Ipsilateral Transfer of Motor Skill From Lower to Upper Limb in Healthy Adults

NCT ID: NCT05988775

Last Updated: 2023-08-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-05-08

Study Completion Date

2023-03-12

Brief Summary

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To determine whether there is an ipsilateral transfer of motor skill from the lower to the upper limb in healthy adults.

Detailed Description

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In a single-blind randomized controlled study,45 healthy subjects were randomly allocated to one of three single intervention groups: (1) "Leg Training" group (LT) (15 participants) practiced reaching movement (RM) sequences with the non-dominant left lower limb towards the numbered illuminating switch; (2) "Sequence observation" group (SO) (15 participants) observed the identical sequences of the illuminating switches (Switches Observation (SO) group); and (3) "Nature Movie Watching" (MW) group. (15 participants) watched a neutral nature video. Each subject was asked to attend two consecutive sessions, day after day. The first session included familiarization practice of the motor task, a pretest, a single session intervention (according to group randomization), and a posttest. Subjects participated in two sessions. The second session included a retest, 24 hours after the training. The predefined sequence consisted of six reaching movements in the following order of switches: 1, 4, 3, 5, 4, 2.

Recording apparatus used in tests (pretest, posttest, and retest) and training: A custom-made testing device was set up on a rectangular table with a smooth laminated tabletop of 105 cm × 80 cm and adjustable height. Five switch-led units of 5 cm × 8 cm × 5 cm, each composed of a large push-button switch and a red light-emitting diode (LED), attached to the tabletop in a 38-cm radius half circle, successively numbered from 1 to 5. The system was operated by a desktop computer, interfaced with a data acquisition card of LABVIEW software. The algorithm allowed parameters selection of LED activation (illumination) sequence, duration of RM, the delay between RMs, and the number of RM repetitions. Activation of a specific unit LED was a cue for the subject to reach toward that unit and press the push-button switch. Reaching the switch of an activated unit deactivated it, and the response time, between the activated and deactivated LED, was recorded.

Tests (motor tasks): The non-dominant left arm was tested. Motor task: The subjects performed a sequential movement task on a table with push button switches with lights sequentially turning on to indicate the order. Each switch lit up for 1 second, or until hit. Initially, the participants were required to perform 3 sequences to familiarize themselves with the setup, the task, and the sequence. Then, they performed the pre-test which consisted of two blocks of 5 sequences, i.e. 10 sequences, with a 30s break between blocks. After this, the participants underwent one of the following predetermined interventions groups:

1. "Leg Training" Participants sat on a chair with their left heel resting on the table with the push button switches. They performed 10 blocks of the aforementioned sequence with their leg, with a 30s break between each block.
2. "Sequence observation" Participants observed 10 blocks of the identical sequence with the lights alternating automatically, with a 30s break between each block.
3. "Nature movie watching" Participants watched a "scenic relaxation film" for 10 minutes, with a 30s break after every minute.

Two outcome measures were used: 1. response time (s), 2. failure (%) of the reaching movements, defined as failure to reach the switch in the allotted time (1 sec), or pressing the wrong buzzer.

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

randomized controlled trial (RCT)
Primary Study Purpose

OTHER

Blinding Strategy

SINGLE

Participants

Study Groups

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Leg training

Participants sat on a chair with their left heel resting on the table with the push button switches. participants performed 10 blocks of the aforementioned sequence with their leg, with a 30s break between each block.

Group Type EXPERIMENTAL

Leg training

Intervention Type BEHAVIORAL

Participants sat on a chair with their left heel resting on the table with the push button switches. participants performed 10 blocks of the aforementioned sequence with their leg, with a 30s break between each block.

Sequence observation

Participants observed 10 blocks of the sequence with the lights alternating automatically, with a 30s break between each block.

Group Type ACTIVE_COMPARATOR

Sequence observation

Intervention Type BEHAVIORAL

Participants observed 10 blocks of the sequence with the lights alternating automatically, with a 30s break between each block.

Nature movie watching

Participants watched a "scenic relaxation film," for 10 minutes, with a 30s break after every minute.

Group Type OTHER

Nature movie watching

Intervention Type OTHER

Participants observed 10 blocks of the sequence with the lights alternating automatically, with a 30s break between each block.

Interventions

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Leg training

Participants sat on a chair with their left heel resting on the table with the push button switches. participants performed 10 blocks of the aforementioned sequence with their leg, with a 30s break between each block.

Intervention Type BEHAVIORAL

Sequence observation

Participants observed 10 blocks of the sequence with the lights alternating automatically, with a 30s break between each block.

Intervention Type BEHAVIORAL

Nature movie watching

Participants observed 10 blocks of the sequence with the lights alternating automatically, with a 30s break between each block.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* aged between 20 and 35
* right-hand dominant
* healthy according to self-report

Exclusion Criteria

* musculoskeletal problems or any other problem that may interfere with the performance of the task (extension of an arm or leg while sitting).
* pregnancy
Minimum Eligible Age

20 Years

Maximum Eligible Age

35 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Ariel University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Silvi Frenkel-Toledo, PhD

Role: PRINCIPAL_INVESTIGATOR

Study Principal Investigator

Locations

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Ariel University

Ariel, , Israel

Site Status

Countries

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Israel

Other Identifiers

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AU-HEA-OE-20210610

Identifier Type: -

Identifier Source: org_study_id

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