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Alwis Gayani - - 2008
ABSTRACT: BACKGROUND: It is known that physical activity during growth has a positive influence on bone mineral accrual, and is thus possibly one strategy to prevent osteoporosis. However, as bone geometry, independent of areal bone mineral density (aBMD), influences fracture risk, this study aimed to evaluate whether hip structure in ...
Umemura Yoshihisa - - 2008
The frequency per week or day of high-impact, low-repetition jump exercise for osteogenic response was assessed by two experiments. In the first experiment, 48 11-week-old rats were randomly divided into five groups: a sedentary control (W0: n = 8), one exercise session per week (W1: n = 10), three exercise ...
Karlsson Magnus K - - 2008
The prevalence of osteoporosis with related fragility fractures has increased during the last decades. As physical activity influences the skeleton in a beneficial way, exercise may hypothetically be used as a prophylactic tool against osteoporosis. This review evaluates if exercise-induced skeletal benefits achieved during growth remain in a long-term perspective. ...
Karlsson Magnus K - - 2008
The incidence of fragility fractures has increased during the last half of the 1990's. One important determinant of fractures is the bone mineral content (BMC) or bone mineral density (BMD), the amount of mineralised bone. If we could increase peak bone mass (the highest value of BMC reached during life) ...
Panuccio Maria Rosaria - - 2009
Batch experiments were performed to evaluate the combined effects of ionic activity, pH, and contact time on the cadmium sorption in three different minerals, vermiculite, zeolite, and pumice, commonly employed as substrata in nurseries and recently considered for their potential use in remediation methods. The extent of cadmium sorption was ...
Smith Scott M - - 2008
Bone loss associated with disuse during bed rest (BR), an analog of space flight, can be attenuated by exercise. In previous studies, the efficacy of either aerobic or resistive exercise countermeasures has been examined separately. We hypothesized that a regimen of combined resistive and aerobic exercise during BR would prevent ...
Katase Takao - - 2008
Thirteen isomers of branched para-nonylphenols (para-NP) in three technical mixtures were isomer-specifically determined using their synthesized standards by SIM of structurally specific ions, m/z 135, 149 or 163 with GC-MS. Of the 13 isomers, four isomers, 4-(2,4-dimethylheptan-4-yl)phenol, 4-(4-methyloctan-4-yl)phenol, 4-(3-ethyl-2-methylhexan-2-yl)phenol (3E22NP) and 4-(2,3-dimethylheptan-2-yl)phenol synthesized for their determinations were first used as ...
Dykgraaf Susanne - - 2008
The objective was to determine the effects of early exercise on the articular cartilage and subchondral bone at specific sites of the distal third metacarpal and metatarsal bones of 12 young Thoroughbred horses allowed free choice exercise at pasture. Six of the horses had additional controlled exercise 5 days per ...
Zebala Lukas P - - 2007
PURPOSE: To evaluate the hypotheses that all Madelung's deformity subjects have dyschondrosteosis (defined as short stature and mesomelia, in addition to Madelung's deformity) and to evaluate the concept that Madelung's deformity may affect the entire radius. METHODS: A radiographic and medical records review was performed for 26 subjects (46 extremities) ...
Mori Shozo - - 2007
The angiogenetic effect of asialoerythropoietin (asialoEPO) was investigated in a murine (BALB/c) ischemic hind limb model created by ligating the right femoral artery, and severe ischemia was created by ligating two points on the femoral artery. The mice were allocated to six groups: 1, Control (n = 15), no treatment; ...
Zirkle Molly - - 2007
OBJECTIVES: There is great interest in training surgeons in the technical aspects of their craft through simulation and laboratory-based exercises. However, there are as yet only a few objective tools to assess technical performance in a laboratory setting. This study assesses three potential objective assessment tools for a traditional otolaryngology ...
Castela José - - 2008
Biomonitoring programs to access the ecological integrity of freshwaters tend to rely exclusively on structural parameters. Here we evaluated stream ecological integrity using (a) benthic macroinvertebrate derived metrics and a biotic index as measures of structural integrity and (b) oak litter decomposition and associated fungal sporulation rates as measures of ...
