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.
An intermediate-level Pilates exercise, the side plank on the elbow requires you to support your body weight on your forearm and the side of one foot. Considerable core strength is needed to keep your hips from sinking toward the floor.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.