scholarly journals The Effect of Manipulating Individual Consequences and Training Demands on Experiences of Pressure With Elite Disability Shooters

2019 ◽  
Vol 33 (3) ◽  
pp. 221-227
Author(s):  
Mike Stoker ◽  
Ian Maynard ◽  
Joanne Butt ◽  
Kate Hays ◽  
Paul Hughes
Keyword(s):  
Cognitive Anxiety ◽  
Subject Design ◽  
And Performance ◽  
Perceived Pressure ◽  
Training Demands ◽  
And Training

In previous research, multiple demands and consequences were manipulated simultaneously to examine methods for pressure training. Building on literature, in this study a single demand or consequence stressor was manipulated in isolation. Specifically, in a matched within-subject design, 6 international shooters (mean age 28.67 yr) performed a shooting task while exposed to a single demand (task, performer, environmental) or consequence (reward, forfeit, judgment) stressor. Perceived pressure, anxiety (intensity and direction), and performance were measured. Compared with baseline, manipulating demands did not affect pressure or anxiety. In contrast, pressure and cognitive anxiety significantly increased when judgment or forfeit consequence stressors were introduced. Thus, the findings lack support for manipulating demands but strongly support introducing consequences when pressure training. Compared with baseline, the judgment stressor also created debilitative anxiety. Hence, in terms of introducing a single stressor, judgment appeared most impactful and may be most effective for certain athlete populations.

scholarly journals Pacing in Time-Limited Ultramarathons from 6 to 24 Hours—The Aspects of Age, Sex and Performance Level

2021 ◽  
Vol 13 (5) ◽  
pp. 2705
Author(s):  
Hagen Deusch ◽  
Pantelis T. Nikolaidis ◽  
José Ramón Alvero-Cruz ◽  
Thomas Rosemann ◽  
Beat Knechtle
Keyword(s):  
Analysis Of Variance ◽  
Coefficient Of Variation ◽  
Training Programs ◽  
Performance Level ◽  
Running Speed ◽  
And Performance ◽  
Main Effects ◽  
And Training ◽  
Age And Sex

(1) Background: Compared with marathon races, pacing in time-limited ultramarathons has only been poorly discussed in the literature. The aim of the present study was to analyze the interaction of performance level, age and sex with pacing during 6 h, 12 h or 24 h time-limited ultramarathons. (2) Methods: Participants (n = 937, age 48.62 ± 11.80 years) were the finishers in 6 h (n = 40, 17 women and 23 men), 12 h (n = 232, 77 women and 155 men) and 24 h (n = 665, 166 women and 409 men) ultramarathons. The coefficient of variation (CV), calculated as SD/mean, was used to described pacing. Low scores of CV denoted a more even pacing, and vice versa. A two-way analysis of variance examined the main effects and interactions of sex and race duration on age, race speed and pacing. (3) Results: More men participated in the longer race distances than in the shorter ones and men were older and faster than women. Comparing the 6 h, 12 h and 24 h races, the finishers in the 6 h were the fastest, the finishers in the 12 h were the oldest and the finishers in the 24 h showed the most variable pacing. Furthermore, the faster running speed in the 12 h (women, r = −0.64; men, r = −0.49, p < 0.001) and the 24 h (r = −0.47 in women and men, p < 0.001) was related to less variable pacing. (4) Conclusions: These data might help runners and coaches to choose the the proper duration of a race and training programs for their athletes.

scholarly journals Cultivating the Ethical Repertoires of Behavior Analysts: Prevention of Common Violations

2021 ◽  
Author(s):  
Lisa N. Britton ◽  
Amy A. Crye ◽  
Linda K. Haymes
Keyword(s):  
Behavior Analyst ◽  
Ethical Culture ◽  
Behavior Analyst Certification Board ◽  
Ethical Violations ◽  
Supervision Process ◽  
Organizational Perspective ◽  
Behavior Analysts ◽  
And Performance ◽  
Supervision And Training ◽  
And Training

