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Palmaris longus muscle contribution to maximum torque and steadiness in highly skilled grip and non-grip sport populations

Journal articleSports science
Konstantinos Salonikidis, Aikaterini Mantziou, Konstantinos Papageorgiou, Fotini Arabatzi
Salonikidis, K., Mantziou, A., Papageorgiou, K., Arabatzi, F. (2021). Palmaris longus muscle contribution to maximum torque and steadiness in highly skilled grip and non-grip sport populations Journal of Applied Sports Sciences, Vol.1, pp. 67-79. DOI: 10.37393/JASS.2021.01.6
Publication year: 2021

Background: The anatomy, origin, function, and appearance of the Palmaris Longus Muscle (PLM) in different populations are well studied. However, little is known about its contribution to wrist fl exion movements in sports. This study investigates whether the existence or absence of the PLM affects maximal torque output or torque consistency of submaximal wrist fl exion moment.
Methods: One hundred ninety-seven well-trained sports students were clinically examined to ascertain the presence of the PLM. Forty of them from different sport disciplines were assigned to two groups (athletes in handgrip sports: HG, athletes in non-handgrip sports: NHG). Their 80 upper limbs were divided based on the PLM-presence/absence and hand-dominance/non-dominance. Maximal Isometric Torque (MIT) at 150º, 180º, and 210º wrist angle, and torque steadiness at 150º and 180º, at 25%, 50%, and 75% of MIT were measured on a Humac Norm dynamometer.
Results: In all MIT tests, HGs signifi cantly surpassed NHGs, independently of the dominant or non-dominant side in presence of the PLM (p <.05). Steadiness was signifi cantly higher in HGs than in NHGs in dominant hands having the PLM, at 25% and 75% of MIT at both angles (p <.05).
Conclusions: It is concluded that the existence of the PLM provides an advantage in sustained handgrip sports (throwers, racquet sports, basketball, handball players), contributing positively to decreased torque variability and
higher maximal torque independently of muscular length. Important implications for sports performance and injury prevention have also resulted.

Force Steadiness during Submaximal Isometric Plantar and Dorsiflexion in Resistance Training: Experienced vs Non-experienced Individuals

Journal articleSports science
Konstantinos G. Papageorgiou, Salonikidis Konstantinos, Meliadis Anastasios, Arabatzi Fotini
Salonikidis, K. et al. (2021) ‘Force Steadiness during Submaximal Isometric Plantar and Dorsiflexion in Resistance Training: Experienced vs Non-experienced Individuals’, Central European Journal of Sport Sciences and Medicine, 34(2), pp. 5–13. doi: 10.18276/CEJ.2021.2-01.
Publication year: 2021

The purpose of this study was to determine differences in force steadiness during submaximal plantar flexion (PF) and dorsiflexion (DF) of the dominant leg between individuals experienced and not experienced in resistance training. Forty males aged 18-32 were divided in two groups based on their experience in resistance training (experienced – not experienced). Evaluation of maximal voluntary isometric force was carried out on a Humac-Norm isokinetic dynamometer. The measurement of the maximal voluntary contraction (MVC) was measured in 3 isometric attempts. Then, the stability measurement of 10%, 30%, 50% and 70% of the MVC was assessed. The duration of the isometric contraction was 10 seconds but only 6 seconds were analyzed. T-test for independent samples and ANOVA was applied for the statistical analysis. The results showed that the individuals with more experience in resistance training presented a significantly higher MVC and force steadiness of the plantar and dorsiflexors muscles, compared with the individuals with less experience (p < 0.05). In conclusion, the years of practice with resistance training appear to have a beneficial effect on force steadiness.

The Tennis SensoriMotor Synchronisation Paradigm

Journal articleSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2020) ‘The Tennis SensoriMotor Synchronisation Paradigm’, European Journal of Physical Education and Sport, 8(2), pp. 57–67. doi: 10.13187/ejpe.2020.1.57.
Publication year: 2020

The author proposes a new Paradigm for both research and practice regarding tennis. Sensorimotor Synchronisation (SMS) is the scientific field studying how people may synchronise their actions to an external stimulus (a pacer). SMS provides the most relevant set of concepts to tennis because synchronisation with both the ball and the opponent is the most decisive factor for performance: ball directionality, early preparation and economy of movement are all affected by good synchronisation skills but not so much by reaction time. In martial arts schools, synchronisation is the golden chalice of superior performance, which leaves many questions about the choices that have been made in tennis. Here, after a mini-review of SMS-related concepts and terms, an SMS application to tennis will be proposed and some drills will be described for the first time. Not all questions will or can be answered here, however a new Research Programme should be emerging: as is the case in all Programmes and Paradigms, they cannot be directly tested but they offer the background for specific experiments to follow. Tennis SMS is also compatible with bioinformatics since expert systems may be developed to both monitor and improve synchronicity.

