Effect of Adding Blood Flow Restriction to Strengthening Exercise in Patients With Patellofemoral Pain Syndrome

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-35
SponsorCairo University

About this trial

To study the effect of adding BFRT to strengthening exercises and compare it with strengthening exercises alone in improving, muscular strength, pain, function, joint position sense, and dynamic balance test (star excursion test). in patients with PFPS.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patient referred from Orthopedic surgeon with diagnosis of patellofemoral pain syndrome PFPS.

Both genders.

BMI ranges from 18.5 to 29.9.

Age ranges between 18 and 40 years experienced non-traumatic PFPS onset of anterior knee pain for greater than 2 weeks.

Disqualifiers

Coexisting pathology around the knee, including patellar subluxation or dislocation.

Other sources of anterior knee pain (bursa, fat pad).

Previous knee surgery.

Suspicion of patellar tendinopathy, with strong consideration of pain localised to the patellar tendon.

Trial design

Design model

Parallel

Treatments tested in this trial

  • BFR

    Other intervention

    Blood flow restriction training is an accessory to a variety of different exercise modes (e.g., resistance exercise, walking, cycling) has recently become a popular research topic. It involves the application of pressurized cuffs to the proximal portion of each lower extremity or upper extremity. It enhance blood pooling in the capillary beds of the limb muscles distal to the tourniquet or cuff. The 3rd Generation SmartCuffs® pump (SmartCuffs® 3.0 PRO) is Personalized Pressure feature which allows for a fast, hassle-free personalized pressure calculation. With the built-in pressure sensor and on-board computer, it is calculate arterial occlusion pressure and set the optimal pressure for patient's body. There is no need for an external doppler probe or hand pump. This unit will do everything for patient. Smart Cuffs 3rd generation is FDA Approved Listed Class 1 device. The automatized tourniquet (Smart Tools) contains a ring-shaped single- chamber

  • strengthening exercise

    Other intervention

    Quadriceps strengthening exercises are part of the treatment of PFPS, but the heavy resistance exercises may aggravate knee pain. Blood flow restriction training (BFRT) provides a low-load quadriceps strengthening method to treat PFPS (Giles et al., 2017).

Treatment groups

50 Participants
are divided into 2 treatment groups
Group A: strengthening exercises group (SE Group)Active comparator 1 intervention
Group B: BFRT plus strengthening exercises group (BFRT Group)Experimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

quadriceps and hip abductors strength

Hand-Held Dynamometer (HHD). The Lafayette® HHD is a valid and reliable instrument of low cost and easy handling compared to the isokinetic dynamometer for assessment of muscle strength

Time frame
6 weeks

Secondary outcomes

1

pain severity using Visual Analog Scale (VAS)

The Visual Analog Scale is determined by measuring in millimeters from the left end of the line to the patient's mark. Participants will ask to determine the point at which pain represents the severity of pain maximum is 10 while lowest level of pain is zero

Time frame
6 weeks
2

functional status (Kujala Patellofemoral Score)

The 13 items on the scale are used to assess subjective symptoms and functional restrictions. A score can have a minimum of 0 points or a maximum of 100 points.

Time frame
6 weeks
3

joint position sense (measured by digital inclinometer)

Digital Inclinometer for joint position sense assessment. Device (Digital Protractor, 82201b-00, INSPEC, China) The inclinometer is a valid and reliable method to assess the knee proprioception through JPS in open kinetic chain

Time frame
6 weeks
4

dynamic balance (Star Excursion Balance Test

Four strips of adhesive tape will need to be cut to a length of 6-8 feet each. Two pieces will be used to form a '+', with the other two being placed over top to form an 'x' so that a star shape is formed. It is important that all lines are separated from each other by a 45° angle. The goal of the Star Excursion Balance Test (SEBT) is to maintain single leg stance on one leg while reaching as far as possible with the contralateral leg.

Time frame
6 weeks

Other outcomes

Sponsors and contacts

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