Reproducibility of self-paced treadmill performance of trained endurance runners.

abstract：:This study investigated the effects of marine phytoplankton supplementation on 1) perceived recovery and ground reaction forces in humans following a non-functional overreaching resistance-training program and 2) myogenic molecular markers associated with muscle cell recovery in a rat model. In the human trial, a 5-we...

journal_title：International journal of sports medicine

authors： Sharp MH,Sahin K,Stefan MW,Gheith RH,Reber DD,Ottinger CR,Orhan C,Tuzcu M,Sahin N,Lowery RP,Durkee S,Wilson JM

更新日期：2020-12-22 00:00:00

abstract：:During the world junior speed skating championship 2002 all athletes (60 males, 56 females) were subjected to hematologic blood testing one day before the competition as requested by International Skating Union--ISU. This study aimed to obtain hematological reference values for junior athletes, whilst the influence of...

journal_title：International journal of sports medicine

authors： Mayr A,Kuipers H,Falk M,Santer P,Wierer B

更新日期：2006-04-01 00:00:00

abstract：:Low back pain (LBP) is a common symptom in the populations of western countries, and adolescent athletes seem to be prone to LBP. The main objective of this study was to analyze the point (LBP within the last 48 h), 1-year (LBP within the last 12 months) and lifetime (LBP within the entire life) prevalence rates of LB...

journal_title：International journal of sports medicine

authors： Schmidt CP,Zwingenberger S,Walther A,Reuter U,Kasten P,Seifert J,Günther KP,Stiehler M

更新日期：2014-07-01 00:00:00

abstract：:This study investigated whether 4 weeks of daily supplementation with 500 or 1000 mg of Vitamin C and 500 or 1000 IU of Vitamin E could modify biochemical and ultrastructural indices of muscle damage following a 21 km run. Fifteen experienced male distance runners were divided into two groups (vitamin or placebo) and ...

journal_title：International journal of sports medicine

authors： Dawson B,Henry GJ,Goodman C,Gillam I,Beilby JR,Ching S,Fabian V,Dasig D,Morling P,Kakulus BA

更新日期：2002-01-01 00:00:00

abstract：:Highly repetitive submaximal intermittent contractions of the forearm muscles during periods of 30-50 min partially explain why motorcycle races are so demanding for the neuromuscular system. This study investigated the contribution of central and peripheral mechanisms of fatigue on the exerted and contralateral exten...

journal_title：International journal of sports medicine

authors： Torrado P,Cabib C,Morales M,Valls-Sole J,Marina M

更新日期：2015-11-01 00:00:00

abstract：PURPOSE:The modified Dmax method can accurately determine the second lactate threshold (LT2), which is valuable for predicting aerobic performance and prescribing exercise. The purpose of this study is to determine if the modified Dmax method can accurately find thresholds in VE (VT2), VCO2 (VCO2T), RER (RERT), and RR ...

journal_title：International journal of sports medicine

authors： Elmer DJ,Toney M

更新日期：2018-04-01 00:00:00

abstract：:Over 30 years ago hemodynamic studies on patients with high altitude pulmonary edema (HAPE) excluded the prior contention that the basic cause was left ventricular failure and correctly implicated the pulmonary circulation as the culprit. Physiological studies during the acute stage have revealed a normal pulmonary ar...

journal_title：International journal of sports medicine

authors： Hultgren HN

更新日期：1997-01-01 00:00:00

abstract：:Controversy exists as to whether plasma volume (PV) expansion has the potential to increase maximal oxygen uptake (VO2max). In the present study, VO2max and exercise time to fatigue were measured in nine untrained men when plasma volume (PV) was normal and then again on the next day following two levels of PV expansio...

journal_title：International journal of sports medicine

authors： Coyle EF,Hopper MK,Coggan AR

更新日期：1990-04-01 00:00:00

abstract：:An in vitro method has been developed of cultivating anatomically intact articular cartilage (humeral head of dog) while excluding both bone tissue and other connective tissues with a condom, which controls changes in hydration and minimizes loss of proteoglycans. Compressive loading experiments were carried out with ...

journal_title：International journal of sports medicine

authors： Müller G,Hanschke M

更新日期：1997-08-01 00:00:00

abstract：:Physical exercise is associated with increases of serum and salivary levels of cortisol. The concomitant increase in serum lactate has been implicated as one of the mechanisms responsible for adrenocortical activation. We evaluated the responses of serum lactate and serum and salivary cortisol to an acute bout of high...

