1. Introduction Sore abdominal muscles after a day of heavy laughing result from repeated, forceful, and involuntary isometric and concentric contractions of the core musculature. This unaccustomed mechanical stress leads to muscular fatigue and microscopic tearing in the muscle fibers, precipitating a condition recognized clinically as delayed onset muscle soreness. While humans utilize these muscles … Read more
1. Introduction Soreness to the touch in the lower abdomen following a plank exercise is a clear manifestation of delayed onset muscle soreness, resulting from the intense isometric contraction required to maintain spinal stability. The plank demands continuous tension from the deep core musculature, specifically the transversus abdominis and the lower fibers of the rectus … Read more
1. Introduction Coughing is a forceful respiratory action that requires rapid and repeated contractions of the abdominal wall musculature to expel air from the lungs. When you cough persistently, these muscles undergo intense physical exertion similar to a strenuous core workout, leading to microscopic muscle fiber tears and subsequent delayed onset muscle soreness. This physiological … Read more