Athanassios Bissas

Athanassios Bissas
University of Gloucestershire · School of Sport & Exercise

Doctor of Philosophy

About

151
Publications
51,796
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
782
Citations

Publications

Publications (151)
Article
Full-text available
Training for both sporting and military performance is common practice within army trainee populations, although it is currently unknown what effect this combination of training methods may have on the physical attributes required for overall physical preparedness. This study examined the effects of sport-specific training on general fitness in a p...
Article
Full-text available
The aim of this study was to explore the sprint mechanical and kinematic characteristics of sub-elite and recreational male sprinters during the acceleration phase of a linear sprint running section. Eighteen sprinters (nine sub-elite, nine recreational) performed two all-out 30-m sprints. Three high speed panning cameras were used to record the en...
Article
Full-text available
Hip-shoulder separation (H-S sep ) has been widely researched in many sporting activities (e.g., golf) to provide information on the contribution of torso rotation to performance and injury. Although it is necessary for high jumpers to generate significant long-axis rotation to successfully clear the bar, limited information exists on H-S sep for h...
Article
Full-text available
The 800 m race challenges the aerobic and anaerobic energy systems, and athletes adopt a technique that allows for running efficiency as well as sprinting speeds. The aim of this novel study was to compare important kinematic variables between the two laps of the 2017 IAAF World Championships women's final. Video data (150 Hz) were collected of all...
Article
Full-text available
The pole vault is a highly technical event where the athletes must successfully convert horizontal velocity during the run-up to vertical velocity at takeoff. The aim of this study was to compare the kinematics of men's and women's world-class pole vaulting. Video data were collected of the best clearances by 14 men and 11 women at the 2018 IAAF Wo...
Article
Full-text available
Cyclists are known to change their cycling position to reduce aerodynamic drag. Research has shown that this compromises their physical capacity to perform, but there is considerable inter-individual variability present. Proposed training specificity effects by cycling position do not explain all of the observations in the literature, so a search f...
Article
Full-text available
This study aimed to compare joint kinematics and center of mass parameters throughout hurdle clearance between world-class men and women sprint hurdlers, who were competing in a World Championships final. This was the first study to present time-series kinematic data around hurdle clearance, and given the technical ability of the athletes analyzed,...
Article
Full-text available
We evaluated sprint mechanical asymmetry in world‐class competitors and evaluate whether inter‐limb sex‐based differences in sprinting mechanics exist. The eight finalists in the men’s and women’s 100 m events at the 2017 IAAF World Championships were studied. Five high‐speed cameras (150 Hz) were used to capture two consecutive steps of the whole...
Article
Full-text available
Measurements of muscle-tendon unit passive mechanical properties are often used to illustrate acute and chronic responses to a training stimulus. The purpose of this study was to quantify the inter-session repeatability of triceps surae passive stiffness measurements in athletic and non-athletic populations, with the view to discussing its usefulne...
Article
Full-text available
The sprint hurdle events require athletes to cross ten hurdles between the start and finish line. The height of the hurdles, and the distances between them, differ for men and women, possibly resulting in technical differences. The aim of this study was to provide a kinematic comparison of in-competition hurdle technique for world-class men and wom...
Article
Key areas of sports science research investigate the functional role of muscle activations within human movement. Even within relatively constrained movements like cycling, significant variability is observed in muscle activation strategies. Particular attention has been given to particular muscles, despite Soleus and Tibialis anterior muscles pres...
Article
The aim was to investigate the kinematic factors associated with successful performance in the initial acceleration phase of a sprint in the best male athletes in the World at the 2018 World Indoor Athletics Championships. High speed video (150 Hz) was captured for eight sprinters in the men’s 60 m final. Spatio-temporal and joint kinematic variabl...
Article
Whole body digitizing used to calculate whole body center of mass (CM) variables from competitions is particularly time-consuming, and “shortcut” methods that substitute for it could expediate the calculation of spatiotemporal variables. The aim of this study was to measure the appropriateness of using the head as a proxy for the CM when calculatin...
Article
Full-text available
Video analysis research into the rugby league tackle typically uses technical criteria from coaching cues or tackle variables from rugby union. As such, the content validity and relevance could be questioned. A video analysis framework which establishes appropriate variables for rugby league is therefore required. The aim of this study was to adopt...
Article
Midfoot- (MFS) and forefoot-striking (FFS) runners usually switch to rearfoot-striking (RFS) during marathons. However, world-class runners might resist modifications during shorter races. The purpose of this study was to analyse footstrike patterns, ground contact times and running speeds in a World Championship men’s 10,000 m final. Footstrike pa...
Article
Introduction This was a feasibility pilot study aiming to develop and validate an activity recognition system based on a custom-made body-fixed sensor and driven by an algorithm for recognizing basic kinetic movements in military personnel. The findings of this study are deemed essential in informing our development process and contributing to our...
