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Effect of Practice Schedule on Motor Learning of Reactive Balance Responses in Persons With Parkinson's Disease and Age-Matched Controls
Effect of Practice Schedule on Motor Learning of Reactive Balance Responses in Persons With Parkinson's Disease and Age-Matched Controls
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103510
- ISBN
- 9798315744085
- DDC
- 615.82
- 서명/저자
- Effect of Practice Schedule on Motor Learning of Reactive Balance Responses in Persons With Parkinsons Disease and Age-Matched Controls
- 발행사항
- [Sl] : University of Maryland, Baltimore, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 128 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
- 주기사항
- Advisor: Westlake, Kelly P.
- 학위논문주기
- Thesis (Ph.D.)--University of Maryland, Baltimore, 2025.
- 초록/해제
- 요약Background: At least two out of three persons with Parkinson's disease (PD) experience falls each year. Many of these patients are recurrent fallers, primarily due to Parkinsonian symptoms that disrupt postural control and limit responses to balance challenges. Despite pharmacological and rehabilitation interventions, postural and balance deficits persist, and the risk of falling remains intractable. Among older adults, perturbation-based balance training (PBT)- where fall-inducing disturbances are applied unpredictably- has emerged as an effective method to reduce fall-related injuries. However, persons with PD exhibit set-shifting and postural inflexibility impairments that can hinder motor skill acquisition, retention, and generalization under unpredictable practice conditions. Consequently, motor learning strategies that are effective for those without PD may not yield the same results in this population. The overall objective of this dissertation was to investigate the effects of practice schedules on the motor learning of protective stepping stability in persons with PD and age-matched controls. We hypothesized that blocked practice would be more effective than random practice for acquiring and retaining protective stepping stability in response to unexpected balance perturbations. Furthermore, additional random practice will be necessary to generalize these protective skills to different contexts.Methods: We randomly assigned 20 persons with PD and 20 age-matched controls to a blocked and random practice group to receive a session of fall-inducing perturbations in blocked or random order while participants wore a safety harness. Additional random perturbations were administered to both groups 24 to 48 hours after the first practice session. We recorded their postural responses using motion capture systems that allowed us to quantify their postural responses in three dimensions and compared performance between practice groups at baseline, posttest, retention, and generalization tests.Result: Persons with PD retained protective stepping stability through blocked but not random practice after 24 to 48 hours of practice. With additional random practice, improvement persisted up to 48 hours to one week after practice.Conclusion: When designing PBT to improve reactive balance in people with PD, the choice motor learning impairments should be accounted for. Blocked practice may enhance the acquisition and retention of protective stepping through PBT in people with PD.
- 일반주제명
- Physical therapy
- 일반주제명
- Behavioral sciences
- 일반주제명
- Pharmacology
- 키워드
- Basal ganglia
- 키워드
- Motor learning
- 키워드
- Older adults
- 키워드
- Postural control
- 키워드
- Reactive balance
- 기타저자
- University of Maryland, Baltimore Physical Therapy
- 기본자료저록
- Dissertations Abstracts International. 86-11B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103510
■006m o d
■007cr#unu||||||||
■020 ▼a9798315744085
■035 ▼a(MiAaPQ)AAI32003258
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a615.82
■1001 ▼aAkinlosotu, Ruth Y.
■24510▼aEffect of Practice Schedule on Motor Learning of Reactive Balance Responses in Persons With Parkinson's Disease and Age-Matched Controls
■260 ▼a[Sl]▼bUniversity of Maryland, Baltimore▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a128 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-11, Section: B.
■500 ▼aAdvisor: Westlake, Kelly P.
■5021 ▼aThesis (Ph.D.)--University of Maryland, Baltimore, 2025.
■520 ▼aBackground: At least two out of three persons with Parkinson's disease (PD) experience falls each year. Many of these patients are recurrent fallers, primarily due to Parkinsonian symptoms that disrupt postural control and limit responses to balance challenges. Despite pharmacological and rehabilitation interventions, postural and balance deficits persist, and the risk of falling remains intractable. Among older adults, perturbation-based balance training (PBT)- where fall-inducing disturbances are applied unpredictably- has emerged as an effective method to reduce fall-related injuries. However, persons with PD exhibit set-shifting and postural inflexibility impairments that can hinder motor skill acquisition, retention, and generalization under unpredictable practice conditions. Consequently, motor learning strategies that are effective for those without PD may not yield the same results in this population. The overall objective of this dissertation was to investigate the effects of practice schedules on the motor learning of protective stepping stability in persons with PD and age-matched controls. We hypothesized that blocked practice would be more effective than random practice for acquiring and retaining protective stepping stability in response to unexpected balance perturbations. Furthermore, additional random practice will be necessary to generalize these protective skills to different contexts.Methods: We randomly assigned 20 persons with PD and 20 age-matched controls to a blocked and random practice group to receive a session of fall-inducing perturbations in blocked or random order while participants wore a safety harness. Additional random perturbations were administered to both groups 24 to 48 hours after the first practice session. We recorded their postural responses using motion capture systems that allowed us to quantify their postural responses in three dimensions and compared performance between practice groups at baseline, posttest, retention, and generalization tests.Result: Persons with PD retained protective stepping stability through blocked but not random practice after 24 to 48 hours of practice. With additional random practice, improvement persisted up to 48 hours to one week after practice.Conclusion: When designing PBT to improve reactive balance in people with PD, the choice motor learning impairments should be accounted for. Blocked practice may enhance the acquisition and retention of protective stepping through PBT in people with PD.
■590 ▼aSchool code: 0373.
■650 4▼aPhysical therapy
■650 4▼aBehavioral sciences
■650 4▼aPharmacology
■653 ▼aBasal ganglia
■653 ▼aMotor learning
■653 ▼aOlder adults
■653 ▼aParkinson's disease
■653 ▼aPostural control
■653 ▼aReactive balance
■690 ▼a0382
■690 ▼a0602
■690 ▼a0419
■71020▼aUniversity of Maryland, Baltimore▼bPhysical Therapy.
■7730 ▼tDissertations Abstracts International▼g86-11B.
■790 ▼a0373
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357427▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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