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.
Easier Version. If you are not quite able to perform a side plank on the elbow with good form, you can modify the exercise to strengthen many of the same muscles. Instead of extending your legs, bend your knees so your forearm and the side of one knee support your body weight.econdary Muscles. The side plank also works several other muscles that provide additional stability as you hold the position. These muscles include the gluteus maximus, the quadriceps on the front of your thighs and the hamstrings on the back of your thighs.