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stress and athletes

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https://www.readbyqxmd.com/read/28542108/contralateral-spondylolysis-and-fracture-of-the-lumbar-pedicle-in-a-young-athlete
#1
Eran Kessous, Tracy Borsinger, Ayesha Rahman, Pierre A d'Hemecourt
STUDY DESIGN: Clinical case report of unilateral pedicular stress fracture with a contralateral spondylolysis in a male high school athlete presenting with low back pain. OBJECTIVES: To report this uncommon cause of low back pain in an adolescent athlete, and review the relevant literature. SUMMARY AND BACKGROUND DATA: The incidence of spondylolysis in the caucasian population was found to be about 3-6%. This number is probably higher in the athletic adolescent age group, with reports ranging from 8-15%...
May 24, 2017: Spine
https://www.readbyqxmd.com/read/28538325/heart-rate-variability-discriminates-competitive-levels-in-professional-soccer-players
#2
Riccardo Proietti, Selenia di Fronso, Lucas A Pereira, Laura Bortoli, Claudio Robazza, Fabio Y Nakamura, Maurizio Bertollo
Proietti, R, di Fronso, S, Pereira, LA, Bortoli, L, Robazza, C, Nakamura, FY, and Bertollo, M. Heart rate variability discriminates competitive levels in professional soccer players. J Strength Cond Res 31(6): 1719-1725, 2017-Heart rate variability (HRV) has been increasingly used to monitor team sports athletes. Besides the traditional time domain indices (i.e., the SD of successive RR intervals [SDNN] and the root mean square difference of successive normal RR intervals [RMSSD]), recently the use of the stress score (SS), which is an inverse function of the SD2 index derived from the Poincaré plot, and the sympathetic/parasympathetic ratio (S/PS) to monitor soccer players has been proposed...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538307/can-cold-water-immersion-enhance-recovery-in-elite-olympic-weightlifters-an-individualized-perspective
#3
Jan Schimpchen, Maximilian Wagner, Alexander Ferrauti, Michael Kellmann, Mark Pfeiffer, Tim Meyer
Schimpchen, J, Wagner, M, Ferrauti, A, Kellmann, M, Pfeiffer, M, and Meyer, T. Can cold water immersion enhance recovery in elite Olympic weightlifters? An individualized perspective. J Strength Cond Res 31(6): 1569-1576, 2017-We investigated whether cold water immersion (CWI) after intensive training sessions can enhance recovery in elite Olympic weightlifters, taking into account each athlete's individual response pattern. The entire German male Olympic weightlifting national team participated in the study (n = 7), ensuring collection of data from elite athletes only...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28530078/-athlete-s-heart-the-more-the-merrier
#4
REVIEW
Reut Shavit, Michael Glikson, Naama Constantini
Regular moderate exercise training is effective for the prevention and treatment of many common chronic diseases and improves cardiovascular health and life expectancy. However, long-term excessive endurance exercise may induce pathological structural remodeling of the heart. The athlete's heart is characterized by enlargement of cardiac chambers and eccentric hypertrophy with preserved myocardial function as normal physiological adaptations for prolonged and intense endurance physical stress. However, recent studies have demonstrated transient right ventricular dysfunction and elevation of cardiac biomarkers following intense endurance exercise...
September 2016: Harefuah
https://www.readbyqxmd.com/read/28524103/potential-impact-of-nutrition-on-immune-system-recovery-from-heavy-exertion-a-metabolomics-perspective
#5
REVIEW
David C Nieman, Susan Hazels Mitmesser
This review describes effective and ineffective immunonutrition support strategies for the athlete, with a focus on the benefits of carbohydrates and polyphenols as determined from metabolomics-based procedures. Athletes experience regular cycles of physiological stress accompanied by transient inflammation, oxidative stress, and immune perturbations, and there are increasing data indicating that these are sensitive to nutritional influences. The most effective nutritional countermeasures, especially when considered from a metabolomics perspective, include acute and chronic increases in dietary carbohydrate and polyphenols...
May 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28523986/inter-and-intrahemispheric-eeg-coherence-and-visuomotor-performance-during-shooting-competition-and-practice
#6
Minjung Woo, Yujin Kim
This study compared inter- and intrahemispheric cortical networking and visuomotor performance during practice and competition in 14 air pistol athletes (mean age of 17.8 years). Participants self-reported their competitiveness, stress, confidence, and relaxation through visual analog scales; shooting score and aiming time were measured by the SCATT program. Inter- and intrahemispheric coherences during aiming were analyzed. Under competition following the practice condition, self-reported competitiveness and stress were higher, but confidence was lower...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28515545/traumatic-brain-injury-and-neuropsychiatric-complications
#7
REVIEW
Saeed Ahmed, Hema Venigalla, Hema Madhuri Mekala, Sara Dar, Mudasar Hassan, Shahana Ayub
Traumatic brain injury (TBI) occurs when a blow or jolt to the head or a penetrating injury results in damage to the brain. It is the most frequent cause of hospitalization in young people with a higher prevalence in men. TBI is the leading cause of disability and mortality between the ages 1 and 45. TBI can be caused either by the direct result of trauma or due to a complication of the primary injury. The most common etiological factors for TBI are falls, road traffic accidents, violent physical assaults, and injuries associated with athletic activities...
