Developing a strategic research framework for Sport and Exercise Medicine

Holtzhausen, Louis; Zyl, G J van; Nel, Malan

doi:10.1136/bjsports-2013-093252

Cited by 4 publications

(4 citation statements)

References 13 publications

(7 reference statements)

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“…The current results show the sensitivity of CRC to training and detraining and highlight the value of incorporating complex systems approaches into the current strategic research framework for sport and exercise medicine (Holtzhausen et al, 2014 ). However, a longer term study would be required to test the sensitivity of CRC assessments.…”

Section: Discussionmentioning

confidence: 57%

Cardiorespiratory Coordination after Training and Detraining. A Principal Component Analysis Approach

et al. 2016

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Our purpose was to study the effects of different training modalities and detraining on cardiorespiratory coordination (CRC). Thirty-two young males were randomly assigned to four training groups: aerobic (AT), resistance (RT), aerobic plus resistance (AT + RT), and control (C). They were assessed before training, after training (6 weeks) and after detraining (3 weeks) by means of a graded maximal test. A principal component (PC) analysis of selected cardiovascular and cardiorespiratory variables was performed to evaluate CRC. The first PC (PC1) coefficient of congruence in the three conditions (before training, after training and after detraining) was compared between groups. Two PCs were identified in 81% of participants before the training period. After this period the number of PCs and the projection of the selected variables onto them changed only in the groups subject to a training programme. The PC1 coefficient of congruence was significantly lower in the training groups compared with the C group [H(3, N=32) = 11.28; p = 0.01]. In conclusion, training produced changes in CRC, reflected by the change in the number of PCs and the congruence values of PC1. These changes may be more sensitive than the usually explored cardiorespiratory reserve, and they probably precede it.

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Section: Discussionmentioning

confidence: 57%

Cardiorespiratory Coordination after Training and Detraining. A Principal Component Analysis Approach

et al. 2016

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“…It then seems reasonable to evaluate CRC together with the commonly registered maximal performance and cardiorespiratory variables to improve the interpretation of CET. These results highlight the value of incorporating complex systems approaches into the current strategic research framework for sport and exercise medicine (Holtzhausen et al, 2014).…”

Section: Discussionmentioning

confidence: 82%

Complex Systems in Sport, International Congress: Linking Theory and Practice

2017

Complex Systems in Sport, International Congress: Linking Theory and Practice

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Collective sports comprise of cooperative and competitive organizational processes in which players have to be predictable for teammates and sufficiently diverse and unpredictable for opponents in order to satisfy the goal constraints. In highly stable, repetitive and thus predictable (cooperative or non-cooperative) environments the adaptive system may converge to a minimum unpredictability by minimizing the diversity of accessible patterns of functional behaviour. However, sport competition, akin to life itself, is not a highly stable and repetitive process based on negotiating stable environment. It creates conditions where highly demanding non-cooperative behaviour of the environment is rather rule than an exception. In such stochastically changing and non-cooperative environments, systems (players and teams) must develop high behavioural unpredictability potential to increase their fitness to the competitive environment. This means that the adaptation process rests on a tendency of permanent increase of the unpredictability potential which affords the ultimate goal, the survival (winning) of the system in sports environments. This state of affairs suggests that performance may be conceptualized in terms of unpredictability/diversity potential and that its development can be understood by the juxtaposition of three principles of adaptive systems: (a) relativity of organism-environment unpredictability; (b) satisficing diversity/unpredictability potential; and (c) tendency towards non-decreasing unpredictability/diversity. (a) Relativity of organism-environment unpredictability: Collective sports adaptation is a process of becoming fit to one's environment. Becoming fit means that the environment becomes more informative and less constraining for the player/ team and, on the other hand, the player/team becomes less informative, and thus more unpredictable for the environment. The relativity of organism-environment unpredictability is based on the conservation of bio-motor information principle (Hristovski, 1989). This principle says that performance variables, including motor abilities (effectivities), such as power, agility, speed, strength, endurance, etc., may be treated as entropy measures forming a state space in which training induces conversion of entropy into information. By increasing the effectivities,

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“…Despite using Dillman’s recommendation of sending multiple reminders to the non-responders,22 the response rate was lower than expected. However, the study is in the range of Delphi studies in the sports and exercise medicine area where sample sizes of 10–60 participants have been reported 17 18…”

Section: Discussionmentioning

confidence: 99%

“…The advantage of this technique in comparison to other sampling techniques or methodologies (eg, nominal group or focus groups) is that it enables many individuals across a wide geographical area to contribute their expert opinion anonymously, thus avoiding domination of the consensus process by one or a few experts. The Delphi technique, originally developed in the 1940s as a strategic forecasting tool,15is widely used to obtain group consensus at minimal cost in a number of different domains including sports medicine 16–19. Overseen by a steering committee, the Delphi facilitates group consensus from a panel of experts via iterative surveys, where responses in each round are refined in light of group data from previous rounds.…”

Section: Introductionmentioning

confidence: 99%

Developing common demographic data elements to include in future editions of the SCAT and Child SCAT: a modified international Delphi study

et al. 2019

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BackgroundThe Sport Concussion Assessment Tool (SCAT) and Child SCAT are the ‘gold standard’ assessment tools for a suspected sport-related concussion (SRC). A number of ‘modifiers’ (eg, previous history of concussion) of a SRC have been identified. These may influence how the SCAT/Child SCAT results should be interpreted.ObjectivesTo achieve consensus, via an international panel of SRC experts, on which athlete/player and parent/caregiver demographic variables should be considered for inclusion in future editions of the SCAT/Child SCAT respectively.MethodsA two-round modified Delphi technique, overseen by a steering committee, invited 41 panellists to achieve expert consensus (≥80% agreement). The first round utilised open questions to generate demographic variables; the second round used a five-point ordinal item to rank the importance of including each variable in future editions of the SCAT/Child SCAT.Results15 experts participated in at least one Delphi round. 29 athlete/player and eight parent/caregiver variables reached consensus for inclusion in the SCAT, whereas two parent/caregiver variables reached consensus for exclusion. 28 athlete/player and four parent/caregiver variables reached consensus for the Child SCAT, whereas two parent/caregiver variables reached consensus for exclusion. Key categories of variables included the following: concussion/sport details, personal medical conditions and family medical history.ConclusionThis study provides a list of athlete/player and parent/caregiver demographic variables that should be considered in future revisions of the SCAT/Child SCAT. By considering (and ultimately likely including) a wider and standard set of additional demographic variables, the Concussion in Sport experts will be able to provide clinicians and researchers with data that may enhance interpretation of the individual’s data and the building of larger datasets.

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Developing a strategic research framework for Sport and Exercise Medicine

Abstract: The strategic framework provides guidelines for the development and sustainable management of an SEM research programme. It will make a substantial contribution to the research, further development, and ultimately the status of SEM in South Africa.

Cited by 4 publications

References 13 publications

Cardiorespiratory Coordination after Training and Detraining. A Principal Component Analysis Approach

Cardiorespiratory Coordination after Training and Detraining. A Principal Component Analysis Approach

Complex Systems in Sport, International Congress: Linking Theory and Practice

Developing common demographic data elements to include in future editions of the SCAT and Child SCAT: a modified international Delphi study

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