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Athlete muscle cramps

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https://www.readbyqxmd.com/read/27710151/exertional-hyponatremia-and-serum-sodium-change-during-ultraendurance-cycling
#1
Lawrence E Armstrong, Elaine C Lee, Douglas Casa, Evan C Johnson, Matthew S Ganio, Brendon McDermott, Jakob Vingren, Hymn M Oh, Keith H Williamson
Although case reports of exertional hyponatremia (EH) during prolonged exercise implicate retention of excess fluid, athletes with EH experience either loss, gain, or no change of body weight. Thus, the etiology and predisposing factors of EH may not be the same in all athletes. The present field investigation evaluated two unacquainted recreational cyclists (LC, 31y and AM, 39y) who began exercise with normal serum electrolytes but finished a summer 164-km ride (ambient, 34±5°C) with a serum [Na+] of 130 mmol/L...
October 6, 2016: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/27676876/muscle-injuries-and-hamstring-muscle-injuries-during-the-international-athletics-championships-between-2007-and-2015
#2
Pascal Edouard, Pedro Branco, Juan-Manuel Alonso
OBJECTIVE: The purpose of this study was to analyse the incidence and characteristics of muscle injuries and hamstring muscle injuries occurred during the international athletics championships from 2007 to 2015. PATIENTS AND METHODS: National medical teams and local organizing committee physicians have collected every day all newly occurred injury whenever international championship from 2007 to 2015. Only the muscle injuries and hamstring muscle injuries, whatever gravity (cramp, contracture, rupture, avulsion), were analysed...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27676872/athletic-injury-prevention-epidemiology-of-injuries-during-the-french-elite-championships
#3
Pascal Edouard, Jean-Michel Serra, Pierre Hertert, Emmanuelle Cugy, Nicolas Morel, Martine Prevost, Frédéric Depiesse
OBJECTIVE: The epidemiology of injuries is the first step in the sports injuries prevention. In this context, the IAAF and EA have implemented a prospective injury follow-up during their international athletics championships since 2007, and the FFA initiated since the French championships in 2014. The aim of the study was to determine the incidence and characteristics of injuries during the French Elite championships. PATIENTS AND METHODS: During the period of the outdoor and indoor French Elite championships, all newly occurring injuries were recorded by the local medical team...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27428007/an-update-on-the-relationship-between-statins-and-physical-activity
#4
Gregory A Panza, Beth A Taylor, Paul D Thompson
PURPOSE OF REVIEW: This review examined studies published within the last 16 months that investigated the relationship between statins and physical activity. RECENT FINDINGS: These recent studies suggest that statins do not adversely affect cardiorespiratory fitness, muscle strength, athletic performance, or physical activity adherence. One recent study comparing patients with statin-associated myalgia and nonstatin-using controls did report that statins are associated with a slowing of time to peak power output, increased abdominal adiposity, and insulin resistance...
September 2016: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/27313172/injury-and-illness-in-aquatic-sport-how-high-is-the-risk-a-comparison-of-results-from-three-fina-world-championships
#5
Annika Prien, Margo Mountjoy, Jim Miller, Kevin Boyd, Cees van den Hoogenband, David Gerrard, Mohamed Yahia Cherif, Yifan Lu, Kyriakos Nanousis, Edgar Ivan Ortiz Liscano, Farhad Moradi Shahpar, Astrid Junge
BACKGROUND: Epidemiological information on injury/illness is required to develop effective injury prevention strategies. AIM: To assess the frequency and characteristics of injuries/illnesses (1) in the 4 weeks prior to and (2) during the Fédération Internationale de Natation (FINA) World Championships 2015 compared with 2013 and 2009. METHOD: (1) Athletes answered a retrospective questionnaire, and (2) the medical staff reported injuries/illnesses prospectively during the championships...
