Publications by authors named "Seungsoo Baek"

People with disabilities (PWD) suffer from chronic diseases and other problems due to their low physical activity compared to people without disabilities. Physical activity and exercise can prevent chronic diseases and improve health management. However, PWD do not receive proper rehabilitation exercise and sports services immediately after dicharge from hospitals.

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  • * For simulating a non-stationary non-Gaussian process, the authors apply a uniform modulation model on a stationary Gaussian process and utilize nonlinear translation theory, achieving the desired non-stationary outcomes.
  • * The research also examines the stability of a flexible rotary hip joint in a single-leg bouncing model, establishing an energy consumption evaluation to study its role in energy conversion during motion, with experimental results confirming the theoretical model's accuracy in predicting movement trajectories.
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Basketball is one of the students' favorite ball games, and it is also one of the most popular sports for college students to carry out after class. Especially in recent years, with the spread of NBA culture around the world and the extensive development of CUBA in domestic colleges and universities, Yao Ming has appeared in China to compete in the NBA and achieve brilliant achievements. With the increasing investment in the number of basketball venues, basketball itself, as a sport with low dependence on venues, equipment, and people, has the characteristics of economy, convenience, and remarkable sports effect compared with other sports.

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We reported that application of ethanol with lipopolysaccharide (LPS) and carbon tetrachloride (CCl) enhanced alanine aminotransferase (ALT) and aspartate aminotransferase (AST) level. In the current experiment, the protective effect of treadmill running on liver injury caused by ethanol with LPS and CCl in mice was studied. Liver injury severity was determined by measuring ALT and AST level in the blood.

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  • Alzheimer's disease (AD) primarily causes dementia and is marked by short-term memory loss due to brain dysfunction in the cortex and hippocampus.
  • * A study tested the effects of 12 weeks of exercise combined with 40-Hz light flickering on cognitive functions in a 5-month-old 3×Tg-AD mouse model, focusing on neuroinflammation, mitochondrial function, and neuroplasticity.
  • * Results showed that the combination significantly reduced harmful proteins linked to AD, improved mitochondrial function, and enhanced memory, demonstrating a synergistic effect compared to exercise or light flickering alone.
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Purpose: Exercise is a representative noninvasive treatment that can be applied to various diseases. We studied the effect of resistance exercise on motor function and spatial learning ability in Parkinson disease (PD) mice.

Methods: The rotarod test and beam walking test were conducted to evaluate the effect of resistance exercise on motor function, and the Morris water maze test was conducted to examine the effect of resistance exercise on spatial learning ability.

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  • * Alcohol significantly raised ALT and AST levels, and when combined with LPS or CCL, the increase was even greater, indicating that these substances may enhance liver damage.
  • * Additionally, the study found that alcohol treatment elevated levels of inflammatory markers and collagen expression, suggesting a connection between alcohol consumption and liver inflammation and fibrosis.
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Memory state of rat pups born to old and obese mother rats and the effect of a treadmill running of mother rats on the memory of rat pups were studied. The radial 8-arm maze test was performed to detect spatial learning memory, and the level of tumor necrosis factor-α, interleukin (IL)-1β, and IL-6 in the hippocampus was measured by enzyme-linked immunoassay. Western blotting was performed for the expression of nuclear factor kappa-light-chain-enhancer (NF-κB), nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha (IκB-α), B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), matrix metalloproteinase (MMP)-9, and immunohistochemistry for caspase-3 was conducted.

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Background: Health monitoring is important for early disease diagnosis and will reduce the discomfort and treatment expenses, which is very relevant in terms of prevention. The early diagnosis and treatment of multiple conditions will improve solutions to the patient's healthcare radically. A concept model for the real-time patient tracking system is the primary goal of the method.

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Dysfunctions of Parkinson disease (PD) are classified into motor dysfunction, autonomic nervous system dysfunction, and nonmotor dysfunction, and clinical symptoms such as muscle stiffness, tremors, speech disorders, balance disorders, and slow movements appear. Resistance exercise is a main compartment of exercise programs for PD patient. The effect of resistant exercise on short-term memory in PD mice was studied in relation to the activation of nuclear factor (NF)-κB pathway.

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Maternal obesity is known to increase the likelihood of offspring becoming obese, high blood pressure, and other metabolic disorders. After inducing obesity, the effect of treadmill exercise in maternal rats during pregnancy on short-term memory was investigated in relation to neurogenesis in rat pups. Short-term memory was declined in rat pups born to obese maternal rats, and treadmill running during pregnancy alleviated short-term memory impairment in rat pups born to obese maternal rats.

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The effect of treadmill exercise on the social isolation-induced memory impairment in relation with the silent information regulator-1 (SIRT-1) was investigated. The rats in the control groups lived four in the stan-dard cages for 8 weeks. The rats in the social isolation groups lived alone in the small cages for 8 weeks.

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Hyperglycemic diabetes is a chronic metabolic disorder characterized by high level of plasma glucose. Numerous studies have shown that hy-perglycemic diabetes leads to brain dysfunction including cognitive im-pairment and emotional disorders. This study evaluated the impact of exercise on brain dysfunction, hippocampal neurogenesis, and cogni-tive impairment in hyperglycemic diabetes.

