Comparative analysis of arterial oxygen saturations during exercise by pulse oximetry, photometric measurements, and calculation procedures.

abstract：:The aim of this study was: i) to compute an energy balance of a slalom kayak competition by measuring the percentage contributions of the aerobic and anaerobic energy sources to total metabolic power (E(tot)); and ii) to compare these data with those obtained, on the same subjects, over a flat-water course covered at ...

journal_title：International journal of sports medicine

authors： Zamparo P,Tomadini S,Didonè F,Grazzina F,Rejc E,Capelli C

更新日期：2006-07-01 00:00:00

abstract：UNLABELLED:Often blood screening is repeatedly done in elite athletes although training and competition can affect its results and normal ranges for highly active individuals are widely unknown. This study was conducted to provide reference data in professional soccer players. 467 male soccer players of the 2 highest G...

journal_title：International journal of sports medicine

authors： Meyer T,Meister S

更新日期：2011-11-01 00:00:00

abstract：:In the present prospective longitudinal study 17 male endurance trained athletes (cyclists and triathletes; age 23.4+/-6.7 years, VO2max 61.2+/-7.5 ml x min(-1) x kg(-1); means+/-SD) were investigated both during a state of overtraining syndrome (OT: N=15), mainly induced by an increase of exercise intensity, as well ...

journal_title：International journal of sports medicine

authors： Urhausen A,Gabriel HH,Weiler B,Kindermann W

更新日期：1998-02-01 00:00:00

abstract：:The aim of this study was to examine the effect of defensive pressure on movement behaviour during an under-18 basketball game. 20 international male players (age: M=16.05, SD=2.09 years old; weekly practice: M=10.9, SD=1.94 h; playing experience: M=7.1, SD=1.1 years) played two 10-min basketball quarters, using man-t...

journal_title：International journal of sports medicine

authors： Leite NM,Leser R,Gonçalves B,Calleja-Gonzalez J,Baca A,Sampaio J

更新日期：2014-08-01 00:00:00

abstract：:The purpose of this study was to assess the agreement in body composition measurements of wheelchair athletes using skinfolds, bio-impedance analysis (BIA) and air displacement plethysmography (ADP) relative to dual-energy X-ray absorptiometry (DXA). A secondary objective was to develop new skinfold prediction equatio...

journal_title：International journal of sports medicine

authors： Goosey-Tolfrey V,Keil M,Brooke-Wavell K,de Groot S

更新日期：2016-09-01 00:00:00

abstract：:Fitness, and specifically body composition of football referees requires attention in order to achieve the highest possible standards. The aim of the present study was to describe body composition of elite Spanish football referees over 11 years. Data from 2001 to 2012 pre-seasons were analyzed from a total of 470 ref...

journal_title：International journal of sports medicine

authors： Casajús JA,Gonzalez-Aguero A

更新日期：2015-06-01 00:00:00

abstract：:The aim of the present study was to investigate why blood lactate after prolonged quadriceps contraction during hiking is only marginally increased. Eight sailors performed five 3-min hiking bouts interspersed with 5-s recovery periods. Whole body oxygen uptake, heart rate and lactate were recorded, along with continu...

journal_title：International journal of sports medicine

authors： Vogiatzis I,Tzineris D,Athanasopoulos D,Georgiadou O,Geladas N

更新日期：2008-01-01 00:00:00

abstract：:Male (n = 9) and female (n = 8) collegiate cross-country runners were studied during a training session to determine the amount of iron lost in the sweat. Sweat samples were collected from the arm using polyethylene bags. Total sweat loss was determined by weighing subjects before and after the runs. Average time of s...

journal_title：International journal of sports medicine

authors： Lamanca JJ,Haymes EM,Daly JA,Moffatt RJ,Waller MF

更新日期：1988-02-01 00:00:00

abstract：UNLABELLED:To define the respective roles of the periphery and central oxygen transport in the exercise limitation of heart transplanted patients (HTR), we compared 11 HTR (15.1 +/- 10.8 months after transplantation) to six age and weight matched normal controls (C), during an incremental exercise test (30 W/3 min step...

journal_title：International journal of sports medicine

authors： Mettauer B,Lampert E,Petitjean P,Bogui P,Epailly E,Schnedecker B,Geny B,Eisenmann B,Haberey P,Lonsdorfer J

更新日期：1996-05-01 00:00:00

abstract：:Ten young male adults (mean age 46.9 +/- 1.2 yrs) with 9.2 +/- 1.4 years of weight training experience and the ability to parallel squat at least 1.5 times their body mass were selected as subjects. The exercise session consisted of sets of 10 repetitions at 65% 1-RM of the parallel leg squat, with a cadence of one re...

