Short-term Postural Training for Older Adults

NCT ID: NCT04137952

Last Updated: 2024-09-19

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 150 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2019-08-01
• Study Completion Date: 2022-12-30

Brief Summary

Generalization refers to skill transfer under various working spaces following motor practice. The extent of generalization effect links causal to in-depth recognition of error properties during motor practice. Idiom says "imperfect practice makes perfect". It could be beneficial for the elderly to gain superior capacity of balance transfer skill under the short-term productive failure learning environments. In contrast to traditional visual feedback that uses error avoidance training to optimize target balance task, the present 3-year proposal is to propose three potential neuro-cognitive strategies to improve motor skill transfer following stabilometer training. The strategies are expected to enhance opportunities of error experience and motor exploration via modified visual feedback, underlying facilitations of attentional resource and error-related neural networks. In the first year, the neuro-cognitive strategy for balance practice is progressive augmentation of visual error size to improve balance skill transfer. In the second year, the neuro-cognitive strategy for balance practice is visual feedback with virtual uncertainness of motor goal. In the third year, the neuro-cognitive strategy for balance practice is stroboscopic vision. EEG and central of pressure will be processed with non-linear approaches. Graph theory will characterize EEG functional connectivity and brain network efficiency regarding to brain mechanisms for practice-related leaning transfer. Trajectories of central of pressure will be analyzed with stabilogram diffusion analysis to reveal behavior mechanisms for practice-related variations in feedback and feedforward process for error corrections.

Conditions

Aging; Balance

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: NONE

Study Groups

deterministic visual error gain

Day1(Pretest):

1. stabilometer stance, 3 times/1 min

2. air pillow stance, 3 time/30 sec

3. poture-supraposture dual task, 3 times/1 min

Day2 to Day5:

1. Exp.group:27 times of posture tracking with high visual error gain.

2. Control group:27 times of posture training with normal visual error gain.

Day6 (Posttest):

1. stabilometer stance, 3 times/1 min

2. air pillow stance, 3 time/30 sec

3. poture-supraposture dual task, 3 times/1 min

Group Type: EXPERIMENTAL

size of error visual feedback

Intervention Type: BEHAVIORAL

The strategies are expected to enhance opportunities of error experience and motor exploration via modified visual feedback, underlying facilitations of attentional resource and error-related neural networks.

stochastic visual noise

Day1(Pretest):

1. stabilometer stance, 3 times/1 min

2. air pillow stance, 3 time/30 sec

3. poture-supraposture dual task, 3 times/1 min

Day2 to Day5:

1. Exp.group A:27 times of posture training with posture tracking signal-to-noise ratio=2:1.

2. Exp.group B:27 times of posture training with posture tracking signal-to-noise ratio=4:1.

3. Control group:27 times of posture training with normal visual error gain.

Day6(Posttest):

1. stabilometer stance, 3 times/1 min

2. air pillow stance, 3 time/30 sec

3. poture-supraposture dual task, 3 times/1 min

Group Type: EXPERIMENTAL

size of error visual feedback

Intervention Type: BEHAVIORAL

The strategies are expected to enhance opportunities of error experience and motor exploration via modified visual feedback, underlying facilitations of attentional resource and error-related neural networks.

intermittent visual gain

Day1 (Pretest):

1. stabilometer stance with wearing flash glasses (low frequency with opaque ratio 50%), 4 times/45 sec

2. stabilometer stance with wearing flash glasses (high frequency with opaque ratio 50%), 4 times/45 sec.

3. stabilometer stance with wearing flash glasses (clear), 4 times/45 sec

4. air pillow stance, 8 times/1 min

Day2 (training section):

1. Exp. group:Posture tracking with wearing flash glasses (low frequency with opaque ratio 50%), 12 times/45 sec.

2. Control group:Posture tracking with wearing flash glasses (clear), 12 times/45 sec.

Day3 (Posttest):

1. stabilometer stance with wearing flash glasses (low frequency with opaque ratio 50%), 4 times/45 sec

2. stabilometer stance with wearing flash glasses (high frequency with opaque ratio 50%), 4 times/45 sec

3. stabilometer stance with wearing flash glasses (clear), 4 times/45 sec

4. air pillow stance, 8 times/1 min

Group Type: EXPERIMENTAL

size of error visual feedback

Intervention Type: BEHAVIORAL

The strategies are expected to enhance opportunities of error experience and motor exploration via modified visual feedback, underlying facilitations of attentional resource and error-related neural networks.

Interventions

size of error visual feedback

The strategies are expected to enhance opportunities of error experience and motor exploration via modified visual feedback, underlying facilitations of attentional resource and error-related neural networks.

Intervention Type: BEHAVIORAL

Other Intervention Names

virtual uncertainness of motor goals; stroboscopic vision

Eligibility Criteria

Inclusion Criteria

• Age above 60 years old healthy older adults without a history of falls.
• Able to understand and give informed consent.
• The Mini-Mental State Examination test score above 25-30.
• Lower limb muscle strength is evaluated as G grade
• The corrected visual acuity was within the normal range.

Exclusion Criteria

• Any known history of mental illness
• Any neuromuscular or degenerative neurological disease(ex:stroke、SCI、TBI...etc)
• Any known history of cerebral cerebellar disease or intracranial metal implants.
• Weak of hearing or wearing a hearing aid

• Minimum Eligible Age: 60 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Ministry of Science and Technology, Taiwan

OTHER_GOV

Sponsor Role: collaborator

National Cheng-Kung University Hospital

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Hwang Ing-Shiou, Phd

Role: STUDY_CHAIR

NCKU, Institute of Allied Health Sciences

Locations

National Chen Kong University Hospital

Taian, Eastern District, Taiwan

Countries

Taiwan

Other Identifiers

MOST 108-2314-B-006-071 -

Identifier Type: -

Identifier Source: org_study_id