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1.
Int J Sport Nutr Exerc Metab ; 31(5): 427-437, 2021 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-34284349

RESUMEN

The Low Energy Availability in Females Questionnaire (LEAF-Q) was validated to identify risk of the female athlete triad (triad) in female endurance athletes. This study explored the ability of the LEAF-Q to detect conditions related to low energy availability (LEA) in a mixed sport cohort of female athletes. Data included the LEAF-Q, SCOFF Questionnaire for disordered eating, dual-energy X-ray absorptiometry-derived body composition and bone mineral density, Mini International Neuropsychiatric Interview, blood pressure, and blood metabolic and reproductive hormones. Participants were grouped according to LEAF-Q score (≥8 or <8), and a comparison of means was undertaken. Sensitivity, specificity, and predictive values of the overall score and subscale scores were calculated in relation to the triad and biomarkers relevant to LEA. Fisher's exact test explored differences in prevalence of these conditions between groups. Seventy-five athletes (18-32 years) participated. Mean LEAF-Q score was 8.0 ± 4.2 (55% scored ≥8). Injury and menstrual function subscale scores identified low bone mineral density (100% sensitivity, 95% confidence interval [15.8%, 100%]) and menstrual dysfunction (80.0% sensitivity, 95% confidence interval [28.4%, 99.5%]), respectively. The gastrointestinal subscale did not detect surrogate markers of LEA. LEAF-Q score cannot be used to classify athletes as "high risk" of conditions related to LEA, nor can it be used as a surrogate diagnostic tool for LEA given the low specificity identified. Our study supports its use as a screening tool to rule out risk of LEA-related conditions or to create selective low-risk groups that do not need management as there were generally high negative predictive values (range 76.5-100%) for conditions related to LEA.


Asunto(s)
Metabolismo Energético , Síndrome de la Tríada de la Atleta Femenina/diagnóstico , Resistencia Física , Adolescente , Adulto , Biomarcadores , Femenino , Humanos , Deportes , Encuestas y Cuestionarios , Adulto Joven
2.
Br J Sports Med ; 54(21): 1288-1293, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32586943

RESUMEN

AIM: To report the epidemiology of injury and illness in elite rowers over eight seasons (two Olympiads). METHODS: All athletes selected to the Australian Rowing Team between 2009 and 2016 were monitored prospectively under surveillance for injury and illness. The incidence and burden of injury and illness were calculated per 1000 athlete days (ADs). The body area, mechanism and type of all injuries were recorded and followed until the resumption of full training. We used interrupted time series analyses to examine the association between fixed and dynamic ergometer testing on rowers' injury rates. Time lost from illness was also recorded. RESULTS: All 153 rowers selected over eight seasons were observed for 48 611 AD. 270 injuries occurred with an incidence of 4.1-6.4 injuries per 1000 AD. Training days lost totalled 4522 (9.2% AD). The most frequent area injured was the lumbar region (84 cases, 1.7% AD) but the greatest burden was from chest wall injuries (64 cases, 2.6% AD.) Overuse injuries (n=224, 83%) were more frequent than acute injuries (n=42, 15%). The most common activity at the time of injury was on-water rowing training (n=191, 68). Female rowers were at 1.4 times the relative risk of chest wall injuries than male rowers; they had half the relative risk of lumbar injuries of male rowers. The implementation of a dynamic ergometers testing policy (Concept II on sliders) was positively associated with a lower incidence and burden of low back injury compared with fixed ergometers (Concept II). Illness accounted for the greatest number of case presentations (128, 32.2% cases, 1.2% AD). CONCLUSIONS: Chest wall and lumbar injuries caused training time loss. Policy decisions regarding ergometer testing modality were associated with lumbar injury rates. As in many sports, illness burden has been under-recognised in elite Australian rowers.


