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Recovery, Performance, Athlete

Hardaway Chun-Kwan Chan, Weeraya Ka-Yan Ho, Patrick Shu-Hang Yung
Background/Objective: The aim of this study was to examine the effect of sprint cycling training on the intermittent run performance, sprinting speed, and change of direction (COD) ability of recreational intermittent sports athletes. Methods: Sixteen participants participated in the study. The experimental group (EG, n = 8) received a total of 12 sessions of sprint cycling training in a 4-week period and the control group (CG, n = 8) received no training. Both EG and CG were instructed to maintain their daily activity during the 4-week period...
January 2018: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
C Kajetanek, O Benoît, B Granger, F Menegaux, N Chereau, H Pascal-Mousselard, F Khiami
BACKGROUND: Surgery for athletic pubalgia usually consists in abdominal wall repair combined with routine bilateral adductor tenotomy. We currently confine the surgical procedure to the injured structure(s) (abdominal wall only, adductor tendon only, or both) to limit morbidity and expedite recovery. Outcomes of this à la carte approach are unclear. The objectives of this retrospective study were to determine the return to play (RTP) time, evaluate the potential influence of injury location, and assess the frequency of recurrence or contralateral involvement...
March 13, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
Débora Finger, Fábio Juner Lanferdini, Juliano Boufleur Farinha, Clarissa Müller Brusco, Lucas Helal, Francesco Pinto Boeno, Eduardo Lusa Cadore, Ronei Silveira Pinto
INTRODUCTION: Protein (PRO) combined with a carbohydrate (CHO) beverage may have an ergogenic effect on endurance performance. However, evidence regarding its efficacy on similar conditions to athletes' race day is still lacking. OBJECTIVE: To compare the effect of three different nutritional supplementation strategies on performance and muscle recovery in a duathlon protocol. METHODS: , 13 male athletes (29.7 ± 7.7 years) participated in three simulated Olympic-distance duathlons under three different, randomly assigned, supplementation regimens: carbohydrate drink (CHO, 75 g); isocaloric CHO plus protein drink (CHO+PRO, 60...
March 15, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Jahan Heidari, Jürgen Beckmann, Maurizio Bertollo, Michel Brink, Wolfgang Kallus, Claudio Robazza, Michael Kellmann
Monitoring of recovery in the context of athletic performance has gained significant importance during recent years. As a systematic process of data collection and evaluation, the monitoring of recovery can be implemented for various purposes. It may aid to prevent negative outcomes of training or competition, such as underrecovery, overtraining, or injuries. Further, it aims at establishing routines and strategies necessary to guarantee athletes' readiness for performance by restoring their depleted resources...
March 15, 2018: International Journal of Sports Physiology and Performance
Nur S Ibrahim, Chee K Chen, Ayunizma Ayub, Ayu S Muhamad
Introduction: Lysozyme is one of the salivary antimicrobial proteins which act as the "first line of defence" at the mucosal surface. The effects of prolonged exercise in the hot and cool environments among recreational athletes on salivary lysozyme responses are very limited in the literature, especially in the Asian countries. Objective: To determine the effects of prolonged running in the hot and cool environments on selected physiological parameters and salivary lysozyme responses among recreational athletes...
December 2017: Journal of Exercise Science and Fitness
Diego Moreno-Pérez, Carlo Bressa, María Bailén, Safa Hamed-Bousdar, Fernando Naclerio, Manuel Carmona, Margarita Pérez, Rocío González-Soltero, Maria Gregoria Montalvo-Lominchar, Claudia Carabaña, Mar Larrosa
Nutritional supplements are popular among athletes to improve performance and physical recovery. Protein supplements fulfill this function by improving performance and increasing muscle mass; however, their effect on other organs or systems is less well known. Diet alterations can induce gut microbiota imbalance, with beneficial or deleterious consequences for the host. To test this, we performed a randomized pilot study in cross-country runners whose diets were complemented with a protein supplement (whey isolate and beef hydrolysate) ( n = 12) or maltodextrin (control) ( n = 12) for 10 weeks...
March 10, 2018: Nutrients
Roger Fielding, Linda Riede, James P Lugo, Aouatef Bellamine
Given its pivotal role in fatty acid oxidation and energy metabolism, l-carnitine has been investigated as ergogenic aid for enhancing exercise capacity in the healthy athletic population. Early research indicates its beneficial effects on acute physical performance, such as increased maximum oxygen consumption and higher power output. Later studies point to the positive impact of dietary supplementation with l-carnitine on the recovery process after exercise. It is demonstrated that l-carnitine alleviates muscle injury and reduces markers of cellular damage and free radical formation accompanied by attenuation of muscle soreness...
