"7-day experiment: The surprising results of my daily standing ab exercise"
The author, a fitness editor, took on the challenge of doing the goblet march, a standing ab exercise, every day for a week. They found the exercise to be more challenging than expected and noticed improvements in their core strength, particularly in the obliques. They also experimented with modifications, such as overhead marches, to add variety to the routine. While a week is not enough to see visible results, the author plans to continue incorporating the goblet march into their workouts for its benefits in core stability and its potential impact on running performance.