March 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28512432/whole-body-cryotherapy-in-athletes-from-therapy-to-stimulation-an-updated-review-of-the-literature
#8
REVIEW
Giovanni Lombardi, Ewa Ziemann, Giuseppe Banfi
Nowadays, whole-body cryotherapy is a medical physical treatment widely used in sports medicine. Recovery from injuries (e.g., trauma, overuse) and after-season recovery are the main purposes for application. However, the most recent studies confirmed the anti-inflammatory, anti-analgesic, and anti-oxidant effects of this therapy by highlighting the underlying physiological responses. In addition to its therapeutic effects, whole-body cryotherapy has been demonstrated to be a preventive strategy against the deleterious effects of exercise-induced inflammation and soreness...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28512006/stress-fracture-in-athletes
#9
Jordane Saunier, Roland Chapurlat
Stress fractures are widely encountered in sport medicine and rheumatology. Stress fractures result from abnormal and repetitive loading on normal bone that lead to microdamage and then fracture. They occur after sudden increase in physical activity. They appear mostly at lower limbs. Women are at higher risk than men. Patients complain of mechanical pain. Clinical findings include focused pain and sometimes swelling. No biological test is useful for diagnosis. Plain radiographs are normal in early stage disease...
May 13, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28511279/blast-associated-traumatic-brain-injury-in-the-military-as-a-potential-trigger-for-dementia-and-chronic-traumatic-encephalopathy
#10
James Hasoon
Traumatic brain injuries (TBIs) resulting from blast exposures have significantly affected US military personnel throughout the world, particularly in Iraq and Afghanistan. From 2000-2016, more than 350,000 military service members were diagnosed with a TBI. Since the majority of blast-related TBIs are classified as mild with no definitive findings on physical examination or diagnostic studies, it is difficult to accurately diagnose individuals inflicted with such injuries. There are likely far more mild TBIs that remain undiagnosed in the military...
January 2017: U.S. Army Medical Department Journal
https://www.readbyqxmd.com/read/28508888/association-among-practice-frequency-on-depression-and-stress-among-competitive-us-male-wheelchair-rugby-athletes-with-tetraplegia
#11
S L Silveira, T Ledoux, M Cottingham, D C Hernandez
STUDY DESIGN: Cross-sectional. OBJECTIVES: To determine whether frequency of training is related to self-reported lower psychological distress, defined as depressive symptomology and perceived stress, among the US male wheelchair rugby athletes with tetraplegia. SETTING: United States. METHODS: Survey data were collected on a convenience sample at wheelchair rugby tournaments from January-April 2016. Participants self-reported depressive symptomology (CES-D-10), perceived stress scale (PSS), and frequency of rugby practice...
May 16, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28508338/fluid-balance-in-team-sport-athletes-and-the-effect-of-hypohydration-on-cognitive-technical-and-physical-performance
#12
REVIEW
Ryan P Nuccio, Kelly A Barnes, James M Carter, Lindsay B Baker
Sweat losses in team sports can be significant due to repeated bursts of high-intensity activity, as well as the large body size of athletes, equipment and uniform requirements, and environmental heat stress often present during training and competition. In this paper we aimed to: (1) describe sweat losses and fluid balance changes reported in team sport athletes, (2) review the literature assessing the impact of hypohydration on cognitive, technical, and physical performance in sports-specific studies, (3) briefly review the potential mechanisms by which hypohydration may impact team sport performance, and (4) discuss considerations for future directions...
May 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28503415/kickboxing-power-hour-case-report-of-fifth-metatarsal-apophysitis-iselin-disease-and-its-magnetic-resonance-imaging-features
#13
Nishant Gupta, Komal Sharma, Itisha Bansal, Yogesh Kumar, Daichi Hayashi
Youth now-a-days are getting more involved in mixed martial arts, with increasing number of cases of lateral foot pain due to various causes. The differential diagnoses of lateral foot pain in the pediatric population include avulsion fracture of the fifth metatarsal base, Jones fracture, diaphyseal stress fracture as well as os vesalianum pedis. We present a case of a 15-year-old athletic boy who presented with left lateral foot pain for a few weeks. The patient was actively involved in Kickboxing as well as active running...
