A child with JIA engaging in gentle exercises at home.

Exercise & JIA: Can a Home Program Boost Strength?

Elliot Brynn in Health & Wellness August 2025 • 3 min read.

"Exploring the feasibility and safety of a 6-month exercise plan for kids with juvenile idiopathic arthritis."

For children battling juvenile idiopathic arthritis (JIA), everyday activities can be tougher than they should be. Arthritis-related muscle weakness and bone density issues can limit their physical abilities, and make them less active.

Exercise is widely recognized as a key part of managing JIA, but finding the 'sweet spot' in an exercise program – one that actually improves bone and muscle health – is the real challenge. What type of exercises, how often, and for how long?

A recent study aimed to answer those questions by testing a 6-month exercise program for children with JIA. The goal? To see if it was safe, doable, and if it could make a real difference in their strength, bone health, and overall well-being.

The Home Exercise Experiment: What Did It Involve?

A child with JIA engaging in gentle exercises at home.

The study, part of the larger LEAP (Linking Exercise, Physical Activity and Pathophysiology in Childhood Arthritis) project, recruited 24 children with JIA. They embarked on a 6-month home-based exercise program that included:

Researchers checked in on the kids' bone mass, muscle function, and overall health at the start, after 6 months, and again 6 months later to see if any gains were maintained.

Jumping exercises (to put healthy stress on bones)
Handgrip exercises (to build upper body strength)
Resistance training (using Therabands)
One monthly group exercise session (for fun and guidance)

Throughout the program, adherence was tracked using weekly activity logs.

The Takeaways: Safe, But Challenging

The study revealed that children with JIA can safely participate in a home-based exercise program designed to boost muscle and bone strength. Excitingly, participants reported improvements in fatigue, which could encourage even greater participation in physical activities.

However, the program faced significant hurdles. Adherence to the exercise plan was low, and decreased over time. This highlights the need to address what makes it hard – and what could make it easier – for kids with JIA to stick with exercise programs.

While the study didn't show sustained improvements in bone or muscle outcomes, it paves the way for future research. By tweaking the exercise program and finding better ways to support adherence, we can hopefully unlock the full potential of exercise to improve the lives of children with JIA.

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This article is based on research published under:

DOI-LINK: 10.1186/s12969-018-0283-4, Alternate LINK

Title: Feasibility And Safety Of A 6-Month Exercise Program To Increase Bone And Muscle Strength In Children With Juvenile Idiopathic Arthritis

Subject: Immunology and Allergy

Journal: Pediatric Rheumatology

Publisher: Springer Science and Business Media LLC

Authors: Kristin M. Houghton, Heather M. Macdonald, Heather A. Mckay, Jaime Guzman, Ciarán Duffy, Lori Tucker

Published: 2018-10-22

Everything You Need To Know

What is Juvenile Idiopathic Arthritis (JIA), and why is it a concern for children?

Juvenile Idiopathic Arthritis (JIA) is a chronic autoimmune disease that causes inflammation in the joints of children. It's a significant concern because the inflammation can lead to muscle weakness and decreased bone density, limiting physical activity. The challenges faced by children with JIA underscore the need for interventions like exercise programs to help manage symptoms and improve overall well-being.

What exercises were included in the 6-month program?

The 6-month home-based exercise program included jumping exercises, handgrip exercises, resistance training using Therabands, and a monthly group exercise session. These activities were chosen to specifically target muscle and bone health. Jumping exercises put healthy stress on bones to improve bone density. Handgrip exercises focused on upper body strength, and resistance training with Therabands provided a way to build muscle strength at home. The group sessions offered guidance and motivation.

What is the LEAP project?

The LEAP project (Linking Exercise, Physical Activity and Pathophysiology in Childhood Arthritis) is a larger initiative that the study is part of. It focuses on exercise, physical activity, and how these factors relate to the disease process in children with arthritis. This project highlights the broader effort to understand and improve the lives of children with JIA through physical interventions.

What was the main finding of the exercise study?

The study's primary finding was that children with JIA can safely participate in a home-based exercise program. This is important because it shows that a structured exercise plan can be implemented safely, offering a way to improve muscle and bone strength in these children. This safety finding paves the way for wider adoption of such programs, provided that exercise programs are carefully designed and monitored.

What were the additional benefits experienced by the participants?

The study participants reported improvements in fatigue. This is significant because it suggests that the exercise program not only addressed physical symptoms but also improved the children's energy levels, which can encourage them to participate in physical activities. This positive impact on fatigue could create a positive feedback loop, where increased activity leads to further improvements in both physical and psychological well-being.