AbstractViolations of the Professional and Ethical Compliance Code for Behavior Analysts occur despite coursework, supervision, and training. In this discussion, we highlight the most common violation categories identified: (a) improper or inadequate supervision/delegation, (b) failure to report/respond to the Behavior Analyst Certification Board (BACB) as required, and (c) professionalism/integrity. The specific areas addressed under supervision/delegation involve behavior analysts’ standards and performance as supervisors, as well as compliance with coursework. For failure to report, the focus is on responding, reporting, and providing updated information to the BACB in a timely manner. Finally, the section on professionalism and integrity addresses multiple code elements, including integrity, professionalism, and scientific relationships, as well as methods for promoting an ethical culture and decisions involving ethical violations by others. Importantly, we provide guidance on the structure and organization of supervision, methods and guidelines regarding reporting, and rubrics to shape and evaluate professionalism and integrity. We provide recommendations for the supervision process and for practitioners from the organizational perspective so that the organization supports and promotes an ethical culture.

Do Anxious Swimmers Swim Slower? Reexamining the Elusive Anxiety-Performance Relationship

1988 ◽  
Vol 10 (1) ◽  
pp. 45-61 ◽  
Author(s):  
Damon Burton
Keyword(s):  
Low Complexity ◽  
Performance Measure ◽  
Somatic Anxiety ◽  
Self Confidence ◽  
Cognitive Anxiety ◽  
Long Duration ◽  
Two Samples ◽  
And Performance ◽  
Moderate Complexity ◽  
The Relationship

The purpose of this investigation was to utilize a multidimensional measure of anxiety and a more sensitive intraindividual performance measure to evaluate the relationship between anxiety and performance. Three hypotheses were tested. First, cognitive anxiety is more consistently and strongly related to performance than is somatic anxiety. Second, somatic anxiety demonstrates an inverted-U relationship with performance, whereas self-confidence and performance exhibit a positive linear relationship and cognitive anxiety and performance exhibit a negative one. Finally, short duration and high and low complexity events demonstrate stronger relationships between somatic anxiety and performance than do long duration or moderate complexity events. Two samples of swimmers completed the CSAI-2 prior to competition, and performance data were obtained from meet results. Correlational and multiple regression analyses generally supported Hypotheses 1 and 3, while polynomial trend analyses on standardized CSAI-2 scores confirmed trends predicted in Hypothesis 2. Overall, these results not only revealed that improved instrumentation allows demonstration of consistent anxiety-performance relationships, but they also provided additional construct validity for the CSAI-2.

scholarly journals Applicability of Artificial Neural Networks to Predict Mechanical and Permeability Properties of Volcanic Scoria-Based Concrete

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Aref M. al-Swaidani ◽  
Waed T. Khwies
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Network Architecture ◽  
Supplementary Cementitious Material ◽  
Natural Pozzolans ◽  
Long Time ◽  
Ann Models ◽  
Artificial Neural ◽  
And Performance ◽  
And Training

Numerous volcanic scoria (VS) cones are found in many places worldwide. Many of them have not yet been investigated, although few of which have been used as a supplementary cementitious material (SCM) for a long time. The use of natural pozzolans as cement replacement could be considered as a common practice in the construction industry due to the related economic, ecologic, and performance benefits. In the current paper, the effect of VS on the properties of concrete was investigated. Twenty-one concrete mixes with three w/b ratios (0.5, 0.6, and 0.7) and seven replacement levels of VS (0%, 10%, 15%, 20%, 25%, 30%, and 35%) were produced. The investigated concrete properties were the compressive strength, the water permeability, and the concrete porosity. Artificial neural networks (ANNs) were used for prediction of the investigated properties. Feed-forward backpropagation neural networks have been used. The ANN models have been established by incorporation of the laboratory experimental data and by properly choosing the network architecture and training processes. This study shows that the use of ANN models provided a more accurate tool to capture the effects of five parameters (cement content, volcanic scoria content, water content, superplasticizer content, and curing time) on the investigated properties. This prediction makes it possible to design VS-based concretes for a desired strength, water impermeability, and porosity at any given age and replacement level. Some correlations between the investigated properties were derived from the analysed data. Furthermore, the sensitivity analysis showed that all studied parameters have a strong effect on the investigated properties. The modification of the microstructure of VS-based cement paste has been observed, as well.