April 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28503322/changes-in-oxidized-ldl-during-a-half-marathon-in-athletes-with-spinal-cord-injuries
#14
Toshihito Mitsui, Tomoyuki Ito, Yusuke Sasaki, Takashi Kawasaki, Takeshi Nakamura, Yukihide Nishimura, Tatsuru Ibusuki, Yukiharu Higuchi, Sayoko Hosoe, Fumiaki Ito, Fumihiro Tajima
INTRODUCTION: We reported previously that exercise significantly increases plasma adrenaline and oxidized low-density lipoprotein (oxLDL) in healthy subjects but not in persons with spinal cord injury (SCI). Since oxLDL and adrenaline levels are associated with oxidant/antioxidant balance, and exercise training elicits production of reactive oxygen species, we elucidated the effects of exercise on adrenaline, oxidant/antioxidant balance and oxLDL in individuals with SCI. CASE PRESENTATION: Eight subjects with cervical spinal cord injury (CSCI) and nine subjects with lower lesion of SCI (lower SCI (LSCI)) participated in a wheelchair half marathon race, and blood samples were collected before (pre), immediately after (post) and 1 h after the race (post 1 h)...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28493406/beta-hydroxy-beta-methylbutyrate-supplementation-and-skeletal-muscle-in-healthy-and-muscle-wasting-conditions
#15
REVIEW
Milan Holeček
Beta-hydroxy-beta-methylbutyrate (HMB) is a metabolite of the essential amino acid leucine that has been reported to have anabolic effects on protein metabolism. The aims of this article were to summarize the results of studies of the effects of HMB on skeletal muscle and to examine the evidence for the rationale to use HMB as a nutritional supplement to exert beneficial effects on muscle mass and function in various conditions of health and disease. The data presented here indicate that the beneficial effects of HMB have been well characterized in strength-power and endurance exercise...
May 10, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28485189/the-effects-of-sleep-deprivation-on-soccer-skills
#16
Ståle Pallesen, Hilde Stokvold Gundersen, Morten Kristoffersen, Bjørn Bjorvatn, Eirunn Thun, Anette Harris
Many athletes sleep poorly due to stress, travel, and competition anxiety. In the present study, we investigated the effects of sleep deprivation on soccer skills (juggling, dribbling, ball control, continuous kicking, 20 and 40 m sprint, and 30 m sprint with changes of direction). In all, 19 male junior soccer players (14-19 years old) were recruited and participated in a cross-balanced experimental study comprising two conditions; habitual sleep and 24 hours sleep deprivation. In both conditions, testing took place between 8 a...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28481698/perfectionism-predicts-injury-in-junior-athletes-preliminary-evidence-from-a-prospective-study
#17
Daniel J Madigan, Joachim Stoeber, Dale Forsdyke, Mark Dayson, Louis Passfield
According to the stress-injury model (Williams & Andersen, 1998), personality factors predisposing athletes to elevated levels of stress may increase the risk of injury. As perfectionism has been associated with chronic stress, it may be one such personality factor. So far, however, no study has investigated the relationships between perfectionism and injury utilising a prospective design. Therefore, the present study examined perfectionistic strivings, perfectionistic concerns and injury in 80 junior athletes from team and individual sports (mean age 17...
May 8, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28480859/the-effects-of-non-functional-overreaching-and-overtraining-on-autonomic-nervous-system-function-in-highly-trained-athletes
#18
T Kajaia, L Maskhulia, K Chelidze, V Akhalkatsi, Z Kakhabrishvili
Aim of the study was to compare the ANS functioning, as measured by heart rate variability (HRV), in athletes with non-functional overreaching (NFO) and overtraining syndrome (OTS) and in athletes without NFO/OTS. In 43 athletes with NFO/OTS, 40 athletes without NFO/OTS, as well as in 35 sedentary subjects the ANS function was evaluated with the Autonomic Balance Test, based on the HRV analysis of resting heart rate recordings. Results of the study show lower HRV and lower vagal influence along with increased sympathetic cardiovascular control in athletes with non-functional overreaching and particularly in athletes with overtraining, than in highly trained athletes without NFO/OTS...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28480685/hormonal-responses-to-a-rugby-match-a-brief-review
#19
Maamer Slimani, Foued Cheour, Wassim Moalla, Julien S Baker
BACKGROUND: Rugby is an intermittent team sport, commonly stressing the endocrine system by physiological efforts. However, no review has synthesized the available literature on the hormonal responses to a rugby match. The purpose of this review was to examine the hormonal responses to a rugby match. Mediator and moderator variables for the rugby match- hormonal responses relationship were also discussed. METHODS: The systematic search was conducted using different databases and according to the Population/Intervention or Exposure/Comparison/Outcome(s) [PICO] criteria...
May 5, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28480382/the-effect-of-caffeine-supplementation-on-trained-individuals-subjected-to-maximal-treadmill-test
#20
Viviane Martins Mana Salicio, Carlos Alexandre Fett, Marcos Adriano Salicio, Camila Fernanda Costa Cunha Moraes Brandäo, Luiz Fabrizio Stoppiglia, Waléria Christiane Rezende Fett, And Clovis Botelho
BACKGROUND: Intense physical training increases oxidative stress and inflammation, resulting into muscle and cellular damage. The aim of this study was to analyze the effect of caffeine supplementation on trained young individuals subjected to two treadmill maximal tests. MATERIALS AND METHODS: It was a double-blind and crossover study comprising 24 active individuals within the age group 18-30 years. The comparisons were conducted: the effect of exercise (week 1 x 2) and caffeine intake (GC x GP) on thiobarbituric acid (TBARS), interleukin 6 (IL-6), interleukin 10 (IL-10) and superoxide dismutase (SOD) variables during pre-exercise time (30 min...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
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