Competitive Experience Research Articles

The Effect of Training Experience on Postural Control in Competitive Wrestlers.

The aim of this study was to evaluate the effects of training experience in wrestling on postural control. Fourteen elite athletes with at least 8 years of wrestling training and competition experience participated in the study. The control group consisted of fifteen healthy adults who were not competitive athletes. The center of pressure (COP) trajectories were recorded with the use of an AMTI force plate at a sampling frequency of 50 Hz. The rambling-trembling decomposition method was used to analyze the COP trajectory data. The main finding was a significant effect of training experience on postural control in only the sagittal plane. Interestingly, significant differences in velocity were observed for the trembling component of the COP. All described variables were significantly higher in wrestlers. We hypothesized that balance training may lead to task-specific neural adaptations at the spinal and supraspinal levels. It was concluded that further research of high methodological quality is needed to determine the effect of training experience on balance control in elite athletes. Additionally, this effect should be observed in youth athletes, as it may be treated as a selection criteria in the training process.

Does adolescents like modern sports experiences? A trivial question for a major public health stake

Abstract Background Improving adolescents’ levels of sport and physical activity ‘PA’ is an official public health issue. However, national and European studies showed decline in overall levels of PA of European adolescents. In France, a school-based study showed a decrease in sport participation among adolescents of Marseille and area. Despite of this decline, we do not know whether they have a positive appreciation of modern sports experiences promoted in clubs. In this study, we aimed to measure French adolescents’ athletes retrospective reports of pleasure in these experiences. Methods A previous data collection among a representative sample of adolescents’ students was used (n = 1132). Adolescents were separated into 4 subgroups based on sex (Boys/Girls) and socioeconomic status ‘SES’ (Low/High). The Sport Experiences Questionnaire was used to measure retrospective reports of pleasure in competition, progress and risk-taking experiences. Multivariate linear regressions were performed to show differences between sex, SES and setting of participation (competition/no-competition). Densities diagrams were also presented. Results Among girls and boys, the setting of participation was significantly positively linked to reported pleasure. This effect was greater for competition experiences, respectively 1.45-fold and 1.53-fold increase for competition than no-competition players, for boys and girls. Among girls, high-SES girls presented a lower appreciation of competition experiences than their counterparts with low-SES. This relationship was observed in non-competitive (B=-0.62, p-value=0.016) and competitive (B=-0.70, p-value=0.025) settings. Finally, progress experiences were appreciated by all. Conclusions These results may help to step back traditional instituted sports offer. They would help to develop sports initiatives adapted to adolescents’ tastes. Finally, progress experiences may be gold experiences in sport and should be promoted in all context of participation. Key messages Modern sport experiences are not appreciated by all subgroups of adolescents. Endeavors to improve sport participation of adolescents should adapt contents to adolescents’ tastes. Pleasure in competition and risk-taking are linked to setting of participation and adolescents’ SES. The progress experiences may be the gold standard of sports experiences.

Assessing DOJ’s Proposed Remedy in Sprint/T-Mobile: Can Ex Ante Competitive Conditions in Wireless Markets Be Restored?

As economists with significant experience in competition and regulatory matters, we offer comments on the remedies proposed by the Department of Justice to address the competitive effects flowing from the proposed merger of Sprint and T-Mobile, as recognized by the DOJ’s Complaint. We find that the Proposed Final Judgment cannot and will not address the anticompetitive harms identified in the Complaint, or restore the ex ante competitive conditions in the affected antitrust product markets. By eliminating Sprint as an independent competitor, the Sprint/T-Mobile merger, even in the presence of DOJ’s proposed remedy, would inflict serious antitrust injury on consumers and competition.

Market interaction and efficient cooperation

We experimentally study causal effects of competitive experience in markets with a short and a long side on efficiency levels attained in a subsequent social dilemma. We find that market experience affects efficiency when traders previously competed in the same market on the same side. The effect is strong for market-loser pairs and also exists for market-winner pairs, albeit to a lesser extent. Cooperation efficiency is unaffected for pairs consisting of a market-winner and a market-loser. When traders did not interact on the same market before, efficiency of cooperation is higher for market-winner pairs, but only in the short run.

