Group Exercise After Hip Replacement Surgery

Study Overview
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Brief Summary
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The purpose of this study is to determine which group exercise one should choose when hip osteoarthritis patients have undergone hip replacement surgery. To determine this, we want to answer the following research question: Are there differences in function and muscle strength in osteoarthritis patients who conduct group training either on land or in water in the rehabilitation phase following hip replacement surgery?

Official Title
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What Type of Group Exercise Should be Chosen for Osteoarthritis Patients in the Rehabilitation Phase Following Hip Replacement Surgery?

Conditions
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Osteoarthritis, Hip

Intervention / Treatment
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* Other: Group training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Hip osteoarthritis patients who undergo surgery with total prosthesis at St. Olav's Hospital, Department Orkdal. Participants must live in commuting distance from the hospital, as the training is organized as outpatient training Participants must be able to take instruction and master the Norwegian language Exclusion Criteria: Patients who experience serious complications after surgery if a person has a disease that causes that one can not complete the planned training
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Group training on land<br>Group training in water and on land are carried out by the same principles, which is to improve general function, and to improve function and strength around the operated hip. | Other: Group training<br>* Each session lasts 50 minutes and consists of warm-up, mobility training, strength training, balance training and endurance training. Mobility training is conducted to increase range of motion in the operated hip, strength exercises are conducted to strengthen muscles around the operated hip, balance training are conducted to improve stability around the operated hip and endurance training are conducted to increase patients' physical capacity. This is in line with current guidelines for the exercise of osteoarthritis patients.<br>|
| Active Comparator: Group training in water<br>Group training in water and on land are carried out by the same principles, which is to improve general function, and to improve function and strength around the operated hip | Other: Group training<br>* Each session lasts 50 minutes and consists of warm-up, mobility training, strength training, balance training and endurance training. Mobility training is conducted to increase range of motion in the operated hip, strength exercises are conducted to strengthen muscles around the operated hip, balance training are conducted to improve stability around the operated hip and endurance training are conducted to increase patients' physical capacity. This is in line with current guidelines for the exercise of osteoarthritis patients.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Function1 | Function is evaluated using a questionnaire, Harris Hip Score (HHS) and by using 6-minute walk test (6MWT). | Pre-operative | 
| Function2 | Function is evaluated using a questionnaire, Harris Hip Score (HHS) and by using 6-minute walk test (6MWT). | Post-operative | 
| Funtion3 | Function is evaluated using a questionnaire, Harris Hip Score (HHS) and by using 6-minute walk test (6MWT). | After 12 weeks training | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Muscle strength1 | Muscle strength around the operated hip are evaluated by measuring isometric muscle strength in hip-abduction and knee-extension using a hand-held dynamometer (HHD) from Lafayette Instruments. | Pre-operative | 
| Muscle strength2 | Muscle strength around the operated hip are evaluated by measuring isometric muscle strength in hip-abduction and knee-extension using a hand-held dynamometer (HHD) from Lafayette Instruments. | Post-operative | 
| Muscle strength3 | Muscle strength around the operated hip are evaluated by measuring isometric muscle strength in hip-abduction and knee-extension using a hand-held dynamometer (HHD) from Lafayette Instruments. | After 12 weeks training | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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exercise, hydrotherapy