Stakiw J - - 2008
BACKGROUND: The effect of exercise on von Willebrand factor (VWF) and ADAMTS-13 levels in individuals with von Willebrand disease (VWD) has never been reported. OBJECTIVES: The aim was to quantify the effect of a standardized exercise protocol on individuals with type 1 and type 2B VWD. PATIENTS/METHODS: Thirty individuals from ...
Okuda Ryuzo - - 2007
BACKGROUND: The relationship between the shape of the first metatarsal head and hallux valgus deformity remains controversial. The purpose of the present study was to retrospectively analyze differences in the radiographic appearance of the shape of the lateral edge of the first metatarsal head between women with normal feet and ...
Gerdhem Paul - - 2008
Information on objectively assessed physical activity in elderly people is scarce. The aim of this study was to investigate accelerometer measures in elderly women, and its relation to other indices of physical activity and bone density. A subset of 57 women, all 80 years old, (range 80.0-80.7) of the Malmö ...
Smith M Z - - 2008
This study examined the efficacy of two different resistance training programs in enhancing bone modeling and bone mineral density (BMD) in maturating rats. One exercise mode involved lifting a lighter weight with more repetitions (LI), while the other regimen involved lifting a heavier weight with fewer repetitions (HI) where the ...
Martin Berdine R - - 2007
PURPOSE: Exercise-induced sweat calcium losses have been reported as substantial in male athletes. The first aim of the study was to quantify the increase in 24-h total dermal calcium losses and the net changes in calcium retention in active sportswomen after a 1-h strenuous exercise session. A second aim was ...
Carlson Kristian J - - 2007
Comparative studies of vertebrate morphology that link habitual locomotor activities to bone structural properties are often limited by confounding factors such as genetic variability between groups. Experimental assessment of bone's adaptive response to altered activity patterns typically involves superimposing exercise onto a normal locomotor repertoire, making a distinction between qualitative ...
Fuchizaki Kazuhiro - - 2007
Synchrotron x-ray diffraction measurements were performed on liquid SnI4 up to a scattering vector of 25 A(-1), utilizing a horizontal two-axis diffractometer installed at the SPring-8 bending magnet beam line BL04B2 in Japan. An effective method based on the maximum entropy method was devised to transform the measured total structure ...
Loukas Marios - - 2007
With recent laparoscopic advancements in retroperitoneal and thoracic surgical procedures, familiarity with major lymphatic structures, such as including the cisterna chyli (CC) and thoracic duct (TD), has proven beneficial in avoiding misdiagnosis and iatrogenic intraoperative injury. In this light, the aim of our study was to explore and delineate the ...
Pavy-Le Traon A - - 2007
Bed rest studies of the past 20 years are reviewed. Head-down bed rest (HDBR) has proved its usefulness as a reliable simulation model for the most physiological effects of spaceflight. As well as continuing to search for better understanding of the physiological changes induced, these studies focused mostly on identifying ...
Klentrou Panagiota - - 2007
The effects of 12 wk of exercise training using weighted vests on bone turnover and isokinetic strength were evaluated in postmenopausal women randomly assigned as exercisers (EX; n = 9) or controls (CON; n = 7). Training included 3 multimodal exercise sessions per wk wearing weighted vests. The vest load ...
Yamaguchi T - - 2007
OBJECTIVE: Hybrid exercise (HE) was designed to use the force generated by an electrically stimulated antagonist to provide resistance to a volitionally contracting agonist. The purpose of this study was to measure and compare the soleus H-reflex before and after HE or conventional resistance exercise (CRE). METHODS: The experiments were ...
Warren L Elisabeth - - 2007
The NASA Artificial Gravity Bed Rest Pilot Study was the first cross-institutional study to investigate the effectiveness of intermittent artificial gravity (AG) as a multi-system countermeasure to bed rest deconditioning in human subjects. Daily treatments by 60 min exposures to short radius centrifugation (SRC) were used to load the longitudinal ...
Borer Katarina T - - 2007
INTRODUCTION: Mechanical stresses on the bone are an important aspect of physical activity that promotes bone preservation and increases in bone mass. Exercise intensities leading to bone preservation and accrual have not been adequately defined for humans in general, and postmenopausal women in particular. MATERIALS AND METHODS: To quantify parameters ...