Conference Paper
Introduction: Measurements of passive stiffness (PS) are often used to quantify the passive resistance of a muscle-tendon unit (MTU) to stretching, which is interesting in populations who undergo chronic loading and/or excessive stretching through exercise (Moltubakk et al., 2018). This metric may also be used to monitor the ‘neuromuscular conditi...
Article
Full-text available
World-class marathon runners make initial contact with the rearfoot, midfoot or forefoot. This novel study analyzed kinematic similarities and differences between rearfoot and non-rearfoot strikers within the men's and women's 2017 IAAF World Championship marathons across the last two laps. Twenty-eight men and 28 women, equally divided by footstri...
Article
Full-text available
We mapped structural and functional characteristics of muscle‐tendon units in a population exposed to very long‐term routine overloading. Twenty‐eight military academy cadets (age: 21.00 ± 1.1 yrs; height: 176.1 ± 4.8 cm; mass: 73.8 ± 7.0 kg) exposed for over 24 months to repetitive overloading were profiled via ultrasonography with a senior subgro...
Article
The development of performance adaptations resulting from an uphill-downhill training program and monitoring of the decline of adaptations during detraining.
Article
Development and maintenance of sprint training adaptations: an uphill-downhill study. J Strength Cond Res 36(1): 90–98, 2022-We examined the development of performance adaptations resulting from an uphill-downhill training program and monitored the decline of adaptations during detraining. Twenty-eight men were randomly assigned to 1 of 2 sprint tr...
Article
Isokinetic strength assessments are common outcome measures following operatively treated Achilles tendon (AT) ruptures. However, there is a lack of clarity on whether commonly reported outcome measures (such as peak joint moment) are sufficient to describe the extent of long-term functional deficits following AT rupture and repair. The present stu...
Article
The aim of this novel study was to analyse key kinematic variables during the water jump clearance amongst world-class 3,000 m steeplechasers. Thirteen men and 13 women were recorded as they negotiated the last water jump in the 2017 IAAF World Championship finals. Video footage (100 Hz) was recorded using three high-definition camcorders to derive...
Article
Objectives: Achilles tendon rupture leads to functional impairments and these may be underpinned by morphological changes in the muscle-tendon unit. Functional performance of the injured limb will be impaired regardless of time since surgery and these impairments occur alongside changes in muscle-tendon morphology. Methods: Following operative trea...
Article
Full-text available
The effect of the inclusion of a high hurdle 13.72 m after the start line on elite sprint start and initial acceleration technique has yet to be investigated or understood. This highly novel study addresses that lack of information in an exceptional manner, through detailed biomechanical analysis of the world's best sprint and hurdle athletes, with...
Article
Full-text available
IAAF Rule 230.2 states that racewalkers must have no visible (to the human eye) loss of contact with the ground and that their advancing leg must be straightened from first contact with the ground until the "vertical upright position." The aims of this study were first to analyze racewalking judges' accuracy in assessing technique and, second, to m...
Article
Full-text available
The aim of this study was to analyze footstrike patterns in elite marathon runners at the 2017 IAAF World Championships. Seventy-one men and 78 women were analyzed in their respective races. Athletes’ footstrike patterns were recorded (120 Hz) at approximately 8.5, 19, 29.5 and 40 km (“Laps 1 – 4”) and categorized as either rearfoot (RFS), midfoot...
Article
As the effect of performance level on sprinting mechanics has not been fully studied, we examined mechanical differences at maximal running speed (MRS) over a straight-line 35 m sprint amongst sprinters of different performance levels. Fifty male track and field sprinters, divided in Slow, Medium and Fast groups (MRS: 7.67 ± 0.27 m∙s⁻¹, 8.44 ± 0.22...
Article
Dinsdale, AJ and Bissas, A. Eliciting Postactivation Potentiation With Hang Cleans depends on the recovery duration and the individual's 1 repetition maximum strength. J Strength Cond Res XX(X): 000-000, 2019-Acutely coupling biomechanically similar resistance exercises (e.g., back squats) with subsequent explosive movements (e.g., countermovement...
Article
Full-text available
Introduction There is need of a better understanding of body composition profiles in multi-national Navy personnel and their relationship with health and fitness. The aim of this review was to produce a critical assessment of original research addressing body composition in this military branch. Methods Electronic databases PubMed and SPORTDiscus...
Research
Full-text available
This report provides a detailed analysis of the men's pole vault final, including key parameters during the run up and take-off. Data on the pole angle, horizontal velocity at pole plant and take-off, and last three step lengths are included. The full report is available from the IAAF website: https://www.iaaf.org/about-iaaf/documents/research
Research
Full-text available
This report provides a detailed analysis of the women's pole vault final, including key parameters during the run up and take-off. Data on the pole angle, horizontal velocity at pole plant and take-off, and last three step lengths are included. The full report is available from the IAAF website: https://www.iaaf.org/about-iaaf/documents/research
Research
Full-text available
This report provides a biomechanical analysis of the best performances of all men's long jump finalists of the three steps before take-off, with a more in-depth examination of the last step and the landing. This is a useful tool for those interested in the mechanics of the long jump. The full report is available from the IAAF website: https://www.i...
Research
Full-text available