journal_title：International journal of sports medicine

authors： Paccotti P,Minetto M,Terzolo M,Ventura M,Ganzit GP,Borrione P,Termine A,Angeli A

更新日期：2005-11-01 00:00:00

abstract：:The energy cost of the forms of locomotion discussed throughout this article is summarized in Table 9. This table, as well as the preceding sections of this article, are designed to provide a rather comprehensive and simple set of information for potential readers: medical doctors, who should be able to prescribe to t...

journal_title：International journal of sports medicine

authors： di Prampero PE

更新日期：1986-04-01 00:00:00

abstract：:To study the hypothesis that more severe damage, caused by controlled lengthening (L) contractions, results in greater myofiber hypertrophy compared to increase in fiber size followed shortening (S) contractions, tibialis anterior muscles of anesthesized male Wistar rats were subjected to 240 either L or S contraction...

journal_title：International journal of sports medicine

authors： Komulainen J,Kalliokoski R,Koskinen SO,Drost MR,Kuipers H,Hesselink MK

更新日期：2000-02-01 00:00:00

abstract：:We studied the effects of a twelve months endurance-training program on exercise-induced change in blood contents in thirteen rowers. A standardized testing-session (18 km rowing at 80 % of VO2max) was performed 19 times during the training program. Capillary blood samples were taken at rest and immediately post-exerc...

journal_title：International journal of sports medicine

authors： Petibois C,Cazorla G,Déléris G

更新日期：2003-01-01 00:00:00

abstract：:The aim of the present study was to understand if sport improves attention symptoms, social competency, and cognitive functions in children with attention deficit and hyperactivity disorder (ADHD). The present study was designed as a 6-week, prospective trial, including 12 sessions of education/sports therapy. 13 ADHD...

journal_title：International journal of sports medicine

authors： Kang KD,Choi JW,Kang SG,Han DH

更新日期：2011-12-01 00:00:00

abstract：:Duplicate haemoglobin mass (Hbmass) measurements are recommended before and after altitude training sojourns to identify individual adaptations in athletes with a high level of certainty. Duplicate measurements reduce typical error (TE) and disclose measurement outliers, but are usually made on separate days, which is...

journal_title：International journal of sports medicine

authors： Naef N,Steiner T,Wehrlin JP

更新日期：2015-05-01 00:00:00

abstract：:Brain 5-HT neurotransmission has been described to be down-regulated in depressed people, and also suspected to be changed in overtraining state, the consequence of long-term physical overloading and stress in athletes. We studied brain serotonin (5-HT) transporter binding i.e., 5-HT reuptake with the specific radioli...

journal_title：International journal of sports medicine

authors： Uusitalo AL,Vanninen E,Valkonen-Korhonen M,Kuikka JT

更新日期：2006-09-01 00:00:00

abstract：:This study examined the physiological responses to cold stimulus during intermittent high-intensity exercise simulating on-snow alpine ski training. 7 male alpine skiers performed intermittent high-intensity exercises composed of 4 bouts of cycling exercise at 140% VO 2max intensity for 30 s with 10-min rests on a cyc...

journal_title：International journal of sports medicine

authors： Suzuki E,Ohya T,Ito R,Matsumoto T,Kitagawa K

更新日期：2014-05-01 00:00:00

abstract：:The determination of anaerobic capacity (AC) using treadmill ergometry is problematic from a methodological, as well as a technical standpoint. In this study, a procedure from Monod and Scherrer was modified to examine whether realistic magnitudes of AC could be determined using three subject groups with different lev...

journal_title：International journal of sports medicine

authors： Striegel H,Emde F,Ploog N,Roecker K,Horstmann T,Dickhuth HH

更新日期：2005-09-01 00:00:00

abstract：:The ventilatory (anaerobic) threshold during short-term exercise has been defined as the O2 uptake (VO2) immediately below the VO2 at which pulmonary ventilation (VE) increases disproportionally relative to VO2 and the ventilatory threshold for long-term exercise as the VO2 immediately below the VO2 at which the VE co...

journal_title：International journal of sports medicine

authors： Reybrouck T,Ghesquiere J,Weymans M,Amery A

更新日期：1986-02-01 00:00:00

abstract：:We tested the hypothesis that the initial heart rate (HR) response at the onset of maximal handgrip contraction is altered after training. 17 volunteers (nine trained and eight controls) performed ten intermittent static handgrip contractions with maximal effort, alternating between 15-s contractions and 15-s pauses. ...

