Trial Outcomes & Findings for Discrete Versus Rhythmic Gait Training (NCT NCT02650440)

NCT ID: NCT02650440

Last Updated: 2017-09-18

Results Overview

The Functional Ambulation Scale (FAC) assesses an individual's independence during gait and follows a six-level scale: 0 - Patient can not walk or ask for help from two or more people; 1 - Patient requires continuous support from a person who assists with weight and balance; 2 - Patient needs continuous or intermittent support from a person to help with balance and coordination; 3 - Patient required for a person without physical contact; 4 - Patient can walk independently on the floor, but requires help on stairs and ramps; 5 - Patient can walk independently. This study compared the gait independence by the FAC between the two Arms, after intervention as compared to baseline.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

20 participants

Primary outcome timeframe

Baseline and 6 weeks

Results posted on

2017-09-18

Participant Flow

Participant milestones

Participant milestones
Measure
Novel Protocol
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Overall Study
STARTED
10
10
Overall Study
COMPLETED
10
8
Overall Study
NOT COMPLETED
0
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Novel Protocol
n=10 Participants
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
n=10 Participants
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Total
n=20 Participants
Total of all reporting groups
Age, Categorical
Between 18 and 65 years
9 Participants
n=10 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
5 Participants
n=8 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
14 Participants
n=18 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
Age, Categorical
<=18 years
0 Participants
n=10 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
0 Participants
n=8 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
0 Participants
n=18 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
Age, Categorical
>=65 years
1 Participants
n=10 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
3 Participants
n=8 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
4 Participants
n=18 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
Age, Continuous
50.6 years
STANDARD_DEVIATION 14.4 • n=10 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
59.3 years
STANDARD_DEVIATION 13.8 • n=8 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
50.6 years
STANDARD_DEVIATION 14.3 • n=18 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
Sex: Female, Male
Female
6 Participants
n=10 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
4 Participants
n=8 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
10 Participants
n=18 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
Sex: Female, Male
Male
4 Participants
n=10 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
4 Participants
n=8 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
8 Participants
n=18 Participants • Two individuals from Standard Protocol did not receive allocated intervention due to clinical complications.
Region of Enrollment
Brazil
10 participants
n=10 Participants
8 participants
n=10 Participants
18 participants
n=20 Participants

PRIMARY outcome

Timeframe: Baseline and 6 weeks

The Functional Ambulation Scale (FAC) assesses an individual's independence during gait and follows a six-level scale: 0 - Patient can not walk or ask for help from two or more people; 1 - Patient requires continuous support from a person who assists with weight and balance; 2 - Patient needs continuous or intermittent support from a person to help with balance and coordination; 3 - Patient required for a person without physical contact; 4 - Patient can walk independently on the floor, but requires help on stairs and ramps; 5 - Patient can walk independently. This study compared the gait independence by the FAC between the two Arms, after intervention as compared to baseline.

Outcome measures

Outcome measures
Measure
Novel Protocol
n=10 Participants
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
n=8 Participants
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Functional Ambulation Scale (FAC)
1 units on a scale
Interval 1.0 to 2.0
0 units on a scale
Interval 0.0 to 1.5

SECONDARY outcome

Timeframe: Baseline and 6 weeks

Change in distance of the gait applied test after intervention as compared to baseline

Outcome measures

Outcome measures
Measure
Novel Protocol
n=10 Participants
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
n=8 Participants
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Six-minute Walking Test (6MWT)
25.4 meters
Standard Error 10.4
7.6 meters
Standard Error 14.1

SECONDARY outcome

Timeframe: Baseline and 6 weeks

This test assesses the level of mobility of the individual to measure the time spent to get up from a chair, walk a distance of 3 meters, turn around and return. This study compared the change in the time of the gait applied test after intervention as compared to baseline.

Outcome measures

Outcome measures
Measure
Novel Protocol
n=10 Participants
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
n=8 Participants
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Time Up and Go (TUG)
-42.1 seconds
Standard Error 16.4
-11.3 seconds
Standard Error 22.9

SECONDARY outcome

Timeframe: Baseline and 6 weeks

Change in the time of the gait applied test after intervention as compared to baseline

Outcome measures

Outcome measures
Measure
Novel Protocol
n=10 Participants
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
n=8 Participants
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Ten-meters Walking Test (10MWT)
-52.8 seconds
Standard Error 27.9
-20.3 seconds
Standard Error 30.5

SECONDARY outcome

Timeframe: Baseline and 6 weeks

The Fugl Meyer Scale is a cumulative numerical scoring system that is assessed by an individual: range of motion, pain, tenderness, upper and lower extremity motor function and balance, plus coordination and speed of movement, with total 226 points. A three-point ordinal scale is applied to each item: 0 - can not be performed, 1-performed partially and 2-performed completely. For this study it was only an evaluation of motor function of the extremity of lower limbs with a total score of 0 to 34 points. The lower score indicates greater motor impairment. This study compared the change in motor function of lower limbs applied scale after intervention as compared to baseline

Outcome measures

Outcome measures
Measure
Novel Protocol
n=10 Participants
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
n=8 Participants
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Lower Limbs Fugl-Meyer
2.3 units on a scale
Standard Error 0.8
-1.1 units on a scale
Standard Error 2.1

SECONDARY outcome

Timeframe: Baseline and 6 weeks

Berg Scale is a functional scale of equilibrium performance, based on 14 common everyday items that evaluate the static and dynamic balance. The maximum scale score is 56 and each scale item has five alternatives ranging from 0 to 4 points. A score below 45 is considered a fall risk. This study comparede the change in the balance control applied scale after intervention as compared to baseline.

Outcome measures

Outcome measures
Measure
Novel Protocol
n=10 Participants
Progressive decrease of speed and guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.0 km/h. Novel Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
Standard Protocol
n=8 Participants
Progressive increase of speed and decrease of guidance force on robotic gait training. Initial speed is 1.4 km/h and final speed is 1.9 km/h. Standard Protocol: All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup). Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week. Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h. The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week. The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
Berg Scale
11.1 units on a scale
Standard Error 1.6
6.0 units on a scale
Standard Error 1.9

Adverse Events

Novel Protocol

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Standard Protocol

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Thais A. Rodrigues, MS, PT.

Coordination of Improvement of Higher Level Personnel - CAPES

Phone: 55 (61) 2022-6002

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place