Abstract：
:The purpose of this study was to analyze the composition of 103 dietary supplements bought on the internet. The supplements were dispatched in four different categories according to their announced contents [creatine, prohormones, "mental enhancers" and branched chain amino acids (BCAA)]. All the supplements were screened for the presence of stimulants and main anabolic steroids parent compounds. At the same time, the research was focused on the precursors and metabolites of testosterone and nandrolone. The study pointed out three products containing an anabolic steroid, metandienone, in a very high amount. The ingestion of such products induced a high quantity of metandienone metabolites in urines that would be considered as a positive antidoping test. The results have also shown that one creatine product and three "mental enhancers" contained traces of hormones or prohormones not claimed on the labels and 14 prohormone products contained substances other than those indicated by the manufacturer. The oral intake of the creatine product revealed the presence of the two main nandrolone metabolites (19-norandrosterone and 19-noretiocholanolone) in urine.
journal_name
Scand J Med Sci Sportsjournal_title
Scandinavian journal of medicine & science in sportsauthors
Baume N,Mahler N,Kamber M,Mangin P,Saugy Mdoi
10.1111/j.1600-0838.2005.00442.xsubject
Has Abstractpub_date
2006-02-01 00:00:00pages
41-8issue
1eissn
0905-7188issn
1600-0838pii
SMS442journal_volume
16pub_type
杂志文章abstract：:The objective of this study is to investigate the potentially opposing influence of qualitative and quantitative muscular adaptations in response to high-intensity resistance training on contractile rate of force development (RFD) in the early (<100 ms) and later phases (>200 ms) of rising muscle force. Fifteen health...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2009.00933.x
更新日期：2010-02-01 00:00:00
abstract：INTRODUCTION:Low back pain (LBP) defined as ache or pain in the lowest part of the back is a common experience among people all over the world. The lifetime prevalence is reported to be as high as 84%, and the prevalence of LBP seems to be almost the same among adolescents as among adults. The risk for having LBP later...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13335
更新日期：2019-03-01 00:00:00
abstract：:Overarm movements are essential skills in many different sport games; however, the adaptations to different sports are not well understood. The aim of the study was to analyze upper-body kinematics in the team-handball throw, tennis serve, and volleyball spike, and to calculate differences in the proximal-to-distal se...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2012.01503.x
更新日期：2014-04-01 00:00:00
abstract：:Breathing rates during physical exercise suggest that, during these conditions, the high-frequency (HF) bandwidth of heart rate variability (HRV) analysis should be extended beyond conventional guidelines. However, there has been little investigation of the most appropriate choice of HF bandwidth during exercise. HRV ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2006.00616.x
更新日期：2007-12-01 00:00:00
abstract：:The molecular mechanisms involved in the aging of collagen and consequent increase in mechanical strength and stiffness occur in a series of enzymic and non-enzymic intermolecular cross-links. The enzymic mechanism involves divalent aldimine intermolecular cross-links derived from the reaction of aldehydes which then ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2005.00464.x
更新日期：2005-08-01 00:00:00
abstract：:The objective of this study was to compare incidences and patterns of injury for female and male elite teams when playing football on artificial turf and grass. Twenty teams (15 male, 5 female) playing home matches on third-generation artificial turf were followed prospectively; their injury risk when playing on artif...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2010.01118.x
更新日期：2011-12-01 00:00:00
abstract：:We use a multivariate multilevel model to study the links between physical fitness (PF) and gross motor coordination (GMC) and investigate the influence of predictors affecting their levels across age. We sampled 7918 Peruvians, aged 6-15 years, from sea-level, Amazon region and high-altitude. Composite markers of GMC...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13807
更新日期：2020-12-01 00:00:00
abstract：PURPOSE:While kicking in Rugby Union can be influential to match outcome, the epidemiology of kicking injuries remains unknown. This study therefore aimed to investigate the epidemiology of injuries attributed to kicking in professional rugby, including playing position-specific effects and differences in kicking volum...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13737
更新日期：2020-09-01 00:00:00
abstract：OBJECTIVES:To determine the incidence of anterior cruciate ligament (ACL) injuries in the general population; the pathology associated with a knee sprain verified by magnetic resonance imaging (MRI); and the agreement between clinical findings and MRI. MATERIAL AND METHODS:Inclusion criterion was an acute rotational t...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2006.00559.x
更新日期：2007-04-01 00:00:00
abstract：:Few studies have examined the possibility that pre- and post-natal factors may be non-linearly associated with later physical activity. We used data from the Norwegian Mother, Father and Child Cohort study (MoBa) and the Medical Birth Registry of Norway (MBRN), including 48 672 children with available data on leisure ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13781
更新日期：2020-11-01 00:00:00
abstract：:There is an interest in identifying the intrinsic risk factors, including altered musculotendinous flexibility, that may be associated with musculotendinous injuries. We have recently shown that a sequence variant, namely the BstUI restriction fragment length polymorphism (RFLP), within the COL5A1 gene is associated w...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2009.00915.x
更新日期：2009-12-01 00:00:00
abstract：:This study analyzed the impact of performing four consecutive football matches separated by 48-72 hours during a FIFA tournament on physical load, technical performance and plasma markers of redox state, muscle damage and inflammation in elite female players. Forty-eight players from three national teams were evaluate...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13878
更新日期：2020-12-29 00:00:00
abstract：:'Flexibility' tests are traditionally performed voluntarily-relaxed by rotating a joint slowly, however functional activities are performed rapidly with voluntary/reflexive muscle activity. Here we describe the reliabilities and differences in maximum ankle range of motion (ROMmax ) and plantar flexor mechanical prope...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13920
更新日期：2021-01-16 00:00:00
