keyword
MENU ▼
Read by QxMD icon Read
search

Swim, Performance, Athlete

keyword
https://www.readbyqxmd.com/read/29777386/substrate-metabolism-during-ironman-triathlon-different-horses-on-the-same-courses
#1
Ed Maunder, Andrew E Kilding, Daniel J Plews
Ironman triathlons are ultra-endurance events of extreme duration. The performance level of those competing varies dramatically, with elite competitors finishing in ~ 8:00:00, and lower performing amateurs finishing in ~ 14-15:00:00. When applying appropriate values for swimming, cycling and running economies to these performance times, it is demonstrated that the absolute energy cost of these events is high, and the rate of energy expenditure increases in proportion with the athlete's competitive level...
May 18, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29749641/antioxidant-rich-foods-and-response-to-altitude-training-a-randomized-controlled-trial-in-elite-endurance-athletes
#2
Anu Elisa Koivisto, Gøran Paulsen, Ingvild Paur, Ina Garthe, Espen Tønnessen, Truls Raastad, Nasser Ezzatkhah Bastani, Jostein Hallén, Rune Blomhoff, Siv Kjølsrud Bøhn
High doses of isolated antioxidant supplements such as vitamin C and E, have demonstrated the potential to blunt cellular adaptations to training It is, however, unknown whether intake of high doses of antioxidants from foods has similar effects. Hence, the aim of the study was to investigate whether intake of antioxidant-rich foods affects adaptations to altitude training in elite athletes. In a randomized controlled trial, 31 national team endurance athletes (23 ± 5 years), ingested antioxidant-rich foods (n=16) or eucaloric control foods (n=15) daily during a 3-week altitude training camp (2320 m)...
May 11, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29729757/editorial-commentary-don-t-forgot-the-hip-in-swimmers-and-multisport-athletes
#3
EDITORIAL
Merrick J Wetzler
Swimming results in significant and repetitive stress on the hip as well as other joints, and hip pain in swimmers should not be ignored. Stretching and strengthening are the mainstays of injury prevention, and recent literature supports that when indicated, femoroacetabular impingement surgical treatment in swimmers results in excellent outcomes including return to sport and frequently at a level of performance superior to pre-injury status.
May 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29724975/long-term-consumption-of-energy-drinks-induces-biochemical-and-ultrastructural-alterations-in-the-heart-muscle
#4
Camelia Munteanu, Corina Rosioru, Corneliu Tarba, Camelia Lang
OBJECTIVE: Energy drinks (EDs) target young and active individuals and they are being marketed as enhancers of energy, concentration, and physical and cognitive performance. Their long-term consumption raises serious health concerns related to cardiovascular events. Here we investigate the effects of long-term Red Bull® consumption and its combination with alcohol on certain biochemical parameters and the ultrastructure of the myocardium. METHODS: Male Wistar rats were categorized into four groups and given different treatments via oral administration...
May 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29722578/a-review-of-prevention-diagnosis-and-treatment-of-relative-energy-deficiency-in-sport-red-s-in-artistic-synchronized-swimming
#5
Sherry Robertson, Margo Mountjoy
The syndrome Relative Energy Deficiency in Sport (RED-S) is a clinical entity characterized by low energy availability (LEA), which can negatively affect the health and performance of both male and female athletes. The underlying mechanism of RED-S is an inadequacy of dietary energy to support optimal health and performance. This syndrome refers to impaired physiological function including metabolic rate, menstrual function, bone health, immunity, protein synthesis, and cardiovascular health, with psychological consequences which can either precede (through restrictive dietary habits) or result from RED-S...
May 3, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29720479/scientific-rationale-for-changing-lower-water-temperature-limits-for-triathlon-racing-to-12%C3%A2-c-with-wetsuits-and-16%C3%A2-c-without-wetsuits
#6
Jane Saycell, Mitch Lomax, Heather Massey, Mike Tipton
OBJECTIVES: To provide a scientific rationale for lower water temperature and wetsuit rules for elite and subelite triathletes. METHODS: 11 lean, competitive triathletes completed a 20 min flume swim, technical transition including bike control and psychomotor testing and a cycle across five different wetsuit and water temperature conditions: with wetsuit: 10°C, 12°C and 14°C; without wetsuit (skins): 14°C and 16°C. Deep body (rectal) temperature (Tre ), psychomotor performance and the ability to complete a technical bike course after the swim were measured, as well as swimming and cycling performance...
May 2, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29658807/effect-of-bright-light-therapy-on-delayed-sleep-wake-cycle-and-reaction-time-of-athletes-participating-in-the-rio-2016-olympic-games
#7
João Paulo P Rosa, Andressa Silva, Dayane F Rodrigues, Mário Antônio Simim, Fernanda V Narciso, Sergio Tufik, Jorge J Bichara, Sebastian Rafael D Pereira, Sidney C Da Silva, Marco Tulio de Mello
This study investigated the effect of using an artificial bright light on the entrainment of the sleep/wake cycle as well as the reaction times of athletes before the Rio 2016 Olympic Games. A total of 22 athletes from the Brazilian Olympic Swimming Team were evaluated, with the aim of preparing them to compete at a time when they would normally be about to go to bed for the night. During the 8-day acclimatization period, their sleep/wake cycles were assessed by actigraphy, with all the athletes being treated with artificial light therapy for between 30 and 45 min (starting at day 3)...