Carry-over effects of resource competition and social environment on aggression

AbstractAggressive behavior is common in many species and is often adaptive because it enables individuals to gain access to limited resources. However, aggression is also highly plastic and the degree of plasticity could be influenced by factors such as resource limitation and the social environment. In this study, we examined how the effects of social experience and resource limitation could persist to affect future aggressive interactions. Using naturally inbred strains of Drosophila melanogaster that differ in aggressiveness, we manipulated the level of available resources by varying fly density (two treatments: high and low per capita resources) and group composition by varying strain frequency (five treatments: homogeneous strains, or mixed at 1:3, 1:1 or 3:1 ratios of the more aggressive to less-aggressive strain). For each treatment group, we measured aggression before and after flies were placed through a 4-day period of fixed resources. There was no consistent effect of resource competition on aggression. Instead, changes in aggression depended on resource availability in combination with group composition. In homogeneous groups made up of only one strain, all males became more aggressive following the fixed-resource period, regardless of fly density. In mixed-strain treatments at high density, we observed plastic shifts in aggression of males from both strains, but the direction of plastic responses depended on social composition. Our results show that aggression may not only be influenced by the intensity of previous competitive experiences caused by resource limitation, but also through social effects caused by the composition of the group.

Reducing Self-Stigma in People with Severe Mental Illness Participating in a Regular Football League: An Exploratory Study.

For the past 15 years, a regular indoor football competition has been taking place in Madrid (Spain) with 15 teams from different mental health services in the city, in which teams face off weekly as part of a competition lasting nine months of the year. We are not aware of whether a similar competition experience is offered in other cities. The purpose of the present study was to evaluate whether participating in this league, called Ligasame, has an influence on participants’ self-stigma. To do so, the Internalized Stigma of Mental Illness scale (ISMI) was adapted into Spanish and applied to 108 mental health patients, 40% of which participated in Ligasame, and the remainder of which did not. The results obtained reflect significant differences between those participating in Ligasame and those that did not in terms of two specific dimensions related to self-stigma (stereotype endorsement and stigma resistance) and total score. On the other hand, no significant differences were found in terms of other variables, such as patients’ prior diagnosis, age or belonging to different resources/associations. In this article, we discuss the importance of these results in relation to reducing self-stigma through participation in a regular yearly mental health football league.

Effects of self-regulatory processes on cognitive representation of team-specific tactics in junior male soccer players

The present study aims to demonstrate the relationship between cognitive and behavioral variables that configure expert performance by testing if training in self-regulatory processes would affect the organization of tactics mental representation in soccer. A 2 × 2 mixed design was applied, manipulating the level of training in self-regulatory processes between groups and the moment of evaluation within groups. Participants were 13 under-15 year-old male soccer players from Montevideo, Uruguay, with an average of 9.38 years of competitive experience. The experimental group went through 10 individual weekly sessions of training in self-regulatory processes comprising 11 out of 18 self-regulatory processes presented in Zimerman’s Multiphasic Cycle of Self Regulatory Processes. Greater improvement on the cognitive representation of tactics was observed in the experimental group, which revealed more functionally organized clustering of offensive and defensive team-specific tactical concepts in long-term memory after the training. Results showed significant differences in the organization of tactical knowledge in long-term memory due to the participation in a training program on self-regulatory processes focusing on tactical actions in soccer. This study extended the effects of self-regulatory processes, previously evidenced in specific situations in other sports, to the organization of tactics mental representation in soccer. The effects are related to the facilitation of learning processes caused by the use of self-regulatory processes. The systematic application of learning strategies adapted to tactical situations seemed to enable participants to organize tactical knowledge in long-term memory.

Assessment of Tax competition Influence on National Tax System Competitiveness

The subject of the research is the condition of cross-country tax competition and its influence on the tax system compatibility. The urgency of the research is determined by the prospects of tax government risks mitigation tools introduction in response to the necessity to reduce budget deficit on the whole and to the increasing risks of competitiveness lowering as a result of growing tax bases mobility in particular. The purpose of the work is to assess the tax competition influence on competitiveness of national tax systems on the basis of cross-countries tax competition experience in the European Union. The content and essence of tax competition are revealed. It is justified that risk of tax system competitiveness reduction is closely connected with the process of tax competition. Cross-countries tax competition is illustrated with the experience of the EU member countries. The statistical data confirming the trend to reduce tax rates in the EU countries are given. Factors of national systems competitiveness are defined. They are the level of tax burden on citizens’ income and business revenue, the amount of taxes and dues, period of time provided to prepare tax records and paying taxes, ratingDoing Business,average annual economy growth rate, cost of labor and level of corruption. On the basis of the multicriterion methodsSAWandPROMETHEE IIa technique to determine tax competitiveness is presented.

