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[Purpose] This study investigated the interaction effects between the levels of smartphone use and hand dominance on handgrip, pinch strengths, and functional hand performance in children. [Participants and Methods] A total of 60 children aged between 9 and 15 were assigned into two groups Group A (high-frequency smartphone users) and Group B (low-frequency smartphone users). Use levels were determined according to the smartphone addiction scale-short version. A hand dynamometer and pinch gauge were used to measure handgrip and pinch strength respectively. Functions of the upper extremity and hand were scored using the Quick Disabilities of the Arm, Shoulder, and Hand questionnaire. [Results] Group A participants had reduced measurements in hand grip and pinch strength, especially in the dominant hand. However, Quick Disabilities of the Arm, Shoulder, and Hand scores indicated that hand function was decreased in the dominant hand whether the child was a high- or low-frequency smartphone user. [Conclusion] Results indicated that high levels of smartphone use diminished hand and pinch-grip strengths as well as and hand function. TH-257 concentration That is, hand and pinch-grip strengths were reduced in the dominant hands of high-frequency smartphone users. However, hand functions were affected in the dominant hands among both high and low-level smartphone users. 2020©by the Society of Physical Therapy Science. Published by IPEC Inc.[Purpose] Low muscle mass and sleep disturbance are common among geriatric patients with cancer. In patients with gastrointestinal cancer, low muscle mass is considered an indicator of poor prognosis. In the recent years, sleep disturbance has attracted much attention as a factor for low muscle mass among community-dwelling elderly individuals; however, such associations are unclear in patients with cancer. The present study investigated the relationship between preoperative sleep disturbance and low muscle mass in patients with gastrointestinal cancer. [Participants and Methods] This cross-sectional survey enrolled 86 elderly patients (aged more than 60 years) with gastrointestinal cancer who were scheduled for curative surgery. Low preoperative muscle mass was defined according to Asian Working Group for Sarcopenia criteria. Sleep disturbance was assessed using the Japanese version of the Pittsburgh Sleep Quality Index, including the subscales. [Results] Twenty-seven patients (31%) were classified as having low muscle mass. After adjusting for confounding factors, bad sleep quality, determined by the subscales, was significantly associated with low muscle mass. [Conclusion] Our results suggest that the evaluation of sleep quality is imperative for addressing low preoperative muscle mass in patients with gastrointestinal cancer. 2020©by the Society of Physical Therapy Science. Published by IPEC Inc.[Purpose] Light-touch support (consisting of a load less then 100 g) is useful for reducing postural sway while standing and walking. However, it is unclear which types of touch and somatosensory inputs are more effective for improving postural control. This study aimed to clarify the effects of active and passive light-touch support, with and without visual information, on postural stability during tandem standing. [Participants and Methods] Eleven young healthy adults maintained tandem standing for 30 s under six conditions. The independent variables were light-touch condition (no, active or passive) and visual condition (eyes open or closed). Postural sway, as measured using a force plate, was considered to indicate postural stability. [Results] There was significantly less postural sway with active light touch compared with passive and no touch. Passive light touch resulted in significantly less sway than no touch. In addition, there was less postural sway with active light compared to passive light touch, especially with the eyes closed. The light-touch support force did not differ between conditions. [Conclusion] Both active and passive light-touch improved postural stability in comparison to no-touch. Active light-touch support significantly improved postural stability. These results could be used to inform therapeutic interventions within clinical settings. 2020©by the Society of Physical Therapy Science. Published by IPEC Inc.[Purpose] This study examined the effects of resistance exercise using the elastic band on the pain and function of patients with degenerative knee arthritis. [Participants and Methods] Thirty patients with degenerative knee arthritis were classified into an experimental group of 15 patients on whom resistance exercise using the elastic band was applied and a control group of 15 patients on whom conservative physical therapy was applied. Both groups received treatments three times a week for four weeks. Pain was measured by the visual analogue scale and function was evaluated by the Korean Western Ontario and McMaster Universities Osteoarthritis Index (K-WOMAC). [Results] The intragroup comparison showed significant decreases in the visual analogue scale and the K-WOMAC in both the experimental and control groups. In the intergroup comparison after treatment, the experimental group showed significantly lower visual analogue scale and K-WOMAC values than the control group. [Conclusion] The results suggest that resistance exercise using the elastic band is an effective intervention for the pain and function of patients with degenerative knee arthritis. 2020©by the Society of Physical Therapy Science. Published by IPEC Inc.[Purpose] This study investigated spine kinematics during normal sitting and flexion sitting with lateral reaching using a three-dimensional motion analysis system. [Participants and Methods] Nineteen healthy young adult males participated in this study. While seated, each participant was asked to reach toward the right using his right hand. Spine angles were defined as T1, T4, T8, L1, and L5 segments. Kinematic data were calculated using the Euler angle and compared to normal sitting and flexion sitting. During flexion sitting, each participant wore a trunk flexion brace. [Results] In the frontal plane, the angle of the T8 segment during flexion sitting was significantly less than during normal sitting. In the axial plane, there were significant differences among the T4, L1, and L5 segments. [Conclusion] Changes in spinal alignment decrease spinal movement and change the movement strategy during lateral reaching while seated. 2020©by the Society of Physical Therapy Science. Published by IPEC Inc.
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