March 13, 2018: Nutrients
Alastair Ross Jordan, David Claxton, Alison Purvis, Andrew Barnes, Mary Fysh
The vertical treadmill (VertiRun) is an unresearched mode of exercise where users engage in a "running-like" action whilst body weight is supported by a recumbent bench and overhanging resistance cables are tethered to the user's ankles. The purpose of this study was to determine the effects of training on a VertiRun and any cross-training effect on running performance. Thirty active males (age, 22±4 years; stature, 1.79±0.08 m; body mass, 78.5±12.6 kg) volunteered for this study. Participants' aerobic and anaerobic running performance were determined by incremental maximum rate of oxygen consumption (VO2max) treadmill test and a maximum anaerobic running test (MART), respectively...
February 2018: Journal of Exercise Rehabilitation
Paula C Charlton, Benjamin Raysmith, Martin Wollin, Simon Rice, Craig Purdam, Ross A Clark, Michael K Drew
OBJECTIVES: To evaluate strength and flexibility measures pre- and post- Australian Football (AF) competition to determine their potential utility as secondary prevention measures. DESIGN: Cohort study. SETTING: Semi-professional AF club. PARTICIPANTS: Ten male AF athletes (mean ± SD; age, 21.3 ± 2.2 years; height, 186.1 ± 6.3 cm; weight, 83.5 ± 8.6 kg). MAIN OUTCOME MEASURES: Maximal unilateral isometric knee flexion strength performed in 45 degrees of hip flexion and 30 degrees of knee flexion, flexibility measures of hip and knee extension and ankle dorsiflexion...
February 2, 2018: Physical Therapy in Sport
Malia N Blue, Eric T Trexler, Katie R Hirsch, Abbie E Smith-Ryan
BACKGROUND: Body composition (%BF), omega-3 and vitamin D (VitD) status are important components of an athlete's individual physiological profile, as each measure has potential to influence performance, inflammation, and injury recovery. The purpose of this study was to characterize %BF, omega-3, and VitD in a subset of professional football athletes. Secondary analyses investigated changes in %BF, omega-3, and VitD, throughout a competitive season, and evaluated the relationship between physiological variables, race, and injury prevalence...
March 1, 2018: Journal of Sports Medicine and Physical Fitness
M Przybyl, K Walenczak, M E Domzalski
BACKGROUND: Arthroscopic surgery is becoming popular in the management of hip pathologies. There are numerous studies describing the outcomes of the treatment of athletes with this method. These outcomes are generally found to be excellent. Yet there are little data in the literature with respect to the arthroscopic treatment of nonathletes. The objective of our study is to compare the outcomes of the femoroacetabular impingement (FAI) treatment between athletes and nonathletes using arthroscopy, using two popular scales...
January 2018: Journal of Orthopaedic Surgery
Pedro Forte, Daniel A Marinho, Jorge E Morais, Pedro G Morouço, Tiago M Barbosa
Biomechanics plays an important role helping Paralympic sprinters to excel, having the aerodynamic drag a significant impact on the athlete's performance. The aim of this study was to assess the aerodynamics in different key-moments of the stroke cycle by Computational Fluid Dynamics. A world-ranked wheelchair sprinter was scanned on the racing wheelchair wearing his competition gear and helmet. The sprinter was scanned in three different positions: (i) catch (hands in the 12h position on the hand-rim); (ii) the release (hands in the 18h position on the hand-rim) and; (iii) recovery phase (hands do not touch the hand-rim and are hyperextended backwards)...
2018: PloS One
Lea C Rundfeldt, Martina A Maggioni, Robert H Coker, Hanns-Christian Gunga, Alain Riveros-Rivera, Adriane Schalt, Mathias Steinach
Studies on human physical performance in extreme environments have effectively approached the investigation of adaptation mechanisms and their physiological limits. As scientific interest in the interplay between physiological and psychological aspects of performance is growing, we aimed to investigate cardiac autonomic control, by means of heart rate variability, and psychological correlates, in competitors of a subarctic ultramarathon, taking place over a 690 km course (temperatures between +5 and -47°C)...
