Biomechanics of Pulmonary Autograft as Living Tissue: A Systematic Review

Nappi, Francesco; Singh, Sanjeet Singh Avtaar

doi:10.3390/bioengineering9090456

Cited by 2 publications

(1 citation statement)

References 114 publications

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“…In this paper, the running posture optimization model is an application based on biomechanics principle and machine learning technology, which can help runners improve their running effect and health level. In actual running, bad running posture may lead to sports injury, fatigue, ine ciency and other problems, and by optimizing running posture, these problems can be reduced and the running effect can be improved [27].…”

Section: Design Of Running Posture Optimization Model Based On Biomec...mentioning

confidence: 99%

Running Posture Optimization in the Process of Track and Field Sports Based on Biomechanical Principle

Yang,

Shi,

Huang

2023

Preprint

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This paper aims to optimize the running posture of college students by using the principle of rod model in biomechanics. Based on this, through experiments and analysis, this paper studies some posture problems existing in college students' running process, and analyzes the influence these problems may have on the speed and stability of college students, and finally puts forward some solutions. In this paper, firstly, through the analysis of college students' motion images in Sports-1M data set, the movement process of college students is grasped, and a biomechanical model of college students' running posture is established. The actual running posture of college students is compared with this model. Then, in the process of comparison, the paper finds some posture defects, such as the backward landing point of footsteps, too great knee flexion and so on, which may lead to extra friction and energy loss for college students and have a great impact on their sports process. Therefore, this paper uses the image data in the data set to detect the movement state of college students, and finds that the running posture of some college students has a significant impact on their running process, so this paper makes a series of adjustments and optimizations to the running process of college students. It includes the adjustment of running posture, such as the adjustment of knee joint and elbow joint, which provides reasonable suggestions for improving the speed and stability of college students to effectively reduce the pressure on college students' knee joint and other related parts. In addition, the paper also tests the muscle electrical signals and skin reactions of college students during exercise. The results show that the optimized posture can make more effective use of muscle strength and reduce skin friction and wear during simulated running. This paper provides new ideas and examples for the optimization of college students' running posture, and also provides reference for the application and exploration of biomechanics in sports training. In addition, the paper can improve the competitive level of college students and make some contributions to the development of sports.

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Section: Design Of Running Posture Optimization Model Based On Biomec...mentioning

confidence: 99%

Running Posture Optimization in the Process of Track and Field Sports Based on Biomechanical Principle

Yang,

Shi,

Huang

2023

Preprint

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External Scaffold for Strengthening the Pulmonary Autograft in the Ross Procedure

Nappi,

Nassif,

Schoell

2024

Biomimetics

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Despite offering several potential benefits over standard prosthetic aortic valve replacement, the use of the pulmonary autograft has been limited to date due to concerns over the risk of pulmonary autograft expansion and the need for reintervention. Several techniques using materials with biomimetic potential have been developed to reduce this complication. The incidence, risk factors, and pathophysiology of pulmonary autograft dilatation are discussed in this article. This seminar will provide an overview of the techniques of external pulmonary autograft support and their advantages and limitations. It also considers future directions for further investigation and future clinical applications of external pulmonary autograft support. Dilatation of the autograft is more likely to occur in patients with aortic regurgitation and a dilated aortic annulus. External scaffolding may prevent autograft stretching and expansion in these specific cases. However, from a biomimetic point of view, any permanent scaffold potentially restricts the movement of the autograft root. This reduces some of the benefits associated with the use of autologous tissue, which is the priority of the Ross procedure. To address this issue, several bioresorbable matrices could be used to support the root during its initial adaptive phase. Control of blood pressure with aggressive therapy is the first line to avoid this problem in the first year after pulmonary autograft implantation, together with support of the annular and sinotubular junction in some selected cases. This is the best way to maintain stable autograft root dimensions while preserving root dynamics. However, to determine the efficacy of this combined external support and best medical management, it is important to perform regular imaging and clinical follow-up.

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Biomechanics of Pulmonary Autograft as Living Tissue: A Systematic Review

Cited by 2 publications

References 114 publications

Running Posture Optimization in the Process of Track and Field Sports Based on Biomechanical Principle

Running Posture Optimization in the Process of Track and Field Sports Based on Biomechanical Principle

External Scaffold for Strengthening the Pulmonary Autograft in the Ross Procedure

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