June 16, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27159592/a-narrative-review-of-exercise-associated-muscle-cramps-factors-that-contribute-to-neuromuscular-fatigue-and-management-implications
#6
REVIEW
Nicole L Nelson, James R Churilla
Although exercise-associated muscle cramps (EAMC) are highly prevalent among athletic populations, the etiology and most effective management strategies are still unclear. The aims of this narrative review are 3-fold: (1) briefly summarize the evidence regarding EAMC etiology; (2) describe the risk factors and possible physiological mechanisms associated with neuromuscular fatigue and EAMC; and (3) report the current evidence regarding prevention of, and treatment for, EAMC. Based on the findings of several large prospective and experimental investigations, the available evidence indicates that EAMC is multifactorial in nature and stems from an imbalance between excitatory drive from muscle spindles and inhibitory drive from Golgi tendon organs to the alpha motor neurons rather than dehydration or electrolyte deficits...
August 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/26887415/muscle-injury-is-the-principal-injury-type-and-hamstring-muscle-injury-is-the-first-injury-diagnosis-during-top-level-international-athletics-championships-between-2007-and-2015
#7
Pascal Edouard, Pedro Branco, Juan-Manuel Alonso
BACKGROUND: During top-level international athletics championships, muscle injuries are frequent. OBJECTIVE: To analyse the incidence and characteristics of muscle injuries and hamstring muscle injuries (hamstring injuries) occurring during top-level international athletics championships. METHODS: During 16 international championships held between 2007 and 2015, national medical team and local organising committee physicians reported daily all injuries on a standardised injury report form...
May 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/26605029/are-electrically-induced-muscle-cramps-able-to-increase-the-cramp-threshold-frequency-when-induced-once-a-week
#8
Michael Behringer, Tobias Walter Link, Johannes Caspar Konrad Montag, Molly Leigh McCourt, Joachim Mester
The cramp threshold frequency (CTF) is known to be positively correlated with the individual cramp susceptibility. Here we assessed CTF changes after two bouts of electrically induced muscle cramps (EIMCs). The EIMCs (6×5 sec) were unilaterally induced twice (separated by one week) in the gastrocnemius of an intervention group (n=8), while 5 participants served as control. The CTF increased from 25.1±4.6 Hz at baseline to 31.4±9.0 Hz and 31.7±8.5 Hz 24 h after bout 1 and 2 (P<0.05). Thereafter, the CTF declined following both bouts to reach values of 28...
September 28, 2015: Orthopedic Reviews
https://www.readbyqxmd.com/read/25945453/does-a-reduction-in-serum-sodium-concentration-or-serum-potassium-concentration-increase-the-prevalence-of-exercise-associated-muscle-cramps
#9
Donal Murray, Kevin C Miller, Jeffrey E Edwards
Although exercise-associated muscle cramps (EAMC) are common in ultradistance runners and athletes in general, their etiology remains unclear. EAMC are painful, sudden, involuntary contractions of skeletal muscle occurring during or after exercise and are recognized by visible bulging or knotting of the whole, or part of, a muscle. Many clinicians believe EAMC occur after an imbalance in electrolyte concentrations, specifically serum sodium concentration ([Na+]s) and serum potassium concentration ([K+]s). Studies that have established a link between EAMC occurrence and serum electrolyte concentrations after an athletic event are unhelpful...
August 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/25817189/all-arthroscopic-suprapectoral-versus-open-subpectoral-tenodesis-of-the-long-head-of-the-biceps-brachii
#10
COMPARATIVE STUDY
Mufaddal Mustafa Gombera, Cynthia A Kahlenberg, Rueben Nair, Matthew D Saltzman, Michael A Terry
BACKGROUND: Pathologic changes of the long head of the biceps tendon are a recognized source of shoulder pain in adults that can be treated with tenotomy or tenodesis when nonoperative measures are not effective. It is not clear whether arthroscopic or open biceps tenodesis has a clinical advantage. HYPOTHESIS: Pain relief and shoulder function after all-arthroscopic suprapectoral biceps tenodesis are similar to outcomes after an open subpectoral tenodesis. STUDY DESIGN: Cohort study; Level of evidence, 3...
