MST in Patients With Inflammatory Rheumatic Disease

NCT ID: NCT04998955

Last Updated: 2021-08-10

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 24 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2018-10-01
• Study Completion Date: 2018-12-21

Brief Summary

The purpose of this study is to investigate the feasibility of 10 weeks of maximal strength training (MST) in patients with inflammatory rheumatic disease. As well as the effects of MST on maximal strength, rate of force developement and quality of life in this patient population.

Detailed Description

Patients with inflammatory rheumatic diseases (IRD) such as rheumatoid arthritis, spondyloarthritis and systemic lupus erythematosus have reduced strength and muscle mass in the lower extremities compared to healthy control groups. This attenuation results in impaired physical function and health-related quality-of-life. Maximum muscle strength is an important indicator of total mortality, even when adjusted for cardiovascular health. Therefore, international guidelines encourage strength training since it has been demonstrated that resistance exercise using moderate loads (≤80% of one repetition maximum; 1RM) result in improved strength and function without worsening pain or disease activity.

In this trial patients are randomized into either a maximal strength training (MST) intervention group or a control group. The intervention period will last 10 weeks. The MST group will perform two supervised MST sessions per week, on non-consecutive days, in a seated horizontal leg press apparatus. The control group will continue with their existing activity routines. One MST session consist of 4 series of 4 repetitions maximum (4RM) utilizing heavy loads (~90 % of 1RM), separated by 3 minutes break and lasts approximately 15-20 minutes. The MST intervention follows the principle of linear progression continuously adjusting the resistance to achieve the targeted 4RM training load. The control group will be given supervised introduction to effective strength training after the intervention period.

The purpose of this intervention is to evaluate the feasibility of the highly potent MST intervention and its impact on 1RM, rate of force development (RFD) and quality of life in the IRD patient population. MST has been documented to yield almost twice the increase in both 1RM and RFD as conventional strength training performed with moderate resistance. However, it is uncertain if MST is well tolerated by the IRD patient population which is characterized by having pain, stiffness, and joint swelling. Before and after the training period, identical testing (approximately 60 min) will be performed by both intervention groups. The testing will include measurements of maximal oxygen uptake in an endurance test as well as maximal muscle strength, recorded as 1RM, and dynamic RFD both carried out in a horizontal leg press apparatus. Additionally, quality of life questionnaires will be obtained.

Conditions

Inflammatory Rheumatism

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

MST group

Exercise intervention, 20 supervised MST sessions

Group Type: EXPERIMENTAL

Maximal strength training

Intervention Type: BEHAVIORAL

Exercise intervention utilizing 4 x 4 repetitions heavy resistance training

Control group

IRD patient controls

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

Maximal strength training

Exercise intervention utilizing 4 x 4 repetitions heavy resistance training

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• Inflammatory rheumatic disease

Exclusion Criteria

• Inability to complete the testing procedures
• Pregnancy
• Not able to perform exercise intervention
• Planed surgeries or other plans during initial exercise intervention period than directly will effect the testing or training.
• unstable ischemic heart disease
• unstable aortic stenosis or aneurysm
• Less than 80% compliance of planned training sessions

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Molde University College

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Jan Helgerud, PhD

Role: PRINCIPAL_INVESTIGATOR

Norwegian University of Science and Technology

Locations

Myworkout - Medical Rehabilitation Clinic

Trondheim, Please Select, Norway

Countries

Norway

References

Haglo H, Berg OK, Hoff J, Helgerud J, Wang E. Maximal strength training in patients with inflammatory rheumatic disease: implications for physical function and quality of life. Eur J Appl Physiol. 2022 Jul;122(7):1671-1681. doi: 10.1007/s00421-022-04948-w. Epub 2022 Apr 19.

Reference Type: DERIVED

PMID: 35438424 (View on PubMed)

Other Identifiers

HHRevma2 - MST

Identifier Type: -

Identifier Source: org_study_id