Asunto(s)
Traumatismos en Atletas/epidemiología , Deportes Acuáticos/lesiones , Australia/epidemiología , Trastornos de Traumas Acumulados/epidemiología , Prueba de Esfuerzo , Femenino , Traumatismos del Antebrazo/epidemiología , Humanos , Incidencia , Traumatismos de la Rodilla/epidemiología , Estudios Longitudinales , Dolor de la Región Lumbar/epidemiología , Región Lumbosacra/lesiones , Masculino , Dolor/epidemiología , Estudios Prospectivos , Factores de Riesgo , Factores Sexuales , Pared Torácica/lesiones
3.
J Sci Med Sport ; 23(4): 322-328, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31784237

RESUMEN

OBJECTIVE: The use of intravenous fluids in out-of-hospital settings has evolved from the practices used by military and emergency response teams. When used in the elite sporting environment, IV fluid use must comply with the World Anti-Doping Code. Uncertainty can arise as clinicians seek to balance the appropriate use of IV fluids in delivering athlete care against the need for World Anti-Doping Code compliance. DESIGN AND METHOD: This position statement reviews the current literature and incorporates clinical experiences to present best-practice recommendations on the clinical use of Intravenous fluids in the elite sport environment, framing recommendations in the context of the World Anti-Doping Code. RESULTS AND CONCLUSION: The World Anti-Doping Code restricts the use of Intravenous fluids in athletes under certain conditions. This report takes into account the World Anti-Doping Code and the risks of Intravenous fluid administration to provide guidelines around the judicious use of IV fluids for: 1. Treatment of severe dehydration in an athlete, 2. Management of exertional heat illness in an athlete, 3. Hypovolaemia because of trauma in sport, 4. Administering medications.


Asunto(s)
Sustitutos Sanguíneos/administración & dosificación , Coloides/administración & dosificación , Soluciones Cristaloides/administración & dosificación , Doping en los Deportes/prevención & control , Fluidoterapia , Deportes , Australia , Humanos , Infusiones Intravenosas
4.
Med Sci Sports Exerc ; 50(8): 1669-1678, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29538179

RESUMEN

PURPOSE: Iron is integral for erythropoietic adaptation to hypoxia, yet the importance of supplementary iron compared with existing stores is poorly understood. The aim of the present study was to compare the magnitude of the hemoglobin mass (Hbmass) in response to altitude in athletes with intravenous (IV), oral, or placebo iron supplementation. METHODS: Thirty-four, nonanemic, endurance-trained athletes completed 3 wk of simulated altitude (3000 m, 14 h·d), receiving two to three bolus iron injections (ferric carboxymaltose), daily oral iron supplementation (ferrous sulfate), or a placebo, commencing 2 wk before and throughout altitude exposure. Hbmass and markers of iron regulation were assessed at baseline (day -14), immediately before (day 0), weekly during (days 8 and 15), and immediately, 1, 3, and 6 wk after (days 22, 28, 42, and 63) the completion of altitude exposure. RESULTS: Hbmass significantly increased after altitude exposure in athletes with IV (mean % [90% confidence interval (CI)], 3.7% [2.8-4.7]) and oral (3.2% [2.2-4.2]) supplementation and remained elevated at 7 d postaltitude in oral (2.9% [1.5-4.3]) and 21 d after in IV (3.0% [1.5-4.6]) supplementation. Hbmass was not significantly higher than baseline at any time point in placebo. CONCLUSIONS: Iron supplementation appears necessary for optimal erythropoietic adaptation to altitude exposure. IV iron supplementation during 3 wk of simulated live high-train low altitude training offered no additional benefit in terms of the magnitude of the erythropoietic response for nonanemic endurance athletes compared with oral supplementation.


Asunto(s)
Adaptación Fisiológica , Altitud , Eritropoyetina/metabolismo , Compuestos Férricos/administración & dosificación , Compuestos Ferrosos/administración & dosificación , Hemoglobinas/metabolismo , Hipoxia/fisiopatología , Maltosa/análogos & derivados , Administración Intravenosa , Administración Oral , Adulto , Suplementos Dietéticos , Femenino , Humanos , Hipoxia/sangre , Masculino , Maltosa/administración & dosificación , Acondicionamiento Físico Humano , Resistencia Física/fisiología , Adulto Joven
5.
Drug Test Anal ; 10(4): 731-741, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28929623