May 2015: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/25618889/sex-differences-in-injury-during-top-level-international-athletics-championships-surveillance-data-from-14-championships-between-2007-and-2014
#11
Pascal Edouard, Nina Feddermann-Demont, Juan Manuel Alonso, Pedro Branco, Astrid Junge
BACKGROUND: Injury incidence has been reported for international athletics championships from 2007 to 2012. However, it is unclear whether male or female athletes differ in risk and/or characteristics of injuries. OBJECTIVE: To compare the incidences and characteristics of injuries that occurred during international athletics championships between female and male athletes. METHODS: The national medical team and the local organising committee physicians reported all injuries daily on a standardised injury report form during 14 international championships from 2007 to 2014...
April 2015: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/25240413/heat-related-illness-in-sports-and-exercise
#12
Andrew W Nichols
Exertional heat-related illness (EHRI) is comprised of several states that afflict physically active persons when exercising during conditions of high environmental heat stress. Certain forms of EHRI may become life threatening if not treated. Exertional heat stroke (EHS), characterized by a core body temperature of >40 ° C and mental status changes, is the most severe form of EHRI. EHS must be treated immediately with rapid body cooling to reduce morbidity and mortality. Many EHRI cases are preventable by following heat acclimatization guidelines, modifying sports and exercise sessions during conditions of high environmental heat stress, maintaining adequate hydration, avoiding exertion in the heat when ill, and by educating sports medicine personnel, coaches, parents, and athletes on the early recognition and prevention of EHRI...
December 2014: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/25154157/study-of-major-factors-developed-among-young-swimmers-during-the-practice-session-and-competition-causing-interference-of-their-performances
#13
Pradip Kumar Das, Debjit Panja
Swimming is a mass-oriented, well organised and health directed sport which helps to acquire good health for the participants. In our country it is started mostly in the 8-9 years of age and when compared to developed countries the children start the practices around the 3-6 years of age. In swimming like other sports, injury can happen particularly during practice and events competition. The different types of injuries like shoulder joint injury, knee joint injury, red eyes, ear-nose infections, muscle cramps, etc, so happened during swimming practice and swimming competition, affect the performances of the swimmers on many different levels, in both training and in swim meets...
December 2013: Journal of the Indian Medical Association
https://www.readbyqxmd.com/read/24955622/electrolyte-and-plasma-responses-after-pickle-juice-mustard-and-deionized-water-ingestion-in-dehydrated-humans
#14
Kevin C Miller
CONTEXT: Some athletes ingest pickle juice (PJ) or mustard to treat exercise-associated muscle cramps (EAMCs). Clinicians warn against this because they are concerned it will exacerbate exercise-induced hypertonicity or cause hyperkalemia. Few researchers have examined plasma responses after PJ or mustard ingestion in dehydrated, exercised individuals. OBJECTIVE: To determine if ingesting PJ, mustard, or deionized water (DIW) while hypohydrated affects plasma sodium (Na(+)) concentration ([Na(+)]p), plasma potassium (K(+)) concentration ([K(+)]p), plasma osmolality (OSMp), or percentage changes in plasma volume or Na(+) content...
May 2014: Journal of Athletic Training
https://www.readbyqxmd.com/read/24949829/effects-of-100-km-ultramarathon-on-acute-kidney-injury
#15
Wei-Fong Kao, Sen-Kuang Hou, Yu-Hui Chiu, Shang-Lin Chou, Fon-Chu Kuo, Shih-Hao Wang, Jin-Jong Chen
OBJECTIVE: To evaluate the prevalence and characteristics of acute kidney injury (AKI) in 100-km ultramarathon runners. DESIGN: Prospective observational study. SETTING: The 2011 Soochow University ultramarathon, in which each athlete ran for 100 km. PARTICIPANTS: All Taiwanese entrants who participated in the 100-km race and lived in the northern part of Taiwan were invited to participate in the study. MAIN OUTCOME MEASURES: Acute kidney injury was defined using the Acute Kidney Injury Network criteria...
