Isokinetic Strength Training On Functional Performance

Sponsor
Kafrelsheikh University
Study ID
NCT07035080
Status
Not Yet Recruiting

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Conditions

Eligibility Criteria

Sex
ALL
Age
8 Years - 12 Years
Healthy Volunteers
Not accepted

Interventions

  • interferential therapy — OTHER
    Thirty hemophilic males (type A and B) children with unilateral hemarthrosis, age ranged from 8 to 12 years participated in this study. They were selected from the outpatient clinic. Faculty of physical therapy, kafrelsheik university. The patients were divided randomly into two groups of equal number , control and study groups, 15 patients each . the control group (7 left and 8 right hemarthrosis) received traditional treatment program for one hour per session includeing (ultrasound stretching and strengthening exercise ) , while the study group (6 left and 9 right hemarthrosis) received interferential therapy in addition to the same treatment program given to the control groups.
  • tradional physical therapy — OTHER
    Thirty hemophilic males (type A and B) children with unilateral hemarthrosis, age ranged from 8 to 12 years participated in this study. They were selected from the outpatient clinic. Faculty of physical therapy, kafrelsheik university. The patients were divided randomly into two groups of equal number , control and study groups, 15 patients each . the control group (7 left and 8 right hemarthrosis) received traditional treatment program for one hour per session includeing (ultrasound stretching and strengthening exercise ) , while the study group (6 left and 9 right hemarthrosis) received interferential therapy in addition to the same treatment program given to the control groups.

Study Details

Hemophilia is a congenital , recessive clotting disease featured by cerebra ( The most dangerous ) and musculoskeletal (the most common and disabling) hemorrhages . It is a gender -specific coagulopathy resulting from a factor VIII (F VIII) deficiency in hemophilia A and factor IX (F IX) deficiency in hemophilia B( Felip et al., 2011) Loss of muscle mass is typical of hemophilia arthropathy, There are two basic reasons that account for such muscle loss. The first reason is due to inactive joints as the result of long -term immobilization that hemophilic patients are obliged to do because of continuous lesions in muscles and joints, and the second reason is a decrease in physical exercise by hemophilic patients because of the risk of lesions that they face (Toca-Herrera et al., 2008). Interferential therapy is a type of transcutaneous electrical nerve stimulation (TENS). Two slightly different, medium frequency- alternating currents are simultaneously applied to the affected area through electrodes. Superpisition or interference between the currents causes the combined electrical current to rise and fall (Burch et al, 2008). Low amplitude modulated frequencies elicit a "beating" or "tapping" sensation and muscle twitch response, while higher amplitude modulated frequencies elicit "buzzing" or "tingling sensation" and titanic muscle contraction ( Defrin et al., 2007). Several methods are available for testing muscle strength. These include manual muscle testing and dynamometry includes the use of handheld dynamometers, handgrip dynamometers, and isokinetic dynamometers (Sisto and Dyson-hudson, 2007). Isokinetic dynamometers measure torque produced at the anatomic joint throughout the available range of motion (ROM). Isokinetic dynamometers. Such as the kinCom (Chatanooga Corp, Chatanooga, Tennessee). Biodex (Biodex Medical systems. Inc) and Lido Active isokinetic System (Loredan, Inc, Davis , California ) measure torque by controlling the velocity of the movement and measuring the force applied via a force transducer (Sisto and Dyson-hunson, 2007). Isokinetic test record the torque produced throughout the entire ROM and allow for the identification of regions of strength or weakness within the range ( Remauld et al., 2005). Isokinetic assessment has primarily been recommended for strength testing as maximal force is applied during all phase of the movement at a constant velocity . The isokinetic mode is also safe to use with children because there is minimal risk of the muscle and joint injuries that can results from efforts to control the load if using free weights in one repetition -maximum testing (Mark et al., 2003).

Key Dates

Start date
Jun 20, 2025
Status verified
Jun 2025
Primary completion
Sep 20, 2025
Completion
Sep 30, 2025

Study Design

Enrollment
30 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Experimental: group 1
    the control group will receive traditional treatment program for one hour per session including (ultrasound stretching and strengthening exercise )
  • Experimental: group 2
    the study group will receive interferential therapy in addition to the same treatment program given to the control groups.

Primary Outcome Measure

changes in muscle strength [ Time Frame: after 3 months ]

Central Contacts

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