간행물

한국전문물리치료학회지 KCI 등재 Physical Therapy Korea

권호리스트/논문검색
이 간행물 논문 검색

권호

제33권 2호 (2026년 8월) 13

1.
2026.08 구독 인증기관 무료, 개인회원 유료
Andressa Camilli Iurczaki, Daniela Fátima Grosso, Thainá Flyssak Piloneto, Dérrick Patrick Artioli, Márcia Rosângela Buzanello, Gladson Ricardo Flor Bertolini
Myofascial pain is a common musculoskeletal condition characterized by myofascial trigger points, functional limitations, and reduced quality of life. Therapeutic ultrasound (TUS) is frequently used in physiotherapy management, yet its effects remain controversial. This systematic review aims to evaluate the effects of TUS compared with placebo, other physical modalities, or conventional treatment in individuals with myofascial pain syndrome, focusing on outcomes of pain, function, and range of motion. This systematic review followed PRISMA 2020 guidelines. Searches were conducted in PubMed, PEDro, CENTRAL, LILACS, and Google Scholar. Eligible studies were randomized controlled trials or quasi-experimental studies comparing TUS to placebo, exercise, other physical modalities, or conventional treatment. Outcomes included pain, function, range of motion, and sensitivity. Risk of bias was assessed using the Cochrane RoB-2 tool. Eight studies were included. Ultrasound was superior to placebo for pain, pressure pain threshold, and function. It demonstrated comparable efficacy to lidocaine injection and other physical modalities. Benefits were observed for trapezius and masticatory muscles across pain, pressure pain threshold, cervical range of motion, and disability outcomes. No serious adverse effects were reported. Methodological quality varied, with only two studies showing low risk of bias; heterogeneity in parameters and co-interventions precluded meta-analysis. TUS appears to be a safe intervention for myofascial pain syndrome, with preliminary evidence of benefits for pain, pressure pain threshold, and function in the trapezius and masticatory muscles. However, given the methodological heterogeneity, limited number of studies, and risk of publication bias, these findings should be interpreted cautiously. Further high-quality trials are needed before firm clinical recommendations can be made.
4,000원
2.
2026.08 구독 인증기관 무료, 개인회원 유료
Sungmin Chun, Junwoo Park, Kitaek Lim, Woochol Joseph Choi
Falls during walking, often triggered by trips and slips, are a major cause of injury in older adults. Perturbation-based training is promising to prevent the falls, but the key biomechanical strategies—elevating and lowering responses and arm movements—that distinguish successful recovery from falls are not clearly suggested. To synthesize evidence on biomechanical strategies and determinants of successful balance recovery after trip- or slip-related perturbations during walking. A systematic search of PubMed, Scopus and EMBASE (1984–2025) identified studies of healthy young and older adults exposed to unexpected trips or slips while walking. Following PRISMA 2020, 15 studies were included and appraised with a modified Downs and Black checklist. Trip recovery was mainly determined by perturbation timing: elevating responses were more common after early-to-mid swing trips, whereas lowering responses were more common after late-swing trips and required greater inter-joint coordination. Slip recovery depended primarily on rapid compensatory stepping of the unperturbed limb executed within a narrow time window. Across both perturbation types, arm movements supported trunk stabilization, yet age-related slowing reduced the margin for successful recovery. Successful balance recovery after trips and slips depends more on the spatial and temporal precision of elevating, lowering and compensatory stepping and arm movements. These findings suggest that fall-prevention interventions should move beyond general balance exercise and incorporate cause-specific perturbation-based balance training. Clinically, training should emphasize rapid strategy selection after trips, accurate compensatory stepping after slips, and coordinated upper- and lower-limb responses, particularly in older adults with reduced recovery capacity.
4,600원
3.