Chen Shu-Chun - - 2007
In the lobster cockroach Nauphoete cinerea, the dominant-subordinate hierarchy formed via the agonistic interactions is unstable, and changes in rank order are common. Our previous results showed that in the first encounter fight during initial rank formation, microgram levels of 3H-2B are released by the aggressive posture (AP)-adopting dominant male. ...
von Stengel Simon - - 2007
To investigate the effect of two different schemes of loading in resistance training on bone mineral density (BMD) and pain in pretrained postmenopausal women. 53 pretrained women (mean (SD) age 58.2 (3.7) years) who carried out a mixed resistance and gymnastics programme were randomly assigned to a strength training (ST) ...
From Aaron M AM Department of Internal Medicine, College of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN 55905, - - 2007
To evaluate the relationship between bone mineral density (BMD) and ischemic heart disease and exercise capacity, as assessed by stress testing. We retrospectively reviewed entries in the echocardiography database for 28,048 consecutive patients who underwent exercise echocardiography for standard clinical indications between August 1, 1998, and October 1, 2003, to ...
Vainionpää Aki - - 2007
INTRODUCTION: Impact exercise is known to be beneficial for bones, but information regarding its effects on other health aspects is scarce. The aim of this study was to assess the effects of high-impact exercise on physical performance and glucose and lipid profiles. METHODS: We performed a 12-month, population-based, randomized controlled ...
Fuchs R K - - 2007
Exercise and bisphosphonate therapies increase bone strength by primarily increasing bone formation and reducing resorption, respectively. Based on these different mechanisms of action, it is possible that combined introduction of exercise and bisphosphonate therapies generates greater improvements in bone mass and strength than either intervention alone. The aim of this ...
Magkos F - - 2007
Previous research on the effects of running and swimming on areal bone mineral density (aBMD) is inconclusive. This study examined the putative roles of the type and intensity of exercise in this respect, by measuring aBMD (adjusted for age, weight, and height) of the total body and of various subregions ...
Bonnet Nicolas - - 2007
The bone response to physical exercise may be under control of the SNS. Using a running session in rats, we confirmed that exercise improved trabecular and cortical properties. SNS blockade by propranolol did not affect this response on cortical bone but surprisingly inhibited the trabecular response. This suggests that the ...
Karapolat Hale - - 2008
To determine the effect of functional performance, respiratory function, and osteopenia on the quality of life after heart transplantation. Thirty-one patients were included. Functional performance (peak oxygen consumption - pVO2), respiratory function, quality of life (the short form 36 - SF36) and lumbar spine and hip bone mineral density (BMD) ...
Shiguemoto Gilberto Eiji - - 2007
OBJECTIVE: To determine the effects produced by the ingestion of a fermented soy product (soy yoghurt), supplemented with isoflavones and associated with a resistive exercise program, on the bone metabolism of mature ovariectomized (Ovx) and sham-ovariectomized (sham-Ovx) rats. METHODS: A total of 56 rats were used. They were divided into ...
Seo Sang Won - - 2007
Amnestic mild cognitive impairment (aMCI) can be classified into single domain (S-aMCI) and multiple domain (M-aMCI) subtypes. However, there have been no studies that specifically investigate the structural differences that support this classification. In an attempt to compare regional cortical thickness in two subtypes of aMCI, we aimed to map ...
Macdonald Heather M - - 2007
This 16-month randomized, controlled school-based study compared change in tibial bone strength between 281 boys and girls participating in a daily program of physical activity (Action Schools! BC) and 129 same-sex controls. The simple, pragmatic intervention increased distal tibia bone strength in prepubertal boys; it had no effect in early ...
Bass Shona L - - 2007
We examined the combined effects of exercise and calcium on BMC accrual in pre- and early-pubertal boys. Exercise and calcium together resulted in a 2% greater increase in femur BMC than either factor alone and a 3% greater increase in BMC at the tibia-fibula compared with the placebo group. Increasing ...
David Valentin - - 2007
Because a lack of mechanical information favors the development of adipocytes at the expense of osteoblasts, we hypothesized that the peroxisome proliferator-activated receptor gamma (PPARgamma)-dependent balance between osteoblasts and adipocytes is affected by mechanical stimuli. We tested the robustness of this hypothesis in in vivo rodent osteogenic exercise, in vitro ...
