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전체 선택해제
총 356건 검색
본문검색 결과만 보기
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The Study of Stress Intensity Factors Near Tips of Crack of Different Size
차재경, Cha. Jae-Kyung 한국목재공학회 목재공학 6 Pages
한국목재공학회 목재공학 1988, Vol.16 No.1 62-67 (6 pages)
본연구(本硏究)는 응력강도인자(應力强度因子) 및 할열(割裂) 크기간의 기본적인 관계를 밝히기 위하여 실시하였으며, 이 응력(應力) 탄성인자(彈度因子)는 할열(割裂)의 크기와 위치를 포함한 재료(材料)의 기하학적(幾何學的) 특징을 갖는 유한요소법(有限要素法)에 의해 분석(分析)하였다. 그 결과 높은 응력(應力)이 할열(割裂)이 일어난 단부(端部)에서 일어났으며, 응력강도인자(應力强度因子)의 변화는 할열(割裂) 단부(端部)로부터의 거리에 변화하였다. 할열(割裂) 단부(端部) 요소(要素)의 크기는 응력강도인자(應力强度因子)에... -
The Calculation of Stress Intensity Factors in the Orthotropic Elastic Plate with the Cracked Circular-hole using a Contour Integral Method
김진우, Kim. Jin-Woo 한국군사과학기술학회 韓國軍事科學技術學會誌 10 Pages
한국군사과학기술학회 韓國軍事科學技術學會誌 2005, Vol.8 No.4 136-145 (10 pages)
특이응력해석을 위한 일반화된 가역상반일 경계적분식이 섬유강화복합재를 모형화한 직교 이방성 크랙평판의 수치해를 위하여 발전시켰다. 이 적분방정식은 평판경계에서의 탄성변위와 트랙션의 변수로 구성된 경계적분식의 형태로 하중이 없다는 두 크랙면의 경계조건과 유한의 탄성변형에너지의 개념에서 경계적분식에 필요한 특성해를 규정하고 대응되는 보조해를 계산하였다. 대칭모우드 I형의 중앙원공크랙평판 및 복합모우드형의 반원편측크랙 일단고정평판의 응력확대계수가 임의의 섬유방향각에 따라서 계산되었다. -
A new numerical modelling for evaluating the stress intensity factors in 3-D fracture analysis
Cao. Zongjie, Liu. Yongyu 테크노프레스 Structural engineering and mechanics : An international journal 16 Pages
테크노프레스 Structural engineering and mechanics : An international journal 2012, Vol.43 No.3 321-336 (16 pages)
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Dynamic stress intensity factors for two parallel cracks in an infinite orthotropic plate subject to an impact load
Itou. Shouetsu 테크노프레스 Structural engineering and mechanics : An international journal 12 Pages
테크노프레스 Structural engineering and mechanics : An international journal 2009, Vol.33 No.6 697-708 (12 pages)
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Variations of the stress intensity factors for a planar crack parallel to a bimaterial interface
Xu. Chunhui, Qin. Taiyan, Yuan. Li, Noda. Nao-Aki 테크노프레스 Structural engineering and mechanics : An international journal 14 Pages
테크노프레스 Structural engineering and mechanics : An international journal 2008, Vol.30 No.3 317-330 (14 pages)
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Stress intensity factors for periodic edge cracks in a semi-infinite medium with distributed eigenstrain
Afsar. A.M., Ahmed. S.R. 테크노프레스 Structural engineering and mechanics : An international journal 16 Pages
테크노프레스 Structural engineering and mechanics : An international journal 2005, Vol.21 No.1 67-82 (16 pages)
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The calculation of stress intensity factors by the surface integral method
Jin. Chi-Sub, Jang. Heui-Suk, Choi. Hyun-Tae 테크노프레스 Structural engineering and mechanics : An international journal 13 Pages
테크노프레스 Structural engineering and mechanics : An international journal 1995, Vol.3 No.6 541-553 (13 pages)
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Stress intensity factors for 3-D axisymmetric bodies containing cracks by p-version of F.E.M.
