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The Relationship of Stability and Adaptability Indicators of Postural Control with Functional Movement Outcomes when Performing Sport-Like Tasks.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The Relationship of Stability and Adaptability Indicators of Postural Control with Functional Movement Outcomes when Performing Sport-Like Tasks./
作者:	Johnson, Rachel S.
面頁冊數:	1 online resource (190 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-01, Section: B.
Contained By:	Dissertations Abstracts International84-01B.
標題:	Biomechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29062779click for full text (PQDT)
ISBN:	9798834005506

The Relationship of Stability and Adaptability Indicators of Postural Control with Functional Movement Outcomes when Performing Sport-Like Tasks.
Johnson, Rachel S.

The Relationship of Stability and Adaptability Indicators of Postural Control with Functional Movement Outcomes when Performing Sport-Like Tasks. - 1 online resource (190 pages)

Source: Dissertations Abstracts International, Volume: 84-01, Section: B.

Thesis (Ph.D.)--University of Georgia, 2022.

Includes bibliographical references

Context: Individuals with a history of concussion are at an increased risk of sustaining a lower extremity musculoskeletal injury, however, the reasons for this are unclear. Subclinical adaptations to motor programs and changes in neurocognitive function that present in more complex, sport environments may play a role. Assessments like nonlinear analyses of postural control and dual-task paradigms have been used to explore this. Objective: Determine if nonlinear measures of postural control predict functional movement outcomes (reaction time [RT]; dynamic postural stability index [DPSI]) in young adults. Determine how an alternating dual-task (ADT) paradigm influences nonlinear analyses of postural control, functional movement RT, and DPSI in healthy young adults. Explore group differences between young adults with a history of concussion or lower extremity injury and those without a history of any injury on nonlinear analyses of postural control outcomes, RT, and DPSI. Methods: Forty-eight young adults (62.5% female) completed bipedal and unipedal support postural control tasks, jump landing, single-leg landing, and anticipated cutting movements under single-task (ST), continuous dual-task (CDT), and ADT conditions. A series of linear regression models were used to determine if detrended fluctuation analyses (DFA) and multiscale entropy (MSE) predicted RT and DPSI under all cognitive conditions. Twelve repeated measures ANOVAs were used to determine if ST, CDT, and ADT paradigms impacted DFA, MSE, RT, and DPSI outcomes. Twelve 3 (group) x 3 (cognitive) mixed model ANOVAs were used to determine if group differences existed for DFA, MSE, RT, and DPSI outcomes. Results: Nonlinear analyses predicted RT outcomes (p≤0.042, R2≥0.202) but not DPSI outcomes (p≥0.167, R2≤0.137). A concurrent cognitive task slowed RT (p≤0.003). DPSI improved during CDT compared to ST trials (p=0.013). A concurrent cognitive task increased complexity outcomes for nonlinear bipedal postural control trials (p≤0.003) but not unipedal trials (p≥0.058). ML MSE was less complex in participants with concussion history than those with a lower extremity injury history (p=0.004). Conclusions: Nonlinear postural control analyses predict functional movement RT. A concurrent cognitive task slows RT and increases complexity in nonlinear outcomes. ML MSE was less complex in those with a concussion history.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798834005506Subjects--Topical Terms:

548685
Biomechanics.
Subjects--Index Terms:

ConcussionIndex Terms--Genre/Form:

542853
Electronic books.

The Relationship of Stability and Adaptability Indicators of Postural Control with Functional Movement Outcomes when Performing Sport-Like Tasks.
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