EC Orthopaedics

In previous issues of this magazine, we have considered the mechanics of jumps. Using abstraction, we tried to get away from the pedagogical clichés of jumping training. To do this, we studied human hopping locomotion through the prism of orthopedics, rejecting the conformity of coaching concepts [1-6].

We have shown that training the speed of muscle contraction [10] is a mistake, because the muscles, due to the high density of the cytoplasm, as well as the spherical structure of actin and myosin filaments [9], are not adapted to a fast, overcoming contraction [1]. For fast running and jumping, evolution and the creator endowed a person with a completely different motor mechanism based on the deformation and return work of elastic elements. This principle of obtaining kinetic energy is at least twice as effective as the muscular-contractile mechanism [1,4].

Different mechanics also determine completely different methodological directions for training athletes, where the main factors are the characteristics of a single structure of the elastic interaction of an athlete-jumper for a post-deforming response. In this case, the acceptance factor is the most important. We considered the acceptance factor in sufficient detail in the November issue (2022) of the journal EC Orthopaedics [6].

However, another link was revealed where energy loss is possible, which we designated by the term "pelvic bridge".

To study this link in the human musculoskeletal system, we conducted a study, the objectives of which were:

1. Analyze the significance of the rigidity of the pelvic bridge.
2. Conduct a pedagogical experiment to identify the effectiveness of a new direction in the training of jumpers and sprinters.

Keywords: Ricocheting Rebound; Acceptance; Unified Structure of Elastic Interaction; "Pelvic Bridge"

1. Alexander Egorov. “The Aberration of the Muscular-Contractile Gestalt Paradigm of the High Jump with a Run is the Reason for Limiting the Physical Capabilities of a Person in Jumping Locomotions”. EC Orthopaedics 11 (2021).
2. Alexander Egorov. “A Different Reality of the Sprint. The Source of Power that Propels the Athlete While Running at Maximum Speed”. EC Orthopaedics 1 (2022).
3. Alexander Egorov. “A Jump from a Past Era Reveals the Secret of Ancient Greek Athletes and Confirms the Concept of the Deformation Mechanics of Jumping Locomotion”. EC Orthopaedics 8 (2022): 31-38.
4. Alexander Egorov. “Statokinetic Reflexes - The Summation of Irritation and the Escalator Springboard, Determine the Revision of the Existing System of Training High Jumpers”. EC Orthopaedics 3 (2023).
5. AT Egorov. “Identification of Aberration in the Training of Jumpers and Sprinters Using the Scientific Knowledge of Orthopedics. Correction of the Proportion of Training Means of a Plyometric Nature in the Total Volume of Strength Exercises of Athletes, to Support the Functional Properties of Muscle Tissue”. EC Orthopaedics 5 (2023): 30-37.
6. Egorov Alexander. “Acceptance (Utilization) of a Motor Impulse by the Human Body as a Factor in Increasing the Efficiency of Running and Jumping”. EC Orthopaedics 11 (2022): 10-19.
7. Peter-Weyand.
8. Peter Weyand "Man: born to run?" (2018).
9. Solodkov AS and Sologub EB. “Human physiology. General. Sports. Age: textbook”. Sport (2016): 624.
10. Zatsiorsky VMAS and Aruin VN. “Biomechanics of the human motor apparatus Seluyanov”. Physical Culture and Sport (1981): 143.