Weight Gain in a Marathon Runner and Triathlete

In this case study, increasing daily calories and adding resistance training led to a 35% increase in resting metabolism and a 3% reduction in body fat over six weeks.

This case report documents a 20-year-old female runner with recurrent bone stress injuries, concluding they were due to low bone density from uncontrolled Celiac Disease and functional hypothalamic amenorrhea from low energy availability.

This study suggests that young female athletes, especially those with lower BMI, should be informed about the risk of menstrual irregularity associated with excessive sports activity.

This case report describes a 17-year-old boy with obesity who was diagnosed with severe hypothyroidism, leading to myopathy, rhabdomyolysis, acute kidney injury, and bradycardia. Following treatment with IV levothyroxine and liothyronine, his symptoms improved, and he achieved significant weight loss over five months.

This clinical case report describes a 72-year-old man who experienced significant weight loss and frequent loose stools over eight months, presenting with fatigue.