2026.08 구독 인증기관 무료, 개인회원 유료
Jun-su Ahn, Ui-jae Hwang, Hyung-suk Kim, Oh-yun Kwon
Background: Lumbar segmental instability is commonly assessed using sagittal translation (ST) and segmental angulation (SA) on flexion–extension radiographs, but their associations with paraspinal muscle morphology in lumbar spinal stenosis (LSS) remain unclear. Objects: To examine the associations between continuous ST/SA measurements, left–right paraspinal muscle cross-sectional area (CSA) asymmetry and total CSA at L4–5 in patients with LSS, controlling for age, sex, and body mass index (BMI). Methods: Eighty-five patients with LSS were included. The ST (mm) and SA (°) at L4–5 were measured from flexion and extension views. CSA of the paraspinal muscle was measured on magnetic resonance imaging at the L4–5 mid-disc level. CSA asymmetry was defined as right − left and total CSA as right + left. Partial correlations between ST/SA and CSA were calculated after controlling for age, sex, and BMI. Results: Forty-seven female and 38 male were included. The mean ST and SA were 2.15 ± 1.58 mm and 8.80° ± 5.51°, respectively. ST was weakly correlated with SA (partial r = 0.260, p < 0.05). ST showed a weak positive correlation with erector spinae (ES) CSA asymmetry (partial r = 0.223, p < 0.05) but was not associated with psoas major or multifidus asymmetry or total CSA in any muscle. SA was not associated with CSA asymmetry or the total CSA. Conclusion: In patients with LSS, ST at L4–5 was weakly but significantly correlated with ES CSA asymmetry after controlling for age, sex, and BMI. In contrast, SA showed no significant association with paraspinal muscle CSA asymmetry or total CSA, and neither ST nor SA was significantly associated with the total CSA of the paraspinal muscles. ST and SA were weakly correlated, suggesting that translational and angular motions represent partly distinct components of segmental motion in this cohort.
4,000원
4.
2026.08 구독 인증기관 무료, 개인회원 유료
Sung-Hyun Kim
Background: Squat exercises are widely used to strengthen the lower limbs and improve functional performance. Proper ankle stability is essential during squatting because ankle joint instability can alter the neuromuscular control of the proximal muscles. Floss-band application has recently been proposed as a method for enhancing joint stability and muscle activation through external compression and proprioceptive stimulation. Objects: To investigate the effects of applying an ankle floss band during squatting on the activity of the vastus medialis, vastus lateralis, medial hamstring, and lateral hamstring muscles. Methods: Twenty healthy adult males performed squat exercises under 2 conditions (with and without ankle floss bands) using a single-group crossover design. The squat movements were divided into eccentric, isometric, and concentric phases. Muscle activity was recorded using surface electromyography, normalized to percent of maximal voluntary isometric contraction, and analyzed using two-way repeated-measures analysis of variance (ANOVA) and Bonferroni post-hoc tests. Results: Two-way repeated-measures ANOVA revealed a significant main effect of condition, with greater quadriceps and hamstring muscle activity observed in the ankle floss band condition compared with the no-floss condition. Phase-specific analyses further indicated that these differences were most pronounced during the concentric phase. Conclusion: Application of an ankle floss band during squatting exercises effectively enhanced lower limb muscle activity. These findings suggest that ankle flossing may contribute to improved neuromuscular coordination and activation of the lower limb muscles by providing stabilization, and could serve as a useful adjunctive intervention in rehabilitation and training settings.
4,000원
5.