RESUMEN

The integrity of the athlete biological passport (ABP) is underpinned by understanding normal fluctuations of its biomarkers to environmental or medical conditions, for example, altitude training or iron deficiency. The combined impact of altitude and iron supplementation on the ABP was evaluated in endurance-trained athletes (n = 34) undertaking 3 weeks of simulated live-high: train-low (14 h.d-1 , 3000 m). Athletes received either oral, intravenous (IV) or placebo iron supplementation, commencing 2 weeks prior and continuing throughout hypoxic exposure. Venous blood was sampled twice prior, weekly during, and up to 6 weeks after altitude. Individual ABP thresholds for haemoglobin concentration ([Hb]), reticulocyte percentage (%retic), and OFF score were calculated using the adaptive model and assessed at 99% and 99.9% specificity. Eleven athletes returned values outside of the calculated reference ranges at 99%, with 8 at 99.9%. The percentage of athletes exceeding the thresholds in each group was similar, but IV returned the most individual occurrences. A similar frequency of abnormalities occurred across the 3 biomarkers, with abnormal [Hb] and OFF score values arising mainly during-, and %retic values mainly post- altitude. Removing samples collected during altitude from the model resulted in 10 athletes returning abnormal values at 99% specificity, 2 of whom had not triggered the model previously. In summary, the abnormalities observed in response to iron supplementation and hypoxia were not systematic and mostly in line with expected physiological adaptations. They do not represent a uniform weakness in the ABP. Nevertheless, altitude training and iron supplementation should be carefully considered by experts evaluating abnormal ABP profiles.


Asunto(s)
Doping en los Deportes , Compuestos Férricos/administración & dosificación , Hemoglobinas/análisis , Hipoxia/sangre , Hierro/administración & dosificación , Maltosa/análogos & derivados , Detección de Abuso de Sustancias , Adulto , Altitud , Atletas , Biomarcadores/sangre , Suplementos Dietéticos , Eritropoyesis , Femenino , Humanos , Masculino , Maltosa/administración & dosificación , Reticulocitos/citología , Detección de Abuso de Sustancias/métodos , Adulto Joven
6.
Br J Sports Med ; 49(12): 768-74, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26031643

RESUMEN

BACKGROUND: Heterogeneous taxonomy of groin injuries in athletes adds confusion to this complicated area. AIM: The 'Doha agreement meeting on terminology and definitions in groin pain in athletes' was convened to attempt to resolve this problem. Our aim was to agree on a standard terminology, along with accompanying definitions. METHODS: A one-day agreement meeting was held on 4 November 2014. Twenty-four international experts from 14 different countries participated. Systematic reviews were performed to give an up-to-date synthesis of the current evidence on major topics concerning groin pain in athletes. All members participated in a Delphi questionnaire prior to the meeting. RESULTS: Unanimous agreement was reached on the following terminology. The classification system has three major subheadings of groin pain in athletes: 1. Defined clinical entities for groin pain: Adductor-related, iliopsoas-related, inguinal-related and pubic-related groin pain. 2. Hip-related groin pain. 3. Other causes of groin pain in athletes. The definitions are included in this paper. CONCLUSIONS: The Doha agreement meeting on terminology and definitions in groin pain in athletes reached a consensus on a clinically based taxonomy using three major categories. These definitions and terminology are based on history and physical examination to categorise athletes, making it simple and suitable for both clinical practice and research.


Asunto(s)
Dolor Abdominal/etiología , Traumatismos en Atletas/etiología , Ingle/lesiones , Deportes/fisiología , Terminología como Asunto , Traumatismos en Atletas/prevención & control , Traumatismos en Atletas/terapia , Consenso , Diagnóstico por Imagen , Femenino , Pinzamiento Femoroacetabular/rehabilitación , Pinzamiento Femoroacetabular/cirugía , Predicción , Lesiones de la Cadera/etiología , Humanos , Masculino , Anamnesis/métodos , Evaluación del Resultado de la Atención al Paciente , Examen Físico/métodos , Factores de Riesgo
7.
PLoS One ; 9(9): e108042, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25247929