2018: Frontiers in Physiology
Michael S Green, Tyler D Martin, Benjamin T Corona
Caffeine use is common among athletes seeking to capitalize on its potential ergogenic effects. Limited research has examined caffeine's effects when utilized following activities that resulted in exercise-induced muscle damage (EIMD). This study examined the effect of caffeine supplementation on uninjured and injured muscle. Eight male and female (N = 16) physically active individuals participated (age: 24.3 ± 4.3 y; height: 173.0 ± 7.0 cm, mass: 75.2 ± 11.5 kg; body fat: 18.2 ± 15.9 %). One leg was assessed under uninjured and injured (100 eccentric quadriceps contractions) conditions following caffeine supplementation (6 mg/kg), with the other leg assessed under both conditions following placebo supplementation...
February 22, 2018: Journal of Strength and Conditioning Research
Urtats Etxegarai, Ainhoa Insunza, Jon Larruskain, Jordan Santos-Concejero, Susana M Gil, Eva Portillo, Jon Irazusta
We investigated whether heart rate (HR)-derived parameters are accurate performance predictors in endurance recreational runners. One hundred thirty recreational athletes completed an incremental running test (4´running + 1´rest). After each stage, we recorded HR, % of maximum HR (%HRmax), and blood lactate. We also assessed HR after each recovery period, and calculated lactate and HR recovery thresholds and HR deflection point. We tested these parameters for associations with running performance, as measured by peak treadmill speed (PTS) and personal best International Association of Athletics Federations (IAAF) score...
February 23, 2018: Journal of Sports Sciences
Lucas Marques, Emerson Franchini, Gustavo Drago, Marcelo S Aoki, Alexandre Moreira
Block periodization (BP) has been proposed as an alternative approach for application in the context of high-level sports. Despite its growing acceptance, there is no empirical evidence of BP adoption in high-level judo athletes. Therefore, this study aimed to compare the maximal strength, muscle power, judo-specific performances, and hormonal concentration changes of state/national level (NG) and international level (IG) judo athletes subjected to BP. Twenty-one elite judo athletes (international level = 10; 21...
December 2017: Biology of Sport
Christopher M Wilson, Christina L Mitchell, Katherine M Hebert
Cerebellar stroke increases the risk of extensive physical disability and long-term institutionalization. The purpose of this case report is to describe the 14-month longitudinal rehabilitation management and outcomes from the intensive care unit, inpatient rehabilitation unit and outpatient care of a patient after cerebellar stroke. A goal of this case report is to provide rehabilitation clinicians with a long-term perspective and understanding of the course of recovery for a patient after cerebellar cerebrovascular accident or related injury...
December 14, 2017: Curēus
Artur Juszkiewicz, Piotr Basta, Elżbieta Petriczko, Bogusław Machaliński, Jerzy Trzeciak, Karolina Łuczkowska, Anna Skarpańska-Stejnborn
Background: The aim of this study was to analyze the response of selected components of the immune system in rowers to maximal physical exercise, and to verify if this response can be modulated by supplementation with spirulina (cyanobacterium Spirulina platensis ) . Method: The double-blind study included 19 members of the Polish Rowing Team. The subjects were randomly assigned to the supplemented group ( n  = 10), receiving 1500 mg of spirulina extract for 6 weeks, or to the placebo group ( n  = 9)...
2018: Journal of the International Society of Sports Nutrition
Rodney A Kennedy, David Drake
Kennedy, RA and Drake, D. Dissociated time course of recovery between strength and power after isoinertial resistance loading in rugby union players. J Strength Cond Res 32(3): 748-755, 2018-There is a substantial amount of research on the responses to isometric and eccentric loading. However, only a paucity of literature exists on the responses to isoinertial loading, especially in trained athletic populations using realistic loading protocols. The purpose of this study was to examine the acute neuromuscular response to a bout of isoinertial resistance loading in elite rugby players...
March 2018: Journal of Strength and Conditioning Research
Pedro L Valenzuela, Guillermo Sánchez-Martínez, Elaia Torrentegi, Zigor Montalvo, Alejandro Lucia, Pedro de la Villa
PURPOSE: The use of enhanced external counter-pulsation (EECP) as a recovery strategy has increased in recent years owing to its benefits in the clinical setting. However, its claimed effectiveness for the enhancement of exercise recovery has not been analyzed in athletes. The aim of this study was to determine the effectiveness of EECP on short-term recovery after a fatiguing exercise bout. METHODS: 12 elite junior triathletes (16 ± 2 years) participated in this cross-over counterbalanced study...
February 21, 2018: International Journal of Sports Physiology and Performance
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