Wyniki wyszukiwania

1

A comparison of reaction times of boys and girls aged 10-11 and 14-15 years

100%

Brychta P., Hojka V., Heller J., Konarski J. M., Coufalova K., Ruda T.

Trends in Sport Sciences

|

2013

|

tom 20

|

nr 3

Introduction. Pubescence is a life stage with the most turbulent progression of sensorimotor abilities during the transformation of a child into an adult. Differences in all sensorimotor abilities between boys and girls are become significant at this age. The progression of reaction abilities in girls decreases at this age (girls achieve peak values around the age of 15), while the reaction abilities in boys keep improving into adolescence. Younger children compared to adults and older children show a reduced ability to perform one or more tasks concurrently with a movement task. Aim of Study. The purpose of the study was to determine the time of complex reaction of the lower limbs of children. Moreover, a relationship between reaction time, age and gender was also found. Material and Methods. The research group included 81 primary school students aged 10-15 years. Subjects were divided into four groups according to age and gender (Group 1 – 9.8 to 10.8-year-old girls, n = 20; Group 2 – 10.0 to 10.7-year-old boys, n = 19; Group 3 – 14.3 to 15.3-year-old girls, n = 21; and Group 4 – 14.2 to 15.2-year-old boys, n = 21). The measurements were carried out using the FiTRO Agility Check test. A two-way ANOVA revealed statistically significant differences between the groups. The significance level was adjusted to 0.05. Tukey’s post-hoc test was used to determine differences between pairs of groups. Results. There are significant differences between the boys and girls aged 14-15 years. Other differences between boys and girls aged 10-11 years were not statistically significant, however, girls performed with slightly shorter reaction times. Conclusions. The research showed a significant relationship between age and complex reaction speed in the age group of 14-15 of boys and girls. This study helps to prove that boys do not have shorter complex reaction times than girls aged 10-11 years.

2

Generalization of induced interhemispheric interference: a chronometric approach to one-brain vs two-brains models of the hemispheres' cooperation

100%

Wolski P.

Acta Neurobiologiae Experimentalis

|

1993

|

tom 53

|

nr 1

3

Hemispheric asymmetry in stimulus size evaluation

100%

Szatkowska I., Grabowska A., Nowicka A.

Acta Neurobiologiae Experimentalis

|

1993

|

tom 53

|

nr 1

4

Direction discrimination learning in normal and visually deprived cats and the efects of lateral suprasylvian lesions

100%

Burnat K., Zernicki B.

Acta Neurobiologiae Experimentalis

|

1997

|

tom 57

|

nr 3

5

The evoked cardiac response as a function of cognitive load in subjects differing on the individual difference variable of reaction time

100%

Kaiser J., Beauvale A., Bener J.

Acta Neurobiologiae Experimentalis

|

1996

|

tom 56

|

nr 1

6

Start reaction time and performance time in women’s sprint at the world championships in athletics

84%

Pilianidis T., Mantzouranis N.

Studies in Physical Culture and Tourism

|

2011

|

tom 18

|

nr 3

7

Speed skills of players selected for Lower Silesian Regional Teams

84%

Swierzko K., Rokita A., Klimczak K.