journal_title：International journal of sports medicine

authors： Nieman DC,Henson DA,Sampson CS,Herring JL,Suttles J,Conley M,Stone MH,Butterworth DE,Davis JM

更新日期：1995-07-01 00:00:00

abstract：:Caffeine enhances endurance performance; however, its effect on accumulated lactate remains unclear. Conversely, taurine, which also enhances endurance performance, decreases accumulated lactate. In this study, the effect of combination of caffeine and taurine on endurance performance was assessed. Mice ran on a tread...

journal_title：International journal of sports medicine

authors： Imagawa TF,Hirano I,Utsuki K,Horie M,Naka A,Matsumoto K,Imagawa S

更新日期：2009-07-01 00:00:00

abstract：:Leukocytes play a central role in asthma physiopathology. Aerobic training (AT) reduces leukocytes recruitment to the airways, but the effects of AT on some aspects of leukocytes activation in asthma are unknown. Therefore, the effects of 4 weeks of AT on airway inflammation, pulmonary and systemic Th2 cytokines level...

journal_title：International journal of sports medicine

authors： Vieira RP,Silva RA,Oliveira-Junior MC,Greiffo FR,Ligeiro-Oliveira AP,Martins MA,Carvalho CR

更新日期：2014-06-01 00:00:00

abstract：:Since doping improves athletic performance, anti-doping policies should have the opposite effect. This analysis examined whether changes in the speed of major cycling races reflect recent anti-doping efforts. Average speeds of 5 (th) place finishers of the Tour de France, Giro d'Italia, and Vuelta a España cycling rac...

journal_title：International journal of sports medicine

authors： Perneger TV

更新日期：2010-04-01 00:00:00

abstract：:Aerobic exercise performance decreases upon ascent to altitude whereas anaerobic performance remains unchanged. Although the effects of 1 - 3 wk of altitude acclimatization on both aerobic and anaerobic exercise performance have been well studied, the effects of short-term altitude acclimatization (i.e., 45 h) on thes...

journal_title：International journal of sports medicine

authors： Burtscher M,Faulhaber M,Flatz M,Likar R,Nachbauer W

更新日期：2006-08-01 00:00:00

abstract：:The ActiPed (FitLinxx) is a uniaxial accelerometer, which objectively measures physical activity, uploads the data wirelessly to a website, allowing participants and researchers to view activity levels remotely. The aim was to validate ActiPed's step count, distance travelled and activity time against direct observati...

journal_title：International journal of sports medicine

authors： Brown DK,Grimwade D,Martinez-Bussion D,Taylor MJ,Gladwell VF

更新日期：2013-05-01 00:00:00

abstract：:This randomized, double-blind, placebo-controlled study examined the influence of 6% carbohydrate ingestion on hormonal and lymphocyte proliferative responses (5 total samples over 9 hours) to 2.5 h of high-intensity running by 30 experienced marathon runners. The T-cell response differed between groups, with the plac...

journal_title：International journal of sports medicine

authors： Henson DA,Nieman DC,Parker JC,Rainwater MK,Butterworth DE,Warren BJ,Utter A,Davis JM,Fagoaga OR,Nehlsen-Cannarella SL

更新日期：1998-11-01 00:00:00

abstract：:Here, we compared the maximal lactate steady state velocity (vMLSS) estimated from a single-visit protocol (v5×2000) to the traditional multi-day protocol (vMLSS). Furthermore, we determined whether there was a lactate steady state during the time limits (Tlim) at vMLSS or v5×2000. Eight runners completed a half marat...

journal_title：International journal of sports medicine

authors： Legaz-Arrese A,Carranza-García LE,Serrano-Ostáriz E,González-Ravé JM,Terrados N

更新日期：2011-11-01 00:00:00

abstract：:The O2 equivalent of lactic acid accumulation in blood was estimated from data on ten subjects acclimatized to altitudes up to 6500 m in the course of a Mt. Everest expedition. The calculated value of the O2 equivalent of La by standard least squares regression was 2.07 +/- 0.4 l O2 for a rise of blood lactic acid con...

journal_title：International journal of sports medicine

authors： Cerretelli P,Binzoni T

更新日期：1990-02-01 00:00:00

abstract：:Uncoupling protein 3 is believed to be involved in total body energy expenditure, including the regulation of fat and glucose metabolism. These biochemical processes may distinguish top ultra-endurance triathletes from slower competitors. The aim of this study was to determine whether the uncoupling protein 3 gene is ...

