Strength Training Expert Views

Nick Taylor's study explored whether individualized progressive resistance strength training could improve mobility-related function in young people with diplegic cerebral palsy (CP). The research involved 48 participants aged 14 to 22 years, who underwent a 12-week program of strength training or usual care. While participants who did strength training became stronger, objective measures of mobility did not show improvement. However, participants perceived their mobility had improved, as reflected in self-reported scales. This suggests that strength training may not directly enhance complex motor tasks like walking but could offer psychosocial benefits, such as increased confidence.

Connor Johnstone emphasizes the importance of strength training for individuals with cerebral palsy, highlighting its lifelong impact on muscle function and overall quality of life. He notes that muscles are highly adaptable (plastic), and even with cerebral palsy, there is significant potential for improvement through resistance exercises. Connor also discusses the flexibility in settings for strength training, ranging from gyms to using body weight or adapted equipment, making it accessible for individuals across different levels of motor function. He encourages clinicians and researchers to explore creative ways to implement these interventions and stresses the need to stay updated with the latest evidence.

Strength training, also known as resistance training, has been studied as a physical activity intervention for individuals with cerebral palsy (CP). A systematic review and meta-analysis of 22 studies revealed that while there was no significant improvement in walking speed or endurance, there was a notable increase in lower limb muscle strength among participants. The studies varied in duration, typically lasting 6-12 weeks, with sessions occurring 2-3 times per week. However, gaps remain in understanding the long-term benefits, mental health outcomes, and quality of life impacts of such interventions. Jocelyn Cohen, CPARF’s Vice President of Education, emphasized the importance of tailoring physical activities to individual needs, considering factors like energy expenditure, pain levels, and enjoyment. She also highlighted the need for more high-quality research to better understand effective interventions for adults with CP.

Noelle Moreau from LSU Health Sciences Center explains that cerebral palsy leads to muscle weakness and reduced bodily function, partly due to central nervous system injury. However, muscle tissue is adaptable and can be improved through voluntary exercise, particularly resistance training. This type of training can increase muscle size and fiber length, enhancing muscle strength and range of motion. Moreau emphasizes the importance of proper dosing parameters, such as intensity, volume, and frequency, to optimize the benefits of resistance training for children with cerebral palsy.

Connor Johnstone emphasizes the importance of strength training for individuals with cerebral palsy, particularly focusing on muscle hypertrophy (growth). He explains that people with cerebral palsy often experience muscle atrophy (shrinking), which makes building muscle crucial for improving force generation and overall movement. Connor highlights the need for task-specific training, such as targeting different muscle fibers (type 1, type 2a, and type 2b) depending on the desired outcome, like power or endurance. He also discusses strategies for hypertrophy, including adjusting rep ranges, sets, and load during exercises.

Dr. Karen Pape emphasizes the importance of proper form in strength training for individuals with cerebral palsy. She explains that functioning out of alignment can lead to chronic musculoskeletal pain, which is a major issue for adults with cerebral palsy. Dr. Pape shares examples of how focused therapy and motivation can lead to significant improvements, even in adulthood. She highlights the potential for progress and encourages therapists to adopt better approaches to treatment.

Professor Diane Damiano and Dr. Ginny Paleg emphasize the importance of strength training for individuals with cerebral palsy, particularly starting from a very young age. They highlight that muscles in children with cerebral palsy begin to change as early as 15 months, and early intervention is crucial to prevent divergence from typical muscle development. They advocate for evidence-based practices, stressing that strength training is a 'green light' intervention supported by decades of research. They also caution against outdated or non-evidence-based methods ('red light interventions') and encourage therapists to focus on proven strategies to maximize the effectiveness of care.

The expert panel, including physiotherapists and an occupational therapist, emphasized the importance of strength training for individuals with cerebral palsy, especially after interventions like serial casting or surgery. They explained that while serial casting can help improve muscle length, it must be followed by active strength training to make functional use of the new muscle range. This approach ensures better outcomes in terms of mobility and function. The experts also highlighted that strength training is evidence-based and can lead to the best results in the shortest time when combined with other therapies.

Dr. Sian Williams emphasizes the importance of individualized and goal-focused approaches in strength training for children with cerebral palsy. She highlights the need to activate the correct muscles before starting strength training to ensure the targeted muscle is being worked on effectively. Dr. Williams also discusses the decline in muscle function that begins between ages 7 to 9 in children with cerebral palsy and stresses the importance of measuring changes and understanding the effects of interventions. She notes that while strength training is a promising intervention, the research in this area is still limited and growing.

Annie Chappell discusses the importance of strength training for children with cerebral palsy, emphasizing that maintaining muscle health is as crucial as improving it. She highlights the need for longer intervention periods, suggesting that 20 weeks of training, split into two school terms, can lead to significant improvements. Chappell also notes the importance of adherence to the program and the intensity of training for motor learning. She believes that families can achieve these goals with proper explanation and motivation.