Online Coach Development Components: the Tennis Distal Method Coach Development

Journal articleSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2020) ‘Online Coach Development Components: the Tennis Distal Method Coach Development’, Pedagogy, 92(7s), pp. 17–28.
Publication year: 2020

Taking for granted the new standards in sports in regard to the recent, still-evolving pandemic, Coach Development is seen through a new prism, based on the experience gained from an online tennis Coach Development course. At First, the role of the coach is discussed as an expert generalist and then the ideal components of Coach Development systems are presented. Finally, it is discussed whether these findings may be applied to online learning.

Online coach development and certification programs in sports: are they possible?

Journal articleSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2020). Online coach development and certification programs in sports: are they possible? Central European Journal of Sport Sciences and Medicine, 29(4).
Publication year: 2020

Anticipating the inevitable shift of coach education and Coach Certification Programs (CCP) to distance-learning platforms in the imminent future, I have attempted to identify obstacles that we are likely to face. After explaining the rationale and the potential benefits of such courses, I have identified
technique as the most difficult component to both teach and evaluate. A specific viewpoint regarding technique is briefly discussed and several related guidelines are provided to assist in both teaching (coach education) and evaluating technique (CCP) within the context of distance education.

EML cover

On Sports Biomechanics Methodology

Journal articlePhilosophy (Epistemology/Ethics)Sports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2020), Epistēmēs Metron Logos, (4), pp. 50-61. doi: 10.12681/eml.24289.
Publication year: 2020

Sports biomechanics is one of the most fascinating and formalised disciplines in sports science. While it uses a host of methods, on closer look, it lacks a thorough epistemological / methodological foundation besides what it implicitly borrows from the sciences it uses, such as mathematics and physics. Here, I shall attempt to portray what such a basic epistemological understanding would include and also try to address issues directly related to such an approach. I shall start by describing the most general context in which sports biomechanics exist and then, I will attempt to provide a structural context to bridge the gap between sports biomechanics and practice. Concluding with some ideas about the future of biomechanics.

Exploiting the Cognitive-Physical-Emotional interconnection: Motowords and the Distal Method

Journal articleSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2020), Journal of Applied Sports Sciences., issue 1 (2020)
Publication year: 2020

Background: communication between the trainer and the athlete has been studied in terms of feedback, but not in terms of codifying information for instruction; here implications for cognition and cognitive skills is also discussed.

Purpose: to present a new tool, motowords, a verbal codification tool between the athlete and the trainer that also provides many side benefits: it helps adjust the Degrees of Freedom of a drill, it employs cognitive functions, it fosters active participation of the athlete and it bridges the gap between serial and random practice. Moreover, we intend to theorize on how the positive effects of motowords are multiplied when combined with drill-synthesis and drill-structure, as well as with differentiated (self)training, concepts that aim at increasing the ecological validity of training sessions.

Method: the theoretical background supporting the effectiveness of these tools is discussed.

Leads: to a broader vision about the important role of cognitive and emotional skills within a holistic context aiming at developing “literate” individuals rather than just motor experts, which, both the former and the latter, are at the very core of the Distal Method for expertise attainment.

JPES

The distal method: From psychomotor education to motor expertise

Journal articleSelected publicationsSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2019), Journal of Physical Education and Sport, 19(1). doi: 10.7752/jpes.2019.01092.
Publication year: 2019

A unifying theoretical model for motor expertise attainment is presented. Based on an extensive theoretical background several practical applications are discussed examples are given and guidelines are proposed. The main tenets of this approach called “The Distal Method” is that motor expertise development should be based on i. processes that impact the future and not (necessarily) the present ii. motor skills and cognitive skills are coupled iii. emotions are the substrate for any development to take place. The basic tools of such an approach will be presented here which could act both as a guide and a model – or even a paradigm – for successfully developing and refining psychomotor skills from early on.

Theatre pedagogy and the Distal Method in psycho-social development (Greek)

Journal articleSports science
Konstantinos G. Papageorgiou, Simos Papadopoulos
Konstantinos G. Papageorgiou and Simos Papadopoulos (2018), Applied Pedagogy, (9), pp. 1–19.
Publication year: 2018

The triple identity of the empowering action coordinator (a poor translation usually used is “animator”) includes the roles of the scientist, of the artist but also of the healer – the mediator to higher consciousness levels. The paper goes on to locate theatre pedagogy within the paradigm of the Distal Method; actually quite a widespread one, since theatre pedagogy may be used for many purposes, either in isolation or in combination: as a psychotherapeutic tool, as a learning tool, as a social and emotional developmental tool, as the context of training (style), or as just fun.

