The purpose of this study is to evaluate the neuromuscular and perceptual responses, pain intensity and performance in patients with severe knee osteoarthritis in a preoperative setting with low-load resistance training with a self-regulated mathematical dual-task.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
25
Do the maximum number of repetitions of externally-resisted (50% 1RM) knee extensions.
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 dual-task and the regular condition.
Time frame: Pre exercise, 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 dual-task and the regular condition.
Time frame: Pre exercise, immediate post session, and 10 minutes after session.
HDsEMG
Change from baseline to the end of the session, and the change between the dual-task and the regular condition.
Time frame: During each experimental session and during each exercise condition.
Performance
Maximum number of exercise repetitions performed.
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)
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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.
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 dual-task and the regular condition.
Time frame: Pre exercise, immediate post session, and 10 minutes after session.
Perceived difficulty of the dual-task.
Based on an 11-point numerical rating scale.
Time frame: Immediate post exercise.