April 16, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29658533/accelerometer-profile-of-motion-of-the-pelvic-girdle-in-butterfly-swimming
#8
Zbigniew Staniak, Krzysztof Buśko, Michał Górski, Anna Pastuszak
PURPOSE: The aim of the study was to develop a method to measure and analyse kinematics of movement of the pelvic girdle in butterfly swimming in order to support training of technical skills. METHODS: A device for recording triaxial accelerations and triaxial rotational angular velocities was mounted on the dorsal part of the pelvic girdle of athlete. The measurements were performed in ten elite butterfly swimmers (age: 23.1 ± 3.7 years, body height: 187.6 ± 4...
2018: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29627092/performance-characteristics-of-para-swimmers-how-effective-is-the-swimming-classification-system
#9
REVIEW
Brendan Burkett, Carl Payton, Peter Van de Vliet, Hannah Jarvis, Daniel Daly, Christiane Mehrkuehler, Marvin Kilian, Luke Hogarth
Swimming is one of the inaugural sports within the Olympic and Paralympic Games, the key difference between the Olympic and Paralympic games being the classification system. The aim of this study was to investigate how effective the current classification system creates clearly differentiated Paralympic competition classes, based on performance time for all swimming strokes and events. Based on the performance characteristics of swimmers within the current classification system, the relationship between impairment and swimming performance is inconsistent, potentially disadvantaging some athletes...
May 2018: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/29626614/effects-of-whole-body-vibration-on-tibia-strength-and-structure-of-competitive-adolescent-swimmers-a-randomized-controlled-trial
#10
Alejandro Gómez-Bruton, Alejandro González-Agüero, Angel Matute-Llorente, Cristina Julián, Gabriel Lozano-Berges, Alba Gómez-Cabello, Nuria Garatachea, Jose A Casajús, German Vicente-Rodríguez
BACKGROUND: Swimming has no effect on bone mass or structure. Therefore, adolescent swimmers present similar bone strength values when compared to normo-active controls, and lower values when compared to weight-bearing athletes. It thus seems necessary to try to improve bone structure and strength of adolescent swimmers through a weight-bearing intervention in order to reduce the risk of suffering osteoporosis later in life. OBJECTIVE: To evaluate the effects of a 6-month WBV intervention on bone strength and structure of adolescent swimmers...
April 4, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29594176/scapular-dyskinesis-in-young-asymptomatic-elite-swimmers
#11
Jacopo Preziosi Standoli, Francesco Fratalocchi, Vittorio Candela, Tiziano Preziosi Standoli, Giuseppe Giannicola, Marco Bonifazi, Stefano Gumina
Background: Overhead athletes are at a greater risk of developing scapular dyskinesis (SD). Although swimming is considered an overhead sport, information regarding SD in these athletes is scarce. Purpose: To determine the prevalence of SD in young, asymptomatic elite swimmers. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A total of 661 asymptomatic elite swimmers were enrolled in this study (344 male, 317 female; mean age, 15...
January 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29560605/pacing-in-swimming-a-systematic-review
#12
REVIEW
Katie E McGibbon, D B Pyne, M E Shephard, K G Thompson
BACKGROUND: Pacing strategy, or how energy is distributed during exercise, can substantially impact athletic performance and is considered crucial for optimal performance in many sports. This is particularly true in swimming given the highly resistive properties of water and low mechanical efficiency of the swimming action. OBJECTIVES: The aim of this systematic review was to determine the pacing strategies utilised by competitive swimmers in competition and their reproducibility, and to examine the impact of different pacing strategies on kinematic, metabolic and performance variables...
March 20, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29546801/100-m-breaststroke-swimming-performance-in-youth-swimmers-the-predictive-value-of-anthropometrics
#13
Senda Sammoud, Alan Michael Nevill, Yassine Negra, Raja Bouguezzi, Helmi Chaabene, Younés Hachana
This study aimed to estimate the optimal body size, limb segment length, and girth or breadth ratios of 100-m breaststroke performance in youth swimmers. In total, 59 swimmers [male: n = 39, age = 11.5 (1.3) y; female: n = 20, age = 12.0 (1.0) y] participated in this study. To identify size/shape characteristics associated with 100-m breaststroke swimming performance, we computed a multiplicative allometric log-linear regression model, which was refined using backward elimination. Results showed that the 100-m breaststroke performance revealed a significant negative association with fat mass and a significant positive association with the segment length ratio (arm ratio = hand length/forearm length) and limb girth ratio (girth ratio = forearm girth/wrist girth)...
