- Cardiovascular and exercise physiology
- Heart Rate Variability and Autonomic Control
- Knee injuries and reconstruction techniques
- Sports injuries and prevention
- Total Knee Arthroplasty Outcomes
- Shoulder Injury and Treatment
- Cardiac Health and Mental Health
- Shoulder and Clavicle Injuries
- Musculoskeletal pain and rehabilitation
- Physical Activity and Health
- Cardiovascular Health and Disease Prevention
- Spine and Intervertebral Disc Pathology
- Orthopedic Surgery and Rehabilitation
- Adhesion, Friction, and Surface Interactions
- Blood Pressure and Hypertension Studies
- Exercise and Physiological Responses
- Nerve Injury and Rehabilitation
- Cardiovascular Disease and Adiposity
- Cardiac Structural Anomalies and Repair
- Mechanical Circulatory Support Devices
- Heart rate and cardiovascular health
- Adipokines, Inflammation, and Metabolic Diseases
- Lower Extremity Biomechanics and Pathologies
- Cardiovascular Effects of Exercise
- Tendon Structure and Treatment
Sungkyunkwan University
2013-2022
Samsung Medical Center
2013-2022
University of Seoul
2015-2016
Pain and Rehabilitation Medicine
2016
Beaumont Hospital, Royal Oak
2015-2016
University of Illinois Chicago
2015-2016
Samsung (South Korea)
2008-2014
Korea Health Promotion Institute
2014
Center for Nutrition Policy and Promotion
2013
Korea Institute of Sport Science
2006
Purpose: Postoperative radiotherapy for breast cancer has a number of associated complications.This study examined whether supervised moderate-intensity exercise could mitigate the complications that occur during radiotherapy.Patients and Methods: Forty women were randomized before after various operations cancer.Seventeen patients who assigned to group performed therapy 50 min 3 times per week 5 weeks.Twenty-three in control asked perform self-shoulder stretching exercise.The World Health...
Objective Although an exaggerated systolic blood pressure (SBP) response to exercise is a predictor of future hypertension and cardiovascular mortality, the underlying mechanisms are not fully understood. We tested hypothesis that SBP associated with carotid atherosclerosis in cross-sectional study 9073 healthy men (aged 47.8 ± 8.8 years). Methods Exaggerated was defined as 210 mmHg or greater during maximal treadmill test. Carotid stenosis than 25% intima–media thickness 1.2 mm using B-mode...
[Purpose] After an anterior cruciate ligament injury and subsequent reconstruction, quadriceps muscle weakness disruption of proprioceptive function are common. The purpose this study was to examine the effects a 4 weeks preoperative exercise intervention on knee strength power post-surgery. [Subjects Methods] Eighty male patients (27.8±5.7 age), scheduled for reconstruction surgery, were randomly assigned two groups, group (n=40) no (n=40). participated in 4-week 12-week post-operative...
Arterial stiffness is increased in hypertension, even at an earlier stage. The blood pressure (BP) response to exercise reflects the future risk of developing hypertension. We investigated relationship between pulse wave velocity (PWV) and BP evaluate whether arterial normotensive persons with higher BPs.The participants study were adults normal (SBP < 120 mmHg DBP 80 mmHg) without history clinical cardiovascular diseases, who had undergone health screening. Treadmill tests done by modified...
Context: Decreased fasting ghrelin levels and decreased suppression in overweight children have been reported to be associated with insulin resistance. However, Prader-Willi syndrome (PWS) is increased total relative hypoinsulinemia.
Abstract Context: Obestatin is a peptide hormone derived from the proteolytic cleavage of ghrelin preprohormone. In Prader-Willi syndrome (PWS), levels total (TG) and acylated (AG) are increased, these hormones regulated by insulin. Objective: Our objective was to analyze changes in obestatin after glucose loading characterize correlations with TG, AG, Design: Plasma obestatin, insulin were measured PWS children (n = 15) controls 18) during an oral tolerance test. Setting: All subjects...
Although studies have shown an inverse association between cardiorespiratory fitness (CRF) and C-reactive protein (CRP) levels, the underlying mechanisms are not fully understood. There is emerging evidence that autonomic nervous system function related to CRP levels. Because high CRF improved function, we hypothesized low levels would be affected by function. Cross-sectional analyses were conducted on 2,456 asymptomatic men who participated in a medical screening program. Fasting blood...
One of the goals rotator cuff repair is to restore torn tendon its original insertion anatomically. However, it sometimes difficult entire footprint.This study was undertaken evaluate variables affecting this coverage and discern differences in retear rate clinical results between complete incomplete footprint surgery.Case series; Level evidence, 4.From 2007 2009, a total 85 consecutive repairs for medium-to-large tears were identified as having or their footprints. We defined (CC) group...
[Purpose] Little is known about the outcome differences between men and women after anterior cruciate ligament (ACL) reconstruction. Therefore, present study aimed to compare knee muscle strength 1 year ACL [Subjects Methods] Retrospective study. Between 2012 2015, 35 males (mean age, 29.7 ± 010.7 years) females 28.2 11.3 who had undergone primary reconstruction were recruited from Samsung medical centers. We assessed deficit in quadriceps (extensor) hamstrings (flexor) at 60°/sec 180°/sec...
OBJECTIVE There is a lack of evidence how back muscle strength changes after lumbar fusion surgery and exercise influences these changes. The aim this study was to evaluate in posterior interbody (PLIF) measure the effects postoperative program on physical mental health outcomes. METHODS This prospective enrolled 59 women (mean age 58 years) who underwent PLIF at 1 or 2 spinal levels. To assess supervised stabilization (LSE), authors allocated patients an LSE (n = 26) control 33) group....
Quadriceps strength is critical for patients with anterior cruciate ligament (ACL) reconstruction; however, little known about the relationship between preoperative quadriceps deficit and postoperative subjective knee functions. The study aimed to investigate function in after ACL reconstruction. Seventy-five male primary reconstruction surgery hamstring autografts 2014 2017 were included. An isokinetic dynamometer assessed while self-reported functions measured by International Knee...
Chronotropic incompetence, an attenuated heart rate (HR) response to exercise, is independent predictor of cardiovascular mortality, but it not known whether chronotropic incompetence related carotid atherosclerosis. The association between and atherosclerosis in 8567 (age 47.6+/-8.8 years) healthy men was examined.Chronotropic defined as the failure achieve 85% age-predicted maximal HR (APMHR), <80% reserve (HRR), index (CRI). Carotid defined, using B-mode ultrasonography, stenosis >25%...
Low-cardiorespiratory fitness (CRF) has been associated with incident hypertension, but whether temporal changes in CRF are hypertension initially normotensive subjects not known. We investigated the relationship of baseline and longitudinal subjects.Subjects were 3,831 men who participated two health examinations during 1998-2009. All free cardiovascular diseases at baseline. was directly measured by peak oxygen uptake using expired gas analysis a standard treadmill test.During an average 5...