Effects of Body Pillow Use on Sleeping Posture and Sleep Architecture in Healthy Young Adults

Park Insung,Suzuki Chihiro,Suzuki Yoko,Kawana Fusae,Yajima Katsuhiko,Fukusumi Shoji,Kokubo Toshio,Tokuyama Kumpei,Yanagisawa Masashi,Satoh Makoto 대한수면학회 2021 sleep medicine research Vol.12 No.1

Background and Objective Patients with position-dependent obstructive sleep apnea have a > 2-fold higher apnea-hypopnea index when sleeping in a supine position compared with a non-supine position. We investigated the effect of body pillow use on sleeping body position and sleep architecture in healthy young adults. Methods In experiment 1, we evaluated the body pressure distribution with or without body pillow use in 8 healthy young adults [age, 36.5 ± 13.0 years; body mass index (BMI); 20.6 ± 1.2 kg/m2]. In experiment 2, we performed a randomized-crossover intervention study to evaluate the effects of body pillow use on sleeping position and sleep architecture in 10 healthy young adults (age, 24.3 ± 7.8 years; BMI, 21.4 ± 1.7 kg/m2). Sleep architecture was characterized by polysomnography, and body positions were monitored using a sensor. Subjective sleep quality was evaluated with the Oguri-Shirakawa-Azumi sleep inventory, middle age and aged version. Results In experiment 1, body pillow use significantly reduced mean body pressure on the shoulder, hip, and whole body. In experiment 2, mean time spent in the supine, lateral, and prone body positions did not differ significantly between the 2 trials. Body pillow use, however, significantly extended the sustained time spent in the lateral body position compared with the control trial. Subjective sleep quality and sleep architecture did not differ significantly between the 2 trials, but body pillow use decreased the number of short (30 s) slow-wave sleep episodes. Conclusions Sleeping with a body pillow effectively extends sustained time in a lateral sleeping position and prevents segmentation of slow-wave sleep episodes.

소셜 미디어에서 나타나는 신체 긍정주의와 표현 방법, 여성의 주관적 신체 사이즈 인식이 기분 상태와 외모 만족도에 미치는 영향

이민선,이현화 한국의류산업학회 2020 한국의류산업학회지 Vol.22 No.2

Body positivity has emerged among young social media users with the purpose of enhancing a positive body image. In the social media environment, body positivity is frequently presented in the forms of female models' images and/or words that represent individual attitudes toward the female body. The media effects on female viewers' body image differs based on the viewers' perceptions of their own body size. This experimental study examined how body positivity and types of expression on social media influence women's mood and appearance satisfaction by subjective body size. We randomly assigned to 415 young and middle-aged females to one of six experimental conditions which contained three images and three vignettes, each reflecting non-body positivity, body positivity, and control. We used a 3 (body positivity: non-body positivity vs body positivity vs. control) × 2 (types of body positivity expression on media: images vs vignettes) × 2 (subjective body size: under/normal weight vs overweight/obese) between-subject design. The results of MANCOVA revealed the significant main effects of subjective body size on women's mood and appearance satisfaction. There was a significant interaction effect of body positivity and subjective body size on appearance satisfaction. The stimuli representing body positivity caused positive psychological effects for women who perceive themselves being in the under/normal weight range.

요통 환자의 기립위 및 좌,우 외측굴곡시 방사선 사진을 통한 요추 회전변위 분석

허동석 ( Dong Seok Heo ),박석우 ( Seok Woo-park ),박영회 ( Young Hoi Park ),금동호 ( Dong Ho Keum ) 한방재활의학과학회 2003 한방재활의학과학회지 Vol.13 No.2