RESUMEN

PURPOSE: To determine the effect of intravenous iron supplementation on performance, fatigue and overall mood in runners without clinical iron deficiency. METHODS: Fourteen distance runners with serum ferritin 30-100 µg · L(-1) were randomly assigned to receive three blinded injections of intravenous ferric-carboxymaltose (2 ml, 100 mg, IRON) or normal saline (PLACEBO) over four weeks (weeks 0, 2, 4). Athletes performed a 3,000 m time trial and 10 × 400 m monitored training session on consecutive days at week 0 and again following each injection. Hemoglobin mass (Hbmass) was assessed via carbon monoxide rebreathing at weeks 0 and 6. Fatigue and mood were determined bi-weekly until week 6 via Total Fatigue Score (TFS) and Total Mood Disturbance (TMD) using the Brief Fatigue Inventory and Brunel Mood Scale. Data were analyzed using magnitude-based inferences, based on the unequal variances t-statistic and Cohen's Effect sizes (ES). RESULTS: Serum ferritin increased in IRON only (Week 0: 62.8 ± 21.9, Week 4: 128.1 ± 46.6 µg · L(-1); p = 0.002) and remained elevated two weeks after the final injection (127.0 ± 66.3 µg · L(-1), p = 0.01), without significant changes in Hbmass. Supplementation had a moderate effect on TMD of IRON (ES -0.77) with scores at week 6 lower than PLACEBO (ES -1.58, p = 0.02). Similarly, at week 6, TFS was significantly improved in IRON vs. PLACEBO (ES -1.54, p = 0.05). There were no significant improvements in 3,000 m time in either group (Week 0 vs. Week 4; Iron: 625.6 ± 55.5 s vs. 625.4 ± 52.7 s; PLACEBO: 624.8 ± 47.2 s vs. 639.1 ± 59.7 s); but IRON reduced their average time for the 10 × 400 m training session at week 2 (Week 0: 78.0 ± 6.6 s, Week 2: 77.2 ± 6.3; ES-0.20, p = 0.004). CONCLUSION: During 6 weeks of training, intravenous iron supplementation improved perceived fatigue and mood of trained athletes with no clinical iron deficiency, without concurrent improvements in oxygen transport capacity or performance.


Asunto(s)
Fatiga/tratamiento farmacológico , Compuestos Férricos/uso terapéutico , Hemoglobinas/análisis , Maltosa/análogos & derivados , Trastornos del Humor/tratamiento farmacológico , Carrera/fisiología , Adolescente , Adulto , Fatiga/sangre , Fatiga/fisiopatología , Femenino , Compuestos Férricos/farmacología , Ferritinas/sangre , Humanos , Inyecciones Intravenosas , Masculino , Maltosa/farmacología , Maltosa/uso terapéutico , Trastornos del Humor/sangre , Trastornos del Humor/fisiopatología , Escalas de Valoración Psiquiátrica , Resultado del Tratamiento , Adulto Joven
8.
Clin J Sport Med ; 18(2): 159-61, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18332692

RESUMEN

OBJECTIVE: Vitamin D plays an important role in calcium and bone metabolism. In Australia it has been assumed that all young athletes have good vitamin D levels. A survey of females in an elite gymnastics program was undertaken to determine their vitamin D and dietary calcium status. DESIGN: Cross-sectional survey. SETTING: Females in an elite gymnastics program at the Australian Institute of Sport. PARTICIPANTS AND OUTCOME MEASURES: Eighteen female gymnasts aged 10-17 years were assessed for vitamin D status (serum 25[OH]D) and dietary calcium intake. RESULTS: Fifteen were found to have levels below current recommended guidelines for optimal bone health (<75 nmol/L). Six had vitamin D levels below 50 nmol/L. Thirteen of the gymnasts also had daily dietary calcium intakes below the daily recommended intake for their age. CONCLUSIONS: Gymnasts and possibly other indoor athletes should be carefully reviewed for vitamin D and calcium status.


Asunto(s)
Gimnasia/fisiología , Vitamina D/sangre , Adolescente , Australia , Calcio de la Dieta , Niño , Estudios Transversales , Encuestas sobre Dietas , Femenino , Fracturas por Estrés/fisiopatología , Fracturas por Estrés/prevención & control , Humanos , Estado Nutricional
10.
J Sci Med Sport ; 10(1): 59-65, 2007 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16787761

