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Clinical Trials/NCT06963658
NCT06963658RecruitingNot Applicable

Acute Effect of Isometric Excercise on Pain Sensitivity in Adults With Chronic Low Back Pain

Taif University1 site in 1 country90 target enrollmentStarted: August 1, 2025Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Recruiting
Enrollment
90
Locations
1
Primary Endpoint
The primary outcome is pain sensitivity

Study Overview

Brief Summary

Randomized control trial to examine the immediate effect of isometric exercise on pressure pain threshold (PPT) in adults with chronic low back pain. The secondary aim of this study was to investigate the acute effects of isometric exercise on clinical pain intensity.

Detailed Description

Participants will attend a single visit to the hospital for two hours, which will include collecting demographic details and clinical characteristics through self-reported assessment scales. After that, outcome measures (pain sensitivity and current low back pain intensity) were collected prior to the intervention and repeated immediately post-intervention.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Double (Investigator, Outcomes Assessor)

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •participants aged ≥18 years or older
  • •participant diagnosed with non-specific chronic lower back pain (> 12 weeks)
  • •Able to perform physical therapy excercise .

Exclusion Criteria

  • •The study will exclude
  • •1- pregnant women 2- lactating women for one or less than one year post-natal. 3- any certain medical conditions that could interfere with physical activity, including:
  • •uncontrolled diabetes
  • •cardiovascular problem
  • •orthopedic impairments
  • •balance problems. 4-serious spinal pathologies :
  • •infection
  • •fractures
  • •inflammatory diseases like ankylosing spondylitis 5- neurological compromise,
  • •spinal nerve compromise
  • •cauda equina syndrome

Arms & Interventions

Multiple repetition isometric wall squat

Experimental

Participants were directed to rest their backs against the wall with shoulder width apart and feet parallel, then descend until they achieve an angle of 100 degrees at knee joint. The knee joint angle was assessed using a goniometer placed on the lateral epicondyle of the knee, aligned with the femur, while the anchor arm was aligned with the lateral malleolus. They were instructed to maintain the isometric hold for up to three minutes, or until volitional fatigue was reached.with a 30-second rest period between each squat hold.

Intervention: Multiple repetition isometric wall squat (Other)

Multiple Isometric wall squat exercise + Double Leg Lower with Isometric Hold

Experimental

Participants were directed to rest their backs against the wall with shoulder width apart and feet parallel, then descend until they achieve an angle of 100 degrees at knee joint. The knee joint angle was assessed using a goniometer placed on the lateral epicondyle of the knee, aligned with the femur, while the anchor arm was aligned with the lateral malleolus. They were instructed to maintain the isometric hold for up to three minutes, or until volitional fatigue was reached.with a 30-second rest period between each squat hold.

Immediately post 60 second rest, Determine the participant's maximum angle using the double leg lowering test from supine position let the participant with both legs straightened before lifting the posterior hip, lowering the legs to a specific angle. Turn on the stopwatch. Hold the position near--maximally, try to achieve on (IES=9/10) and hold for the longest duration. They should reach 4 minutes for 3 repetition with 30 seconds rest between repetition

Intervention: Multiple Isometric wall squat exercise + Double Leg Lower with Isometric Hold (Other)

Control quiet seated rest

Experimental

The CON group served as the control group and did not perform any exercise. Participants were instructed to sit quietly in a standard height stationary clinical room patient chair for the entire eight minutes.

Intervention: Control quiet seated rest (Other)

Outcomes

Primary Outcomes

The primary outcome is pain sensitivity

Time Frame: pre- and immediately post-intervention

Pain sensitivity was assessed via pressure pain threshold (PPT) using a standard procedure. The PPT was assessed by a digital pressure algometer (Wagner digital force Ten FDX 25 with 1 cm 2 rubber tip).This instrument has been widely utilized in various studies and has been shown to be valid and reliable in assessing PPT among people with musculoskeletal pain. If post intervention PPT was higher than pre-intervention value, this indicated that pain sensitivity decreased, suggesting exercise induced hypoalgesia occurred. If post-intervention PPT was lower than pre-intervention PPT, this indicates that pain sensitivity increased, suggesting that exercise induced hyperalgesia occurred.

Secondary Outcomes

  • The secondary outcome is the pain intensity in the lower back(pre- and immediately post-intervention)

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Hosam Alzahrani

Associate professor

Taif University

Study Sites (1)

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