This report provides a biomechanical analysis of the best performances of all women's long jump finalists of the three steps before take-off, with a more in-depth examination of the last step and the landing. This is a useful tool for those interested in the mechanics of the long jump. The full report is available from the IAAF website: https://www...
Research
Full-text available
This report provides an analysis of all women's finalists’ best jumps and comprised a biomechanical analysis of the last two steps before the take-off board along with the hop, step and jump sections also being presented. Finally, an analysis of the landing is also presented. This is a useful analysis for those interested in triple jump performance...
Research
Full-text available
This report provides an analysis of all men's finalists’ best jumps and comprised a biomechanical analysis of the last step before the take-off board along with the hop, step and jump sections also being presented. Finally, an analysis of the landing is also presented. This is a useful analysis for those interested in triple jump performance. The f...
Technical Report
Full-text available
This report provides a detailed analysis of the men's event, including key parameters during the approach, take-off and bar clearance. The report provides new information on shoulder-hip separation angles during the take-off phase which is indicative of torso rotation during take-off. The report can be downloaded at the following link: https://www....
Research
Full-text available
This report provides a detailed analysis of the men's 60 m sprint final, including key parameters of block exit and the early stages of the race. Data on joint kinematics in the set position and at block exit are included, along with key variables from the first three steps of the race. The full report is available from the IAAF website: https://ww...
Research
Full-text available
This report provides a detailed analysis of the women's 60 m hurdles final, including key parameters of block exit and the early stages of the race. Data on joint kinematics in the set position and at block exit are included, along with key variables from the first three steps of the race. Hurdle split times are also provided. The full report is av...
Research
Full-text available
This report provides a detailed analysis of the women's 60 m sprint final, including key parameters of block exit and the early stages of the race. Data on joint kinematics in the set position and at block exit are included, along with key variables from the first three steps of the race. The full report is available from the IAAF website: https://...
Research
Full-text available
This report provides a detailed analysis of the men's 60 m hurdles final, including key parameters of block exit and the early stages of the race. Data on joint kinematics in the set position and at block exit are included, along with key variables from the first three steps of the race. Hurdle split times also provided. The full report is availabl...
Research
Full-text available
This report provides an analysis of all the finalists' best throw and comprised a 3-dimensional biomechanical analysis of the path and velocity of the implement throughout the throw and the release paramters. Key kinematic variables of the throwing technique are also presented. This is a useful analysis for those interested in shot put performance....
Research
Full-text available
This report provides an analysis of all the finalists' best throw and comprised a 3-dimensional biomechanical analysis of the path and velocity of the implement throughout the throw and the release paramters. Key kinematic variables of the throwing technique are also presented. This is a useful analysis for those interested in shot put performance....
Presentation
Full-text available
This presentation was given at the 8th European Pole Vault and High Jump Symposium held at the German Sport University in Cologne, Germany (9th-11th November 2018).
Research
Full-text available
This report provides a biomechanical analysis of the best performances of all men's long jump finalists of the three steps before take-off, with a more in-depth examination of the last step. This is a useful tool for those interested in the approach to to the take-off board. The full report is available from the IAAF website: https://www.iaaf.org/a...
Research
Full-text available
This report provides an analysis of all finalists’ best jumps and comprised a biomechanical analysis of the two steps before the take-off board along with the hop, step and jump sections also being presented. Finally, an analysis of the landing is also presented. This is a useful analysis for those interested in triple jump performance. The full re...
Research
Full-text available
This report provides an analysis of all finalists’ best jumps and comprised a biomechanical analysis of the two steps before the take-off board along with the hop, step and jump sections also being presented. Finally, an analysis of the landing is also presented. This is a useful analysis for those interested in triple jump performance. The full re...
Research
Full-text available
This report provides a biomechanical analysis of the best performances of all women's long jump finalists of the three steps before take-off, with a more in-depth examination of the last step. This is a useful tool for those interested in the approach to to the take-off board. The full report is available from the IAAF website: https://www.iaaf.org...
Research
Full-text available
This biomechanical report focusses on the kinematics of the top eight finishers in the men's marathon. The full report can be downloaded via the IAAF website at: https://www.iaaf.org/about-iaaf/documents/research
Research
Full-text available
This report includes measurements of key kinematic variables in women's marathon running, including step length, step rate and joint angles of the lower and upper limbs. The report is available for download from: https://www.iaaf.org/about-iaaf/documents/research
Research
Full-text available
This biomechanical and time analysis report highlights the key kinematic and pacing data from the men's 10,000 m final. The full report is available from the IAAF website: https://www.iaaf.org/about-iaaf/documents/research