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Reinvestment--the cause of the yips?

ABSTRACT: The yips is a multi-etiological phenomenon consisting of involuntary movements during the execution of a skill (e.g., a golf putt). Reinvestment, the conscious control of a movement that detrimentally affects automated movements, is thought to be a potential mechanism leading to the yips. Preventing yips-affected golfers from consciously controlling their movement, therefore, should be beneficial. The aim of the study was to be the first to empirically test in a laboratory whether reinvestment causes the yips and to explore if the tendency to reinvest can explain yips behavior. Nineteen yips-affected golfers participated in a lab experiment. They putted with the dominant arm in a skill-focus and an extraneous condition, in which they had to perform different dual tasks designed either to direct their focus on their own skill or to distract them from it. The tendency to reinvest was estimated via the Movement-Specific Reinvestment Scale. Yips behavior was assessed by putting performance and movement variability. Although the dual-task performance showed that the attentional manipulation worked, the tendency to reinvest did not predict the behavior of the yips-affected golfers in either putting condition. The yips-affected golfers also showed no difference in yips behavior between the skill-focus and the extraneous condition. In other words, the attentional manipulation did not change yips behavior. The data do not support the assumption that there is a link between the yips and reinvestment, likely because of the multi-etiological nature of the yips. Other psychological or neurological mechanisms such as conditioned reactions may better explain the yips and should be investigated.

SUBMITTER: Klampfl MK

PROVIDER: S-EPMC3855447 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Reinvestment--the cause of the yips?

Klämpfl Martin Karl MK Lobinger Babett Helen BH Raab Markus M

PloS one 20131205 12

The yips is a multi-etiological phenomenon consisting of involuntary movements during the execution of a skill (e.g., a golf putt). Reinvestment, the conscious control of a movement that detrimentally affects automated movements, is thought to be a potential mechanism leading to the yips. Preventing yips-affected golfers from consciously controlling their movement, therefore, should be beneficial. The aim of the study was to be the first to empirically test in a laboratory whether reinvestment c ...[more]

PMID: 24340032

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Project description:"Yips" are involuntary movements that interfere with the automatic execution of sports movements. However, how the coordination among the various muscles necessary for sports movements is impaired in athletes with yips remains to be fully understood. This study aimed to assess whether muscle synergy analysis through non-negative matrix factorization (NMF) could identify impaired spatiotemporal muscle coordination in baseball players with throwing yips. Twenty-two college baseball players, including 12 with and 10 without yips symptoms participated in the study. Electromyographic activity was recorded from 13 ipsilateral upper extremity muscles during full-effort throwing. Muscle synergies were extracted through NMF. Cluster analysis was conducted to identify any common spatiotemporal patterns of muscle synergies in players with yips. Whether individual players with yips showed deviations in spatiotemporal patterns of muscle synergies compared with control players was also investigated. Four muscle synergies were extracted for each player, but none were specific to the yips group. However, a more detailed analysis of individual players revealed that two of the three players who presented dystonic symptoms during the experiment exhibited specific patterns that differed from those in control players. By contrast, each player whose symptoms were not reproduced during the experiment presented spatiotemporal patterns of muscle synergies similar to those of the control group. The results of this study indicate no common spatiotemporal pattern of muscle synergies specific to the yips group. Furthermore, these results suggest that the spatiotemporal pattern of muscle synergies in baseball throwing motion is not impaired in situations where symptoms are not reproduced even if the players have yips symptoms. However, muscle synergy analysis can identify the characteristics of muscle coordination of players who exhibit dystonic movements. These findings can be useful in developing personalized therapeutic strategies based on individual characteristics of yips symptoms.

Project description:BackgroundWales faces serious public health challenges, with relatively low life expectancies and wide inequalities in life expectancy with associated pressures on the National Health Service (NHS) at a time of financial recession. This has led to growing recognition of the need to better understand the range of health improvement and prevention programmes across Welsh Government, NHS, local government and voluntary sector agencies.MethodsThe Minister for Health and Social Care commissioned Public Health Wales, the single national public health organisation, to establish a Health Improvement Advisory Group, to oversee a Programme Budgeting and Marginal Analysis (PBMA) expert panel. The panel drew on evidence from a range of sources to explore potential alternative modes of health improvement initiative delivery across Wales. Electronic voting was used to agree an appropriate time horizon for health improvement programme outcomes, main objective of the health improvement review and criteria for evaluating candidate services for disinvestment and investment. The panel also used electronic voting to state whether they wished to disinvest or invest in a candidate service.ResultsThe review identified a budget of £15.1 million, spanning 10 Welsh Government priority areas, and 6 life course stages. Due to lack of evidence the panel recommended total disinvestment in 7 out of 25 initiatives releasing £1.5 million of resources, and partial disinvestment in a further 3 interventions releasing £7.3 million of resources. The panel did not recommend increasing investment in any of the 25 initiatives under review. Marginal analyses prioritised child health, mental health and wellbeing and tobacco control as key areas for investment.ConclusionsWales is championing a concept of "prudent healthcare". The PBMA exercise undertaken here was a transparent evidence-based tool to reach decisions about potential for disinvestment and reinvestment in health improvement strategies. It also demonstrates the potential wider application at a national level across government public health functions, to ensure resources are most cost-effectively deployed, with due consideration for equity.

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Reinvestment--the cause of the yips?

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Reinvestment--the cause of the yips?

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