Trends in Sport Sciences

|

2016

|

tom 23

|

nr 1

Introduction. Team sports require comprehensive motor preparation of players. In addition to strength and endurance skills, increasing attention is being given to the development of players’ speed skills. Aim of Study. The aim of the study was to evaluate reaction time and 30-metre, straight line sprint time in players selected for the Lower Silesian Regional Teams in Poland in 2013 and 2014. Material and Methods. The study involved 369 players aged 13–15 years (187 girls and 182 boys), members of football, handball, volleyball and basketball Regional Teams of Lower Silesia. Out of this group, 51 players participated in the study in 2013, and then repeated it in 2014. The study used Smart Jump and Smart Speed Systems to measure players’ reaction and sprint times, which were measured at 5, 10, 15, 20, 25 and 30-metre intervals. Results. Mean reaction time to light stimuli observed in boys in 2013 and 2014 was 0.509 ± 0.141 and 0.467 ± 0.264 seconds, respectively. In girls, the mean reaction time was 0.553 ± 0.122 and 0.566 ± 0.0271 seconds in 2013 and 2014, respectively. Mean sprint time in 2013 for boys who were not selected for the Regional Teams the following year was 5.338 ± 0.285 seconds, while those who were selected reached 5.416 ± 0.321 seconds. Girls who did not qualify for the Regional Teams in 2014 achieved the time of 5.764 ± 0.305 seconds. The female players who repeated the study reached the mean time of 5.805 ± 0.28 seconds. Boys who joined the Regional Teams in 2014 had a 30-metre sprint time of 5.533 ± 0.359 s. Boys who were repeating the study achieved the time of 5.322 ± 0.295 s. Girls who were selected for the Regional Teams in 2014 reached 5.796 ± 0.348 s, while girls who were repeating the study – 5.839 ± 0.342 s. Conclusions. The players’ reaction times may suggest that this ability was not a criterion for selecting male and female players for the Regional Teams of Lower Silesia. Male handball players were shown to posses the greatest speed potential.

8

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Visuomotor processing after progressively increased physical exercise

84%

Zwierko T., Lesiakowski P.

Central European Journal of Sport Sciences and Medicine

|

2014

|

tom 05

|

nr 1

We assessed the effect of physical effort with increasing intensity on the visuomotor processing in physically active young men (n = 2 2). Subjects performed three 10-minute effort-tests with increasing intensity on a cycloergometer. Each participant was assigned individual workload values below the lactate threshold (40% VO2max), at the lactate threshold (60% VO2max) and above the lactate threshold (80% VO2max). Special Ability Signal Test included in the Vienna Test System (Schuhfried, Austria) was used to examine visuomotor processing. The numbers of correct reactions and the median reaction time as a measure of the speed of the detection process were analyzed. Four Signal test recordings were taken: pre-exercise and immediately after the three subsequent effort tests. The numbers of correct reactions increased after the first effort (40% VO2max) in comparison to the pre-exercise state and then significantly decreased after the third effort test (80% VO2max). In contrast, no significant changes in time of signal detection were observed. Physical effort with high intensity might disturb the visuomotor processing in accordance to the accuracy of the visuospatial differentiation of the relevant signal within irrelevant signals.

9

Lost in time: a historical frame, elementary processing units and the 3-second window

84%

Poppel E.

Acta Neurobiologiae Experimentalis

|

2004

|

tom 64

|

nr 3

10

On the translation of some stimulus features to response force

84%

Jaskowski P., Werner I., Verleger R.

Acta Neurobiologiae Experimentalis

|

2003

|

tom 63

|

nr 4

11

The effect of the time process of enzymatic hydrolysis on nanocellulose properties

67%

Babicka M., Wozniak M., Szentner K., Borysiak S., Dwiecki K., Ratajczak I.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

|

2021

|

tom 115

12

Visual perception in space and time - mapping the visual field of temporal resolution

67%

Poggel D. A., Strasburger H.

Acta Neurobiologiae Experimentalis

|

2004

|

tom 64

|

nr 3

Ograniczanie wyników

A comparison of reaction times of boys and girls aged 10-11 and 14-15 years

Generalization of induced interhemispheric interference: a chronometric approach to one-brain vs two-brains models of the hemispheres' cooperation

Hemispheric asymmetry in stimulus size evaluation

Direction discrimination learning in normal and visually deprived cats and the efects of lateral suprasylvian lesions

The evoked cardiac response as a function of cognitive load in subjects differing on the individual difference variable of reaction time

Start reaction time and performance time in women’s sprint at the world championships in athletics

Speed skills of players selected for Lower Silesian Regional Teams

Visuomotor processing after progressively increased physical exercise

Lost in time: a historical frame, elementary processing units and the 3-second window

On the translation of some stimulus features to response force

The effect of the time process of enzymatic hydrolysis on nanocellulose properties

Visual perception in space and time - mapping the visual field of temporal resolution