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Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report.
Heliyon
January 2025
Center for Medical Sciences, Ibaraki Prefectural University of Health Sciences, Japan.
Article Synopsis
- The yips is a coordination issue in athletes, especially baseball players, tied to task-specific dystonia.
- This study focused on two baseball players displaying different yips symptoms, analyzing their throwing motions and muscle activity using advanced technology.
- It identified two types of dystonic movements: one involving excessive elbow flexion due to improper muscle contraction, and another featuring tremors from inconsistent muscle activity, emphasizing the need for personalized analysis in understanding and addressing yips symptoms.
Development and clinical validation of passive shoulder exoskeleton with novel gravity compensation mechanism for stabilizing arm tremor of surgeons during minimally invasive surgery.
Front Bioeng Biotechnol
December 2024
Center for Healthcare Robotics, Korea Institute of Science and Technology, Seoul, Republic of Korea.
Introduction: During tasks like minimally invasive surgery (MIS), various factors can make working environment not be ergonomic, and those situations will accumulate fatigue in the surgeon's muscles which will inevitably lead to poor surgical performance. Therefore, there has been a need for technical solutions to solve this problem and one of the methods is exoskeleton robots.
Methods: We designed a passive shoulder exoskeleton whose workspace could be used for MIS to assist the surgeon's movements and performed computational and clinical validation.
Kinematic differences in forehand serve-receiving techniques of the male tennis players at low and high-speed serves.
Sci Rep
November 2024
Shanghai University of Sport School of Athletic Performance, NO. 399, Changhai Road, Yangpu District, Shanghai, 200438, China.
The purpose of this study was to compare the joint, racket, and ball kinematics between the different levels of male tennis players in tennis serve-return at slow and high serve speeds. Thirty male tennis players were divided into an advanced group (n = 15) and an intermediate group (n = 15) based on skill level. The advanced group and intermediate group matched shake hand-grip players performed serve-receive test at the different serve speeds.
View Article and Find Full Text PDFMicroinstability of Major Joints in Movement Disorders: The Hidden Challenge.
Cureus
October 2024
Surgery, Glangwili General Hospital, Carmarthen, GBR.
Article Synopsis
- - Microinstability is a condition causing subtle joint disturbances, especially affecting young female athletes in activities like dancing and gymnastics, and is often hard to diagnose and underreported.
- - Various factors, including microtrauma and movement disorders like Parkinson's, can contribute to the unique joint issues seen in conditions of microinstability, complicating treatment and stability.
- - Diagnosis involves physical exams and advanced imaging, while treatment options range from physical therapy to surgery, aimed at improving joint stability and overall quality of life.
Use of Botulinum Toxin in Upper-Limb Tremor: Systematic Review and Perspectives.
Toxins (Basel)
September 2024
Assistance Publique Hôpitaux de Paris, Service de Rééducation Neurolocomotrice, Hôpitaux Universitaires Henri Mondor, F-94010 Créteil, France.
Article Synopsis
- Tremor is the most common movement disorder, and while oral medications often have limited effectiveness due to side effects, botulinum toxin (BT) shows promise for improving upper limb function, although strong evidence is still lacking.
- A systematic review analyzed existing studies on BT for upper-limb tremor, finding only eight randomized controlled trials and seven open-label studies with small sample sizes, indicating that tailored injections based on individual needs lead to better outcomes.
- While BT injections can improve functionality, they may cause temporary weakness, particularly in wrist and finger movements; the review suggests optimizing injection techniques to minimize weakness and enhance effectiveness in treating tremors.
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