abstract：:The purpose of this study was to evaluate activity profile, aerobic load, and player involvement in two game formats of recreational and elite youth football for two age groups. A total of 152 youth players participated, with 45 U10 players playing 5v5 and 8v8 games, and 41 U13 players playing 8v8 and 11v11 (20 min) g...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12255
更新日期：2014-08-01 00:00:00
abstract：:Fatigue-related mechanisms induced by low-intensity prolonged contraction in lower limb muscles are currently unknown. This study investigated central fatigue kinetics in the knee extensors during a low-intensity sustained isometric contraction. Eleven subjects sustained a 10% maximal voluntary contraction (MVC) until...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13815
更新日期：2020-12-01 00:00:00
abstract：:Inconsistencies in community size effects found between and within countries (Baker et al Eur J Sport Sci. 2009;9:329-339; Bruner et al J Sports Sci. 2011;29:1337-1344; Wattie et al J Sports Sci. 2018;36:436-444) suggest population size may not be an accurate predictor of athlete development and that other proxies of ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13247
更新日期：2018-11-01 00:00:00
abstract：:Exercise is one of the most widely used non-pharmacological strategies to prevent bone resorption during menopause. Given the detrimental consequences of bone demineralization, the purpose of this study was to examine the effects of prescribing different exercise volumes on bone mineral density and content in previous...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
doi：10.1111/sms.13443
更新日期：2019-08-01 00:00:00
abstract：:The peak fat oxidation rate (PFO) and the exercise intensity that elicits PFO (Fatmax ) are associated with endurance performance during exercise primarily involving lower body musculature, but it remains elusive whether these associations are present during predominant upper body exercise. The aim was to investigate ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13769
更新日期：2020-11-01 00:00:00
abstract：:The aim of the study was to estimate active knee flexion and active knee extension in athletes and to investigate the potential association of each to different types of sports activity. Active knee extension and active knee flexion was measured in 339 athletes. Active knee extension was significantly higher in women ...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.1999.tb00212.x
更新日期：1999-04-01 00:00:00
abstract：:The aim of the study was to describe the levels and to create reference values of cardiorespiratory fitness, expressed as maximal oxygen consumption (VO(2max) ), maximal metabolic equivalents (METs) and maximal workload in aging men and women. We measured VO(2max) directly by a breath-by-breath method during a maximal...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1600-0838.2010.01127.x
更新日期：2011-10-01 00:00:00
abstract：:The purpose of this study was to develop a grounded theory of the process of inspirational coach leadership in sport. A Straussian grounded theory methodology was used. Semi-structured interviews and focus groups were conducted with athletes (n = 22) and coaches (n = 15). Data were analyzed through a process of open a...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13513
更新日期：2019-11-01 00:00:00
abstract：:Sports and physical activity are becoming more important and more emphasized in the lives of the average person as the health benefits of maintaining an active lifestyle are recognized. In the past most people were primarily active in sports during their time in school. The trend is for more people to continue vigorou...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.1997.tb00125.x
更新日期：1997-04-01 00:00:00
abstract：:Considering their potential relevance for low-back pain, we investigated trunk muscle strength, sagittal lumbo-pelvic alignment while standing and lumbo-pelvic ratio during trunk flexion in adolescent athletes with regard to the effects of age and sex. Twenty-two early adolescent (EA: 13-15 years, 10 females) and 28 l...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.13503
更新日期：2019-11-01 00:00:00
abstract：:Marathon runners are exposed to multiple thrombogenic risk factors including dehydration and hemoconcentration, injury and inflammation, long-distance travel between events, and contraceptive usage. However, despite awareness about thromboembolism and several case reports detailing life-threatening hypercoagulopathies...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12262
更新日期：2015-10-01 00:00:00
abstract：:This study examined motivation variables, self-determination and self-schema, in relation to physical activity, among psychiatric patients with experience with physical activity as part of their treatment. Participants were patients (N=109) from 15 psychiatric hospitals or day-care institutions. Data were collected by...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2005.00514.x
更新日期：2006-12-01 00:00:00
abstract：:Revision anterior cruciate ligament surgery has become a more commonly performed operation. Reasons for this are an increased number of first-time operations, some with technical faults. Patients can also sustain a new injury severe enough to rupture their reconstructed ligament. Results of the revision operations are...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,评审
doi：
更新日期：2001-06-01 00:00:00
abstract：:The aim of this study was to test the hypothesis that, in comparison with standard postures, aero posture (AP) would modify the coordination of lower limb muscles during pedalling and consequently would influence the pedal force production. Twelve triathletes were asked to pedal at an intensity near the ventilatory th...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/j.1600-0838.2007.00765.x
更新日期：2009-02-01 00:00:00
abstract：:The aims were to examine the percentage of female elite athletes and controls reporting sexual harassment and abuse (SHAB), and whether a higher percentage of female athletes with eating disorders (ED) had experienced SHAB. A questionnaire was administered to the total population of female elite athletes (n = 660) and...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 临床试验,杂志文章
doi：10.1034/j.1600-0838.2003.00295.x
更新日期：2003-10-01 00:00:00
abstract：:Skeletal muscle responds to endurance exercise with an improvement of biochemical pathways that support substrate supply and oxygen-dependent metabolism. This is reflected by enhanced expression of associated factors after exercise and is specifically modulated by tissue perfusion and oxygenation. We hypothesized that...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
doi：10.1111/sms.12572
更新日期：2016-10-01 00:00:00
abstract：BACKGROUND:High volume injection (HVI) shows promising results in the treatment of chronic midportion Achilles tendinopathy (AT). HVI consists of a large volume of saline with a small amount of corticosteroid and local anesthetic. OBJECTIVE:To determine the effect of corticosteroid in HVI in AT. METHODS:A total of 28...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
doi：10.1111/sms.13450
更新日期：2019-08-01 00:00:00
