A combination of factors may be involved. Possible causes of persistent stuttering include: 1  Abnormalities in speech motor control. Some evidence indicates that abnormalities in speech motor control, such as timing, sensory and motor coordination, are implicated.  Genetics. Stuttering tends to run in families.
Do Plank Exercises Work? The plank is an exercise that works the bodyâs core, specifically the abdominal muscles and lower back. The exercise is traditionally performed as part of yoga and Pilates regimens but is effective for anyone looking to improve core strength and balance.
The reverse plank exercise isolates and strengthens the gluteus (butt) muscles and hamstrings. Done correctly, it engages both the abs and the lower back muscles. The reverse plank exercise can also be used as a rehab exercise to improve core and spinal stabilization.