return runs than during the away runs and higher on days 2 and 4 than on day 1. The craniocaudal power was higher on days 2 and 4 compared to day 1 and the dorsoventral power higher on day 2 than on day 4. On exercise day 4, stride regularity decreased during the return runs, while the stride frequency increased. The dorsoventral, craniocaudal and total powers were lower during the second and third exercise sessions than during the first exercise session on this day while exercise duration did not change. These results seem to indicate an improved jumping efficiency. In conclusion, the multiple consecutive unridden jumping exercise sessions were well tolerated by the horses. The cause of the locomotion changes needs to be further examined. This exercise can be used to train horses.

Author(s):  
Florian Arendt

A test was done to see if reading a newspaper which consistently overrepresents foreigners as criminals strengthens the automatic association between foreign country and criminal in memory (i.e., implicit cultivation). Further, an investigation was done to find out if reading articles from the same newspaper produces a short-term effect on the same measure and if (1) emotionalization of the newspaper texts, (2) emotional reactions of the reader (indicated by arousal), and (3) attributed text credibility moderate the short-term treatment effect. Eighty-five participants were assigned to one of three experimental conditions. Participants in the control group received short factual crime texts, where the nationality of the offender was not mentioned. Participants in the factual treatment group received the same texts, but the foreign nationality was mentioned. Participants in the emotionalized treatment group received emotionalized articles (i.e., texts which are high in vividness and frequency) covering the same crimes, with the foreign nationality mentioned. Supporting empirical evidence for implicit cultivation and a short-term effect was found. However, only emotionalized articles produced a short-term effect on the strength of the automatic association, indicating that newspaper texts must have a minimum of stimulus intensity to overcome an effect threshold. There were no moderating effects of arousal or credibility pertaining to the impact on the implicit measure. However, credibility moderated the short-term effect on a first-order judgment (i.e., estimated frequency of foreigners of all criminals). This indicates that a newspaper’s effect on the strength of automatic associations is relatively independent from processes of propositional reasoning.


1990 ◽  
Vol 50 (7) ◽  
pp. 801-805 ◽  
Author(s):  
L. E. Matzen ◽  
B. B. Andersen ◽  
B. G. Jensen ◽  
H. J. Gjessing ◽  
S. H. Sindrup ◽  
...  

Author(s):  
Mohamed Zahoor Ul Huqh ◽  
Rozita Hassan ◽  
Roselinda Abdul Rahman ◽  
Asilah Yusof ◽  
Ida Bagus Narmada ◽  
...  

Abstract Objectives The purpose of this study was to evaluate the short-term effect of active skeletonized sutural distractor (ASSD) appliance on temporomandibular joint morphology of class III malocclusion subjects. Materials and Methods This was a prospective interventional study. Cone-beam computerized tomography (CBCT) images of 22 patients were taken before and after treatment by using Planmeca Promax 3D CBCT machine version 2.9.2 (Planmeca OY Helsinki, Finland). The condylar width, height, length, roof of glenoid fossa thickness, and all joint spaces were measured. The condylar position was determined based on Pullinger and Hollander formula. The condylar shape was determined as per Kinzinger et al. The condylar volume was calculated by using Mimics software (Materialize, Belgium). Statistical Analysis Data analysis was performed by using SPSS software version 24. Wilcoxon paired signed-rank test was used to compare the difference in temporomandibular joint morphology and condylar volume between pre- and post-treatment measurements. Chi-square test was used to compare the condylar position and shape. Results The superior (p = 0.000 on the right side, p = 0.005 on the left side) and posterior joint spaces (p = 0.000 on both sides) were decreased after the treatment, respectively. The condyles were rotated upward and backward, thereby increasing the anterior joint spaces (p = 0.000 on both sides) after the treatment. The condylar volume increases after treatment, but no significant differences were observed (p = 0.903 on the right side, p = 0.062 on the left side). Conclusion The significant changes were observed in joint spaces. The condyles were more anteriorly placed before treatment. Condylar position and shape alter in response to ASSD treatment. The condylar volume did not show any significant change.


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