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Clinical Trial Summary

This study evaluates whether a 4-week exercise training program focusing on lower limb flexors can improve lower limb motor function late after stroke. It is hypothesized that there would be significant improvements in gait and strength of the flexor muscles as a result of the training. It is also hypothesized that the training effects, if any, would be retained at 4 weeks after ending the training.

Clinical Trial Description

It is known that the muscles that flex the hip, knee, and ankle joints are responsible for bringing the leg up and forward during walking and for a successful recovery from a slip or trip. Many previous studies have focused on strengthening the lower limb muscles that support the body in standing and walking (the so-called anti-gravity extensor muscles) but the training targeting the lower limb flexors has rarely been emphasized in stroke rehabilitation. Therefore, it is the intent of this exploratory study to find out whether an exercise training program focusing on lower limb flexors can improve lower limb motor function late after stroke.

Ten participants with chronic stroke will be recruited. Their lower limb muscle function and walking performance will be assessed at baseline (2 to 3 times within the 2 weeks prior to starting the training), at the end of training, and 4 weeks later.

Each subject will perform biking exercises under supervision, 2-3 times per week for 4 weeks (30 minutes each). The bike pedals are moving backward at a preset speed regardless of user effort. With feet strapped to the pedals, the participant will be asked to activate the hip, knee, and ankle flexors simultaneously when the pedal is moving up and then relax. Heart rate (HR) will be monitored continuously using a fingertip pulse monitor to ensure the maximum training HR is no more than 75% of the subject's HR Reserve. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03833544
Study type Interventional
Source Methodist Rehabilitation Center
Contact Dobrivoje S Stokic, MD, PhD
Phone 601-364-3414
Status Not yet recruiting
Phase N/A
Start date March 1, 2019
Completion date December 30, 2019

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