Functional Electrical Stimulation- hemiplegic shoulder
Introduction
Functional electrical stimulation (FES), also called functional neuromuscular stimulation (FNS), is a technique used to replace or assist a voluntary muscle contraction during a functional task by applying low-level electrical current to the nerves that control muscles or directly over the motor end-plate of the muscle (just like a pacemaker makes a heart beat).
The term "FES" is commonly used to describe electrical stimulation used as a treatment modality for loss of shoulder function, pain, spasticity and subluxation following stroke. The U.S. AHCPR Post Stroke Rehabilitation Guidelines defines FES as "bursts of electrical stimulation applied to the nerves or muscles affected by the stroke, with the goal of strengthening muscle contraction and improving motor control."
Neuromuscular electrical stimulation, or simply "electrical stimulation" (ES), is a modality used for strengthening muscles. ES may be considered a FES when a muscle contraction is facilitated during a functional task. Despite the use of all three terms in the literature (FES, FNS and ES) the applications to the hemiplegic shoulder all focus on the stimulation of the supraspinatus and deltoid muscles. Therefore, this module includes the modalities that elicit muscular contraction of the rotator cuff muscles. TENS and other therapeutic electrical stimulation that do not elicit muscular contraction are reviewed in other modules.
Theoretically, FES should help to compensate or facilitate flaccid shoulder muscles, which in turn should reduce the risk of shoulder subluxation, by involuntary muscle contractions. The effectiveness of FES in improving function, tone, EMG activity and in reducing pain and subluxation has been reported.
Authors*: Marc-André Roy, MSc; Nicol Korner-Bitensky, PhD; Robert Teasell, MD; Norine Foley, BASc; Sanjit Bhogal, MSc; Jamie Bitensky, MScOT; and Mark Speechley, MD.
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/