Towards a shared understanding of the service experience – a hospitality stakeholder approach

Purpose The purpose of this paper is to start a conversation on achieving a shared understanding among hospitality service co-creation participants. Adopting a stakeholder and service eco-systems approach, attention is drawn to the necessity for all service experience participants to have a shared understanding of the service experience and their role within it, for a sustained competitive advantage to be realized. Informed by community of practice (CoP) thinking, a road map of research questions is advanced encouraging insight into a macro level phenomenon that, traditionally, is only ever considered at the micro service encounter level. Design/methodology/approach A thorough multidisciplinary review of the literature was undertaken, providing an opportunity to present a viewpoint on the strategic implications of providing a sustainable competitive advantage via the hospitality service experience. Findings To achieve a shared understanding across the Hospitality Service Experience Eco-System, potential tensions among stakeholders are highlighted. Accounting for such barriers, institutional arrangements, combining organizational CoPs that are bridged by designated boundary objects, is advanced. Given the novel approach of applying a traditionally organizational phenomenon at a macro multi-stakeholder level, several research questions are proposed to inform thinking about this neglected perspective. Originality/value Acknowledging the innovation, agility and resources required to maintain a competitive service experience, the paper emphasizes the importance of adopting a macro perspective to effective service management. The hope is to stimulate academic interest to inform understanding as to how to build this capability as well as enhance practitioner interest in promoting stakeholders’ CoP for the benefit of the entire Hospitality Service Experience Eco-System.

Peculiarities of Changes of Young Swimmers’ Anthropometric Profile in the Time of Intensive Training and Its Correlation with Sports Results

Background. Knowledge of the peculiarities of anthropometric indicators, body weight components, and somatotype of athletes is important for coaches, sports scientists, and sports physicians at all stages of perennial training, starting with children’s sport. Often this is seen as an important indicator for identifying talented children in sport. The aim of this study was to determine how the anthropometric and body weight profile of young swimmers (11–12 years) significantly changes during the training period, and the correlation of these indicators with the competition results in the chosen event.Methods. The study included 24 young (aged 11.7 ± 0.5 years) national level swimmers – girls (n = 14) and boys (n = 10) with 3 to 4 years of sports experience in the national competitions and demonstrating high results in their age group. We investigated longitudinal anthropometric measurements, body mass components, established the somatotype and handgrip strength. The change of indicators was analysed during the training period of five months as well as its correlation with the result in the chosen sport. Sports results were rated by FINA ranking points.Results. The anthropometric longitudinal and transverse dimensions of girls and boys increased during the study period, however, there was no difference between the sex groups except for the length of the foot (it was higher in the group of boys, p < .05). The analysis of body weight components showed that girls had higher body fat mass and a percentage of body fat than boys (p < .05). The results of boys’ swimming had statistically significant links with their height (r = .857), foot length (r = .805), body weight (r = .857), lean mass and muscle mass (r = .927) and right handgrip strength (.786). There was no significant correlation between these indicators in the group of girls.Conclusion. The results of the study suggest that the characteristics of the anthropometric profile as a prognostic indicator for the viability in the chosen sport for boys were more significant than for girls.

Rhetorical Competitions as a Means of Developing Communicative and Linguistic Competences in 10th–11th Grade School Students of a Polycultural School

This study was aimed at identifying new effective forms that could facilitate the achievement of a practice-oriented result, i.e. students’ ability to communicate in any speech situation, as well as their readiness for various kinds of oral and written examination tests, including the public defence of projects in the 10th grade and writing December essays in the 11th grade. The article considers rhetorical competitions as a means of developing communicative and linguistic competencies among 10th–11th grade students of a polycultural school. The article provides recommendations on organizing such competitions, criteria for evaluating presentations, examples of oral presentations. A textual analysis of the folklore material of Dagestanian and Russian fairy tales and proverbs allowed the authors to conclude that an inexhaustible set of universal themes that have become the subject of reflection in different nations, can teach students to respect other cultures and extend their knowledge of the world and other people. The experience of a rhetorical competition in high school on the basis of fairy tales and proverbs of different nations is expected to help students form such core competencies as critical thinking, creativity, communication and cooperation (ability to work in a team).

