Effects of Chin-Down Maneuver on Pharyngeal Pressure Generation According to Dysphagia and Viscosity.

Objective: To demonstrate the effects of chin-down maneuver on swallowing by using high-resolution manometry (HRM).

Methods: HRM data of 20 healthy subjects and 64 dysphagic patients were analyzed. Participants swallowed 5 mL of thin and honey-like liquids in neutral and chin-down positions.

Handgrip Strength in the Korean Population: Normative Data and Cutoff Values.

Background: We aimed to report the age- and sex-specific normative data of Korean handgrip strength (HGS) and to establish the cutoffs values of low HGS in Korean populations.

Methods: We analyzed the HGS data of 23,716 Koreans (10,793 men and 12,923 women) from the Korea National Health and Nutrition Examination Survey from 2014 to 2017. The means with standard deviations (SDs) of HGS were calculated for each 5-year interval starting from 10 years of age.

Application of Automatic Kinematic Analysis Program for the Evaluation of Dysphagia in ALS patients.

Dysphagia in amyotrophic lateral sclerosis (ALS) increases the risk of malnutrition, dehydration, and aspiration pneumonia. Kinematic analysis of videofluoroscopic swallowing study (VFSS) can provide detailed movement of the hyoid bone, revealing abnormalities of swallowing in ALS patients. We developed an automated kinematic analysis program (AKAP) that analyzes the trajectory of the hyoid bone via a visual tracking method.

The Association between Self-reported Sleep Duration and Body Mass Index among Korean Adolescents.

Previous research has shown that lack of sleep is related to Body Mass Index (BMI) in adolescence. This study was designed to investigate the association between sleep duration and BMI among Korean adolescents. We conducted a school-based cross-sectional study of 3,785 adolescents (males: 58.