Physiological Changes after One Month of Exclusive Supplement Consumption and Exercise: A Case Study

Journal articleSports science
Konstantinos G. Papageorgiou, Konstantinos G. Salonikidis
Konstantinos G. Papageorgiou and Konstantinos G. Salonikidis (2018), Journal of Sports Science, 6(3), pp. 170–177. doi: 10.17265/2332-7839/2018.03.006.
Publication year: 2018
ABSTRACT
An extreme protocol including one month of intense exercise (HIIT: High Intensity Interval Training) and exclusive supplement consumption, i.e. no food, was undertaken by one participant, in order to understand the effects of one month of exercise without eating any food. The purpose was to acquire some initial data for future studies so that better exercise programs may be designed for both time-restricting athletic programs, and individuals who wish to combine fast fat-reduction and the improvement of their physical form. There was a parallel methodological goal to examine changes synthetically and not analytically, that is, to compensate for a gap in literature in regard to the absence of synthetic models. Changes in the participant (male, 34 y.o.,72 kg, BMI: 22.9) included a 21.20% relative reduction in body fat (3.9% in absolute values), a 2.6% reduction in body weight coupled with a 1.8% increase in fat-less mass, a 10% increase in maximum leg extension and a 6% increase in maximum chest press. Blood creatinine (+56%) and blood urea (+35%), as well as SGOT (serum glutamic oxaloacetic transaminase) (+45%), SGPT (Serum Glutamic Pyruvic Transaminase) (+75%) and Lymphocytes (+45%) were markedly increased. HIIT and exclusive supplement consumption, intermittent fasting and hypocaloric diet for one month drastically affected the individual in this case study by drastically improving his physical form, at the cost of worsening important biochemical markers.

From Therapy and Enhancement to Learning and Performance

BookSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2018). Athens: Lexitypon.
Publication year: 2018

Therapy, learning, enhancement, performance: four words that reveal the broad scope of this book; four words that are not just four separate subjects; revealing their interconnections is the main focus of this book. Subjects, ranging from C. Jung’s psychoanalysis to K.A. Ericsson’s Deliberate Practice, or from R.G. Hamer’s “New Medicine” to the author’s Distal Method, all these give a deeper meaning to the book’s title – a fresh outlook on these overused words.

The Subtle Colourings of (informed) Consent in Sports Doping

Conference paperPhilosophy (Epistemology/Ethics)Sports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2017), in 12th World Conference Bioethics, Medical Ethics and Health Law. Limassol, Cyprus.
Publication year: 2017

It discusses in what way do athletes consent in using doping; can it just be a matter of black and white, consenting or not consenting? I argue that it is a more complex process and I suggest a method for exploring consent types.

After presenting a multipole of consent-cases, I argued that it is not just a matter of black or white as far as consent is concerned for the doped athlete. The athlete, any athlete, may come from the most diverse environments being forced to succeed at any cost; forced by whom? By their peers, their trainers, their broader environment. For the athlete, it may be a matter of life and death (as it was for e.g. USSR athletes, or as it partly is now for athletes who have spent a fortune in training academies only to try to make amends with their future success).

The very knowledge background of an athlete, or of their team, also plays a crucial role in their decisions. Issues of trust, ignorance, too much goodwill, wishful thinking, even habit, all come into play. Hence, we need a consent system that accounts for all these cases – and even more. How do we produce such a system? Should we create a catalogue of real cases and then try to find an adequate form of consent?

In contrast to usual scientific practices, this is both sub-optimal and contramethodological. Taking as our starting point the analytic method, we are able to create, a priori, all cases of consent; only after do we apply them (link them) to reality. Therefore, we get cases such as “uninformed consent”, “not uninformed consent”, “intentional uninformed consent”, but also “unintentional exposure”, “not unintentional protection” and hundreds of other consent-related propositions. The next step would be to attribute meaning to as many cases as possible and only then are we allowed to go to the world and discuss the athlete’s behavior in terms of consent.

The Subtle Colourings of (Informed) Consent in Performance Enhancement: Implications for Expertise

Journal articlePhilosophy (Epistemology/Ethics)Sports science
Konstantinos G. Papageorgiou
Konstantinos G. Papageorgiou (2017), Philosophy Study, 7(4), pp. 197–203. doi: 10.17265/2159-5313/2017.04.004.
Publication year: 2017