2026.08 구독 인증기관 무료, 개인회원 유료
Ju-hee Park, Yul-ji Won, Oh-yun Kwon
Background: Subacromial impingement syndrome (SIS) is a common cause of shoulder pain and functional limitation. Biomechanical factors, including uncontrolled humeral head motion, rotator cuff dysfunction, and reduced glenohumeral internal rotation (IR) range of motion (ROM), contribute to narrowing of the subacromial space. Excessive anterior and superior humeral head translation is a risk factor for impingement. Quantifying olecranon marker displacement during shoulder rotation at 90° of abduction provides an indirect and clinically feasible approach for assessing humeral rotational control. However, few studies have simultaneously compared shoulder rotational strength, ROM, and humeral rotational control between individuals with and without SIS. Objects: Using olecranon marker displacement, we aimed to compare humeral head rotational control during shoulder IR and external rotation (ER), as well as shoulder IR/ER strength and ROM, between individuals with and without SIS. Methods: Forty male participants were recruited and classified into the SIS and non-SIS groups. Shoulder IR and ER ROM, isometric IR and ER strength, and humeral rotational control were assessed on the dominant side. Rotational control was evaluated by measuring olecranon marker displacement during shoulder IR and ER at 90° of shoulder abduction using a two-dimensional motion-tracking system. Independent t-tests were used for between-group comparisons, with statistical significance set at p < 0.05. Results: Compared with the non-SIS group, the SIS group demonstrated significantly reduced shoulder IR ROM and greater vertical displacement of the olecranon marker during IR (p < 0.05). No significant between-group differences were observed in ER ROM, IR or ER strength, or horizontal displacement of the olecranon marker during IR or ER (p > 0.05). Conclusion: Individuals with SIS exhibited reduced shoulder IR ROM and altered humeral rotational control during IR. Clinically, assessment of shoulder IR ROM and humeral rotational control should be considered when evaluating and managing individuals with SIS.
4,000원
6.
2026.08 구독 인증기관 무료, 개인회원 유료
Yebin Shin, Jangwhon Yoon
Background: Neck pain is the fourth most common musculoskeletal disorder globally. Heavy helmets worn in professions like firefighting contribute to neck muscle tension and pain. However, research on muscle activity with firefighter helmets in various static postures is lacking. Objects: This study aims to analyze the changes in electromyography (EMG) signals of the left sternocleidomastoid (SCM), left upper trapezius (UT), right splenius capitis (SPC), and left cervical erector spinae (CES) during various static head movements (upright, extension, lateral flexion, rotation, running) with and without a standard firefighter helmet. Methods: Twenty-four healthy adults (12 males, 12 females) participated. Subjects performed five static tasks in a randomized order with and without a helmet. Surface EMG was used to measure muscle activity. A paired t-test was used to compare conditions. Results: In the extension posture, SCM and CES activity significantly increased with the helmet (SCM: 21.49% to 24.31%, CES: 9.97% to 12.18%, p < 0.05). In lateral flexion, SCM activity significantly increased (19.66% to 19.95%, p < 0.05). In rotation, CES activity significantly increased (12.20% to 14.55%, p < 0.05). No significant differences were found for UT and SPC in most postures, nor for any muscle during the static running task. Conclusion: Firefighter helmet weight significantly increases muscle activity in the SCM and CES during specific static postures (extension, lateral flexion, rotation). These findings provide a basis for ergonomic improvements in helmet design to reduce neck fatigue.
4,000원
7.
2026.08 구독 인증기관 무료, 개인회원 유료
Ha-yeong Baek, Il-kyu Ahn, Oh-yun Kwon
Background: Chronic ankle instability (CAI) develops following an initial ankle sprain injury, and is characterized by recurrent inversion sprains and a sensation of the ankle “giving way”, often accompanied by pain, swelling, and ankle dysfunction. Neuromuscular deficits-particularly alterations in the peroneal muscles, which act as primary ankle evertors are considered key contributors to impaired stability and function in individuals with CAI. Previous studies have reported delayed or earlier onset times of the peroneal muscles and tibialis anterior (TA) in individuals with CAI during tasks such as gait, landing, and perturbation. However, limited research has examined the onset times of the TA, peroneus longus (PL), and peroneus brevis (PB) during the heel raise (HR), which is generally utilized in clinical settings. Objects: This study aimed to compare the onset times of TA, PL, PB, and extensor digitorum longus (EDL) during unilateral HR between individuals with and without CAI. Methods: Thirty participants with and without CAI were recruited. Surface electromyography (EMG) was used to record TA, PL, PB and EDL activity. Muscle onset times were determined relative to the heel-off event, which was identified using a footswitch synchronized with EMG recording. Independent t-test was conducted to compare muscle onset times between groups. Results: Compared with individuals without CAI, those with CAI demonstrated significantly delayed TA, PL, and PB onset times during unilateral HR (p < 0.05). Conversely, no significant between-group difference was observed in the onset time of the EDL (p > 0.05). Conclusion: These findings suggest that delayed onset times of the peroneal muscles and TA may contribute to the sensation of the ankle “giving way” associated with CAI. Strategies targeting earlier activation of the peroneal muscles may help improve ankle stability during HR tasks in individuals with CAI.
