Increased Strength, Reaction Time and Speed of LIMB Movement

1970 ◽  
Vol 30 (3) ◽  
pp. 775-781E ◽  
Author(s):  
Leon E. Smith
Keyword(s):  
Individual Differences ◽  
Reaction Time ◽  
Training Program ◽  
Movement Time ◽  
Young Male ◽  
Control Limb ◽  
Increased Strength ◽  
Relationship Of ◽  
High Degree ◽  
Strength Increment

81 young male adults participated in a 6-wk. × 7 days a week myotatic and isometric strength training program. Associated with strength increments myotatic practice proved to be superior to the isometric program relative to improvement of movement time (MT) in the experimental leg and contralateral transfer to the control limb. As a result of isometric exercises reaction time (RT) was decreased and was transferred more effectively than in the myotatic group although there was a loss of speed of movement in both limbs following isometric training. Correlations between RT and MT with pretraining strength and strength increment scores showed a high degree of specificity of relationship of individual differences.

Relationship of Reaction Time and Movement Time in a Gross Motor Skill

1973 ◽  
Vol 36 (2) ◽  
pp. 453-454 ◽  
Author(s):  
Richard Groves
Keyword(s):  
Reaction Time ◽  
Motor Skill ◽  
Movement Time ◽  
Gross Motor ◽  
Moment Coefficient ◽  
Relationship Of ◽  
Gross Motor Skill

The purpose of the study was to investigate the independence of reaction time (RT) and movement time (MT) in a gross motor skill, the racing start in swimming. RT and MT were quantified for each S by counting frames of film for five trials. The Pearson product-moment coefficient of –.231 ( p > .05) between means indicated that RT and MT were independent factors.

Individual Differences in Arm Strength, Speed, Reaction Time, and Three Serial Reaction Time-Movement Time “Programs”

1968 ◽  
Vol 26 (2) ◽  
pp. 651-658 ◽  
Author(s):  
Leon E. Smith
Keyword(s):  
Individual Differences ◽  
Reaction Time ◽  
Motor Performance ◽  
Movement Time ◽  
College Men ◽  
Serial Reaction Time ◽  
Limb Movements ◽  
Serial Reaction ◽  
Arm Strength ◽  
Time Movement

The motor performance of 32 college men was measured on the following tests: arm strength, arm reaction and movement times, arm-and-leg serial reaction and movement times. Specificity of variance of individual differences was found for single, simple, and discrete limb movements and for three programmed series of large RT-MT movements which involved 240 responses.

Faster Reaction Time through Increasing Intent to Respond

1966 ◽  
Vol 22 (2) ◽  
pp. 663-666 ◽  
Author(s):  
Jim D. Whitley
Keyword(s):  
Individual Differences ◽  
Reaction Time ◽  
College Men ◽  
The Creation ◽  
Relationship Of ◽  
Simple Rt ◽  
The Relationship ◽  
Motor Acts ◽  
Very High

The RT of 50 college men was measured under normal (N) and artificial (E) limb mass conditions. It was hypothesized that RT in condition E would be significantly faster than in N because the heavier mass would encourage a stronger conscious and willful intent, during the response foreperiod, to trigger the simple learned RT response stored in the memory motor drum. The results ( t = 4.202, p < .05) substantiated this hypothesis. Even though the relationship of RTs in N and E conditions was moderately large ( r = .56), the specificity was very high, 69%; thus the possibility that two separate neuromotor programs are involved cannot be excluded. It is concluded that in a simple RT experiment the creation of a situation during the response foreperiod which increases S's conscious and willful intent to respond, will result in a faster RT. Also, the results support the known specificity of individual differences in performance of simple discrete motor acts.

The Effect of Uncertainty on Reaction Time

2002 ◽  
Vol 46 (8) ◽  
pp. 805-809
Author(s):  
Stanley Caplan
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Movement Time ◽  
Real Life ◽  
Card Sorting ◽  
Stimulus Response ◽  
Concept Of Information ◽  
Relationship Of ◽  
Familiar Stimuli ◽  
The Relationship

Using various card-sorting tasks, this class experiment shows how choice reaction time increases with the number of bits processed in tasks having familiar stimuli and one-to-one stimulus-response compatibility. Students deal decks of cards during four timed exercises into a specific number of piles according to color (2 piles), suit (4 piles), etc., which represent a different level of uncertainty measured by bits of information processed. A second deal is conducted without regard to suit, color, etc. to determine and remove movement time from the total deal time. The relationship of the resulting reaction time and bits is shown in a graph of data generated in real time from the students' four class exercises. This demonstration can be used to introduce the concept of information processing, to explore what experimental factors could contribute to the resultant time, and to discuss real-life choice reaction time applications.

