Prevalence of and traits associated with low BMD among female adolescent runners.

Abstract:

PURPOSE:Identify the prevalence of and traits that may increase the risk of low bone mineral density (BMD) among 93 female adolescent competitive endurance runners. METHODS:Participants were 93 high school runners, ages 13-18 yr, from southern California. Eating attitudes and behaviors were assessed using the Eating Disorder Examination Questionnaire (EDE-Q). Menstrual and sports participation history were evaluated using an interviewer-assisted, self-report questionnaire. Bone mineral density (BMD) of the spine (L1-L4), total hip, and total body were measured by dual-energy x-ray absorptiometry. The -2 and -1 BMD age-matched, gender-specific z-score cutoffs were used to categorize girls as having low bone mass for age. RESULTS:Among the female runners, 11.8% and 28% met the -2 and -1 BMD z-score cutoffs, respectively, whereas 25.8% reported menstrual irregularity (MI). Total hip BMD, lumbar spine BMD, and lumbar spine BMD z-score were significantly lower in runners with MI after adjusting for body mass index (BMI) and lean tissue mass. Runners that participated in five or more compared with three seasons of endurance running exhibited a significantly lower total body and lumbar spine BMD z-score after adjusting for BMI, lean tissue mass, and number of menstrual cycles in the past year. Multiple regression analysis indicated that MI, participation in five or more seasons of endurance running, BMI, and lean tissue mass were independent predictors of low BMD. CONCLUSION:Female adolescent endurance runners may represent a population with an increased risk of low bone mass. Future studies are necessary to further understand the factors contributing to low bone mass in young runners and to identify behavioral strategies that will promote optimal bone mineral accumulation during the adolescent years.

journal_name

Med Sci Sports Exerc

authors

Barrack MT,Rauh MJ,Nichols JF

doi

10.1249/MSS.0b013e3181822ea0

subject

Has Abstract

pub_date

2008-12-01 00:00:00

pages

2015-21

issue

12

eissn

0195-9131

issn

1530-0315

journal_volume

40

pub_type

杂志文章
  • Etiologic factors associated with anterior knee pain in distance runners.

    abstract:PURPOSE:The objectives of this study were 1) to examine the differences between a noninjured (C) cohort of runners (N = 70) and runners afflicted with anterior knee pain (AKP) according to selected training, anthropometric, rearfoot motion, ground reaction force, and muscular strength and endurance variables; 2) to exp...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1097/00005768-200011000-00003

    authors: Duffey MJ,Martin DF,Cannon DW,Craven T,Messier SP

    更新日期:2000-11-01 00:00:00

  • No sex difference in body fat in response to supervised and measured exercise.

    abstract:UNLABELLED:It is often reported that females lose less body weight than males do in response to exercise. These differences are suggested to be a result of females exhibiting a stronger defense of body fat and a greater compensatory appetite response to exercise than males do. PURPOSE:This study aimed to compare the e...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,随机对照试验

    doi:10.1249/MSS.0b013e31826ced79

    authors: Caudwell P,Gibbons C,Hopkins M,King N,Finlayson G,Blundell J

    更新日期:2013-02-01 00:00:00

  • Mitochondria: biogenesis, structure, and function--symposium introduction.

    abstract::During the past three to four decades, a significant amount of data was collected to reinforce the notion that mitochondrial function is irrevocably linked to mitochondrial structure. Indeed, data from numerous studies have revealed several salient points of mitochondrial biology that include the following: 1). mitoch...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,评审

    doi:10.1097/00005768-200301000-00014

    authors: Turcotte LP

    更新日期:2003-01-01 00:00:00

  • Myocardial crypt in an asymptomatic young athlete: how to interpret?

    abstract::Myocardial crypts are extensions of blood signal penetrating the compact myocardium and are considered in literature as either a distinctive cardiac magnetic resonance (CMR) imaging marker for hypertrophic cardiomyopathy or as benign congenital malformations. What if CMR reveals a myocardial crypt in the presence of a...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0000000000000406

    authors: Neunhäuserer D,Ermolao A,Corbetti F,Niebauer J,Zaccaria M,Gasperetti A

    更新日期:2015-02-01 00:00:00

  • Exercise restores immune cell function in energy-restricted rats.

    abstract:OBJECTIVE:To evaluate the effect of chronic moderate-intensity exercise upon the alterations of immune system cell function induced by energy restriction. METHODS:Forty male Wistar rats were randomly assigned to the following groups: sedentary animals fed ad libitum (SF, N = 10) or submitted to energy restriction (SER...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/01.mss.0000147626.32295.38

    authors: Dos Santos Cunha WD,Giampietro MV,De Souza DF,Vaisberg M,Seelaender MC,Rosa LF

