In order to study the high-strength sports injury in sports, this paper proposes a method based on NMR to identify the high-strength sports injury of sports athletes. This method carries out a questionnaire survey and research on the athletes who are excellent in sports dance major from 2019 to 2021 in the Institute of Physical Education. The athletes' age range is 18-25 years, and the training period of sports dance is 3-5 years. The results show that compared with other recognition methods, the recognition method based on NMR has higher accuracy and efficiency. The method of this study is helpful to improve the recognition efficiency and accuracy. Athletes are very easy to get injured during sports. In order to reduce the degree of injury of athletes, we should strictly follow the action standards in the training process to avoid serious injury.
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http://dx.doi.org/10.1155/2022/1016628 | DOI Listing |
Gels
January 2025
Engineering Research Center of Oil and Gas Field Chemistry, Universities of Shaanxi Provence, Xi'an Shiyou University, Xi'an 710065, China.
This study focuses on addressing the limitations of fluid loss additive in cement slurry under higher temperatures. The synthesis process of glutaraldehyde-crosslinked polyvinyl alcohol (PVA) was optimized to develop an efficient fluid loss additive for oil well cement slurries. Using one-factor experiments and the uniform design method, the optimal synthesis parameters were established: a reaction temperature of 50 °C; an acid concentration of 1 mol/L; a PVA mass concentration of 8%; a molar ratio of glutaraldehyde to PVA hydroxyl group of 1.
View Article and Find Full Text PDFInt J Sports Physiol Perform
February 2025
Sport Biomechanics Center, Institute of Artificial Intelligence in Sports, Capital University of Physical Education and Sports, Beijing, China.
Purpose: Previous research has primarily focused on bounce drop jump (BDJ) rather than countermovement drop jump (CDJ) in studying optimal drop heights for drop jump. This study explored the biomechanic parameters of both BDJ and CDJ and their relationship with performance across varying drop heights based on the percentage of squat-jump height (SJH).
Methods: Twenty-four college basketball athletes were recruited and divided into low- and high-strength groups.
J Orthop Surg Res
January 2025
Department of Orthopedics, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou Hubei, 434020, China.
Background: Although non-surgical and surgical approaches have been developed to repair acute closed Achilles tendon ruptures, the medical community still lacks a definitive consensus on which approach is superior. This study describes a new minimally invasive internal splinting technique combined with knotless anchors for the treatment of 22 patients with acute closed Achilles tendon rupture.
Methods: A retrospective study was conducted involving 22 patients with acute closed Achilles tendon rupture who were treated with a minimally invasive internal splinting technique at Jingzhou Hospital of Yangtze University between January 2022 to October 2023.
Materials (Basel)
January 2025
Department of Metals and Corrosion Engineering, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, Praha 6-Dejvice, 166 28 Prague, Czech Republic.
Maraging steel is a high-performance material valued for its exceptional properties, making it ideal for demanding applications such as aerospace, tooling, and automotive industries, where high strength, toughness, and precision are required. These steels can be prepared by powder metallurgy techniques, which offer new processing possibilities. This paper introduces novel thermal powder pre-treatment and its impact on the final mechanical properties.
View Article and Find Full Text PDFJ Sports Med Phys Fitness
January 2025
Department of Movement, Human and Health Sciences, Foro Italico University of Rome, Rome, Italy.
Background: Anxiety commonly affects older individuals with negative consequences on various physical and motor performances such as balance. When coupled with age-related muscular strength loss, the effects on the ability to perform daily tasks could be particularly detrimental, particularly in older women who are more susceptible to anxiety, muscular strength losses and falls. The study aimed to verify the effects of anxiety on balance performance in relation to muscular strength level in healthy older women.
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