2025, Vol.20, No.2

The Effects of Knee Angle and Audiovisual Feedback on Sagittal Plane Body Alignment in Long Sitting Postures of University Students

Jun-Seok Lee , Ba-Da Choi , Ha-Eun Ko and 6 other persons | 2025, 20(2) | pp.1~10 | number of Cited : 0

Study of the Foot Shape of Children with Cerebral Palsy According to the Arch Height Index for Caliper Measurement Methods

Young-Hwan Kwag

| 2025, 20(2) | pp.11~19 | number of Cited : 0

Usability of the re-R Digital Therapeutic for Knee Replacement Rehabilitation in Older Adults

Sung-Yeon Oh , Chae-Yeong Lee , Su-Hyeon Lee and 5 other persons | 2025, 20(2) | pp.21~32 | number of Cited : 0

Effects of Neck Muscle Tone on Static and Dynamic Balance in Healthy Participants

Ming-Yu Tian , Myoung-Ho Lee , Myoung-Kwon Kim

| 2025, 20(2) | pp.33~46 | number of Cited : 0

The Reliability and Concurrent Validity of the Five Step Test in Chronic Stroke Patients

Seung-Heon An , Jun-Min Lee , Dae-Sung Park

| 2025, 20(2) | pp.47~54 | number of Cited : 0

PURPOSE: This study aimed to comprehensively evaluate the inter-rater and test-retest reliability of the Five Step Test (FST) completion time in individuals with chronic stroke, as well as to determine its absolute reliability indices, including the Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC). Additionally, the concurrent validity of the FST was investigated by comparing its results with established clinical measures of motor and balance function. METHODS: In a cross-sectional design, 40 individuals with chronic stroke (mean age = 59.1 years; mean duration post-stroke = 12 months) underwent FST assessments. Inter-rater and test-retest reliability were analyzed using intraclass correlation coefficients (ICC). SEM, MDC, and MDC% were calculated to quantify measurement error. Concurrent validity was assessed using Pearson’s correlation coefficients between FST performance and scores on the Fugl-Meyer Assessment for the Lower Extremity (FM-LE), Berg Balance Scale (BBS), Timed Up and Go (TUG), and Five Times Sit-to-Stand Test (5STS). RESULTS: The FST demonstrated excellent inter-rater reliability (ICC = .939; 95% CI = .887–.967) and test-retest reliability (ICC = .901; 95% CI = .820–.946). SEM values were 1.71 and 1.87 seconds, and MDC values were 4.73 and 5.18 seconds ―both below 20% of the maximum completion times. Concurrent validity analyses revealed strong negative correlations with FM-LE (r = −.65) and BBS (r = −.71), and significant positive correlations with TUG (r = .60) and 5STS (r = .67). CONCLUSION: The FST is a highly reliable and valid tool for assessing step and stair negotiation ability in individuals with chronic stroke. Its strong psychometric properties and ease of administration support its use as a practical clinical measure for evaluating lower extremity motor function and balance in this population.

Effects of Functional Lower Limb Strengthening Exercises with Partial Body Weight Support on Muscle Strength, Gross Motor Function, and Balance in Children with Cerebral Palsy Who Have Gait Disorder

Hanah Kwak , Suk-Chan Hahm

| 2025, 20(2) | pp.55~64 | number of Cited : 0

Effect of Shoe Lacing Techniques on Plantar Pressure during Walking A Cross-Sectional Study

Hyun-Soo Kim , Beom-Jun Kim , Do-Young Jung

| 2025, 20(2) | pp.65~71 | number of Cited : 0

Comparison of Muscle Activities of Lower Limb according to Foot Width during Lateral Step-up and Step-down Motion: Repeated Measures Design

Yu-Jin Hong , Eun-Byeol Oh , Yong-Jun Cha

| 2025, 20(2) | pp.73~81 | number of Cited : 0

Effects of Squat Exercise with Whole-Body Vibration on Proprioception in Chronic Stroke Patients with Knee Hyperextension

Hee Jin Lee , Han Suk Lee

| 2025, 20(2) | pp.83~93 | number of Cited : 0

Effects of Extracorporeal Shock Wave Therapy and Stabilization Exercises on the Range of Motion, Function, and Muscle Tension in Patients with Chronic Neck Pain

Chang-Min Jung , Bo-Gak Hwang

| 2025, 20(2) | pp.95~105 | number of Cited : 1

Effects of Treadmill Walking with Calf Electrical Muscle Stimulation on Lower Extremity Muscle Thickness and Muscle Activation in Healthy Young Adults: A Randomized Controlled Trial

Ju-Hak Kim , Ye-Ji Kim , Myoung-Kwon Kim

| 2025, 20(2) | pp.107~116 | number of Cited : 0

Association Between Metabolic Syndrome and Restrictive Lung Disease in Older Adults in Korea: Analysis of Data from the 7th Korea National Health and Nutrition Examination Survey

Do-Youn Lee

| 2025, 20(2) | pp.117~126 | number of Cited : 0

The Effect of a Complex Breathing Training Program on Pulmonary Function and Respiratory Muscle Strength in Patients with Parkinson's Disease

Dong-Yeon Kang

| 2025, 20(2) | pp.127~139 | number of Cited : 0

PURPOSE: This study sought to identify the effects of a complex breathing training program on pulmonary function and respiratory muscle strength in patients with mild-to-moderate Parkinson's disease (PD). METHODS: Twenty-one subjects from the PD center at D Hospital in the Busan metropolitan area of the Republic of Korea volunteered to participate in the study. The clinical and demographic parameters, including age, sex, symptom duration, and the modified Hoehn and Yahr (H&Y) stage, were collected. The subjects had stage Ⅱ or Ⅲ PD, based on the modified H&Y staging. They were evaluated according to the movement disorder society sponsored version of the unified Parkinson's disease rating scale (MDS-UPDRS) and given the following testing for pulmonary function: Forced vital capacity (FVC [L]), forced expiratory volume in one second (FEV1 [L]), FEV1/FVC (%), peak expiratory flow (PEF [L]), expiratory reserve volume (ERV [L]), maximal inspiratory pressure (MIP [cmH2O]), and maximal expiratory pressure (MEP [cmH2O]). Eleven participants (9 males and 2 females; mean age 69.6 yrs) were part of the complex breathing training for 12 weeks: breathing background education for 2 weeks, re-breathing training education for 4 weeks, and resistance inspiratory muscle training, which is a combination of a device (Powerbreathe® MEDIC IMT) exercise and a conventional thorax exercise, for 6 weeks. Ten participants (males) served as controls and did not participate in the training. SPSS 21.0 was used to analyze the collected data. RESULTS: The complex breathing training group showed significant improvement (p < .05) in PEF [L], MIP [cmH2O], and MEP [cmH2O] after 12 weeks, while the control group showed no significant differences (p < .05) in any parameter. There were no significant differences (p < .05) in all the items between the groups. CONCLUSION: These findings suggested that a complex breathing training program may improve cough capacity and respiratory muscle performance in patients with mild-to- moderate PD.

KJCKorea
Journal Central

Journal of the Korean Society of Physical Medicine 2025 KCI Impact Factor : 1.09

2025, Vol.20, No.2