Objectives : Rotation on vertebra body is common reason causing low back pain and leg radiating pain patients. The present study investigated analysis of the radiological findings on lumbar vertebra rotation between erect position and erect both lateral bending position lumbar AP views in low back pain patients. Method : The study population consisted of 70 patients(outpatients and inpatients clinic of the Dept. of Oriental Rehabilitation Medicine, Dong-Guk Oriental Medical Hospital in Bundang) who were evaluated with X-ray findings of erect position and erect both lateral bending position lumbar AP views. First, patients were measured erect position lumbar AP views by Nash-Moe`s degree. Second, patients were measured erect both lateral bending position lumbar AP views by intervertebral disc space at convexity region and rotation on lumbar vertebral body. They divided into four groups by type of Grice and Cassidy`s classification. Results : 1. The distribution of sex in the low back pain with leg radiating pain was male 30(42.86%) cases, female 40(57.14%) cases. According to age, 30-40s 23(32.9%) cases, 40-50s 15(21.4%) cases, 20-30s 13(18.6%) cases, 50-60s 9(12.9%) cases, 60-70s 5(7.1%) cases, 70-80s 3(4.3%) cases, each 10-20s and 80-90s one case (1.4%). 2. According to Nash-Moe`s degree by erect position lumbar AP view, the grade 0 was male 8(11.4%) cases, female 10(14.3%) cases, the grade Ⅰ was male 17(24.3%) cases, female 22(31.4%) cases, the grade Ⅱ was male 5(7.1%) cases, female 8(11.4%) cases. 3. According to symptoms, first, patients with low back pain were male 22(31.4%) cases, female 20(28.6%) cases. second, patients with leg radiating pain were male 8(11.4%) cases, female 20(28.6%) cases. 4. According to type of Grice and Cassidy`s classification by erect both lateral bending position lumbar AP views, the type Ⅰ was normal group 7(10.0%) cases, the type Ⅲ and Ⅳ were abnormal group each 15(21.4%) cases, 48(68.6%) cases. 5. According to abnormal group in Nash-Moe`s degree by erect position lumbar AP view, the grade Ⅰ was 39(55.7%) cases and then abnormal type Ⅲ, Ⅳ of Grice and Cassidy`s classification were 5(7.1%) cases, 33(47.1%) cases, the grade Ⅱ was 13(18.6%) cases and then abnormal type Ⅲ, Ⅳ of Grice and Cassidy`s classification were 1(1.4%) case, 12(7.1%) cases. So the relationship between rotation of vertebra by erect position lumbar AP view and type of Grice and Cassidy`s classification by erect both lateral bending position lumbar AP views had significant correction(p<0.05). 3 6. According to analysis of symptoms and X-ray findings by erect both lateral bending position at convexity region, patients with leg radiating pain were 28 cases. In the total of 28 cases, 25 cases had shown rotation of vertebra and intervertebra disc space narrowed at convexity region, while 3 cases didn`t have shown. 7. According to abnormal rotation of vertebral body on erect position, the number of group L4 was 48(32.7%) cases the most, group L3 was 43(29.3%) cases, the next group L2 was 30(20.4%) cases. Group L4, L3, L2 had significantly connection with fixation group on erect both lateral bending position(p<0.05). Conclusions : We concluded that the abnormal rotation of lumbar vertebral body had connection with the low back pain and leg radiating pain patients. So we must regard functional X-ray such as erect both lateral bending position lumbar AP views to early find cause.

임상연구 : Sniffing Position은 비만도에 상관없이 후두경소견을 개선시킨다

정희진 ( Hee Jin Jeong ),허진 ( Jin Huh ),노영진 ( Young Jin Ro ),민성원 ( Seong Won Min ),김종수 ( Jong Su Kim ) 대한마취과학회 2007 Korean Journal of Anesthesiology Vol.52 No.5

Background: Most anesthesiologists universally recommend the sniffing position and consider it to be essential for improving the performance of orotracheal intubation. However, a recent investigation reported that the sniffing position does not aid the laryngoscope except under specific circumstances (i.e., obesity). Therefore, this study examined the impact of the BMI (body mass index) on the effectiveness of the sniffing position in improving the laryngeal view. Methods: A video laryngoscopy imaging system and POGO (the percentage of glottic opening) scoring system were used to assess the laryngeal view in 79 adult patients undergoing a laryngoscopy. In each patient, the laryngeal view was videotaped continuously from simple head extension to the sniffing position by inflating a pressure bag as a pillow to obtain approximately 15˚ of flexion of the lower cervical spine on the chest. The variables assessed included the BMI, the POGO score in each position and the change in the POGO score. Results: The POGO scores improved with the sniffing position (18.1 ± 14.3%). However, the sniffing position did not improve the POGO score in 16/79 (20.3%) patients. The sniffing position did not worsen the POGO score in any patient. No significant correlation was found between the BMI and the change in the POGO score in the sniffing position (Pearson`s correlation coefficient r = 0.075). Conclusions: The sniffing position has the potential to improve the laryngeal view in all intubations without needing to consider the BMI. Therefore, the sniffing position appears to be advantageous for orotracheal intubation compared with a simple head extension. (Korean J Anesthesiol 2007; 52: 526~9)