Hruby Gregory W - - 2007
OBJECTIVE: To evaluate the association of variables of body habitus with direct measurements of ureteric length, as the correct choice of ureteric stent length might help to prevent complications and improve stent tolerance, and to date there are limited data correlating height or other body variables with ureteric length. PATIENTS ...
Bergeron E - - 2007
Bone morphogenetic proteins (BMPs) and 45S5 Bioglass microspheres (bioactive GM) can increase the differentiation of osteoblasts. Recombinant human BMP-2 (rhBMP-2) is presently the BMP most frequently used in delivery systems and it has already been used in clinical bone healing studies. We have developed a delivery system that combines a ...
Warden Stuart J - - 2007
Short-term exercise in growing rodents provided lifelong benefits to bone structure, strength, and fatigue resistance. Consequently, exercise when young may reduce the risk for fractures later in life, and the old exercise adage of "use it or lose it" may not be entirely applicable to the skeleton. INTRODUCTION: The growing ...
Wupperman Richard - - 2007
STUDY DESIGN: Two reviewers rated the 112 clinical articles, from January through June 2003, published in Spine using a level-of-evidence grading system. The ratings were compared to previously published ratings of 2 orthopedic journals with similar impact factors. OBJECTIVE: To compare Spine to other orthopedic journals using a level-of-evidence rating ...
Devlin Maureen J - - 2007
Although mechanical loading can stimulate cortical bone growth, little is known about how individual physiology affects this response. This study demonstrates that in vivo variation in estradiol (E2) level alters osteoblast sensitivity to exercise-induced strains, affecting cortical bone responses to mechanical loading. Subadult sheep were divided into treatment groups that ...
Kemmler Wolfgang - - 2007
The purpose of the study was to determine the effect of long-term exercise on coronary heart disease, osteoporotic risk factors, and physical fitness parameters in postmenopausal women. Forty early postmenopausal women (age 55.1 +/- 3.3 years) with no medication or illness affecting bone metabolism exercised (high impact aerobic, multilateral jumps, ...
Nickols-Richardson S M - - 2007
Women participated in 5 months of unilateral concentric (n = 37) or eccentric (n = 33) isokinetic resistance training of the legs and arms. Limb muscular strength increased as did total body, leg, and arm fat-free soft tissue mass, total body BMC, hip BMD, and forearm BMC and BMD. Isokinetic ...
Muto R - - 2007
Invariant mass spectra of e(+) e(-) pairs have been measured in 12 GeV p + A reactions to detect possible in-medium modification of vector mesons. Copper and carbon targets are used to study the nuclear-size dependence of e(+) e(-) invariant mass distributions. A significant excess on the low-mass side of ...
Wallace Joseph M - - 2007
Fracture risk and mechanical competence of bone are functions of bone mass and tissue quality, which in turn are dependent on the bone's mechanical environment. Male mice have a greater response to non-weight-bearing exercise than females, resulting in larger, stronger bones compared with control animals. The aim of this study ...
Herrmann Markus - - 2007
BACKGROUND: Stress fractures are frequent injuries among athletes. In vitro, decreases in pH stimulate osteoclasts and inhibit osteoblasts. We hypothesized that exercise-induced lactacidosis stimulates osteoclasts and reduces osteoblast activity in vivo. METHODS: A total of 32 volunteers (MA, male athletes; MCo, male controls; female athletes; and female controls) performed three ...
Heikkinen Riikka - - 2007
High acceleration levels (>4g) seen during impact exercises have been shown to increase bone mineral density (BMD) in premenopausal women. The aim of this study was to examine how the other acceleration signal characteristics, i.e. the slope, area and energy of the signal are related to changes in bone density, ...
Liu Kemin - - 2007
This study was designed to determine whether combined treatments with soybean isoflavone dosage and moderate exercise would exhibit synergistically effects on bone metabolism following the onset of menopause. Fifty 12 wk-old female Wistar rats were assigned to five groups: 1) Sham operated (Sham), 2) ovariectomized (OVX), 3) OVX received soybean ...
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