Individual Differences in Maximal Speed of Muscular Contraction and Reaction Time

1965 ◽  
Vol 21 (1) ◽  
pp. 19-22 ◽  
Author(s):  
Leon E. Smith
Keyword(s):  
Individual Differences ◽  
Reaction Time ◽  
Vertical Velocity ◽  
College Men ◽  
Muscular Contraction ◽  
The Body ◽  
Motor Abilities ◽  
Maximal Speed ◽  
High Degree ◽  
The Relationship

50 college men participated in an investigation of the relationship between standing RT and the maximal vertical velocity which the body can generate while in contact with the ground. The results support recent studies which reflect the high degree of specificity of individual differences in motor abilities. The nonsignificant correlation of −0.31 indicates that vertical body speed cannot be predicted from a knowledge of standing RT.

scholarly journals Effects of Static and Dynamic Stretching on Force Sense, Dynamic Flexibility and Reaction Time of Children

2019 ◽  
Vol 12 (1) ◽  
pp. 22-27
Author(s):  
Dimitris Chatzopoulos ◽  
Georgios Doganis ◽  
Georgios Lykesas ◽  
Nikolaos Koutlianos ◽  
Christos Galazoulas ◽  
...  
Keyword(s):  
Reaction Time ◽  
Repeated Measures ◽  
Movement Time ◽  
Young Male ◽  
Voluntary Contraction ◽  
Warm Up ◽  
Dynamic Stretching ◽  
Force Matching ◽  
Matching Test ◽  
Force Sense

Background: Traditionally, stretching protocols are basic components of warm-up aiming to improve performance and reduce injuries. However, the literature suggests that different stretching protocols during warm-up may have diverse effects on performance. Objective: The purpose of this study was to compare the acute effects of three different stretching protocols on force sense, dynamic flexibility, reaction time and movement time. Methods: The study included twenty-five participants who were TaeKwonDo young male players (age = 11.78 ± 1.66 years.). All the participants performed one of the following protocols on different days: (a) 5 min jogging followed by 3 min Static Stretching (SS), (b) 5 min jogging followed by 3 min Dynamic Stretching (DS), and (c) 5 min jogging followed by 3 min of rest (NS). After the protocols, the participants performed the following measurements: (a) force-matching test at 20% maximal isometric voluntary contraction (force sense), (b) active straight leg raise test (dynamic flexibility) and (c) reaction and movement time test. Results: Repeated measures analysis of variance revealed no significant main effects on force sense. Furthermore, SS performed significantly better in dynamic flexibility in comparison to NS, and DS performed significantly better in terms of dynamic flexibility and movement time compared to SS. Conclusion: According to the results of the study, it seems that force sense is not affected by either SS or DS protocols (30 sec duration per muscle group). Moreover, it seems that DS in the warm-up is more appropriate than SS for activities requiring dynamic flexibility and movement time.

Reaction Time and Brain Waves in Omitted Stimulus Tasks

2010 ◽  
Vol 24 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Oscar H. Hernández ◽  
Muriel Vogel-Sprott
Keyword(s):  
Reaction Time ◽  
Cognitive Processes ◽  
Young Male ◽  
Event Related Potential ◽  
Auditory Stimuli ◽  
Motor Action ◽  
Cognitive Component ◽  
Sensory Modalities ◽  
Two Measures ◽  
Somatosensory Stimuli

A missing stimulus task requires an immediate response to the omission of a regular recurrent stimulus. The task evokes a subclass of event-related potential known as omitted stimulus potential (OSP), which reflects some cognitive processes such as expectancy. The behavioral response to a missing stimulus is referred to as omitted stimulus reaction time (RT). This total RT measure is known to include cognitive and motor components. The cognitive component (premotor RT) is measured by the time from the missing stimulus until the onset of motor action. The motor RT component is measured by the time from the onset of muscle action until the completion of the response. Previous research showed that RT is faster to auditory than to visual stimuli, and that the premotor of RT to a missing auditory stimulus is correlated with the duration of an OSP. Although this observation suggests that similar cognitive processes might underlie these two measures, no research has tested this possibility. If similar cognitive processes are involved in the premotor RT and OSP duration, these two measures should be correlated in visual and somatosensory modalities, and the premotor RT to missing auditory stimuli should be fastest. This hypothesis was tested in 17 young male volunteers who performed a missing stimulus task, who were presented with trains of auditory, visual, and somatosensory stimuli and the OSP and RT measures were recorded. The results showed that premotor RT and OSP duration were consistently related, and that both measures were shorter with respect to auditory stimuli than to visual or somatosensory stimuli. This provides the first evidence that the premotor RT is related to an attribute of the OSP in all three sensory modalities.

scholarly journals Advertising Media Impact in Consumer Buying Behavior

2019 ◽  
Vol 8 ◽  
pp. 54-56
Author(s):  
Ashmita Dahal Chhetri
Keyword(s):  
Consumer Behavior ◽  
Young Male ◽  
Electronic Media ◽  
Buying Behavior ◽  
Media Impact ◽  
High Degree ◽  
The Impact ◽  
Buying Behaviors ◽  
The Relationship ◽  
Better Than

Advertisements have been used for many years to influence the buying behaviors of the consumers. Advertisements are helpful in creating the awareness and perception among the customers of a product. This particular research was conducted on the 100 young male and female who use different brands of product to check the influence of advertisement on their buying behavior while creating the awareness and building the perceptions. Correlation, regression and other statistical tools were used to identify the relationship between these variables. The results revealed that the relationship between media and consumer behavior is positive. The adve1tising impact on sales and there is positive and high degree relationship between advertising and consumer behavior. The impact on advertising of a product of electronic media is better than non-electronic media.

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