A Case Study of Junior Elite Tennis Players' and their Parent’s Self-Talk

Automatic self-talk of elite athletes provides valuable insight into their emotional experience and self-regulation strategies in competition. To date, there is a shortage of research examining elite junior athletes’ automatic self-talk in competition through a qualitative lens. Despite parents’ key role in the well-being and performance of their child, there is no study about junior elite athletes’ and their parents’ self-talk during a competition. Hence, the aim of this study is to examine the content of elite junior tennis players’ automatic self-talk as well as the content of their parents’ self-talk regarding their emotions during important matches. In each of the two cases under investigation, individual in-depth interviews were conducted with a tennis player and his or her most dedicated parent. The results were analyzed using Yin’s (2014) multiple-case study strategy and Polkinghorne’s (1995) narration inquiry strategy. An analysis of automatic self-talk content was conducted individually for each case, followed by an intra-case and cross-case analysis. The results reveal that each player’s and parent’s automatic self-talk is related to their own subjective emotional experience during the matches. The findings highlight similarities in athletes’ and parents’ self-talk patterns, reflecting the potential influence of parents in athletes’ performance pressure and their goal-directed self-talk strategies. The differences observed between the self-talk of players and their parents demonstrate the relevance of examining their profiles to better understand the origin of individual differences in self-talk.

Analysis of pre-competitive anxiety of Brazilian young swimmers

This study analyzed the level of state-anxiety of swimming athletes based on sex, category, competitive specialty, competitive level and competitive experience. Participants were 178 male (n = 105) and female (n = 73) swimmers with mean age of 15.51 ± 1.9 years at regional, national and international levels. The Competitive State Anxiety Inventory-2 (CASI-2) was used as instrument. Data analysis was conducted using the independent Student’s t-test, Mann-Whitney, Kruskal-Wallis and Spearman correlation. The results showed higher levels of self-confidence in males (p = 0.02) and higher levels of cognitive anxiety in females (p = 0.019). Among the competitive specialties, there were differences between levels of cognitive anxiety (p = 0.045) and self-confidence (p = 0.041) of swimmers. Differences were also observed in levels of cognitive anxiety (p = 0.049), somatic anxiety (p = 0.001) and self-confidence (p = 0.047) between swimming competition levels. It was concluded that male swimmers are more self-confident and less anxious than female swimmers and there are different levels of self-confidence and types of anxiety for different competitive specialties and ranking of competitions.

Effects of the Safety Squat Bar on Trunk and Lower-Body Mechanics During a Back Squat.

Hecker, KA, Carlson, LA, and Lawrence, MA. Effects of the safety squat bar on trunk and lower-body mechanics during a back squat. J Strength Cond Res 33(7S): S45-S51, 2019-The purpose of this study was to determine whether the safety squat bar (SSB) alters the mechanics and muscle activity of a back squat compared with a standard barbell (ST). Motion and muscle activation of the trunk and lower extremity were measured while 12 competitive powerlifters (8 males, 4 females, age 31.5 ± 6.3 years, body mass 88.1 ± 20.7 kg, competitive lifting experience 3.3 ± 2.8 years) squatted 3 sets of 5 repetitions at 75% of their 3 repetition maximum (3RM). Mean muscle activity and peak joint flexion angles were measured for the trunk and one lower extremity. A repeated-measures analysis of variance (p = 0.05) revealed an 11.3% decrease in 3RM when using the SSB. When using the SSB, there was a decrease in trunk and hip flexion (7.3 and 5.7° respectively) and a 50.3% increase in lower trapezius activation. However, using the SSB decreased activation of the rectus abdominis (46.3%), medial hamstring (17.1%), lateral hamstring (15.1%), vastus lateralis (9.3%), and medial gastrocnemius (18.8%). Squatting with the SSB resulted in a more upright trunk angle, which places less stress on the lower back, a commonly injured area when squatting. Decreases in lower-extremity muscle activation are likely due to the decreased load used, suggesting that the SSB may not be as effective as a standard bar to increase lower-extremity strength. However, the increase in the lower trapezius with the lighter load suggests that midback musculature may be challenged more by the SSB than a standard barbell.