RESUMEN

Anecdotally many athletes use non-steroidal anti-inflammatory gels during competition to allow continued participation. To determine if this clinical practice is useful a randomised placebo-controlled study was conducted at the 5-day 2004 Red Cross Murray River Marathon. Forty-two kayakers presented with wrist extensor tenosynovitis while competing in the single and double kayak events. All subjects received standard treatment of ice, stretches and massage for wrist tenosynovitis before being randomised into a placebo or 1% diclofenac gel group. Evaluation was done by using a visual analogue scale (0-10) for pain and by clinical grading (0-3). The main outcome measurements were reduction in pain and clinical grading, the requirement for a rescue medication (paracetamol or diclofenac tablets) and effect on performance times. Both groups had similar pain scores and clinical grading on the first and fifth days of pain. On the second to fourth days of pain there was clearly no benefit and possibly a detrimental effect on pain with diclofenac gel relative to placebo. However, diclofenac tablets were possibly beneficial for pain relative to paracetamol tablets. The effects of pain and the various treatments on performance time were either trivial (<0.5%) or small, but none was particularly clear. We conclude that standard treatment appears to be sufficient for the management of wrist extensor tenosynovitis during competition.


Asunto(s)
Antiinflamatorios no Esteroideos/uso terapéutico , Diclofenaco/uso terapéutico , Deportes/fisiología , Tenosinovitis/tratamiento farmacológico , Articulación de la Muñeca/fisiopatología , Acetaminofén/uso terapéutico , Administración Oral , Administración Tópica , Adulto , Analgésicos no Narcóticos/uso terapéutico , Método Doble Ciego , Femenino , Geles , Humanos , Masculino , Dimensión del Dolor , Tenosinovitis/fisiopatología , Resultado del Tratamiento
11.
Clin J Sport Med ; 16(2): 117-22, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16603880

RESUMEN

OBJECTIVES: To assess bone marrow edema at the pubic symphysis with magnetic resonance imaging (MRI), and its relation to training and osteitis pubis in an elite group of junior soccer players. SETTING: Soccer players on scholarship at the Australian Institute of Sport (AIS). PATIENTS: Nineteen players from an elite junior men's soccer squad. INTERVENTION/ASSESSMENT: Serial MRI examinations of the pubic symphysis over a 4-month training and playing period, training session questionnaire, and review of clinical diagnosis, investigations, and records on presentation of athletes with groin pain at the Department of Sports Medicine. MAIN OUTCOME MEASURES: Assessment of bone marrow edema (4-point scale) on MRI scans, review of athlete questionnaires, and review of clinical records. RESULTS: Initial MRI scans showed moderate to severe bone marrow edema at the pubic symphysis in 11 of the 18 asymptomatic players. There was a greatly decreased risk of developing groin pain (osteitis pubis) with more training prior to entry of the AIS soccer program (odds ratio per 4 sessions of training, 0.003). The correlation between initial bone marrow edema grading and pre-AIS training was small. The increase in bone marrow edema grading from baseline over the scans was 0.5 (90% CL, 0.4). CONCLUSIONS: Substantial amounts of bone marrow edema at the pubic symphysis can occur in asymptomatic elite junior soccer players, but it is only weakly related to the development of osteitis pubis. Progressing training loads more slowly in athletes presenting with low current training loads may be a useful strategy for the prevention of osteitis pubis in junior soccer players.


Asunto(s)
Médula Ósea/patología , Osteítis/patología , Sínfisis Pubiana/patología , Fútbol/lesiones , Adolescente , Edema/patología , Humanos , Imagen por Resonancia Magnética , Masculino , Osteítis/etiología , Dolor/patología
12.
Fam Pract ; 21(5): 545-51, 2004 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15367477

RESUMEN

BACKGROUND: High stress and low morale is a well accepted and studied phenomenon in general practice. OBJECTIVE: This study aimed to determine the benefits and mechanisms of stress management training in improving the psychological well-being and morale of GPs. METHODS: There were 85 GPs in the treatment group and 25 GPs in the control group, all from the Adelaide metropolitan region. The treatment group GPs were surveyed by questionnaire before and after a 15 h cognitive behavioural stress management training programme. RESULTS AND CONCLUSION: The study found that following this training programme, GPs' quality of work life and morale improved while their work-related distress and general psychological distress decreased. These gains were maintained or further improved at 12 week follow-up. Furthermore, results suggested that the most robust long-term benefits came from developing a problem-focused style to cope with life and work events.


Asunto(s)
Terapia Cognitivo-Conductual , Médicos de Familia/psicología , Estrés Psicológico/prevención & control , Adulto , Análisis de Varianza , Australia , Femenino , Humanos , Satisfacción en el Trabajo , Masculino , Persona de Mediana Edad , Calidad de Vida
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