Abstract：
:This study aimed to determine whether the landing phase of a drop landing (DL) differed with respect to a complete jumping and landing task, a spike jump (SJ), and whether fatigue altered the landing of these movements. Fourteen male volleyball players performed five DL and SJ in a counterbalanced order under two experimental conditions: non-fatigued and fatigued. Fatigue, induced by repetitive jumping sets, was confirmed by decrements in vertical jump height >25% and increased blood lactate >6 mmol/L. Each landing task was characterized by the resultant ground reaction forces (GRF), sagittal plane kinematics and muscle recruitment patterns of six lower extremity muscles. Two-way repeated analysis of variance results indicated a main effect of movement on many of the GRF, kinematic and electromyographic variables characterizing landing, indicating that the two tasks required substantially different lower limb biomechanics during landing. Although fatigue did not alter the GRF in either task, there were significant movement x fatigue condition interactions. The significant between-task differences in the biomechanical variables characterizing landing and the differential effects of fatigue on each landing task, question the validity of using a DL as an experimental task to investigate lower limb landing mechanics of whole jumping and landing movements.
journal_name
Scand J Med Sci Sportsjournal_title
Scandinavian journal of medicine & science in sportsauthors
Edwards S,Steele JR,McGhee DEdoi
10.1111/j.1600-0838.2009.00964.xsubject
Has Abstractpub_date
2010-06-01 00:00:00pages
516-23issue
3eissn
0905-7188issn
1600-0838pii
SMS964journal_volume
20pub_type
杂志文章abstract：:The increase in oxygen transport elicited by several weeks of exposure to moderate to high altitude is used to increase physical performance when returning to sea level. However, many studies have shown that aerobic performance may not increase at sea level after a training block at high altitude. Subsequently, the co...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,评审
doi：10.1111/j.1600-0838.2008.00830.x
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
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更新日期：2019-08-01 00:00:00
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pub_type： 杂志文章
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：2006-06-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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