바디 포지티브 문화 이해하기에 대한 자문화기술지

김가영 한국리듬운동학회 2023 한국리듬운동학회지 Vol.16 No.3

This research aimed to understand body-positive culture through the method of autoethnography. The researcher focused on the concept of positive body image and reflected upon and analyzed body-positive culture from their perspective. Additionally, the study aimed to identify and interpret body-positive messages within a cultural context. Ultimately, the research focused on how body-positive culture is being developed in our society. The research questions were, “How did the researcher come to understand body-positive culture?” and “How did the experiences of the researcher lead to a different interpretation of current body culture?” In conclusion, first, the researcher realized that the reflections obtained during the research process ultimately led to a study on positive body image. Second, based on the reflective research brought about by the sexual objectification of female body images, the importance of education about ‘body image’ and establishing a healthy body perspective became evident. Third, while reflecting on oneself within the culture, the researcher contemplated the memories of everyday conversations about bodies, the societal norm of appearance judgments, and why the perspectives of others are significant.

가상현실 3차원 UI를 위한 RNN 기반 몸 자세 추정 방법

성원준(Wonjun Seong),김병문(Byungmoon Kim),고박우(BoYu Gao),권진이(Jini Kwon),김형석(HyungSeok Kim) Korean Institute of Information Scientists and Eng 2020 정보과학회논문지 Vol.47 No.4

Providing intuitive and natural interface is crucial in virtual reality applications. There have been many studies on proper 3D interfaces that require the accurate tracking of body posture. Based on previous studies, we propose an effective body posture estimation method for 3D interfaces. In this study, we focused on the body-fixed UI, especially movements of the upper body. To track body posture, it is necessary to apply additional sensors such as RGB/RGB-D camera, magnetic/optical trackers, etc. The goal of this study was to track the body posture with conventional virtual reality devices only. We applied conventional HMD with head tracker and hand-held controllers. With these three trackers which are not directly attached to the body, an RNN-based method is proposed to effectively estimate the upper body pose. Experiments shows that the proposed method could track the upper body position and orientation within 5% of the error rate, compared with the explicit tracker data. The proposed method could be applied to design body-fixed UI or body-related interfaces without additional devices, which would enhance the accessibility of virtual reality applications.

Plus Size Models and Body Positivity: Focusing on Online Discourses around #Plussizemodel

박선양,윤소정 한국복식학회 2019 International journal of costume and fashion Vol.19 No.1

The body-positive movement is defined as accepting bodily appearance and challenging the normalization of thin bodies. One of this movement’s goals is deconstructing the body ideal. This has led to plus-size models gaining widespread attention. The aim of this study is to assess the online discourse on plus-size models by exploring hashtags(#) concerning plus-size models via text and network analysis. Netlytic, an open-source software program, was used as an analytic tool. The researcher collected 10,000 recent Instagram posts, each under the #plussizemodel and #플러스사이즈모델 (“plus-size model” in Korean) hashtags. The results indicate that #plussizemodel is frequently used in conjunction with positive feelings and attitudes and is highly related to body positivity. Plus-size models in English-speaking communities embrace the body-positive movement through their posts, delivering messages of self-love, body acceptance, self-respect, and rejection of body ideals. In contrast, #플러스사이즈모델 (Korean) is more associated with perspectives on the commercial market. The plus-size community appears to be much more popular in English-speaking communities than their Korean-speaking counterpart. In sum, the result sheds light on the connectedness of the body-positive movement and plus-size models.