Woo. Kwang S., Jung. Woo S. 테크노프레스 Structural engineering and mechanics : An international journal 12 Pages
테크노프레스 Structural engineering and mechanics : An international journal 1994, Vol.2 No.3 245-256 (12 pages)
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Stress Intensity Factors and Kink Angle of a Crack Interacting with a Circular Inclusion Under Remote Mechanical and Thermal Loadings
Lee. Saebom, Park. Seung-Tae, Earmme. Youn-Young, Chung. Dae-Youl 대한기계학회 KSME international journal 13 Pages
대한기계학회 KSME international journal 2003, Vol.17 No.8 1120-1132 (13 pages)
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Hybrid determination of mixed-mode stress intensity factors on discontinuous finite-width plate by finite element and photoelasticity
Baek. Tae-Hyun, Chen. Lei, Hong. Dong-Pyo 대한기계학회 Journal of mechanical science and technology 9 Pages
대한기계학회 Journal of mechanical science and technology 2011, Vol.25 No.10 2535-2543 (9 pages)
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Effects of cardiac biological activities on low-intensity physical training in doxorubicin-induced cardiotoxicity rat models
Yeong-Kye Ki, Gye-Yeop Kim, Eun-Jung Kim 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2014, 제 3권 제 2호 5 107-111 (5 pages)
Objective: In the present study, we investigated the protective effects of low-intensity treadmill training in doxorubicin-induced cardiotoxicity rat models. Design: Randomized controlled trial. Methods: In this study, we randomly divided them into four groups. The normal group included non-cardiotoxicity normal control (n=10), the control group included non-treadmill training after doxorubicin-induced cardiotoxicity (n=10), the experimental group I included low-intensity treadmill training (3... -
Effect of low intensity pulsed ultrasound in activating the mitogen-activated protein kinase signaling pathway and inhibition inflammation cytokine synthesis in chondrocytes
Eun-Jung Kim, Gye-Yeop Kim 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2014, 제 3권 제 1호 6 33-37 (5 pages)
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Stress and language recovery in individuals with aphasia
Brian Sharp, Paige Shaughnessy, Lee Berk, Noha Daher 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2013, 제 2권 제 2호 6 92-98 (7 pages)
treatment, and at the conclusion of treatment. Language skills were assessed before treatment and at the conclusion of treatment. Results: A significantly higher proportion of individuals in the CIAT treatment group had increased salivary cortisol stress levels when compared to the traditional treatment group at the mid-point of the program (80% versus 30% respectively, p<0.05). There was no significant difference in the proportion of individuals with increased cortisol stress by the end of the... -
Apoptosis in response to heat stress is positively associated with heat-shock protein 90 expression in chicken myocardial cells in vitro
Xiao-Hui Zhang, Hong Wu, Shu Tang, Qiao-Ning Li, Jiao Xu, Miao Zhang, Ya-Nan Su, Bin Yin, Qi-Ling Zhao, Nicole Kemper, Joerg Har 대한수의학회 Journal of Veterinary Science 12 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 2호 2 129-140 (12 pages)
To determine heat-shock protein (Hsp)90 expression is connected with cellular apoptotic response to heat stress and its mechanism, chicken (Gallus gallus) primary myocardial cells were treated with the Hsp90 promoter, aspirin, and its inhibitor, geldanamycin (GA), before heat stress. Cellular viability, heat-stressed apoptosis and reactive oxygen species level under different treatments were measured, and the expression of key proteins of the signaling pathway related to Hsp90 and their... -
Effects of aluminum on the reduction of neural stem cells, proliferating cells, and differentiating neuroblasts in the dentate gyrus of D-galactose-treated mice via increasing oxidative stress
Sung Min Nam, Jong Whi Kim, Dae Young Yoo, Woosuk Kim, Hyo Young Jung, Jung Hoon Choi, In Koo Hwang, Je Kyung Seong, Yeo Sung Yo 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 2호 1 127-136 (10 pages)
reduction effect was exacerbated in D-galactose-treated mice compared to vehicle-treated adult mice. Moreover, exposure to Al enhanced lipid peroxidation in the hippocampus and expression of antioxidants such as Cu, Zn- and Mn-superoxide dismutase in D-galactose-treated mice. These results suggest that Al accelerates the reduction of neural stem cells, proliferating cells, and differentiating neuroblasts in D-galactose-treated mice via oxidative stress, without inducing loss in mature neurons. -