journal_title：International journal of sports medicine

authors： Hudson DE,Mokone GG,Noakes TD,Collins M

更新日期：2004-08-01 00:00:00

abstract：:Hypertension is not uncommon in childhood and adolescence; vascular and renal causes predominate. Non-pharmacologic therapy, including exercise, may lower blood pressure (BP). There are several articles relating to the use of exercise as a therapy for high BP. Most of these show a beneficial effect. The "dose" of exer...

journal_title：International journal of sports medicine

authors： Alpert BS

更新日期：2000-11-01 00:00:00

abstract：:Within a 3-year period, from 1980 to 1982, 1124 sports injuries of children aged 6-15 years were treated in the Turku University Central Hospital casualty department. Two-thirds (69%) of the injuries were sustained by boys. Sports injuries represented 21% of the diagnoses related to accidents in this age group. Half o...

journal_title：International journal of sports medicine

authors： Kvist M,Kujala UM,Heinonen OJ,Vuori IV,Aho AJ,Pajulo O,Hintsa A,Parvinen T

更新日期：1989-04-01 00:00:00

abstract：:Female runners are reported to be more prone to develop specific knee joint injuries than males. It has been suggested that increased frontal plane joint loading might be related to the incidence of these knee injuries in running. The purpose of this study was to evaluate if frontal plane knee and hip joint kinematics...

journal_title：International journal of sports medicine

authors： Gehring D,Mornieux G,Fleischmann J,Gollhofer A

更新日期：2014-02-01 00:00:00

abstract：:Dietary intake, plasma lipids, lipoprotein and apolipoprotein levels, anthropometric measurements and anaerobic performance were studied in eleven judo athletes during a period of weight maintenance (T1) and after a 7d food restriction (T2). Dietary data were collected using a 7-day diet record. Nutrient analysis indi...

journal_title：International journal of sports medicine

authors： Filaire E,Maso F,Degoutte F,Jouanel P,Lac G

更新日期：2001-08-01 00:00:00

abstract：:The oxygen uptake (VO2) attained during a constant speed 800-m pace trial on a treadmill is less than the maximal VO2 (VO2max) in male middle-distance runners with a high VO2max (i.e., > 65 ml x kg (-1) x min (-1)). We therefore investigated whether the VO2 attained was influenced by the pacing strategy adopted. Eight...

journal_title：International journal of sports medicine

authors： Sandals LE,Wood DM,Draper SB,James DV

更新日期：2006-01-01 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

abstract：:Perceived exertion has been investigated during incremental exercise to exhaustion with athletes, according to the 6-20 scale proposed by Borg (RPE, 1970) and a new scale based on the estimation of exhaustion time (t(lim)) (Estimated Time Limit or ETL, from 1 to 20; ETL= 21 - 2 n, with n = log2t(lim)). ETL increased l...

journal_title：International journal of sports medicine

authors： Garcin M,Vandewalle H,Monod H

更新日期：1999-01-01 00:00:00

abstract：:The influence of exercise training on plasma amino acid concentrations at rest and after exercise was examined in a highly trained group of humans and compared with the response of a control group of nontrained healthy humans. After a bout of intense exercise at the same relative work load, the trained group exhibited...

journal_title：International journal of sports medicine

authors： Einspahr KJ,Tharp G

更新日期：1989-08-01 00:00:00

abstract：:Since the introduction of blood analysis performed before major cycling events in 1997, there have been discussions concerning the quality of the results. The aim of our study therefore was to measure blood samples and compare the results obtained on the field with those obtained in the laboratory. For this it was nec...

journal_title：International journal of sports medicine

authors： Robinson N,Schattenberg L,Zorzoli M,Mangin P,Saugy M

更新日期：2005-04-01 00:00:00

abstract：:The effects of anabolic agents and training on skeletal muscle are believed to be mediated by a variety of growth and transcription factors. Among these regulatory proteins, insulin-like growth factor-I (IGF-I) and androgen receptor (AR) play a crucial role. The purpose of this study was to investigate the effects of ...

journal_title：International journal of sports medicine

authors： Matsakas A,Nikolaidis MG,Kokalas N,Mougios V,Diel P

更新日期：2004-10-01 00:00:00

abstract：:We have studied, on blood samples, the level of immunocompetence (concentration of immune cells, phagocytic process of polymorphonuclear neutrophils, proliferative response of lymphocytes to mitogens), the ascorbic acid content of such immunocompetent cells and the "stress hormone" status (cortisol, ACTH and beta-endo...

journal_title：International journal of sports medicine

authors： Ferrández MD,Maynar M,De la Fuente M

更新日期：1996-11-01 00:00:00