    更新日期:2004-12-01 00:00:00

  • Physically active academic lessons and time on task: the moderating effect of body mass index.

    abstract:UNLABELLED:Physically active classroom lessons have been found to increase on-task behavior in children. Given that physical activity has been associated with an increased time on task (TOT) and that overweight children take fewer steps than normal weight children do, it was expected that benefits of the physical activ...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0b013e3181a61495

    authors: Grieco LA,Jowers EM,Bartholomew JB

    更新日期:2009-10-01 00:00:00

  • How do endurance runners actually train? Relationship with competition performance.

    abstract:PURPOSE:To quantify the relationship between total training load and running performance during the most important competitions of the season (national cross-country championships, 4.175- and 10.130-km races). METHODS:Eight well-trained, subelite endurance runners (age (mean+/-SD): 23+/-2 yr; VO2max: 70.0+/-7.3 mL.kg....

    journal_title:Medicine and science in sports and exercise

    pub_type: 临床试验,杂志文章

    doi:10.1249/01.mss.0000155393.78744.86

    authors: Esteve-Lanao J,San Juan AF,Earnest CP,Foster C,Lucia A

    更新日期:2005-03-01 00:00:00

  • Does preseason screening for cardiac disease really work?: the British perspective.

    abstract::Sudden cardiac death is always a tragedy. Sudden death during sport is particularly poignant because people tend to associate sport with health and fitness. Both the public and the medical profession would like to prevent such events, and preparticipation medical screening is often promoted as one such method. When we...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,评审

    doi:10.1097/00005768-199810001-00002

    authors: MacAuley D

    更新日期:1998-10-01 00:00:00

  • Perception of chest pain during exercise testing in patients with coronary artery disease.

    abstract::Psychophysical scaling of symptoms or discomfort during exercise testing has evolved as an important adjunct to the study of therapeutic interventions in heart disease. One of the major shortcomings of clinical exercise testing, however, has been the assessment of chest pain. Although the presence and characteristics ...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,评审

    doi:

    authors: Myers JN

    更新日期:1994-09-01 00:00:00

  • Impact and overuse injuries in runners.

    abstract::Forces that are repeatedly applied to the body could lead to positive remodeling of a structure if the forces fall below the tensile limit of the structure and if sufficient time is provided between force applications. On the other hand, an overuse injury could result if there is inadequate rest time between applied f...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,评审

    doi:10.1249/01.mss.0000126803.66636.dd

    authors: Hreljac A

    更新日期:2004-05-01 00:00:00

  • Activity behaviors in schoolchildren and subsequent 5-yr change in blood pressure.

    abstract:PURPOSE:This study aimed to establish whether time spent in sport-related physical activities and sedentary behaviors (e.g., TV viewing, videogame usage, and homework) was prospectively associated with change in blood pressure (BP) for 5 yr. METHODS:Eight hundred and twenty-one students age 6 yr at baseline (397 girls...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0000000000000166

    authors: Gopinath B,Hardy LL,Kifley A,Baur LA,Mitchell P

    更新日期:2014-04-01 00:00:00

  • Isometric strength, sprint power, and aerobic power in individuals with a spinal cord injury.

    abstract::This study investigated in rather specific wheelchair tests the relationships among estimates of isometric upper-body strength (Fiso), sprint power (P30), aerobic power (VO2peak), and maximal power output (POaer) in a group of 44 men (age 34 +/- 12 yr) with longstanding spinal cord injuries ranging from C4/C5 to L5. F...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/00005768-199307000-00016

    authors: Janssen TW,van Oers CA,Hollander AP,Veeger HE,van der Woude LH

    更新日期:1993-07-01 00:00:00

  • Genome-wide linkage scan for physical activity levels in the Quebec Family study.

    abstract:PURPOSE AND METHODS:It is commonly recognized that there is familial aggregation for physical activity level. However, the genes and sequence variants responsible for the familial clustering have not been investigated. We performed a genome-wide linkage scan based on 432 markers typed in 767 subjects from 207 families ...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/01.MSS.0000078937.22939.7E

    authors: Simonen RL,Rankinen T,Perusse L,Rice T,Rao DC,Chagnon Y,Bouchard C,Quebec Family Study.

