The purpose of this study is to evaluate the neuromuscular responses, pain intensity and rate of perceived exertion in patients with severe knee osteoarthritis in a preoperative setting with low-load resistance training with blood flow restriction at different levels of arterial occlusion pressure.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
22
4 sets (30, 15, 15, 15 reps).
Clinic Universitary Hospital of Valencia
Valencia, Spain
Self-reported pain intensity (Visual Analogue Scale (VAS) Scale 0-10)
Change from baseline to the end of the session, and the change between the treatment group and the placebo group.
Time frame: Pre exercise, immediate post set, immediate post session, and 10 minutes after session.
Pressure pain thresholds
Change from baseline to the end of the session, and the change between the treatment group and the placebo group.
Time frame: Pre exercise, immediate post session, and 10 minutes after session.
HDsEMG
Change between baseline and exercise, and the change between the treatment group and the placebo group.
Time frame: During each experimental session and during each exercise condition.
Tampa Scale of Kinesiophobia (TSK 11)
Its score range is 11-44, with higher scores reflecting worse condition.
Time frame: Pre session.
Pain Catastrophizing Scale (PCS)
People are asked to indicate the degree to which they have certain thoughts and feelings when they are experiencing pain using the 0 (not at all) to 4 (all the time) scale. A total score is yielded (ranging from 0-52), along with three subscale scores assessing rumination, magnification and helplessness, with higher scores reflecting worse condition.
Time frame: Pre session.
Chronic Pain Self-Efficacy Scale (CPSS)
The Chronic Pain Self-Efficacy Scale (CPSS) is designed to measure chronic pain patients' perceived self-efficacy to cope with the consequences of chronic pain. The CPSS measures three domains of pain self-efficacy: pain management, physical functioning, and coping with symptoms. A total score is yielded (ranging from 220-2200), with higher scores reflecting a better condition.
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Time frame: Pre session.
WOMAC questionaire for patients with hip or knee osteoarthritis.
The WOMAC is a disease-specific self-administered questionnaire for patients with hip or knee osteoarthritis. It has a multidimensional scale made up of 24 items grouped into three dimensions: pain (5 items), stiffness (2 items) and physical function (17 items). For each item, it uses a Likert scale with five response levels, representing different degrees of intensity (none, mild, moderate, severe or extreme) that are scored from 0 to 4. The final score for the WOMAC is determined by adding the aggregate scores for pain, stiffness and function. The higher the score, the worse the patient's condition.
Time frame: Pre session.
Heart Rate
Change from baseline to the end of the session, and the change between the treatment group and the placebo group.
Time frame: Pre exercise, immediate post set, immediate post session, and 10 minutes after session.
Rating of perceived exertion (RPE) based on Borg's CR10 scale
The Borg CR10 scale is a tool for measuring an individual's effort and exertion during physical work. It is a very simple numerical list from 0 (no exertion at all) to 10 (maximal intensity of activity). Participants are asked to rate their exertion on the scale during the activity, combining all sensations and feelings of physical stress and fatigue. They are told to disregard any one factor such as leg pain or shortness of breath but to try to focus on the whole feeling of exertion.
Time frame: Immediate post exercise.