N-acetylcysteine protects against cadmium-induced oxidative stress in rat hepatocytes
Jicang Wang, Huali Zhu, Xuezhong Liu, Zongping Liu, 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 4호 4 485-493 (9 pages)
12 h but decreased after 24 h. superoxide dismutase and catalase activities increased at 12 h and 24 h. glutathione S-transferase and glutathione reductase activities decreased, but not significantly. Rat hepatocytes incubated with NAC and Cd simultaneously had significantly increased viability and decreased Cd-induced ROS generation. Our results suggested that Cd induces ROS generation that leads to oxidative stress. Moreover, NAC protects rat hepatocytes from cytotoxicity associated with Cd. -
Quantitative Doppler echocardiography during Dobutamine stress test in canine mitral regurgitant model
HoJungChoi, SungJunWon, KiChangLee, MinCheolChoi, JungHeeYoon 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 6 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2004, 제 44권 제 2호 21 317-322 (6 pages)
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Effects of intermittent ladder-climbing exercise training on mitochondrial biogenesis and endoplasmic reticulum stress of the cardiac muscle in obese middle-aged rats
KijinKim, NayoungAhn, SuryunJung, SoleePark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 8 633-641 (9 pages)
The aim of this study is to investigate the effects of intermittent ladder-climbing exercise training on mitochondrial biogenesis and ER stress of the cardiac muscle in high fat diet-induced obese middle-aged rats. We induced obesity over 6 weeks of period in 40 male Sprague-Dawley rats around 50 weeks old, and were randomly divided into four experimental groups: chow, HFD, exercise+HFD, and exercise+chow. The exercising groups underwent high-intensity intermittent training using a... -
Resveratrol attenuates 4-hydroxy-2-hexenal-induced oxidative stress in mouse cortical collecting duct cells
EunHuiBae, SooYeonJoo, SeongKwonMa, JongUnLee, SooWanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.3 1 229-236 (8 pages)
Resveratrol (RSV) may provide numerous protective eff ects against chronic inflammatory diseases. Due to local hypoxia and hypertonicity, the renal medulla is subject to extreme oxidative stress, and aldehyde products formed during lipid peroxidation, such as 4-hydroxy-2-hexenal (HHE), might be responsible for tubular injury. This study aimed at investigating the eff ects of RSV on renal and its signaling mechanisms. While HHE treatment resulted in decreased expression of Sirt1, AQP2, and... -
Epigallocatechin-3-Gallate (EGCG) Attenuates Traumatic Brain Injury by Inhibition of Edema Formation and Oxidative Stress
BoZhang, BingWang, ShuhuaCao, YongqiangWang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.6 3 491-497 (7 pages)
inhibited microglia activation. Western blotting and immunohistochemistry results showed that administering of EGCG significantly inhibited the levels of aquaporin-4 (AQP4) and glial fibrillary acidic protein (GFAP) expression. TBI-induced oxidative stress was remarkably impaired by EGCG treatment, which elevated the activities of SOD and GSH-PX. Conversely, EGCG significantly reduced the contents of MDA after TBI. In addition, EGCG decreased TBI-induced NADPH oxidase activation through inhibiti... -
Low Intensity Resistance Exercise Training with Blood Flow Restriction: Insight into Cardiovascular Function, and Skeletal Muscle Hypertrophy in Humans
Song-YoungPark, YiSubKwak, rewHarveson, JoshuaCWeavil, KookE.Seo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.3 1 191-196 (6 pages)
is required. Recently, blood flow restriction (BFR) with low intensity resistance exercise (LIRE) has been used for such special populations to improve their function and exercise capacity. Although BFR+LIRE has been intensively studied for a decade, a comprehensive review detailing the effects of BFR+LIRE on both skeletal muscle and vascular function is not available. Therefore, the purpose of this review is to discuss previous studies documenting the effects of BFR+LIRE on hormonal and... -
Bis is Induced by Oxidative Stress via Activation of HSF1
HyungJaeYoo, Chang-NimIm, Dong-YeYoun, HyeHyeonYun, Jeong-HwaLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 8 403-409 (7 pages)