4,000원
8.
2026.08 구독 인증기관 무료, 개인회원 유료
Jeongwoo Je, Chunghwi Yi, Hye-Seon Jeon, Marco Y. C. Pang, Yijian Yang, Woochol Joseph Choi
Background: Neuromuscular electrical stimulation (NMES) has long been used to strengthen skeletal muscles. Voluntary muscle contraction (VMC) obeys the size principle, whereas NMES does not. Thus, the therapeutic effects of VMC vs. NMES on muscle strength may be different, which may in turn impact on balance and proprioception. Objects: To examine the effects of NMES training on muscle strength, balance and proprioception in young adults. Methods: Thirty healthy young adults were randomly assigned to VMC or NMES+ group. All participants performed one-leg standing on a force plate to measure balance, and sat on Biodex for ankle strength and proprioception measures before and after muscle strengthening training, which involved a 4-week resistance exercise training with a theraband for the VMC group, and electrical stimulation of the tibialis anterior, gastrocnemius, and soleus muscles along with VMC for the NMES+ group. Outcome variables included mean distance, root mean square distance, total excursion (TOTEX), mean velocity (MVELO), and 95% confidence circle area acquired from the force plate during single-leg standing; absolute error and strength of ankle dorsiflexion/plantarflexion as measured by Biodex. Results: There were no significant differences between groups in dorsiflexion strength, balance, and proprioception (p > 0.051). However, all outcome variables were associated with time (p < 0.05), and when compared to pre-intervention, the TOTEX and MVELO were 5.6% and 6.5% lower, respectively, in the NMES+ group, and 7.5% and 7.4% lower, respectively, in the VMC group in post-intervention. However, there were no interactions between the group and time for all outcome variables (p > 0.05). Conclusion: A 4-week ankle muscle strengthening training with NMES+ has improved ankle muscle strength, proprioception, and static balance. However, when compared to conventional strengthening exercise, the NMES did not provide additional benefits.
4,000원
9.
2026.08 구독 인증기관 무료, 개인회원 유료
Il-kyu Ahn, Ha-yeong Baek, Seung-yoon Han, Sung-min Ha, Oh-yun Kwon
Background: Aging is accompanied by progressive changes in neuromusculoskeletal function and sensory motor coordination that can influence balance performance in elderly individuals. The single-leg stance (SLS) is commonly used as a simple and practical tool to evaluate balance and functional lower-extremity control. Although hip abductor (HABD) muscles are regarded as the primary stabilizers of the pelvis during unilateral tasks, the association between HABD strength and trunk and pelvic kinematics during SLS in elderly remains poorly understood. Objects: This study aimed to investigate the relationship between HABD muscle strength and trunk and pelvic kinematics during SLS in community-dwelling elderly females. Methods: Forty-three females aged 65 years or older elderly were participated in the study. The isometric HABD strength was measured using a tension sensor and normalized to body weight. Two-dimensional kinematic data, including hip adduction angle, pelvic drop angle, trunk leaning angle, and pelvic shift horizontal displacement, were analyzed during the initial 5 seconds of SLS using Kinovea software. Linear mixed-effects models adjusted for age, height, body weight, and body mass index were used as the primary analysis to examine associations between HABD strength and kinematic variables. Pearson correlation analyses were additionally performed to assess relationships. Results: Linear mixed-effects model analyses revealed no significant associations between HABD strength and any trunk or pelvic kinematic variables during SLS. In Pearson correlation analyses, with no significant relationships between HABD strength and trunk, pelvic kinematics. Conclusion: HABD strength was not significantly associated with trunk or pelvic kinematics during SLS in elderly females. These findings suggest that postural control during SLS is not determined by HABD strength alone.
