Abstract:
OBJECTIVE:To examine the accuracy of the Caltrac accelerometer for estimating energy expenditure (EE) during three exercise modes. METHODS:A subset of 31 women (mean (SEM) age 22.6 (5) years) as selected from a training study comparing various physiological parameters during race walking, running, and stepping. Subjects each performed mode specific graded exercise tests to peak VO2. Regression equations for VO2 v heart rate (HR) were generated from each individual's test data. EE (kcal and kJ) was estimated for each VO2 value based on the respiratory exchange ratio, and kcal v HR regression equations were generated to predict EE from each subject's HR data (EE-HR). HR in the field was monitored by telemetry, and two Caltrac monitors, one set for EE and one to give counts, were attached to a belt over opposite hips. RESULTS:EE-HR was not significantly different across exercise modes. Caltrac overestimated EE (P < 0.01) in runners (14%) and walkers (19%) but underestimated EE in steppers by about 10% (P = 0.12). CONCLUSIONS:The Caltrac is a reliable instrument but it did not accurately distinguish EE in running, race walking, or stepping in a group of young women.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Swan PD,Byrnes WC,Haymes EMdoi
10.1136/bjsm.31.3.235subject
Has Abstractpub_date
1997-09-01 00:00:00pages
235-9issue
3eissn
0306-3674issn
1473-0480journal_volume
31pub_type
杂志文章abstract::The effects of an intensive 4 week Alpine climbing expedition on percentage body fat, absolute body fat and lean body mass was investigated in 14 adult male students. Anthropometric measures were taken on two occasions during the training period prior to the expedition, twice during the expedition and finally eight we...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.14.2-3.126
更新日期:1980-07-01 00:00:00
abstract::One-third of orbital blowout fractures are sustained during sport. Soccer is most commonly involved. Though visual acuity recovery is usually complete, permanent loss of binocular visual field is almost universal. Typically high-energy blows by opponent's finger, fist, elbow, knee or boot are responsible. Injuries to ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.28.4.272
更新日期:1994-12-01 00:00:00
abstract:OBJECTIVES:To compare versions 8 and 10 of the Orchard Sports Injury Classification System (OSICS) to determine whether the revised version of OSICS has improved its use in a sports medicine setting, and to assess the inter-rater reliability of OSICS-10. METHODS:Injury surveillance data, gathered over a 2 year period ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2008.051979
更新日期:2009-07-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.14.4.229
更新日期:1980-12-01 00:00:00
abstract:BACKGROUND:The relatively young sport of snowboarding exhibits high injury rates. The current efforts to characterise the injury pattern of snowboarders focus largely on the general snowboard population and upper extremity injuries, the most common injury site in snowboarders as a whole. METHODS:In an effort to descri...
journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2013-093019
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Technological limitations associated with oesophageal and rectal temperature probes have previously limited match play observations of body temperature. OBJECTIVE:To investigate the application of an intestinal pill system to measure core temperature during dynamic, field based, soccer matches. METHODS:Cor...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.021980
更新日期:2006-02-01 00:00:00
abstract::Osteoarthritis (OA) is a disabling disease that produces severe morbidity reducing physical activity. Our position statement on treatment of knee OA with viscosupplementation injection (hyaluronic acid, HA) versus steroid (intra-articular corticosteroids, IAS) and placebo (intra-articular placebo, IAP) is based on the...
journal_title:British journal of sports medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bjsports-2015-095683
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:The ability to predict injury is difficult. Prior injury is the only risk factor that has been reported consistently in multiple research studies. Convenient and easy to perform, physical performance tests (PPTs) have great allure as prognostic factors. METHODS:11 PPTs were issued to 359 participants over t...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2015-094885
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:The majority of sporting injuries are clinically diagnosed using history and physical examination as the cornerstone. There are no studies supporting the reliability of making a clinical diagnosis of medial tibial stress syndrome (MTSS). AIM:Our aim was to assess if MTSS can be diagnosed reliably, using his...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsports-2016-097037
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVES:To determine if asymmetry of trunk muscles and deficits of motor control exist among elite cricketers with and without low back pain (LBP). DESIGN:Single-blinded observational quasi-experimental design study SETTING:Assessments were conducted in a hospital setting. PARTICIPANTS:Among a total eligible samp...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2007.044024
更新日期:2008-10-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsm.2010.081992
更新日期:2012-03-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1136/bjsm.35.6.424
更新日期:2001-12-01 00:00:00
abstract::Sleep is fundamental to normal physiological and cognitive function. Sleep promotion strategies have been used extensively in clinical settings, as a treatment for various ailments (ie, insomnia). However, sleep problems are prevalent outside these realms, with 56% of American, 31% of Western European and 29% of Japan...
journal_title:British journal of sports medicine
pub_type: 杂志文章
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更新日期:2016-02-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.28.4.221
更新日期:1994-12-01 00:00:00
abstract:STUDY DESIGN:Descriptive study, cross-sectional design. BACKGROUND:Tennis requires repetitive overhead movement patterns that can lead to upper extremity injury. The scapula plays a vital role in injury-free playing. Scapular dysfunction has been associated with shoulder injury in the overhead athlete. OBJECTIVES:The...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2009.070128
更新日期:2010-07-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
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更新日期:2010-09-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/bjsports-2016-096084
更新日期:2018-02-01 00:00:00
abstract::A case of cervical disc herniation occurring in close association with playing football is reported. The handling of neck injuries in football players is outlined. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.19.1.43
更新日期:1985-03-01 00:00:00
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journal_title:British journal of sports medicine
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更新日期:1993-06-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
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更新日期:2016-03-01 00:00:00
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journal_title:British journal of sports medicine
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更新日期:2014-05-01 00:00:00
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pub_type: 杂志文章,实务指引
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更新日期:2018-11-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章
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更新日期:1995-06-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsports-2020-102710
更新日期:2020-10-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.2005.021402
更新日期:2006-03-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1136/bjsm.2004.011841
更新日期:2005-01-01 00:00:00
abstract:AIM:To study the effect of a warm up schedule on exercise-induced asthma in asthmatic children to enable them to engage in asthmogenic activities. METHOD:In the first study, peak flows during and after three short, repeated warm up schedules (SRWU 1, 2, and 3), identical in form but differing in intensity, were compar...
journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.33.2.100
更新日期:1999-04-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.31.2.143
更新日期:1997-06-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章
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更新日期:2016-06-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1136/bjsm.2008.047837
更新日期:2008-08-01 00:00:00