of stress, such as heat shock or a proteasome inhibitor via the activation of heat shock factor (HSF)1. We report herein that Bis expression is increased at the transcriptional level in HK-2 kidney tubular cells and A172 glioma cells by exposure to oxidative stress such as H2O2 treatment and oxygen-glucose deprivation, respectively. The pretreatment of HK-2 cells with N-acetyl cysteine, suppressed Bis induction. Furthermore, HSF1 silencing attenuated Bis expression that was induced by H2O2,... -
Effect of Exercise Intensity on Unfolded Protein Response in Skeletal Muscle of Rat
KihoonKim, Yun-HyeKim, Sung-HyeLee, Man-JoongJeon, So-YoungPark, Kyung-OhDoh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.3 3 211-216 (6 pages)
Endoplasmic reticulum (ER) stress, unfolded protein response (UPR), and mitochondrial biogenesis were assessed following varying intensities of exercise training. The animals were randomly assigned to receive either low- (LIT, n=7) or high intensity training (HIT, n=7), or were assigned to a control group (n=7). Over 5 weeks, the animals in the LIT were exercised on a treadmill with a 10° incline for 60 min at a speed of 20 m/min group, and in the HIT group at a speed of 34 m/min for 5 days a... -
Chronic Administration of Monosodium Glutamate under Chronic Variable Stress Impaired Hypothalamic-Pituitary-Adrenal Axis Function in Rats
HeeJeongSeo, Hyang-DoHam, HyungYongJin, WooHyungLee, HyunSubHwang, Soon-AhPark, YongSungKim, SuckCheiChoi, SeoulLee, KyungJaeOh, ByungSook 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.4 3 213-221 (9 pages)
(HPA) axis is the primary endocrine system to respond to stress. The HPA axis may be affected by increased level of corticotrophin-releasing factors under chronic stress and by chronic administration of monosodium glutamate (MSG). The purpose of this study was to investigate whether chronic MSG administration aggravates chronic variable stress (CVS)-induced behavioral and hormonal changes. Twenty-four adult male Sprague-Dawley rats, weighing 200∼220 g, were divided into 4 groups as follows:... -
Effects of Repeated Citalopram Treatments on Chronic Mild Stress- Induced Growth Associated Protein-43 mRNA Expression in Rat Hippocampus
Sang-HaPark, Song-hyenChoi, JiminLee, SeungwooKang, You-ChanShin, Hyun-JuKim, HyunJungKim, SeungKeonShin, Min-SooLee, Kyung-HoShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.3 5 117-124 (8 pages)
stress everyday during CMS procedures. Acute immobilization stress significantly increased GAP-43 mRNA expression in all subfields of the hippocampus, while CMS significantly decreased GAP-43 mRNA expression in the dentate granule cell layer (GCL). Repeated citalopram treatment decreased GAP-43 mRNA expression in the GCL compared with unstressed controls, but this decrease was not further potentiated by CMS exposure. Similar decreases in GAP-43 mRNA expression were observed in CA1, CA3 and CA4... -
Inhalation of Clary Sage Oil before Chemotherapy Alleviates Anxiety and Stress without Changing Blood Pressure: A Randomized Controlled Trial
Kim Moonsuk, Shin You Kyoung, Seol Geun Hee 한국기초간호학회 Journal of Korean Biological Nursing Science 9 Pages
한국기초간호학회 Journal of Korean Biological Nursing Science 2021, Volume 23, No 4 2 267-275 (9 pages)
(Stress-VAS), blood pressure, and heart rate were measured before and after the inhalation prior to undergoing chemotherapy. Results: Anxiety-VAS and Stress-VAS were significantly lower after than before inhalation of clary sage oil (p<.01 and p<.05, respectively) and linalyl acetate (p<.05 and p<.05, respectively), despite having no significant difference in the three groups compared with control group. Systolic (p<.05) and diastolic (p<.01) blood pressure before undergoing chemotherapy were... -
Factors Related to N-Terminal Pro-B-Type Natriuretic Peptide as a Biomarker for Heart Failure
Hyeong Suk Lee, Mona Choi, Eui Geum Oh 한국기초간호학회 Journal of Korean Biological Nursing Science 10 Pages
한국기초간호학회 Journal of Korean Biological Nursing Science 2016, Volume 18, No 4 7 247-256 (10 pages)
Purpose: This study aimed to examine the relationships between the N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels with the sociodemographic and clinical factors, self-care behaviors, and the physical symptom experiences in patients with heart failure. Methods: This cross-sectional study utilized a convenience sample of adult outpatients and inpatients who attended a cardiology department in a tertiary hospital in Seoul, Korea. The data from 154 patients with heart failure were... -
