Abstract：
PURPOSE:This study aimed 1) to define the principal components of physical function assessed by 10 common lower extremity physical performance tests and 2) to derive a reduced-item set of physical performance tests that efficiently and accurately measures raw performance and limb symmetry on each underlying component in pediatric and adolescent athletes. METHODS:This study included healthy, uninjured volunteers (n = 100) between the ages 6 and 18 yr (mean age = 11.7 ± 3.6 yr; 52 females). Subjects performed the stork balance, stork balance on BOSU® Balance Trainer, single leg squat (SLS), SLS on BOSU, clockwise and counterclockwise quadrant single leg hop (SLH), forward SLH, timed SLH, triple crossover SLH, and lower quarter Y-Balance Test™. Item reduction was performed using principal components analysis (PCA). We developed separate principal components analysis for average raw performance and side-to-side limb symmetry, with secondary analyses to evaluate consistency of results by age and sex. RESULTS:We identified two components for average raw performance (accounting for 65.2% of the variance in total test battery) with a reduced-item set composed of five tests, and four components for limb symmetry (accounting for 62.9% of the variance in total test battery) with a reduced-item set of seven tests. The most parsimonious test suitable for screening both average raw performance and limb symmetry would consist of five tests (stork balance on BOSU, SLS on BOSU, forward SLH, timed SLH, and lower quarter Y-Balance Test™). Age- and sex-specific test batteries may be warranted. CONCLUSION:Comprehensive screening for lower extremity average raw performance and limb symmetry is possible with short physical performance test batteries.
journal_name
Med Sci Sports Exercjournal_title
Medicine and science in sports and exerciseauthors
Lentz TA,Magill J,Myers H,Pietrosimone LS,Reinke EK,Messer M,Riboh JCdoi
10.1249/MSS.0000000000002422subject
Has Abstractpub_date
2020-12-01 00:00:00pages
2581-2589issue
12eissn
0195-9131issn
1530-0315journal_volume
52pub_type
杂志文章abstract：:Motivation to engage in health-promoting exercise has been ascribed to global personality traits such as self-esteem or athletic self-confidence. Self-Efficacy Theory challenges this view by proposing that highly specific estimates of personal capabilities mediate adoption of new or difficult behavior patterns. We tes...
journal_title：Medicine and science in sports and exercise
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doi：
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abstract：PURPOSE:A combination of endurance and strength training is generally used to seek further health benefits or enhanced physical performance in older adults compared with either of the training modes alone. The mean change within a training group, however, may conceal a wide range of individual differences in the respon...
journal_title：Medicine and science in sports and exercise
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journal_title：Medicine and science in sports and exercise
pub_type： 临床试验,杂志文章,随机对照试验
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journal_title：Medicine and science in sports and exercise
pub_type： 杂志文章,随机对照试验
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journal_title：Medicine and science in sports and exercise
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journal_title：Medicine and science in sports and exercise
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journal_title：Medicine and science in sports and exercise
pub_type： 临床试验,杂志文章
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journal_title：Medicine and science in sports and exercise
pub_type： 杂志文章,实务指引,评审
doi：10.1249/MSS.0b013e31890eb86
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journal_title：Medicine and science in sports and exercise
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doi：10.1249/MSS.0000000000000890
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pub_type： 杂志文章
doi：10.1249/MSS.0b013e3182300267
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journal_title：Medicine and science in sports and exercise
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doi：10.1249/MSS.0000000000002420
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journal_title：Medicine and science in sports and exercise
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doi：10.1249/00005768-198406000-00007
更新日期：1984-06-01 00:00:00
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journal_title：Medicine and science in sports and exercise
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doi：10.1249/MSS.0000000000002004
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doi：10.1249/MSS.0b013e318162134f
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journal_title：Medicine and science in sports and exercise
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journal_title：Medicine and science in sports and exercise
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doi：10.1249/MSS.0b013e31816770e1
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pub_type： 杂志文章,随机对照试验
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pub_type： 临床试验,杂志文章
doi：
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journal_title：Medicine and science in sports and exercise
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更新日期：1992-07-01 00:00:00
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journal_title：Medicine and science in sports and exercise
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journal_title：Medicine and science in sports and exercise
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：1998-11-01 00:00:00
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journal_title：Medicine and science in sports and exercise
pub_type： 临床试验,杂志文章
doi：10.1097/00005768-200009000-00021
更新日期：2000-09-01 00:00:00
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journal_title：Medicine and science in sports and exercise
pub_type： 杂志文章
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更新日期：2001-08-01 00:00:00
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journal_title：Medicine and science in sports and exercise
pub_type： 杂志文章
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更新日期：2004-01-01 00:00:00
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journal_title：Medicine and science in sports and exercise
pub_type： 杂志文章
doi：10.1249/01.mss.0000135797.09291.71
更新日期：2004-08-01 00:00:00
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journal_title：Medicine and science in sports and exercise
pub_type： 杂志文章
doi：10.1249/MSS.0b013e3181abdfec
更新日期：2009-12-01 00:00:00
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journal_title：Medicine and science in sports and exercise
pub_type： 杂志文章
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更新日期：2009-05-01 00:00:00