리바운드안압계로 안압측정 시 수직과 수평자세 측정값의 신뢰도 비교

김경래,이가영,유영철,Kyoung Lae Kim,Ka Young Lee,Young Cheol Yoo 대한안과학회 2015 대한안과학회지 Vol.56 No.1

Purpose: Rebound tonometer has been used to measure the intraocular pressure (IOP) in the supine as well as normal upright positions. We investigated the reliability of IOP measurements using the rebound tonometer in the upright and supine positions. Methods: IOP was measured in 30 patients (60 eyes) with open-angle glaucoma who had no history of ocular surgery and no anterior segment pathology, in both the upright and supine positions using rebound tonometer (IcarePRO; Icare Finland Oy, Finland). The average IOP value after 6 measurements was recorded. We measured IOP repeatedly until 3 reliable values within normal limits of the measurement’s variation were obtained. We calculated the intraclass correlation coefficient (ICC), coefficient of variation, and number of repeated measurements necessary to obtain 3 reliable IOP values in each position as measured by one examiner. Results: ICC values for IOP measurements were 0.852 (95% confidence interval [CI], 0.784-0.903; p < 0.001) in the upright position and 0.684 (95% CI, 0.563-0.784; p < 0.027) in the supine position. Coefficient of variation was 8.7 ± 0.1% in the upright position and 24.0 ± 0.1% in the supine position. An average of 3.3 times of repeated measurements in the upright position and 6.2 times in the supine position were necessary to obtain 3 reliable IOP values within the normal range of standard deviation. Conclusions: When measuring IOP using the IcarePRO rebound tonometer, the measurement reliability was different between the upright and supine positions. Reproducibility of IOP measurements was lower in the upright than the supine position. J Korean Ophthalmol Soc 2015;56(1):93-98

Comparison of upper and lower body forced air blanket to prevent perioperative hypothermia in patients who underwent spinal surgery in prone position: a randomized controlled trial

유재화,Ok Si Young,Kim Sang Ho,Chung Ji Won,박선영,Kim Mun Gyu,Cho Ho Bum,Song Sang Hoon,Choi Yun Jeong,Kim Hyun Ju,Oh Hong Chul 대한마취통증의학회 2022 Korean Journal of Anesthesiology Vol.75 No.1

Background: We compared upper- and lower-body forced-air blankets in terms of their ability to prevent perioperative hypothermia, defined as a reduction in body temperature to < 36.0°C, during the perioperative period in patients undergoing spine surgery in the prone position.Methods: In total, 120 patients scheduled for elective spine surgery under general anesthesia were divided into an upper-warming group (n = 60) and a lower-warming group (n = 60). After inducing anesthesia and preparing the patient for surgery, including prone positioning, the upper and lower bodies of the patients in the upper- and lower-warming groups, respectively, were warmed using a forced-air warmer with specified upper and lower blankets. Body temperature was measured using a tympanic membrane thermometer during the pre- and post-operative periods and using a nasopharyngeal temperature probe during the intraoperative period. Patients were evaluated in terms of shivering, thermal comfort, and satisfaction in the post-anesthesia care unit (PACU).Results: The incidence of intraoperative and postoperative hypothermia was lower in the upper-warming group than in the lower-warming group ([55.2% vs. 75.9%, P = 0.019] and [21.4% vs. 49.1%, P = 0.002]). Perioperative body temperature was higher in the upper-warming group (P < 0.001). However, intraoperative blood loss, postoperative thermal comfort scale and shivering scores, patient satisfaction, and PACU duration were similar in the two groups.Conclusions: The upper-body blanket was more effective than the lower-body blanket for preventing perioperative hypothermia in patients who underwent spine surgery in the prone position.

Inertial Sensor-Based Relative Position Estimation between Upper Body Segments Considering Non-Rigidity of Human Bodies

이창준(Chang June Lee),이정근(Jung Keun Lee) Korean Society for Precision Engineering 2021 한국정밀공학회지 Vol.38 No.3

Estimation of the relative position between the body segments is an important task in inertial sensor-based human motion tracking. Conventionally, the relative position is determined using orientations and constant segment vectors that connect from segment to joint center, based on the assumption that the segments are rigid. However, the human body segments are non-rigid, which leads to an inaccurate relative position estimation. This paper proposes a relative position estimation method based on inertial sensor signals, considering the non-rigidity of the human bodies. Considering that the effects of non-rigidity are highly correlated with a specific variable, the proposed method uses time-varying segment vectors determined by the specific physical variable, instead of using constant segment vectors. Verification test results for an upper-body model demonstrates the superiority of the proposed method over the conventional method: The averaged root mean square error of the sternum-to-forearm estimation from the conventional method was 34.19 ㎜, while the value from the proposed method was 16.67 ㎜.