Effects of Cognition, Daily-living Stress, and Health-promotion Behavior on Subjective Memory Complaints by Community-dwelling Elders
Hwang Eun Hee, Kim Kon Hee 한국노인간호학회 노인간호학회지 9 Pages
한국노인간호학회 노인간호학회지 2019, 제 21권 제 3호 1 135-143 (9 pages)
and DS were positively correlated (r=.47, p<.001). Presence of a spouse, economic status, cognition, and DS were significantly associated with and accounted for 30.8% of the variance in SMC. Conclusion: Cognition and stress are important factors related to SMC and should be considered along with the presence of a spouse and economic status. Efforts to improve cognitive, psychological and physical health will help prevent memory impairment and further improve the quality of life for elders. -
Influences of equal biaxial tensile loads on the stress fields near the mixed mode crack
Shin. Dong-Chul, Nam. Jeong-Hwan, Hawong. Jai-Sug, Lee. Joon-Hyun 대한기계학회 Journal of mechanical science and technology 10 Pages
대한기계학회 Journal of mechanical science and technology 2009, Vol.23 No.8 2320-2329 (10 pages)
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The association of Hsp90 expression induced by aspirin with anti-stress damage in chicken myocardial cells
Xiao-hui Zhang, Huai-sen Zhu, Zhuang Qian, Shu Tang, Di Wu, Nicole Kemper, Joerg Hartung, En-dong Bao 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 1호 5 35-44 (10 pages)
The protective effect of aspirin during exposure to heat stress in broiler chickens was investigated. We assayed pathological damage, expression and distribution of Hsp90 protein and hsp90 mRNA expression in chicken heart tissues after oral administration of aspirin following exposure to high temperature for varying times. Heat stress induced increases in plasma aspartate aminotransferase, creatine kinase and lactate dehydrogenase activities while causing severe heart damage, which was... -
Tetramethylpyrazine reverses anxiety-like behaviors in a rat model of post-traumatic stress disorder
Bombi Lee, Insop Shim, Hyejung Lee, Dae-Hyun Hahm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 14 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.5 6 525-538 (14 pages)
Post-traumatic stress disorder (PTSD) is a trauma-induced psychiatric disorder characterized by impaired fear extermination, hyperarousal, and anxiety that may involve the release of monoamines in the fear circuit. The reported pharmacological properties of tetramethylpyrazine (TMP) include anti-cancer, anti-diabetic, anti-atherosclerotic, and neuropsychiatric activities. However, the anxiolytic-like effects of TMP and its mechanism of action in PTSD are unclear. This study measured several... -
Effect of pertussis toxin pretreated centrally on blood glucose level induced by stress
Hong-WonSuh, Yun-BeomSim, Soo-HyunPark, NaveenSharma, Hyun-JuIm, Jae-SeungHong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.5 4 467-476 (10 pages)
suggest that the hyperglycemia produced by physical stress, emotional stress, restraint stress, and the cold-water swimming stress appear to be mediated by activation of centrally located PTX-sensitive G proteins. The reduction of blood glucose level by PTX appears to due to the reduction of plasma insulin level. The reduction of blood glucose level by PTX was accompanied by the reduction of plasma insulin level. Plasma corticosterone level up-regulation by PTX in stress models may be due to a... -
Effect of a Randomized Controlled Trial Walking Program on Walking, Stress, Depressive Symptoms and Cardiovascular Biomarkers in Elderly Korean Immigrants
Mo?Kyung Sin, Brandon Ibarra, Thomas Tae, Patrick J.M. Murphy 한국기초간호학회 Journal of Korean Biological Nursing Science 8 Pages
한국기초간호학회 Journal of Korean Biological Nursing Science 2015, Volume 17, No 2 1 89-96 (8 pages)
of a walking program on walking behavior (pedometer steps count), stress (cortisol), depressive symptoms (CESD-10), and cardiovascular disease biomarkers (hs-CRP and fibrinogen) via venipuncture in EKIs. Methods: Seventy EKIs recruited from a Korean community were randomly assigned to a 12-week walking group or control group in a 3:2 ratio. The working program included a pedometer, buddy, monthly coffee card, weekly call for goal setting, and physical activity consultation. Walking group EKIs...
