Hybrid HIIT-FES Cycling for Spinal Cord Injury

This trial aims to help people with spinal cord injuries (SCI) improve their health through a new exercise program. The study focuses on a combination of high-intensity interval training (HIIT) and functional electrical stimulation (FES) cycling, which involves cycling with both legs and arms. This program is called the Hybrid HIIT-FES Cycling Program. The goal is to determine if this exercise approach can improve heart health and muscle function more effectively than standard exercises. People who have had a spinal cord injury for at least a year and can cycle with their arms might be suitable candidates for this trial. As an unphased trial, this study offers a unique opportunity to explore innovative exercise methods that could enhance the recovery journey.

Research has shown that the Hybrid HIIT-FES Cycling Program is generally safe for people with spinal cord injuries (SCI). This high-intensity interval training combines arm and leg exercises with electrical stimulation to aid muscle movement. Studies have found that most participants tolerate it well, experiencing no serious side effects.

For instance, one study found that people with SCI who tried hybrid HIIT attended sessions regularly, with very few discontinuing. This suggests they found the exercise both manageable and safe. Another study reported improvements in muscle health and fitness without major negative effects.

Researchers are excited about the Hybrid HIIT-FES Cycling Program for spinal cord injury because it combines high-intensity interval training (HIIT) with functional electrical stimulation (FES) to enhance muscle function, which is not typically seen in standard care. Unlike traditional therapies that often involve only passive or active range of motion exercises, this program actively engages muscles in both voluntary and electronically stimulated cycling, potentially offering better strength and endurance improvements. By integrating these elements, the program aims to maximize rehabilitation outcomes and improve quality of life for individuals with spinal cord injuries.

Research has shown that functional electrical stimulation (FES) cycling can enhance muscle health in the lower body for people with spinal cord injuries (SCI). It builds muscle, reduces fat, and improves aerobic fitness. In this trial, one group of participants will engage in a Hybrid HIIT-FES Cycling Program, which combines high-intensity interval training (HIIT) with FES cycling. This combination may improve muscle function and heart health in less time. FES cycling has been linked to increased strength and better blood flow in the legs, suggesting that the Hybrid HIIT-FES Cycling Program might effectively improve health outcomes for individuals with SCI.¹²³⁶⁷