The analytic method, part of the epistemonic method, provides us with a way to cope with perplexed cases, without even referring to the world out there. We are able to predict all possible variations of consent, and go on forming minimum logical quadripoles, 8-poles, 16-poles, etc., before even trying to make any connection to the world. This way, there are two major outcomes: All possible scenarios are predicted, and, because of that, our “logical generator” produces scenarios we couldn’t even think of. Consent is, therefore, neither binary (existence or absence), nor just a continuum from existence to absence, but a cladistic tree stemming from the basic quadripole “existence of consent/not existence of consent/absence of consent/not absence of consent.” The complexity increases rapidly when other terms are included; try: “existence of informed consent” or “existence of unintentional consent.” More levels develop as we examine relevant terms, such as “exposure,” “protection,” or “consumption.” In our case-study, we shall examine how different aspects of consent are expressed regarding the issue of performance enhancement and consider some implications for the notion of expertise within an SEA (Science of Exceptional Achievement) context. Many different terms may describe the most common situations, namely, “uniformed consent,” “unintentional consent,” “non-intentional consent,” “not absence of consent,” and also, “unintentional exposure,” “intentional non-protection,” and so on. In Greek language, the possible variations are even more (there are two kinds of negation in Greek). All the aforementioned terms have different ethical consequences. We shall also examine whether doping is an inherent part of expertise attainment.

The Distal Method

BookSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2017).
Publication year: 2017

Distal Method is the product of years of research in the domain of motor and cognitive learning and performance. It is a method for attaining world-class expert performance in any domain that uses motor skills: surprisingly, not only in sports, music and art (as if they were not enough!), but also in many cognitive domains that rely on procedural memory or, more generally, may benefit from the tight motor-cognitive relationship. Based on this specific work at hand, the author has already published numerous journal articles and books.

ISBN: 978-960-93-9225-9

Tennis: the Distal Method -- Applied Principles of Technical, Motor and Physical High-Performance Attainment (Greek)

BookSports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2017). Athens: Kondyli.
Publication year: 2017

The basic textbook of the application of the Distal Method to tennis

Performance Spiral effects on Motor Learning: the case of tennis serve

Journal articleSports science
Konstantinos G. Papageorgiou
Konstantinos G. Papageorgiou (2016), Hellenic Journal of Physical Education and Sport Sciences, 36(2), pp. 197–214.
Publication year: 2016

Performance-learning distinction necessitates the development of novel models to measure
performance meaningfully, i.e. in direct relation to the “invisible” learning. Such models should
have direct practical implications. Performance Spiral (PS) is such a model and incorporates
findings from motor learning &amp; control disciplines (Contextual Interference, practice schedules,
dynamic system theory), Sports Training (speed-assisted / resisted training) and insights (Slow
Practice) from traditional major schools in music and sports. 11 subjects (age M=31, intermediate
level) in two groups, one control (6) and one PS-trained (5) were measured in speed and accuracy
progression of tennis serve, which would denote motor learning. After two months, while the
classically-trained control group did not show any statistically significant change in performance,
the PS-trained group increased their accuracy significantly. PS model is effective in producing
motor learning in tennis serve. These preliminary results are discussed and future directions are
given.

An Analysis of the Kinetic Chain Model In Forehand Drive

Journal articleSports science
Konstantinos G. Papageorgiou
Konstantinos G. Papageorgiou (2016), Medicine & Science in Tennis, 21(2), pp. 22–26.
Publication year: 2016

This article in JMST lays the foundations of the biomechanical model of the tennis Distal Method, as well as an application in the forehand drive (since applications are always important for such practice-oriented journals). The concepts presented in this article are relevant to the technique of all tennis shots.

Talent as an unintentional agent

Journal articlePhilosophy (Epistemology/Ethics)Sports science
Konstantinos G. Papageorgiou
Papageorgiou, K. G. (2015), 1(2), pp. 38–54.
Publication year: 2015

Unintentional exposure is a novel concept. No single person has coined the term. It mainly refers to
substances and activities affecting individuals without their consent – be it informed or not. In the
broader field of applied ethics in general, and of bioethics in particular, the scope of application
extends from nutrition (GM, functional food), to pollution (chemical-, air-, light-, noise-, radioactive
contamination etc.), climate change, embryo rights, drug side-effects (especially in regard to
chemotherapy), radiation (e.g. food), Permissible Exposure Limits, education and (bio-)terrorism. In
the discussion about talent and giftedness, there are two main approaches or schools of thought. On
one hand, talent is conceived as an exclusive agent, in that some individuals are born more capable
than others. On the other hand, a different school of thought advocates the modification of body and
mind of all individuals in order for them to achieve similar levels of high performance. In the first
case, individuals are bound to their nature, while in the latter instance they are prisoners of their
environment –two equivalent positions in terms of autonomy and freedom. The latter will be argued to
be the case; as a result, a connection with unintentional exposure will be established.

Deliberate Practice in Tennis

Journal articleSports science
Konstantinos G. Papageorgiou
Konstantinos G. Papageorgiou (2014), Journal of Medicine and Science in Tennis, 19(3), pp. 113–119.
Publication year: 2014

Is there a way of practice that is beneficial to tennis? Indeed, there is: Deliberate and well-structured practice. This article attempts to describe the model of Deliberate Practice (DP) and its potential applications to tennis