دانلود رایگان مقاله لاتین تخمین استحکام استخوان از سایت الزویر
عنوان فارسی مقاله:
تخمین استحکام استخوان نسبت به نیروی عکس العمل عمودی زمین با تبعیض زنان دونده با سابقه شکستگی استرس
عنوان انگلیسی مقاله:
Bone strength estimates relative to vertical ground reaction force discriminates women runners with stress fracture history
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Stress fracture is an overuse injury to bone tissue that occurs with repetitive loading and is thought to result from an imbalance between microdamage-driven bone remodeling and bone repair [16]. Because stress fracture healing typically takes 6–12 weeks or longer, depending on the fracture grade and site [31], this injury is a concern among athletes [27], particularly runners [25,37]. The highest incidence of stress fracture is reported in members of track and field teams with rates from 10 to 31% per year [11,23]. Some research suggests that the incidence in women runners is twice that in their male counterparts [3]. Due to the risk of stress fractures among highly active populations, as well as the costly nature of the injury in terms of recovery time, it is important to understand the factors that cause an individual to be at greater susceptibility [25,37]. These factors generally fall into two categories: factors that affect bone strength (bone mineral density, bone geometry, age, genetics, nutrition, endocrine and hormonal status, exercise or loading history, and bone disease), and factors that influence the mechanical load on bone (gait biomechanics, changes in loading intensity and frequency, training surface, footwear, and body size and composition) [5,22,41]. Numerous studies addressing stress fractures have focused on examining surrogates of bone strength – particularly bone mineral density (BMD) – to better understand stress fracture risk. The most widely utilized method of measuring BMD is through dual x-ray absorptiometry (DXA), which provides a two-dimensional or areal BMD (aBMD). Findings from cross sectional studies have yielded controversial results with some showing lower aBMD and some showing no difference or even higher aBMD in those with a history of stress fracture [4,8–10,13,14, 19,30,39]. There is evidence through both cross-sectional and prospective research suggesting that low aBMD, as a risk factor for stress fracture, may be more common in women than men [8,10]. In a prospective cohort study, female track and field athletes diagnosed with a stress fracture had lower aBMD of the lumbar spine compared to those who remained healthy [10]. Importantly, although aBMD was lower in women who sustained a stress fracture, it was higher than or similar to bone density of less active women. This implies that women at risk of stress fracture in this cohort would not be identified as high risk based on normative DXA values.
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کلمات کلیدی:
Stress fractures of the foot and ankle, part 1: biomechanics of bone ... link.springer.com/content/pdf/10.1007%2Fs00256-017-2640-7.pdf Feb 27, 2017 - Stress fractures subject to compressive forces are considered low-risk and are ... sents fracture of a weakened bone in response to relatively normal activity. .... transmission of ground-contact forces [13]. Cortical bone and ..... ground reaction force discriminates women runners with stress fracture history. [PDF]Are knee mechanics during early stance related to tibial stress fracture ... www.lbgmedical.com/.../Running/Stress-fractures-knee-mechanics-%20stiffness.pdf by CE Milner - 2007 - Cited by 89 - Related articles Methods. Twenty-three runners with a history of tibial stress fracture were investigated. They were ... Keywords: Ground reaction force; Kinetics; Kinematics; Female; Tibial shock. 1. ..... and shank angle at footstrike did not discriminate between ... Isokinetic analysis of ankle and ground reaction forces in runners and ... www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322012000900007 by NMS Luna - 2012 - Cited by 11 - Related articles Isokinetic analysis of ankle and ground reaction forces in runners and triathletes ... Stress fractures of the tibia are prominent among such injuries (3). ... a history of tibia stress fractures is greater than the force exerted by individuals without such .... The analyses did not discriminate between the limbs because no significant ... Kristin L Popp - Publications - The Academic Family Tree https://academictree.org/biomech/publications.php?pid=197743 Bone strength estimates relative to vertical ground reaction force discriminates women runners with stress fracture history. Bone. PMID 27729292 DOI: ... The Encyclopaedia of Sports Medicine: An IOC Medical Commission ... https://books.google.com/books?isbn=0470756853 Barbara L. Drinkwater - 2008 - Medical ... 590 rheumatoid arthritis, 219 rib stress fractures, 488, 489, 490 Richards, R., 437 ... haemolytic anaemia (runner's macrocytosis), 312 ground reaction force, 103, 103 ... 186 sex discrimination, 17, 343, 435 women athletes' reproductive health, ... 175 skin problems canoeing/kayaking, 610–11 cyclists, 544 history-taking for ... [PDF]Computer simulation of the effects of shoe cushioning on internal and ... https://sph.umd.edu/sites/default/files/files/5.pdf by RH Miller - 2009 - Cited by 14 - Related articles discriminated between runners with and without a history of tibial stress fracture (Milner et al. 2006a,b). These external loading variables, such as the ground reaction force (GRF), are often ... impact force had little effect on peak forces estimated at chronic running ... female subject (24 years, 1.66m, 58.2kg) was a former.