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Background: Exercise promotes brain health and improves cognitive functioning in the elderly, while 40-Hz light flickering through the visual cortex reduces amyloid beta (Aβ) by stabilizing gamma oscillation. We examined whether exercise was associated with hippocampus-mediated improvement in cognitive functioning in the 3xTg-Alzheimer's disease (3xTg-AD) murine model following exposure to 40-Hz light flickering and exercise.

Methods: We subjected 12-month-old 3xTg-AD mice to exercise and 40-Hz light flickering for 3 months to investigate spatial learning, memory, long-term memory, Aβ levels, tau levels, mitochondrial functioning including Ca retention and HO emission, apoptosis, and neurogenesis in the hippocampus.

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Bilateral common carotid arteries occlusion (BCCAO) causes an abrupt reduction of cerebral blood flow, and this method has been used to investigate the effects of chronic cerebral hypoperfusion on vascular dementia and neuronal injuries. Chronic cerebral hypoperfusion leads to functional changes in the hippocampus and then results in a cognitive impairment. We investigated the effect of preischemic treadmill exercise on short-term memory and blood-brain barrier integration following cerebral hypoperfusion caused by BCCAO.

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  • Maternal separation during early childhood can negatively impact infant development, increasing the risk of mood disorders like anxiety and depression due to factors like serotonin deficits and mitochondrial dysfunction in the dorsal raphe.
  • The study found that maternal separation stress led to several issues in the dorsal raphe, including reduced serotonin-producing cells and more cell death (apoptosis), which contributed to heightened anxiety and depression.
  • Engaging in exercise showed improvements in mitochondrial function, serotonin levels, and anxiety/depression symptoms, suggesting that exercise could be a valuable non-drug treatment to counteract the effects of maternal separation.
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Maternal separation causes depression and anxiety. Exercise ameliorates maternal separation-induced depression. In this study, we investigated the effect of treadmill exercise on anxiety-like behavior in relation with glycogen synthase kinase 3 beta (GSK3β)/β-catenin pathway using maternal separation rat pups.

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Maternal separation in the developmental stage has a negative influence on brain development and causes depression. The extracellular ligand, Wnt, and its receptors play an important role in axis formation and neural development. Exercise inhibits apoptosis, increases cell proliferation, and exerts antidepressive effect.

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  • Rotenone is commonly used to create animal models for Parkinson's disease (PD) to study the disorder's effects on motor function and neurodegeneration.
  • The study tested the impact of treadmill running on improving motor skills in PD rats, using methods like the rota-rod test and various staining techniques to observe brain cell changes.
  • Results showed that treadmill running enhanced coordination and balance, reduced cell death in the cerebellum, and decreased inflammation, suggesting exercise can help counteract PD-related motor problems.
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Social isolation is known to precipitate depression-like symptoms in rodents and has emerged as a dependable paradigm to screen the behavioral and neurobiological changes observed in humans. In the present study, the undying mechanisms of treadmill exercise on social isolation-induced depression was evaluated. The rat pups in the social isolation groups were housed individually.

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  • - Regular exercise helps reduce symptoms of depression by affecting brain chemistry and promoting neuroplasticity, particularly in the hippocampus.
  • - The study highlights that exercise can increase neurogenesis (the growth of new neurons) in the hippocampus, which is important for mental health and functions similarly to traditional antidepressant treatments.
  • - The Wnt signaling pathway is identified as a crucial factor in how both exercise and antidepressants facilitate cell growth and neurogenesis, suggesting that enhancing this pathway could be beneficial for treating depression.
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Alzheimer disease (AD) is a most common form of dementia and eventually causes impairments of learning ability and memory function. In the present study, we investigated the effects of treadmill exercise on the symptoms of AD focusing on the microglial activation-induced apoptosis. AD was made by bilateral intracerebroventricular injection of streptozotocin.

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Role of exercise on the brain.

J Exerc Rehabil

October 2016

The functions of adult hippocampal neurogenesis have been extensively investigated during the past decade. Numerous studies have shown that adult neurogenesis may play an important role in the hippocampal-dependent learning and memory. This study evaluated the influence of exercise on hippocampal neurogenesis, neural plasticity, neurotrophic factors, and cognition.

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Autism is a complex developmental disorder with impairments in social interaction, communication, repetitive behavior and motor skills. Exercise enhances cognitive function, ameliorates motor dysfunction, and provides protective profits against neurodegeneration. In the present study, we evaluated the effect of treadmill exercise on the motor coordination and Purkinje cell loss in relation with reactive astrocytes and microglial activation in the cerebellum using valproic acid (VPA)-induced autism rat model.

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Attention-deficit/hyperactivity disorder (ADHD) involves clinically heterogeneous dysfunctions of sustained attention, with behavioral hyper-activity and impulsivity. The exact underlying mechanisms of ADHD are not known, however, impairment of dopaminergic system in the nigrostriatal pathway was suggested as the one of the possible mechanisms of ADHD. Tyrosine hydroxylase (TH) is the rate-limiting enzyme that is involved in the synthesis of dopamine.

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