Experience, riding practices and training methods of Fédération Equestre Internationale (FEI: 80-160 km) level endurance horse rider-owner-trainers in New Zealand

Riders and training have been implicated as contributing to poor performance and adverse horse welfare outcomes in endurance competitions (‘rides’). This study described the experience, riding practices and training methods of a cohort of 21 Fédération Equestre Internationale (FEI: 80-160 km) level endurance rider-owner-trainers in New Zealand. Data were collected via face-to-face survey and descriptive statistics calculated. Respondents had a median 13 (interquartile range [IQR] 9-15) years’ experience in domestic competition and 7 (IQR 4-10) years in FEI competition. Respondents were mostly amateur (67%, 14/21), >40 years of age (86%, 18/21), female (76%, 16/21), riders (95%, 20/21), owners (91%, 19/21) and trainers (95%, 20/21) with ≤2 FEI level horses (53%, 11/21). Over half (62%, 13/21) intended to prepare horses for a 160 km competition over a 26-41 week season. Respondents reported using additional fitness training (86%, 18/21) and athlete support services such as chiropractic (29%, 6/21), massage (29%, 6/21) or physiotherapy (19%, 4/21) so they could ride better. Most (86%, 18/21) respondents reported they employed schooling using equitation techniques to develop riding skills and supple, sound, rideable horses. Ridden aerobic distance training was complemented with a median 6 (IQR 5-8) other training methods for convenience, enabling amateur respondents to schedule training around employment. Furthermore, respondents intended to use a series of 40-80 km rides for training purposes for most (94%, 34/36) horses instead of time-trial type training sessions reported in other countries. This cohort of experienced amateur semi-elite to competitive elite rider-owner-trainers in New Zealand appear to self-coach, taking responsibility for the development of their horses, and working pro-actively to improve aspects of their riding practices and training that might improve performance. These findings can inform further exploration of how rider characteristics inform and influence training and competition practice and outcomes.

Coaches’ and Young soccer players' training load perceptions during different training phases

Objective: To our Knowledge, information about the agreement between coaches’ and the young soccer players’ session rating of perceived exertion is not consistent during specific periods of training (intensification and taper) and has not been established. The purpose of this study was to examine and compare the internal training load and session rating of perceived exertion between coaches’ and young soccer players’ during three weeks in different training phases.
 Method: Participants were 16 male elite Under19 soccer players and their coaches. Before each training session, the coaches reported a session rating of perceived exertion using the Borg CR-10 scale as well as the planned duration (min) of the training based on prior planning, while the athletes responded the scale after each training session.
 Results: No differences in intensity session rating of perceived exertion (t = 0.49; p = 0.62) and training load (t = 0.18; p = 0.86) were observed between coaches and players during the training period analyzed. During different training phases, no significant differences were found during intensification (t = 0.18; p = 0.85) and taper (t = -0.19; p = 0.85) in training loads and in the session rating of perceived exertion prescribed by coaches and perceived by players. A very large correlation was observed between coaches training load (r= 0.84) and players training load. However, a trivial correlation was found between players training load and changes in the Yo-yo IR1 performance (r= -0.09), age (r= -0.06) and years of competitive experience (r= -0.08). Stepwise linear regression revealed that coaches training load (F1; 238= 582.7; R2= 0.710; p<0.001) explained 71% of the variance in players training load.
 Conclusion: The results suggest that the session rating of perceived exertion and training load prescribed during three weeks in different training phases (by coaches) was not different from perceived by young soccer players. Moreover, coaches training load seem to be effective to predict the training load in soccer players.

Digital Recording Devices is Element of Safety of the Road Transport

Abstract The duty of applying recorders in the road transport was implemented in states of the European Union on regulations (EWG) no. 3820 / 85 on harmonizations of some social welfare legislation referring to the transport, which was changing with regulation (EWG) no. 3821/85 on recorders applied in the road transport. The duty of implementation of the digital tachograph is also considered in the context of improving road safety. Through the analysis of the records of the registering devices can be defined in each specific case of speeding by more than the allowable value in the area. Technical requirements for your device recorded in the resolution, which defines the main parameters, are measured, among things other, the traversed path length of the car, speed, time driving, other periods of work, politeness of the driver and the correct operation of the check authorized for those authorities. At present led Regulation (EU) No 165/2014 of European Parliament establishing requirements concerning structure, checking, installation, use and repairs of tachographs and their building blocks is implementing the second generation of the digital tachographs connected with the device GNSS (Global Navigation Satellite System). Organizing the early detection from a distance is showing data officers from the digital tachograph and information concerning mass and mass falling on the wasp of the entire team of vehicles. Experience in work, economic pressures and competition in transport has led the drivers through a transport company in the event noncompliance, and in particular, in relation to the driving time and breaks. This article contains responsibilities after part rest on the drivers of vehicles takes the issues of system security and optimum performance of recording devices.