journal_title：International journal of sports medicine

authors： Hachiya T,Blaber AP,Aizawa S,Saito M

更新日期：2008-08-01 00:00:00

abstract：:Aerobic performance is negatively impacted by tropical climate due to impairment of thermoregulatory mechanisms. We tested the hypothesis that a torso application of a 4% menthol solution would have the same effect on a best performance 10-km run as an external use of cold water. Thirteen trained male athletes complet...

journal_title：International journal of sports medicine

authors： Hermand E,Collado A,Hue O

更新日期：2020-03-01 00:00:00

abstract：:Cyclists often use heart rate limits or power output zones, obtained from lactate parameters during incremental exercise testing, to control training intensity. However, the relationship between heart rate or power output, and blood lactate can be changed by several factors including dehydration. Therefore, in the cur...

journal_title：International journal of sports medicine

authors： Van Schuylenbergh R,Vanden Eynde B,Hespel P

更新日期：2005-12-01 00:00:00

abstract：:The aim of this study was to determine if stepping cadence when controlling for total steps has a differential impact on regional vascular function. 16 young adults (21±2 years) performed fast (125 steps per min) and slow (80 steps per min) walking for a total of 3 000 steps on separate days. Doppler ultrasound was us...

journal_title：International journal of sports medicine

authors： Compton RO,Ulcak M,Gonzales JU

更新日期：2015-11-01 00:00:00

abstract：:This study aimed to describe injury/illness rates in ultratrail runners competing in a 65-km race to build a foundation for injury prevention and help race organizers to plan medical provision for these events. Prospectively transcribed medical records were analysed for 77 athletes at the end of the race. Number of in...

journal_title：International journal of sports medicine

authors： Vernillo G,Savoldelli A,La Torre A,Skafidas S,Bortolan L,Schena F

更新日期：2016-06-01 00:00:00

abstract：:The present paper reviews evidence for the role of specific amino acids in the etiology of fatigue and the overtraining syndrome in athletes. An increase in the plasma concentration ratio of free tryptophan: branched-chain amino acids may mediate an increase in 5-HT synthesis in the brain and thus induce fatigue durin...

journal_title：International journal of sports medicine

authors： Parry-Billings M,Blomstrand E,McAndrew N,Newsholme EA

更新日期：1990-05-01 00:00:00

abstract：:In 1988 Segura and Ventura (14) reported that 1.2 g of L-Tryptophan (L-TRY) supplementation increased total exercise time by 49.4% when the subjects were running at 80% of maximal oxygen uptake (VO2max). In human performance research, acute improvements of that category are rather uncommon. Both for this reason and be...

journal_title：International journal of sports medicine

authors： Stensrud T,Ingjer F,Holm H,Strømme SB

更新日期：1992-08-01 00:00:00

abstract：:Seventeen healthy male volunteers participated in this study designed to compare arterial with both arterialized venous and venous lactate kinetics after short exercise. Blood samples drawn before, during, and after bicycle exercise were analyzed continuously for lactate. A mathematical function incorporating two expo...

journal_title：International journal of sports medicine

authors： Oyono-Enguelle S,Gartner M,Marbach J,Heitz A,Ott C,Freund H

更新日期：1989-02-01 00:00:00

abstract：:To examine torque variability in 2 antagonistic muscles 20 individuals performed maximal and submaximal (5, 10, 20, 50 and 75% of Maximal Voluntary Contraction, MVC) isometric wrist flexions and extensions (5 s) at 5 different angles (230, 210, 180, 150 and 130°). The EMG activity of Flexor Carpi Ulnaris (FCU) and Ext...

journal_title：International journal of sports medicine

authors： Salonikidis K,Amiridis IG,Oxyzoglou N,Giagazoglou P,Akrivopoulou G

更新日期：2011-10-01 00:00:00

abstract：:Neuromuscular activity of the lower leg is dependent on the task performed, speed of movement and gender. Whether training volume influences neuromuscular activity is not known. The EMG of physically active persons differing in running mileage was analysed to investigate this. 55 volunteers were allocated to a low (LM...

journal_title：International journal of sports medicine

authors： Baur H,Hirschmüller A,Müller S,Cassel M,Mayer F

更新日期：2012-01-01 00:00:00

abstract：:Skeletal muscle, as a producer of glutamine, is important for lymphocytes, monocytes and macrophages. Exercise-induced muscle damage could burden the immune system by concurrently eliciting a local inflammatory response and decreasing glutamine availability. The aim of this study was to determine whether blood leukocy...

journal_title：International journal of sports medicine

authors： Miles MP,Naukam RJ,Hackney AC,Clarkson PM

更新日期：1999-07-01 00:00:00