Abstract：
:This study investigated whether the combination of internal precooling (PC) and internal midcooling (MC cooling during exercise) would enhance performance more than MC alone. 9 trained males completed two 30-km cycling trials in a hot and humid environment (WBGT: 29±0.7°C, 80±0.02% relative humidity). For 30 min before exercise, the subjects sat quietly and drank water at 23°C (MC) or 3°C (PC+MC). During the MC and PC+MC time trials, they drank an ice-slush/menthol beverage (i. e., 0.025% menthol). Trial time, gastrointestinal temperature (Tco ), heart rate (HR), rating of perceived exertion (RPE), thermal sensation (TS), and thermal comfort (TC) were assessed. Trial time was not significantly different (P>0.05) between MC and PC+MC (3 737±552 s and 3 815±455 s). Before exercise, Tco was lower with precooling (37.0±0.3°C; P<0.02). During exercise, no between-trial differences were noted for Tco, HR, RPE, TC or TS, but RPE was significantly lower with PC+MC in the latter stages (P<0.05). (1) Cold beverage intake before exercise did not improve the subsequent exercise performance with ice-slush/menthol beverage intake, and (2) despite no improvement in performance, RPE declined in the latter stages of exercise in the condition of PC+MC, suggesting that this combination might be beneficial for longer exercise.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Riera F,Trong TT,Rinaldi K,Hue Odoi
10.1055/s-0042-107597subject
Has Abstractpub_date
2016-12-01 00:00:00pages
1025-1031issue
13eissn
0172-4622issn
1439-3964journal_volume
37pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1055/s-2007-973013
更新日期：1995-07-01 00:00:00
abstract：:The hypothesis that blood biochemical measurements of iron (Fe), copper (Cu), magnesium (Mg) and zinc (Zn) nutritional status and dietary intakes of these minerals are useful predictors of 100-yd free-style swimming performance during actual competition was examined in five female and five male collegiate swimmers. Di...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-972891
更新日期：1996-10-01 00:00:00
abstract：:Sports influence the hypothalamus-pituitary-gonadal axis (HPG). The purpose of this study was to analyze the effects of physical stress on qualitative male LH secretion. We evaluated the HPG axis at rest and the LH response to a treadmill exercise (90 % of Vdot;O 2 max) in eight trained (running 50 to 70 km/week) and ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2002-33149
更新日期：2002-07-01 00:00:00
abstract：:Hormonal and metabolic parameters were studied for two teams after a football match. Blood samples were collected before the start, at half-time, at the end, and 45 and 90 min after the end of the game. In the first team, ACTH, cortisol, and lactate levels increased significantly during the whole match to resume basal...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025732
更新日期：1986-02-01 00:00:00
abstract：:Recompression during decompression has been suggested to possibly reduce the risk of decompression sickness (DCS). The main objective of the current study was to investigate the effects of FLIRT (First Line Intermittent Recompression Technique) on bubble detection in man. 29 divers underwent 2 simulated dives in a dry...
journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
doi：10.1055/s-0032-1306328
更新日期：2012-11-01 00:00:00
abstract：:Carbon monoxide (CO) rebreathing procedures are used to assess hemoglobin mass (Hbmass) but recent evidence suggests that CO is a signaling molecule that may alter physiological functions. We examined the effects of 10 days of intermittent, low-dose CO inhalation on Hbmass, aerobic performance predictors, and peak-pow...
journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
doi：10.1055/s-0042-108197
更新日期：2016-10-01 00:00:00
abstract：:The purpose of this investigation was to study the attitude toward physical activity in young patients with cystic fibrosis (CF) and the influence of 2 weeks of training on physical fitness and spirometric values. Two groups of CF patients with mean ages of 11 and 15 years, respectively (total of 13 patients, range 9-...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1025058
更新日期：1988-02-01 00:00:00
abstract：:The effects of physical activity (PA) on bioenergetic characteristics were studied in 53 prepubertal boys. Maximal oxygen consumption (VO2max; direct method), maximal anaerobic power (Pmax, force-velocity test), and mean power in 30 s (P30s, Wingate test) were compared (mean +/- SD) in three groups of boys of the same...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1021208
更新日期：1993-11-01 00:00:00
abstract：:This study compared rectal temperature (Tre), heat sensation and sweating between obese and non-obese boys during cycling in the heat. Participants (aged 12-15 years) were 17 obese and 16 non-obese (BMI=29.4±4.3 and 16.8±1.7 kg · m⁻², respectively) boys. They cycled for 30-min (50-55% VO(2peak)) in a climatic chamber ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0031-1301314
更新日期：2012-06-01 00:00:00
abstract：:Because previous researchers have reported a reduced lactic acid production that accompanies a delayed or an absent ventilatory threshold (VTh) in water-based exercise, we hypothesized that the metaboreflex, activated by muscle acidosis, might be absent in fin swimming. This motor response, delaying the occurrence of ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0030-1251993
更新日期：2010-08-01 00:00:00
abstract：:Creatine supplementation has become a common practice among competition athletes participating in different sports over the last few years. The mechanism by which supplementary creatine could have potential ergogenic effects would be an increased muscle creatine and phosphocreatine concentration, leading to a higher r...