January 2015: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/24520835/electrolyte-and-plasma-responses-after-pickle-juice-mustard-and-deionized-water-ingestion-in-dehydrated-humans
#16
Kevin C Miller
Context : Some athletes ingest pickle juice (PJ) or mustard to treat exercise-associated muscle cramps (EAMCs). Clinicians warn against this because they are concerned it will exacerbate exercise-induced hypertonicity or cause hyperkalemia. Few researchers have examined plasma responses after PJ or mustard ingestion in dehydrated, exercised individuals. Objective : To determine if ingesting PJ, mustard, or deionized water (DIW) while hypohydrated affects plasma sodium (Na(+)) concentration ([Na(+)]p), plasma potassium (K(+)) concentration ([K(+)]p), plasma osmolality (OSMp), or percentage changes in plasma volume or Na(+) content...
February 12, 2014: Journal of Athletic Training
https://www.readbyqxmd.com/read/24198676/hydration-and-temperature-in-tennis-a-practical-review
#17
REVIEW
Mark S Kovacs
Competitive tennis is typically played in warm and hot environments. Because hypohydration will impair tennis performance and increases the risk of heat injury, consumption of appropriate fluid levels is necessary to prevent dehydration and enhance performance. The majority of research in this area has focused on continuous aerobic activity - unlike tennis, which has average points lasting less than ten seconds with rest periods dispersed between each work period. For this reason, hydration and temperature regulation methods need to be specific to the activity...
2006: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/23949097/fructose-maltodextrin-ratio-governs-exogenous-and-other-cho-oxidation-and-performance
#18
RANDOMIZED CONTROLLED TRIAL
Wendy J O'Brien, Stephen R Stannard, Jim A Clarke, David Stephen Rowlands
INTRODUCTION: Fructose coingested with glucose in carbohydrate (CHO) drinks increases exogenous-CHO oxidation, gut comfort, and physical performance. PURPOSE: This study aimed to determine the effect of different fructose-maltodextrin-glucose ratios on CHO oxidation and fluid absorption while controlling for osmolality and caloricity. METHODS: In a crossover design, 12 male cyclists rode 2 h at 57% peak power then performed 10 sprints while ingesting artificially sweetened water or three equiosmotic 11...
September 2013: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/23769763/effects-of-kinesio-taping-on-venous-symptoms-bioelectrical-activity-of-the-gastrocnemius-muscle-range-of-ankle-motion-and-quality-of-life-in-postmenopausal-women-with-chronic-venous-insufficiency-a-randomized-controlled-trial
#19
RANDOMIZED CONTROLLED TRIAL
María Encarnación Aguilar-Ferrándiz, Adelaida María Castro-Sánchez, Guillermo A Matarán-Peñarrocha, Francisco García-Muro, Theys Serge, Carmen Moreno-Lorenzo
OBJECTIVE: To assess the efficacy of Kinesio taping (KT) on venous symptoms, quality of life, severity, pain, edema, range of ankle motion (ROAM), and peripheral muscle myoelectrical activity in lower limbs of postmenopausal women with mild chronic venous insufficiency (CVI). DESIGN: Double-blinded randomized controlled trial with concealed allocation. SETTING: Clinical setting. PARTICIPANTS: Consecutive postmenopausal women (N=123; age range, 62-67y) with early-stage CVI...
December 2013: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/23764884/kinesiotaping-reduces-pain-and-modulates-sensory-function-in-patients-with-focal-dystonia-a-randomized-crossover-pilot-study
#20
RANDOMIZED CONTROLLED TRIAL
Elisa Pelosin, Laura Avanzino, Roberta Marchese, Paola Stramesi, Martina Bilanci, Carlo Trompetto, Giovanni Abbruzzese
BACKGROUND: Pain is one of the most common and disabling "nonmotor" symptoms in patients with dystonia. No recent study evaluated the pharmacological or physical therapy approaches to specifically treat dystonic pain symptoms. OBJECTIVE: To evaluate the effectiveness of KinesioTaping in patients with cervical dystonia (CD) and focal hand dystonia (FHD) on self-reported pain (primary objective) and on sensory functions (secondary objective). METHODS: Twenty-five dystonic patients (14 with CD and 11 FHD) entered a randomized crossover pilot study...
October 2013: Neurorehabilitation and Neural Repair
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