4,000원
10.
2026.08 구독 인증기관 무료, 개인회원 유료
Ki-hyeon Park, Dong-hyun Kim
Background: Functional flatfoot induces medial longitudinal arch collapse and neuromuscular imbalance between intrinsic and extrinsic foot muscles. While targeted foot core training is a standard intervention, the influence of weight-bearing postures on the selective activation of these muscles remains biomechanically ambiguous. Objects: This study aimed to investigate the electromyographic (EMG) activity of the abductor hallucis (AH) and tibialis anterior (TA) under different weight-bearing conditions and specific foot core exercises in individuals with functional flatfoot. Methods: Thirty young adults with functional flatfoot participated in this cross-sectional study. Surface EMG was utilized to measure the muscle activity of the AH and TA during three exercises: short foot (SF), toe curl (TC), and toe spread (TS). Each exercise was performed under two weight-bearing conditions: non-weight-bearing (sitting) and full-weight-bearing (standing). A 2 × 3 repeated measures ANOVA was conducted to analyze the main effects and interactions. Results: The interaction effect between posture and exercise type was not statistically significant for either the AH (p = 0.145) or TA (p = 0.661). Furthermore, weight-bearing posture yielded no significant main effect on muscle activation. However, the type of exercise demonstrated a highly significant main effect (p < 0.001). Post-hoc analysis revealed that AH activation was significantly greater during SF and TS compared to TC (p = 0.002), with no significant difference between SF and TS. Conversely, TA activation was significantly higher during TC than during SF and TS (p < 0.001). Conclusion: Weight-bearing posture does not dictate the magnitude of foot muscle activation; rather, specific exercise kinematics drive selective neuromuscular recruitment. Clinicians can safely prescribe the SF and TS exercises in a seated position to optimally isolate the AH without inducing compensatory TA hyperactivation, thereby providing a secure and targeted rehabilitation strategy for flexible flatfoot.
4,000원
11.
2026.08 구독 인증기관 무료, 개인회원 유료
Seung-yoon Han, Il-kyu Ahn, Ha-yeong Baek, Oh-yun Kwon
Background: Modern service-oriented occupations have increased concern regarding workrelated musculoskeletal disorders (WMSDs). Food service workers (FSWs) are at elevated risk of wrist-related WMSDs because their duties involve repetitive wrist movements during cooking, utensil handling, and tray carrying. Although ulnar deviation is frequently used in these tasks, ulnar-sided wrist pain (USWP) may be accompanied by direction-specific limitations and functional imbalance. Objects: This study aimed to compare radial and ulnar deviation strength and range of motion (ROM) between FSWs with and without USWP. Methods: Thirty FSWs were classified into USWP (n = 15) and non-USWP (n = 15) groups. USWP was defined as dominant-side pain lasting more than 3 months, a numeric pain rating scale score of ≥ 4 during work, and tenderness reproduced by the ulnar fovea sign test. Active wrist radial deviation ROM (WRDR) and ulnar deviation ROM (WUDR) were measured using a goniometer. Maximal voluntary isometric radial and ulnar deviation strengths were measured using a Smart KEMA strength sensor and normalized to body weight. ROM and strength asymmetry index (AI) were calculated to quantify directional imbalance. Results: The USWP group showed significantly lower WRDR (p = 0.002) and a higher ROM AI (p = 0.001) than the non-USWP group. Normalized radial deviation strength (p < 0.001) and ulnar deviation strength (p = 0.036) were also significantly lower in the USWP group, whereas the strength AI was significantly higher (p < 0.001). No significant between-group differences were observed in WUDR or raw ulnar deviation strength. Conclusion: USWP in FSWs was associated with reduced radial deviation ROM, lower normalized wrist deviation strength, and greater directional asymmetry. These findings suggest that USWP should not be viewed as localized ulnar-sided pain, but as a condition involving altered wrist deviation function. Pain-related limitation or neuromuscular factors may have contributed; however, causality requires caution.