    更新日期:2003-08-01 00:00:00

  • Influence of cardiorespiratory fitness on lung cancer mortality.

    abstract:PURPOSE:Previous studies have suggested that higher levels of physical activity may lower lung cancer risk; however, few prospective studies have evaluated lung cancer mortality in relation to cardiorespiratory fitness (CRF), an objective marker of recent physical activity habits. METHODS:Thirty-eight thousand men, ag...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0b013e3181c47b65

    authors: Sui X,Lee DC,Matthews CE,Adams SA,Hébert JR,Church TS,Lee CD,Blair SN

    更新日期:2010-05-01 00:00:00

  • Advances in the understanding of knee ligament injury, repair, and rehabilitation.

    abstract::Knee injuries continue to present a complex set of clinical problems. The answers to these problems have recently been redefined by the application of sophisticated biomechanical research methods to the study of knee ligaments and joint function. This manuscript reviews contributions which our laboratory has made to t...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/00005768-198410000-00002

    authors: Noyes FR,Keller CS,Grood ES,Butler DL

    更新日期:1984-10-01 00:00:00

  • The physical condition of elderly women differing in habitual physical activity.

    abstract::In a cross-sectional study, 50 elderly women (age 71.5 +/- 4.2 yr, mean +/- SD) participated in a battery of tests assessing several aspects of physical fitness. The women were selected based on tertiles of habitual physical activity as determined by a validated questionnaire 10 months ago. The tests comprised the fol...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:

    authors: Voorrips LE,Lemmink KA,van Heuvelen MJ,Bult P,van Staveren WA

    更新日期:1993-10-01 00:00:00

  • Scientific bases for precompetition tapering strategies.

    abstract::The taper is a progressive nonlinear reduction of the training load during a variable period of time, in an attempt to reduce the physiological and psychological stress of daily training and optimize sports performance. The aim of the taper should be to minimize accumulated fatigue without compromising adaptations. Th...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,评审

    doi:10.1249/01.MSS.0000074448.73931.11

    authors: Mujika I,Padilla S

    更新日期:2003-07-01 00:00:00

  • Activity Levels for Four Years in a Cohort of Urban-Dwelling Adolescent Females.

    abstract:PURPOSE:Evidence suggests that female adolescents and those living in urban environments may have lower physical activity (PA) levels compared with their peers. Yet few studies report PA for urban adolescent females, and there is no consensus regarding potential causes for low PA in this subgroup. We examined PA levels...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0000000000001152

    authors: Rockette-Wagner B,Hipwell AE,Kriska AM,Storti KL,McTigue KM

    更新日期:2017-04-01 00:00:00

  • Insulin responsiveness in metabolic syndrome after eight weeks of cycle training.

    abstract:INTRODUCTION:Insulin resistance in obesity is decreased after successful diet and exercise. Aerobic exercise training alone was evaluated as an intervention in subjects with the metabolic syndrome. METHODS:Eighteen nondiabetic, sedentary subjects, 11 with the metabolic syndrome, participated in 8 wk of increasing inte...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0b013e31829a6ce8

    authors: Stuart CA,South MA,Lee ML,McCurry MP,Howell ME,Ramsey MW,Stone MH

    更新日期:2013-11-01 00:00:00

  • Attenuation of eccentric exercise-induced muscle damage by preconditioning exercises.

    abstract:PURPOSE:This study compared the effect of an initial exercise consisting of either low-intensity eccentric or maximal isometric contractions (ISOs) on protective effect against maximal eccentric contraction (MaxECC)-induced muscle damage. METHODS:Untrained young men were placed into one of five groups (n = 13 per grou...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0b013e31825f69f3

    authors: Chen TC,Chen HL,Pearce AJ,Nosaka K

    更新日期:2012-11-01 00:00:00

  • Effect of exercise training modality on C-reactive protein in type 2 diabetes.

    abstract:PURPOSE:Type 2 diabetes is associated with increased risk of cardiovascular disease and elevated C-reactive protein (CRP) levels. Aerobic exercise training has been shown to improve CRP; however, there are limited data evaluating the effect of other exercise training modalities (aerobic, resistance, or combination trai...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,随机对照试验

    doi:10.1249/MSS.0b013e31824526cc

    authors: Swift DL,Johannsen NM,Earnest CP,Blair SN,Church TS

    更新日期:2012-06-01 00:00:00

  • Eccentric muscle action increases site-specific osteogenic response.

    abstract:PURPOSE:Strain magnitude is known to be a primary determinant of the osteogenic response to loading. However, whether bone adaptation to muscle loading is determined primarily by load magnitude is unclear. The purpose of this study was to determine the contribution of load magnitude from muscle action on the site-speci...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1097/00005768-199909000-00009

    authors: Hawkins SA,Schroeder ET,Wiswell RA,Jaque SV,Marcell TJ,Costa K

    更新日期:1999-09-01 00:00:00

  • Interval Exercise Lowers Circulating CD105 Extracellular Vesicles in Prediabetes.