journal_title：International journal of sports medicine
pub_type： 杂志文章,meta分析
doi：10.1055/s-2007-972670
更新日期：1997-10-01 00:00:00
abstract：:To investigate the effect of a transition program of simulated barefoot running (SBR) on running kinematics and foot-strike patterns, female recreational athletes (n=9, age 29 ± 3 yrs) without SBR experience gradually increased running distance in Vibram FiveFingers SBR footwear over 12 weeks. Matched controls (n=10, ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0033-1353215
更新日期：2014-05-01 00:00:00
abstract：:This study compared physical characteristics (body height [BH], body mass [BM], body fat [BF], and fat free mass [FFM]), one repetition maximum bench press (1RM (BP)), jumping explosive power (VJ), handball throwing velocity, power-load relationship of the leg and arm extensor muscles, 5- and 15-m sprint running time,...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-964989
更新日期：2007-10-01 00:00:00
abstract：:Two well-trained speed-skaters were subjected to a biomechanical analysis incorporating push-off forces, cinematographic data, and link segment modeling. To gain knowledge on the backgrounds on technique and performance in speed-skating, the muscle coordination was studied by EMG and muscle contraction velocities. In ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025688
更新日期：1987-12-01 00:00:00
abstract：:Pulse oximetry allows non-invasive monitoring of arterial oxygen saturation (SO2). To study the validity of pulse oximetry, comparative measurements were performed. During exhaustion limited exercise SO2-values measured by pulse oximetry (SO2puls), calculated SO2-values (algorithms of Kelman, Severinghaus, and Siggaar...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1024756
更新日期：1990-02-01 00:00:00
abstract：:The aim of the present study was to identify anthropometric, physical, coordinative and ice-skating specific characteristics that discriminate young elite ice skaters from non-elite skaters and their non-skating peers. 32 skaters aged 9-12 years old (11 elites and 21 non-elites) voluntarily participated in the study. ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0042-100280
更新日期：2016-06-01 00:00:00
abstract：:This study examined the effects of a pre-experimental period of arm exercise followed by a 24-h carbohydrate (CHO)-poor intake, intended to reduce initial hepatic glycogen levels, on substrate and endocrine responses during prolonged CHO-loaded leg exercise. Seven subjects pedaled a cycle ergometer for 60 min at 62% V...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1055/s-2008-1025897
更新日期：1984-06-01 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
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1055/s-2007-1021302
更新日期：1992-08-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/a-0923-9144
更新日期：2019-08-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
doi：10.1055/s-0031-1283175
更新日期：2011-12-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2003-45262
更新日期：2004-04-01 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
pub_type： 杂志文章
doi：10.1055/s-0033-1358477
更新日期：2014-06-01 00:00:00
abstract：:One hundred and three women who were habitual distance runners and 74 age-matched physically inactive women provided three-day diet records. Intergroup differences in intakes of energy nutrients, micronutrients, cholesterol and fiber were evaluated via analysis of variance and, to assess qualitative differences, via a...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1024838
更新日期：1990-12-01 00:00:00
abstract：:During rowing, the respiratory musculature is confronted with dual demands: assisting the propulsive force generation and as the effector for ventilatory control. We determined the pulmomechanical and breathing pattern features of rowing-induced hyperpnea in five national class rowers (18 years old). Each subject perf...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1021217
更新日期：1993-09-01 00:00:00
abstract：:We compared 3 months of eucaloric (12 kcal/kg/wk) steady state aerobic training (AER) to interval training (INT) in men at risk for insulin resistance. Primary outcomes included oral glucose tolerance testing (OGTT) and HOMA-IR 24 h and 72 h after each participants last exercise session. Secondary outcomes were VO2max...
journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
doi：10.1055/s-0032-1311594
更新日期：2013-04-01 00:00:00
abstract：:The present study was designed to evaluate the influence of starch structure on muscle glycogen resynthesis and cycling performance. Eight male cyclists (22 +/- 1 yr) completed an exercise protocol (DP) to decrease vastus lateralis glycogen concentration. This exercise consisted of 60 min cycling at 75% VO2max, follow...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
doi：10.1055/s-2007-972863
更新日期：1996-07-01 00:00:00
abstract：:This study was undertaken to evaluate the effects of the supine posture, immersion, and swimming on hormones involved in the regulation of hydrosaline equilibrium. Plasma levels of atrial natriuretic peptide (ANP), arginine vasopressin (AVP), plasma renin activity (PRA), and aldosterone (ALDO) were measured by radioim...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1024933
更新日期：1989-12-01 00:00:00
abstract：:The current study aimed to determine the effects of sildenafil-associated aerobic exercise training (ET) on the physical performance, hemodynamic, autonomic and inflammatory parameters of rats. Male Wistar rats were randomly assigned to: sedentary rats placebo-treated (SP); sedentary rats sildenafil-treated (SS); trai...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/a-0633-9132
更新日期：2018-10-01 00:00:00
abstract：:The purpose of this study was to assess the intensity and energy cost of dance simulation in relation to the American College of Sports Medicine (ACSM) recommendations on the quantity and quality of exercise for developing and maintaining cardiorespiratory fitness, and to assess its safety. Forty subjects (21 males an...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2002-20132
更新日期：2002-02-01 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
pub_type： 杂志文章,评审
doi：10.1055/s-2007-972589
更新日期：1997-01-01 00:00:00