4,000원
12.
2026.08 구독 인증기관 무료, 개인회원 유료
KyeongA Choi, Jayoung Lee, Yuntae Hwang, Chunghwi Yi
Background: Robot-assisted gait training (RAGT) is widely used to improve gait function in children with cerebral palsy (CP). Exoskeleton and end-effector type robots provide different mechanical assistance; however, their immediate effects on plantar pressure distribution and gait speed have not been directly compared. Objects: This study compared the immediate effects of a single session of two robot types of RAGT on plantar pressure distribution and gait speed in children with spastic CP, and examined associations between changes in plantar pressure and gait speed. Methods: Twelve children with spastic CP (4–18 years; Gross Motor Function Classification System I–III) participated in a randomized cross-over design. Each participant completed one 30-minute session of exoskeleton- and end-effector type RAGT with a washout period of ≥ 2 days. Gait speed was assessed using the 10-meter walk test (10MWT), and plantar pressure was measured using the GaitView® system. Outcomes included symmetry ratio (SR), more affected side plantar pressure ratio (MAPR), and more affected side forefoot and rearfoot plantar pressure ratios (MAFPR and MARPR). Robot type effects were examined using two-way repeated-measures analysis, within-robot pre–post changes using paired t-tests, and associations using Pearson correlation coefficients (α = 0.05). Results: No significant main or interaction effects of robot type were found for 10MWT, SR, MAPR, MAFPR, or MARPR (all p > 0.10). Within-robot analyses showed significant reductions in 10MWT and SR and significant increases in MAPR following both interventions (p < 0.05). A significant increase in MARPR was observed only after exoskeleton type RAGT. Changes in gait speed were associated with changes in MAPR in the exoskeleton type condition (r = 0.587, p = 0.045), whereas no significant correlations were observed in the end-effector type condition. Conclusion: Although no significant between-robot differences were observed, exoskeleton and end-effector type robots demonstrated distinct within-robot changes in plantar pressure distribution following a single session of RAGT.
4,000원
13.
2026.08 구독 인증기관·개인회원 무료
Hyeok-jun Lee, Il-kyu Ahn, Oh-yun Kwon
Background: Lumbar disc herniation (LDH) can cause distal lower-extremity weakness through nerve root compression. Specifically, compression of the L5 nerve root may cause weakness in great toe extension (GTE), ankle dorsiflexion (DF), and eversion (EV). Although magnetic resonance imaging (MRI)-derived disc height reflects structural degeneration, few studies have quantitatively examined the association between disc height and L5-innervated muscle strength in individuals with LDH. Objects: This study compared GTE, DF, and EV strength between individuals with LDH and healthy controls and examined the association between MRI-derived disc height and muscle strength within the LDH group. Methods: Thirty participants were divided into two groups: individuals with LDH (n = 15) and healthy controls (n = 15). GTE, DF, and EV strengths were measured using a digital dynamometer. In the LDH group, lumbar MRI was analyzed to measure anterior, middle, and posterior disc heights at both L4–5 and L5–S1. Results: GTE, DF, and EV strength were significantly lower in individuals with LDH than in healthy controls (all p < 0.001). After adjustment for visual analogue scale, the betweengroup differences in normalized GTE, DF, and EV strength remained significant. Within the LDH group, posterior disc height at L4–5 was positively correlated with GTE and DF strength, while posterior disc height at L5–S1 was positively correlated with EV strength (r = 0.532, 0.613, and 0.631, respectively; p < 0.001, respectively). Conclusion: Individuals with LDH showed significantly lower GTE, DF, and EV strength than healthy controls. Within the LDH group, posterior disc height was positively correlated with GTE and DF strength at L4–5 and with EV strength at L5–S1.