    abstract:BACKGROUND:Extracellular vesicles (EV) are purported to mediate type 2 diabetes and CVD risk and development. Physical activity and a balanced diet reduce disease risk, but no study has tested the hypothesis that short-term interval (INT) training would reduce EV compared with continuous (CONT) exercise in adults with ...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0000000000002185

    authors: Eichner NZM,Gilbertson NM,Heiston EM,Musante L,LA Salvia S,Weltman A,Erdbrugger U,Malin SK

    更新日期:2020-03-01 00:00:00

  • Interaction between the AMP-activated protein kinase and mTOR signaling pathways.

    abstract::The AMP-activated protein kinase (AMPK) has been referred to as an "energy sensor" because it binds to and is regulated by both AMP and ATP. The binding of AMP to AMPK allows it to be phosphorylated by upstream kinases, resulting in its activation. In contrast, the binding of ATP prevents its activation. AMPK regulate...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章,评审

    doi:10.1249/01.mss.0000233796.16411.13

    authors: Kimball SR

    更新日期:2006-11-01 00:00:00

  • Normative data and predictors of leg muscle function and postural control in children.

    abstract:INTRODUCTION:At the present there are limited tools available to measure muscle function in young children. Ground reaction force plates measure lower-body function and postural control in older children and adults. The purpose of this study was threefold: 1) develop normative data for evaluating global muscle developm...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0000000000000340

    authors: Hazell TJ,Sharma AK,Vanstone CA,Gagnon I,Pham TT,Finch SL,Weiler HA,Rodd CJ

    更新日期:2014-11-01 00:00:00

  • Associations of body size and composition with physical activity in adolescent girls.

    abstract:PURPOSE:To examine whether components of body composition (size, fat mass, and fat-free mass) were related to physical activity. METHODS:A random sample of 60 eligible sixth grade girls at each of 36 schools (six schools per region and six regions in total sample); complete measurements on 1,553 girls. Physical activi...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/01.mss.0000222846.27380.61

    authors: Lohman TG,Ring K,Schmitz KH,Treuth MS,Loftin M,Yang S,Sothern M,Going S

    更新日期:2006-06-01 00:00:00

  • Pelvic stabilization and semisitting position increase the specificity of back exercises.

    abstract:PURPOSE:To examine the effect of pelvic stabilization and two lower-limb configurations on the EMG activity of back and hip extensor muscles during a dynamic back extension exercise on a machine and to compare them between sexes. METHODS:Twenty-two healthy volunteers (11 men and 11 women) performed five trunk flexion-...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0b013e318188446a

    authors: da Silva RA,Larivière C,Arsenault AB,Nadeau S,Plamondon A

    更新日期:2009-02-01 00:00:00

  • The mechanical efficiency of front crawl swimming.

    abstract::In this study the gross efficiency of swimming was determined in a group of male (N = 6) and female (N = 4) competitive swimmers. The gross efficiency is defined as the ratio of the power output (W) to the power input (W). In a range of swimming velocities (0.95-1.6 m.s-1), the power input (rate of energy expenditure,...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:

    authors: Toussaint HM,Knops W,De Groot G,Hollander AP

    更新日期:1990-06-01 00:00:00

  • Socioeconomic effects on meeting physical activity guidelines: comparisons among 32 countries.

    abstract:PURPOSE:This study examined the relationship between age and gender with physical activity (PA) and how meeting of PA guidelines (PAGL) is related to socioeconomic status (SES) and sedentary behaviors (SB). METHODS:Data were collected from 11-, 13-, and 15-yr-old students in 32 countries participating in the Health Be...

    journal_title:Medicine and science in sports and exercise

    pub_type: 杂志文章

    doi:10.1249/MSS.0b013e3181917722

    authors: Borraccino A,Lemma P,Iannotti RJ,Zambon A,Dalmasso P,Lazzeri G,Giacchi M,Cavallo F

    更新日期:2009-04-01 00:00:00

  • Reduced exercise time in competitive simulations consequent to low level ozone exposure.

    abstract::Ten highly trained endurance athletes were studied to determine the effects of exposure to low ozone (O3) concentrations on simulated competitive endurance performance and associated physiological and subjective symptom responses. Each subject was randomly exposed to filtered air (FA), and to 0.12, 0.18, and 0.24 ppm ...

    journal_title:Medicine and science in sports and exercise

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:

    authors: Schelegle ES,Adams WC

    更新日期:1986-08-01 00:00:00