March 16, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29503588/the-relationship-of-wearing-a-wetsuit-in-long-distance-open-water-swimming-with-sex-age-calendar-year-performance-and-nationality-crossing-the-strait-of-gibraltar
#14
Pantelis Theodoros Nikolaidis, Caio Victor Sousa, Beat Knechtle
Aim: The aim of the present study was to investigate the relationship of wearing a wetsuit with sex, age group, nationality, calendar year, and performance in crossing the "Strait of Gibraltar"(14.3 km). Materials and methods: A sample of 1,130 open-water (females, n=180, age 35.9±11.9 years; males, n=950, age 40.0±10.2 years) ultra-distance swimmers crossing the "Strait of Gibraltar" since 1950 was analyzed. Results: Male, older, and Spanish swimmers used wetsuits more often than female, younger, and athletes of other nationalities, respectively, and the use of the wetsuit has increased during the past three decades...
2018: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29403550/morphological-and-molecular-variations-induce-mitochondrial-dysfunction-as-a-possible-underlying-mechanism-of-athletic-amenorrhea
#15
Ruo-Hong Xiong, Shi-Lei Wen, Qiang Wang, Hong-Ying Zhou, Shi Feng
Female athletes may experience difficulties in achieving pregnancy due to athletic amenorrhea (AA); however, the underlying mechanisms of AA remain unknown. The present study focuses on the mitochondrial alteration and its function in detecting the possible mechanism of AA. An AA rat model was established by excessive swimming. Hematoxylin and eosin staining, and transmission electron microscopic methods were performed to evaluate the morphological changes of the ovary, immunohistochemical examinations and radioimmunoassays were used to detect the reproductive hormones and corresponding receptors...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29402586/high-rate-of-return-to-swimming-after-hip-arthroscopy-for-femoroacetabular-impingement
#16
Rachel M Frank, Gift Ukwuani, Jorge Chahla, Brian Batko, Charles A Bush-Joseph, Shane J Nho
PURPOSE: To evaluate patients' ability to return to swimming after hip arthroscopy for femoroacetabular impingement syndrome (FAIS) with capsular closure. METHODS: Consecutive FAIS patients who had undergone hip arthroscopy for the treatment of FAIS by a single fellowship-trained surgeon were reviewed. The inclusion criteria included patients with a diagnosis of FAIS who self-reported being swimming athletes with a minimum clinical follow-up duration of 2 years...
February 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29398369/transient-relative-age-effects-across-annual-age-groups-in-national-level-australian-swimming
#17
Stephen Cobley, Shaun Abbott, Sera Dogramaci, Adam Kable, James Salter, Mirjam Hintermann, Michael Romann
OBJECTIVES: To determine the prevalence, magnitude and transient patterning of Relative Age Effects (RAEs) according to sex and stroke event across all age-groups at the Australian National age swimming Championships. DESIGN: Repeated years of cross-sectional participation data were examined. METHODS: Participants were 6014 unique male (3185) and female (2829) swimmers (aged 12-18 years) who participated in Freestyle (50, 400m) and/or Breaststroke (100, 200m) at the National age swimming Championships between 2000-2014 (inclusive)...
December 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29369834/oral-hypertonic-saline-is-effective-in-reversing-acute-mild-to-moderate-symptomatic-exercise-associated-hyponatremia
#18
Eileen Bridges, Tawfeeq Altherwi, José A Correa, Tamara Hew-Butler
OBJECTIVES: To determine whether oral administration of 3% hypertonic saline (HTS) is as efficacious as intravenous (IV) 3% saline in reversing symptoms of mild-to-moderate symptomatic exercise-associated hyponatremia (EAH) in athletes during and after a long-distance triathlon. DESIGN: Noninferiority, open-label, parallel-group, randomized control trial to IV or oral HTS. We used permuted block randomization with sealed envelopes, containing the word either "oral" or "IV...
January 23, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29352373/sleep-interventions-designed-to-improve-athletic-performance-and-recovery-a-systematic-review-of-current-approaches
#19
REVIEW
Daniel Bonnar, Kate Bartel, Naomi Kakoschke, Christin Lang
BACKGROUND: Athletes experience various situations and conditions that can interfere with their sleep, which is crucial for optimal psychological and physiological recovery as well as subsequent performance. Conventional sleep screening and intervention approaches may not be efficacious for athletes given their lifestyle, the demands of training and travel associated with interstate/international competition. OBJECTIVES: The present systematic review aimed to summarize and evaluate sleep intervention studies targeting subsequent performance and recovery in competitive athletes...
March 2018: Sports Medicine
https://www.readbyqxmd.com/read/29352279/girls-in-the-boat-sex-differences-in-rowing-performance-and-participation
#20
Kevin G Keenan, Jonathon W Senefeld, Sandra K Hunter
Men outperform women in many athletic endeavors due to physiological and anatomical differences (e.g. larger and faster muscle); however, the observed sex differences in elite athletic performance are typically larger than expected, and may reflect sex-related differences in opportunity or incentives. As collegiate rowing in the United States has been largely incentivized for women over the last 20 years, but not men, the purpose of this study was to examine sex differences in elite rowing performance over that timeframe...
2018: PloS One
keyword
keyword
66301
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"