Effect of training on plasma myeloperoxidase concentrations measured before and following intense exercise in Thoroughbred racehorses

2016 ◽  
Vol 12 (1) ◽  
pp. 17-25 ◽  
Author(s):  
R.G. Fonseca ◽  
D.A. Kenny ◽  
B.A. McGivney ◽  
B.A. Murphy ◽  
E.W. Hill ◽  
...  
Keyword(s):  
High Speed ◽  
Venous Blood ◽  
White Blood Count ◽  
Training Intensity ◽  
High Intensity Training ◽  
Thoroughbred Racehorses ◽  
Sampling Points ◽  
And Performance ◽  
Response To Exercise ◽  
And Training

Exercise in horses induces neutrophil degranulation and subsequent increases in plasma myeloperoxidase concentrations (MPO). It is not known whether this response is affected by training or the sampling time in relation to exercise. Our objective was to evaluate plasma MPO concentration at different time points in response to exercise in Thoroughbreds before and following high-intensity training and to evaluate relationships between plasma MPO concentration, physiological measurements and performance. Throughbred racehorses in active training and racing (n=26) performed an exercise test on a high-speed treadmill at least once at the beginning (first three months), middle (second three months) or end (last three months) of a nine month training period with training intensity (number of fast work sessions) collated for each period. Heart rate, speed and distance were recorded and venous blood collected before (T0), during and up to maximal speed (TVmax), 5 min (T5min) and 4 h (T4h) following exercise for measurement of plasma lactate, serum creatine kinase concentration, plasma MPO concentration, white blood count (WBC), neutrophil count (Neut), lymphocyte count and neutrophil percentage (%Neut). WBC increased above T0 values at all sampling points with no training effect. Neut and %Neut increased above T0 values at T4h, while values at TVmax, T5min and T4h increased as training duration increased. Plasma MPO concentration increased above T0 values at all sampling points in response to exercise with all values increasing as training duration increased. Training intensity did not affect any of the measurements, correlations were not identified between any of the biological markers including MPO and physiological and training measurements and no differences were identified between elite versus non-elite horses. It was concluded that plasma MPO concentration is affected by exercise and training duration, and that further investigation of plasma MPO as an assessor of fitness and readiness for competition is warranted.

scholarly journals Pemberian minuman kombinasi maltodekstrin dan vitamin C terhadap mood negatif dan VO2 maks atlet sepak bola

2017 ◽  
Vol 13 (4) ◽  
pp. 196
Author(s):  
Yuni Afriani ◽  
Noor Rochman Hadjam ◽  
Arta Farmawati
Keyword(s):  
Physical Exercise ◽  
Vitamin C ◽  
Performance Test ◽  
Potential Effect ◽  
Plain Water ◽  
Vo2 Max ◽  
Subject Design ◽  
Quasi Experimental ◽  
And Performance ◽  
Mood Condition

Background: Stress during the match can influence the change of mood and performance of athletes. Physical exercise can improve the ability of physiologically and psychologically, but lead to fatigue, dehydration and hypoglycemia. Maltodextrin has a lower osmolarity to improve emotional and performance. Vitamin C as a cofactor of neurotransmitters can support the performance of athletes.Objective: This study aimed to determine the effectiveness of a combination drinks of maltodextrin and vitamin C on mood and the correlation with VO2 max of football athletes.Method: This research is a quasi experimental with same subject design. The subjects were 14 University state of Yogyakarta football athlete. Subjects received a drink of 15% maltodextrin and 250 mg of vitamin C in 300 ml given 30 minutes before and 5 minutes after the performance test using yo-yo intermittent test continued by physical exercise. Measurement of mood would be done in 3 times; before cardiorespiratory test, 5 minutes after physical exercise, and 15 minutes after drink.Results: There are significant changes after consuming a combination of maltodextrin and vitamin C on the confusion (p<0.05), while components of anger, fatigue, depression, tension and vigor (p>0.05). There are significant changes after consuming plain water on fatigue and tension (p<0.05), while anger, confusion, depression, and vigor (p>0.05). There are no significant differences in every components of mood between two treatments. There is a correlation between anger and confusion with cardiorespiratory after consuming a combination of maltodextrin and vitamin C.Conclusion: Maltodextrin and vitamin C has the potential effect to improve the mood condition and have a correlation with VO2 Max improvement in football athletes.