A Study on the Process of Forming Career Awareness of University Students Majoring in Hapkido through the University Life and the Hapkido Competition Experience

A Study on the Process of Forming Career Awareness of University Students Majoring in Hapkido through the University Life and the Hapkido Competition Experience

Submaximal Cricket Fast Bowling Offers a Disproportionate Reduction in Loading Versus Performance: An Alternative Workload Intervention.

Cricket fast bowlers are particularly susceptible to lumbar spine loading and injury. Quantitative analysis of technique typically involves laboratory-based biomechanical systems with limited ecological validity, whereas contemporary developments in global positioning satellite microtechnologies facilitate an on-field evaluation of loading. To quantify the influence of submaximal bowling from reduced approach lengths on performance and loading. Repeated-measures, field-based design. Regulation cricket pitch. A total of 12 male cricket academy fast bowlers (18.7 [0.7]y), injury free with ≥3years of competitive experience. Each bowler wore 2 global positioning satellite units placed at C7 and L4 to measure triaxial acceleration (100Hz). Bowlers completed an over (6 deliveries) from a randomized 3-, 6-, 9-, and 12-stride approach. Ball speed was recorded as the performance measure, with PlayerLoad in the anteroposterior, mediolateral, and vertical planes also calculated for each delivery length. In ball speed, there was a significant main effect for delivery length (P = .02), with a 3-stride approach eliciting significantly less ball speed than a 9-stride (P = .03) or 12-stride (P = .002) approach. In loading, there was a significant main effect for delivery length (P < .001) in the anteroposterior, mediolateral, and vertical planes, with loading increasing linearly as a function of delivery strides. The 6-stride approach elicited a 44% reduction in loading, with a disproportionately small 3.5% decrease in performance. There was a significant main effect for global positioning satellite location (P ≤ .023) in all planes, with L4 eliciting greater loading than C7. A submaximal 6-stride approach yielded the optimum balance between reduced loading and performance inhibition. Reduced delivery length, therefore, offers an alternative to reduced overs in reducing loading in young bowlers and might also have practicable value in the rehabilitation of bowlers postinjury.

How to liberalise rail passenger services? Lessons from european experience

This paper studies the experience of Europe's three most liberalised railways - Sweden, Germany and Britain - in opening-up rail passenger services to competition by means of competitive tendering, and seeks to draw lessons for countries that are just starting the process, such as France. It also comments on experience of competition in the market in these and other countries (this form of competition has been taken furthest in other countries - notably Italy and the Czech Republic, as well as on a single route in Austria). The paper fills an important gap in the literature - that has so far focused on econometric modelling of the impact of rail reforms - by considering how competition can best be introduced in practice. This investigation is important and timely given the requirements of EU legislation (4th Railway Package) which will require competition to be introduced into passenger rail services (by 2020 for commercial services, and 2023 for public transport contracts) across the whole of the EU. It finds evidence that competitive tendering has helped increase demand for and reduce subsidies to the rail passenger sector, but that there are many decisions that have to be taken as to how it is to be implemented. Short gross cost contracts may work well for regional services where the tendering authority takes the lead in planning and marketing such services. If services where ticket revenue recovers a larger share of costs – “more commercial services” – are to be tendered, long net cost contracts may make more sense. An alternative is to leave them operated by the incumbent but with open access for competitors to enter the market. Two particular issues face countries starting on the liberalisation process. Firstly, if existing rolling stock is owned by the incumbent rather than the franchising authority or an independent company; that remains a major barrier to entry. The second is the position of existing staff. If new operators are required to take them on at existing wages and conditions; that is a barrier to improved efficiency, but for new operators to recruit their own staff may also be problematic, particularly where the pace of change is fast.