Using this information, we provide a troubleshooting guide for "runner's potbelly."
Problem: Most people simply don't think about holding in their stomachs; from neglect, abdominal muscles eventually weaken.
Solution: Don't be a slouch. Work on your posture by sitting up straight or standing tall with your stomach muscles held firm, your butt tucked in and your back straight.
Problem: Too-tight hamstrings eventually cause the lower back to tighten, which in turn may increase the curve in the lower spine.
Solution: Stretch the 'strings. And make sure to do it after all of your workouts. Hold your hamstring stretches for 15 to 30 seconds.
Problem: Runners often don't do strength work, and muscle tone and strength are important for maintaining good posture.
Solution: Get stronger. Start a strength-training program today, emphasizing the upper-body muscles of the stomach, back, chest and shoulders.
Problem: Abdominal distention can occur when you habitually consume too many calories just before going to bed. This causes the oblique muscles of the abdomen to relax, resulting in a potbelly.
Solution: Eat earlier. Try not to eat a big meal close to bedtime. You'll be more likely to burn off what you eat if you're active for several hours afterward.