Abstract：
:The purpose of this study was to establish the validity of a 90-s all-out test for the estimation of maximal oxygen uptake (V.O (2max)) and submaximal aerobic ability as represented by critical power. We hypothesized that the fall in power output by the end of the 90-s all-out test (end power) would represent the exhaustion of anaerobic work capability, and as such, would correspond with the critical power. Sixteen active individuals (mean +/- SD: 30 +/- 6 years; 69.6 +/- 9.9 kg) carried out a series of tests: (i) an incremental ramp test to determine V.O (2max), (ii) three fixed-work rate trials to exhaustion to determine critical power, and (iii) two 90-s all-out tests to measure end power and peak V.O (2). End power (292 +/- 65 W) was related to (r=0.89) but was significantly higher (p<0.01) than critical power (264 +/- 50 W). The mean +/- 95 % limits of agreement (29 +/- 65 W) were too low to use these variables interchangeably. The peak V.O (2) in the 90-s trial was significantly lower than the V.O (2max) (3435 +/- 682 ml x min (-1) vs. 3929 +/- 784 ml x min (-1); p<0.01); mean +/- 95 % limits of agreement was equal to 495 +/- 440 mL x min (-1). The 90-s all-out test cannot, therefore, assess both V.O (2max) and critical power in adult performers. The duration of all-out exercise required to allow V.O (2) to attain its maximum is longer than 90 s.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Brickley G,Dekerle J,Hammond AJ,Pringle J,Carter Hdoi
10.1055/s-2006-924513subject
Has Abstractpub_date
2007-05-01 00:00:00pages
414-9issue
5eissn
0172-4622issn
1439-3964journal_volume
28pub_type
杂志文章abstract：:The aim of this study was to compare heart rate variability (HRV) recovery after two iso-volume (5 km) exercises performed at different intensities. 14 subjects volunteered (25.17±5.08 years; 74.7±6.28 kg; 175±0.05 cm; 59.56±5.15 mL·kg(-1)·min(-1)) and after determination of peak oxygen uptake (VO2Peak) and the speed ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0042-100292
更新日期：2016-06-01 00:00:00
abstract：:Inhibition of adipose tissue lipolysis, leading to a reduced availability of non-esterified fatty acids for energy production in the active skeletal muscles, may be involved in the impairment of endurance exercise capacity after administration of a beta-adrenoceptor blocking agent. The effect of increasing the availab...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：1993-01-01 00:00:00
abstract：:The aim of the current study was to determine the validity of an automated multiple-camera tracking system (Venatrack™), for the measurement of speed during soccer. 18 recreationally active males (mean age 27±8.6 years) performed a series of runs (total 391), representative of the movements made by soccer players, at ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0032-1306326
更新日期：2012-08-01 00:00:00
abstract：:The present study examined the behaviour of the Achilles tendon (AT) - triceps surae (TS) muscle complex during running and long jump take-off. High AT forces were measured in the push-off phase in running even with very low EMG activity. In the long jump, high rate of stiffness development was a characteristic of the...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
doi：10.1055/s-2003-39082
更新日期：2003-04-01 00:00:00
abstract：:The accumulated O2 deficit (the difference between the estimated energy demand and the actual O2 uptake) was determined during intense exhaustive exercise (2-7 min) in elite athletes, and its relationship with muscle buffer capacity, muscle enzymes and muscle morphology was examined. Five oarsmen, fifteen soccer playe...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1021165
更新日期：1993-05-01 00:00:00
abstract：:The 1982 Aberdeen marathon race was held on a cool (12 degrees C) day on a flat, fast course. Fifty-nine of the 750 runners volunteered to take part in this study: rectal temperature of these competitors was measured within 5 min of completing the race. Venous blood samples were obtained before and immediately after t...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025806
更新日期：1985-02-01 00:00:00
abstract：:The purpose of this study was to assess the reliability of a pre-loaded 1 500-m treadmill time trial, conducted in moderate normobaric hypoxia. 8 trained runners/triathletes (24±3 years, 73.2±8.1 kg, 182.5±6.5 cm, altitude specific V˙O2max: 52.9±5.5 ml·kg(-1)·min(-1)) completed 3 trials (the first as a familiarisation...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0042-108651
更新日期：2016-09-01 00:00:00
abstract：:The indirect identification of doping in sports can be performed by assessing athletes' hematological perturbations from the analysis of blood collected on different occasions. Because prosecution for doping based on this information requires expensive and time-consuming interpretation of blood analysis results by var...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/a-1019-7774
更新日期：2020-01-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-972881
更新日期：1996-10-01 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：:In young elite athletes the influence of a sensorimotor training (SMT = balance training) on strength, jump height and spinal reflex excitability was compared with adaptations induced by strength training (ST). Seventeen athletes were randomly assigned to either a SMT or a ST group. Before and after 6 weeks of trainin...
journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
doi：10.1055/s-2007-964996
更新日期：2007-12-01 00:00:00
abstract：:Fluid-regulating hormones [arginine vasopressin (AVP) and aldosterone] as well as electrolytes, plasma volume (PV), and plasma proteins were studied in 16 well-trained male amateur runners (mean age 31.8 years) before t0), immediately after (t1), and 60 min (t2) and 22 h (t3) after a marathon run. Immediately after th...
journal_title：International journal of sports medicine
pub_type： 杂志文章,评审
doi：10.1055/s-2007-1024914
更新日期：1989-08-01 00:00:00
abstract：:Eight competitive racewalkers were studied to determine a) the speed where running and racewalking become equally efficient, b) if, at a similar VO2, the physiologic responses to submaximal exercise differ between running and racewalking, and c) if VO2 max can be attained during racewalking. The speed at which running...
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-2008-1025883
更新日期：1984-04-01 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
pub_type： 杂志文章,评审
doi：10.1055/s-2007-972589
更新日期：1997-01-01 00:00:00
abstract：:The aims of this pilot study were to investigate how a novel sagittal plane kinematic measurement - the lower extremity contact angle (LECA) - relates to the landing dynamics of elite male volleyball athletes with and without patellar tendinopathy. The LECA was defined as the angle between the ground and the line conn...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0034-1395586
更新日期：2015-05-01 00:00:00
abstract：:External counterpulsation (ECP), an electrocardiogram-led sequential compression of lower limbs, has been recently proposed for sports recovery, but research is scant. This study examined the effects of an ECP session upon neuromuscular function (vertical jump and torque/velocity characteristics), biochemical response...
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
abstract：:Vascular endothelial growth factor (VEGF) is a key compound for induction of angiogenesis in both physiological and pathological conditions. The aim of this study was to investigate the effect of androgenic-anabolic steroids (AAS) administration on VEGF mRNA expression in the rat soleus muscle after jumping training. ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0029-1234058
更新日期：2009-11-01 00:00:00
abstract：:Earlier studies of endurance athletes have shown decreased levels of secretory IgA and an increased frequency of upper respiratory tract (URT) infections after periods of hard training. In this study, 14 world-class canoeists were studied during very hard physical training, after lower-intensity training combined with...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-972838
更新日期：1996-04-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0043-117178
更新日期：2017-11-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章,评审
doi：10.1055/s-2008-1025736
更新日期：1986-04-01 00:00:00
abstract：:Participation in aerobic dance is associated with a number of lower extremity injuries, and abnormal joint loading seems to be a factor in these. However, information on joint loading is limited. The purpose of this study was to investigate the kinetics of the lower extremity in step aerobic dance and to compare the d...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0032-1311649
更新日期：2012-11-01 00:00:00
abstract：:Prolonged altitude exposure usually leads to considerable weight loss of which a large part is from muscle tissue. This loss reduces maximum alactic anaerobic muscle power. It was hypothesized that most of the weight loss may simply be the result of malnutrition due to lack of palatable food in an uncomfortable enviro...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1021171
更新日期：1993-07-01 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
pub_type： 杂志文章
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更新日期：2014-05-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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更新日期：2010-08-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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更新日期：1999-08-01 00:00:00
abstract：:This study examined the influence of 28 days of dietary carbohydrate (CHO) supplementation on plasma cytokine responses to cycle ergometry. Sixteen highly trained male cyclists and triathletes (age: 30.6+/-5.6 y; VO2max: 64.8+/-4.7 mL x kg(-1) x min(-1); mean+/-SD) participated in the study. One group (n=8) consumed a...
journal_title：International journal of sports medicine
pub_type： 杂志文章
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更新日期：2010-03-01 00:00:00
abstract：:The aim of this study was to examine the relationship between anthropometry, physical capacity, and sprint swimming performance in swimmers of both genders aged 12 - 14 years old. Anthropometric characteristics (body height and mass, total upper extremity, hand and foot lengths, chest circumference, certain body bread...
journal_title：International journal of sports medicine
pub_type： 杂志文章
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更新日期：2005-03-01 00:00:00
