Abstract:
:Although analysis of lactate concentrations with a Yellow Springs Instruments (YSI) automated analyzer has become very popular in Sports Medicine, the accuracy and reliability of this technique has not been carefully studied. Additionally, the influence of a common lysing agent Triton X-100 (TX) on blood lactate measurements has not been determined. Blood was collected from each of ten subjects at rest and 2, 6, 10, 14 and 20 minutes following maximal exercise (60 samples). Lactate concentration was measured by the YSI and Boehringer Mannheim (BMM) techniques. Two YSI 23L analyzers were supplied with buffer with TX (YSITX), and two without (YSINON) to permit comparisons of lysed and unlysed whole blood lactate levels over the physiological range. MANOVA analysis revealed a statistical difference (p less than .05) between duplicates only for one machine, and duplicates of that machine differed by less than 3%. Mean measurements between similarly prepared machines differed significantly for the NONTX machines, but only by less than 3%. Differences were significant between BMM and YSINON, but not between BMM and YSITX. Regression analysis indicated close agreement between BMM and YSITX (R2 = .99). There was a tendency for a large discrepancy between methods at resting concentrations.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Bishop PA,Smith JF,Kime JC,Mayo JM,Tin YHdoi
10.1055/s-2007-1021231subject
Has Abstractpub_date
1992-01-01 00:00:00pages
36-9issue
1eissn
0172-4622issn
1439-3964journal_volume
13pub_type
杂志文章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
pub_type: 杂志文章,评审
doi:10.1055/s-2000-8497
更新日期:2000-11-01 00:00:00
abstract::Food restriction has a great impact on skeletal muscle mass by inducing muscle protein breakdown to provide substrates for energy production through gluconeogenesis. Genetic models of hyper-muscularity interfere with the normal balance between protein synthesis and breakdown which eventually results in extreme muscle ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0032-1312605
更新日期:2013-03-01 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-0032-1327697
更新日期:2013-08-01 00:00:00
abstract::Electromyographic and force production characteristics of leg extensor muscles of elite weight lifters (n = 14) were examined during isometric, concentric, and various stretch-shortening cycle exercises. The data showed that utilization of stored elastic energy of leg extensor muscles was observable in countermovement...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025752
更新日期:1986-06-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1385886
更新日期:2015-02-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2002-23176
更新日期:2002-04-01 00:00:00
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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-2007-1024832
更新日期:1990-12-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2003-38205
更新日期:2003-02-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2003-45256
更新日期:2004-04-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1395586
更新日期:2015-05-01 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-0033-1337944
更新日期:2013-11-01 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
pub_type: 杂志文章
doi:10.1055/s-2004-830495
更新日期:2005-04-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025751
更新日期:1986-06-01 00:00:00
abstract::We recently demonstrated that creatine supplementation increased some features of lung allergic sensitization in mice. On the other hand, other studies have shown that aerobic exercise inhibited allergic airway inflammation and remodeling. We hypothesized that aerobic exercise may decrease the exacerbatory effects of ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0029-1224176
更新日期:2009-09-01 00:00:00
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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
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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
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0044-100793
更新日期:2018-10-01 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-2008-1038432
更新日期:2008-10-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025760
更新日期:1986-08-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-865633
更新日期:2006-03-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1026031
更新日期:1983-08-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2006-923856
更新日期:2007-01-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-972716
更新日期:1997-07-01 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
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2004-821303
更新日期:2004-11-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0031-1284341
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-2007-973025
更新日期:1995-08-01 00:00:00
abstract::Fourteen male physical education students performed a single bout of running until exhaustion on the treadmill at 22 km/h and 7.5% slope. They received single oral doses of 100 mg bupranolol (nonselective beta-blockade), 100 mg metoprolol (beta-1-selective blockade), and placebo 60-90 min before running. Arterialized ...
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-2008-1026050
更新日期:1983-11-01 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
pub_type: 杂志文章
doi:10.1055/s-2007-971089
更新日期:1999-01-01 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
pub_type: 杂志文章
doi:10.1055/s-0034-1398583
更新日期:2015-05-01 00:00:00