The Evolving Role of Task-Group Leaders, A Field Study

1988 ◽  
Vol 32 (13) ◽  
pp. 760-764
Author(s):  
Robert F. Randolph
Keyword(s):  
Group Performance ◽  
Training Data ◽  
Underground Coal Mining ◽  
Group Leaders ◽  
Underground Coal Mines ◽  
And Performance ◽  
Task Oriented ◽  
The Impact ◽  
And Training

Leaders of task-oriented production groups play an important role in their group's functioning and performance. That role also evolves as groups mature and learn to work together more smoothly. The present study uses a functional analysis of the evolving role of supervisors of underground coal mining crews to evaluate the impact of supervisors' characteristics and behaviors on their crews' efficiency and safety, and makes recommendations for improving supervisory selection and training. Data were gathered from a sample of 138 supervisors at 13 underground coal mines. Detailed structured observations of the supervisors indicated that most of their time was spent attending to hardware and paperwork, while comparatively little time was spent on person to person “leadership”. The findings point out that while group needs changed over time, the supervisors' behaviors typically did not keep pace and probably restricted group performance.

Research on Cultural Factors in Global E-Learning

2011 ◽  
pp. 1758-1765
Author(s):  
Donald Stepich ◽  
Seung Youn (Yonnie) Chyung ◽  
Allison Smith-Hobbs
Keyword(s):  
Global Economy ◽  
Cultural Dimensions ◽  
Web Page ◽  
Large Numbers ◽  
Learning Programs ◽  
E Learning ◽  
Traditional Classroom Instruction ◽  
And Performance ◽  
And Training ◽  
Theoretical Overview

Simply put, e-learning refers to Internet-based learning. E-learning can take place by reading a piece of information, such as a Web page, or completing a package of instruction, both of which are designed to impact learning and performance (Rosenberg, 2000). E-learning has rapidly gained momentum, especially in large international companies, due to the globalization of business. Businesses in the current global economy need to provide fast-changing information to large numbers of employees and customers at dispersed locations more efficiently than ever (Rosenberg, 2000). Although traditional classroom instruction is still the primary mode for delivering training (Sugrue, 2003), e-learning enables the delivery of content to global locations in a timely manner (Hartley, 2001). Although e-learning promises learning opportunities for anyone, anytime, and anywhere, reliably producing successful learning outcomes is a challenge. Unfortunately, e-learning programs often suffer high dropout rates (Wang, Foucar-Szocki, Griffin, O’Connor, & Sceiford, 2003). There are various reasons for this, but with e-learning, “the lack of cultural adaptation is a leading reason why e-learning fails to work” (Dunn & Marinetti, n.d.). This article addresses e-learning as a method for both education and training in a global economy, and it questions how e-learning can effectively reach a multicultural audience. It provides a theoretical overview of various cultural dimensions, and addresses the importance of considering multicultural factors and strategies in the design of e-learning.

Prioritising Performance-—Where Does Health Fit In?

2018 ◽  
Vol 33 (3) ◽  
pp. 221-222
Author(s):  
Bronwen J Ackermann
Keyword(s):  
Mental Health ◽  
Current Issue ◽  
Physical And Mental Health ◽  
Performance Capacity ◽  
Good Shape ◽  
Psychological Training ◽  
Complex Balancing ◽  
And Performance ◽  
Training Demands

Elite performance encompasses a complex balancing act involving a series of professionals attempting to help an individual perform to the limit of their abilities, whilst simultaneously striving to further their capacity. Teachers and performance scientists are under pressure to try to push performers harder to be able to achieve success in competitions, performances and their career. Clinicians must strive to keep the physical and mental health of performers in as good shape as possible while they are balancing these often extreme physical and psychological training demands-—‘the show must go on.’ Efforts to better understand mechanisms that may impact both performance capacity and risk to health are therefore highly important, and feature in research presented in the current issue.

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