The main objective of the study is to assess the feasibility of a randomized clinical trial that investigates the effects of an 8-week group exercise program on pain, disability, fear of falling, overall impression of recovery, frequency of falls and level of physical activity in elderly people with nonspecific low back pain.
The main objective of the study is to assess the feasibility of a randomized clinical trial that investigates the effects of an 8-week group exercise program on pain, disability, fear of falling, overall impression of recovery, frequency of falls and level of physical activity in elderly people with nonspecific low back pain. The evaluation of feasibility will be related to: (1) blinding the evaluator to allocate the groups; (2) eligibility and recruitment rates; (3) acceptability of random allocation to a group; (4) possible contamination between groups; (5) adherence to treatment; (6) satisfaction with the treatment; and (7) difficulty in understanding the information provided by the physiotherapist.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
60
Each group session will consist of 10 to 18 participants and each exercise session will last 60 minutes and consist of four stages: (1) five minutes warm up (i.e. self-regulated walk); (2) twenty minutes of moderate intensity walking (3) thirty minutes of resistance training for the major muscles of the leg, trunk and arm and balance exercises that progress in difficulty; (4) five-minute cool down period (i.e. self-regulated walk). The exercise intensity will be assessed by one of the following criteria: 1) Resistance training - Point of volitional fatigue. Walking - Somewhat difficult (Borg at 3 to 4). The intensity will be increased according to the ACSM guideline. The exercise was set up based on changes in instruments of evaluation of the older peoples as, Berg Balance Scale; Dynamic Gait Index and Timed Up and Go. In addition, exercises commonly used in primary health care groups. The protocol will take place in a gymnasium and will be supervised by a trained instructor.
Feasibility of blinding the assessor
Feasibility of blinding will be assessed by asking the assessor two questions at the end of the follow-up assessment: 1. Did you receive any information that indicated to you which group the participant was assigned to? 2. How did you receive information about group assignment? Assessor's guess regarding group assignment group will be recorded for each participant. The responses will be coded as correct or incorrect guess. The frequency and relative rates of 'Yes' and 'No' as the answer to the first question will be computed, as will the frequency and relative rates of correct and incorrect guesses. Finally, reasons for guesses will be recorded as verbatim and reported.
Time frame: 8 weeks from randomization
Eligibility and recruitment rates
Eligibility and recruitment rates
Time frame: 8 weeks from randomization
Acceptability of random allocation to a treatment group
Outcome assessor will ask the participants if random allocation to one of the two treatment groups is acceptable to the participants. Responses will be recorded as 'Acceptable', 'Not acceptable' or 'No preference'. The frequencies of each response will be computed separately for each treatment condition.
Time frame: 8 weeks from randomization
Understanding possible contamination between the groups
Measures to assess: Have you talked to other participants in this study about the intervention they are receiving? Has your attitude towards the intervention changed after talking to the participant (s) in the other group? Are any of the participants in the other group aware of the type of intervention you are receiving in this study? The frequencies of the participants who responded affirmatively to each question will be computed separately for each treatment condition.
Time frame: 8 weeks from randomization
Adherence to treatment
Adherence to treatment measured by frequency during the intervention
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Time frame: 8 weeks from randomization
Satisfaction with the treatment
All the participants of the intervention group will be asked to respond an adapted version of the MedRisk Instrument for Measuring Patient Satisfaction With Physical Therapy Care at 1 week following treatment. The question asked will be: 1. Did my physiotherapist carefully explain the treatments I received? 2. Did my physiotherapist treat me respectfully? 3. Did my physiotherapist answer all my questions? n general, am I completely satisfied with the services I received from my physical therapist? Responses to this question are made on a five-point categorical scale 1='completely disagree'; 2='Disagree'; 3= 'Neutral'; 4=' Agree'; 5=' Completely agree'). The frequency of response for each question will be analyzed
Time frame: 8 weeks from randomization
Difficulty in understanding the information provided by the physiotherapist
Difficulty in understanding the information provided by the physiotherapist measured on a five-point categorical scale: Very easy, Easy, Neither easy nor difficult, Difficult, Very difficult
Time frame: 8 weeks from randomization
Pain intensity
Pain intensity measured with a Numerical Rating Scale from 0 to 10, , where 0 does not cause pain and 10 is the worst pain imaginable.
Time frame: 8 weeks from randomization
Disability
Disability measured with the Roland-Morris Disability Questionnaire. The questionnaire has 24 items with scores of 0 or 1 (yes or no) and the total ranges from zero (suggesting no disability) to 24 (severe disability).
Time frame: 8 weeks from randomization
Fear of falling
Fear of falling measured with the Falls Efficacy Scale- International. The Falls Efficacy Scale - International presents questions about the concern with the possibility of falling when performing 16 activities, with respective scores from one to four. The total score can range from 16 (no concern) to 64 (extreme concern).
Time frame: 8 weeks from randomization
Level of physical activity
Level of physical activity measured with the Physical Activity Rating scale. It is a progressive scale with scores from 0 to 7, in which the most appropriate option for the history of physical activity practice in the last 30 days should be selected.
Time frame: 8 weeks from randomization
Global perception of recovery
Global perception of recovery measured with Global Effect Perception Scale. This is a numerical scale where -3 represents "worse than ever", 0 "without modification" and 3 "completely recovered". A higher score means greater recovery from the condition.
Time frame: 8 weeks from randomization
Frequency of falls
Frequency of falls assessed by the number of falls during the study period
Time frame: 8 weeks from randomization