Day two followed the same pattern. I could feel the crunches in my core more quickly this time, … See more

On day three, I decided to mix things up and try bicycle crunches with a hold. For this I slowed things down, pausing for a count of two each time my elbow reached my knee. I … See more

On day four, I tagged my 100 bicycle crunches onto the end of a strength session in the gym. Grabbing a Bosu ball, I opted to do the bicycle crunches on there, forcing my core to … See more

On days five and six, I returned to the solid ground but practiced holding one of the best adjustable dumbbellsbetween my hands as I crunched. This upped the ante, and I could … See more

At last the end was in sight! On the final day of this challenge, I strapped a set of the best ankle weightsand got crunching. Ankle weights can easily cause joint strain, so if you’re new … See more