Mom Tries Copenhagen Plank Daily for a Month, Gets Stronger

Tonyael Miller couldn't hold a Copenhagen plank for more than 15 seconds when she first tried it. The certified personal trainer and mom, who already worked out five to six days a week, was shocked when this side plank variation left her shaking and collapsing within seconds.

But Miller saw it as an opportunity. After battling postpartum depression and anxiety, she'd learned that movement was her therapy, and she was ready for a new challenge that would strengthen both body and mind.

The Copenhagen plank targets muscles most people forget about. Unlike regular planks, this move involves placing your top calf on an elevated surface like a bench, firing up your inner thighs, glutes, obliques, and deep stabilizer muscles all at once.

Miller started with a modified bent-knee version, holding for just 20 seconds at a time. She added the exercise almost daily, even on rest days, gradually increasing by 5 to 10 seconds each week. The next day, her legs trembled like she'd just finished an intense spin class.

Within the first week, something shifted. Her hip stability improved and knee discomfort during leg workouts faded. She stopped slouching by the end of long days, and everyday movements felt more controlled and effortless.

The mental changes surprised her most. Each plank required complete focus on breath and form, creating an unexpected moment of mindfulness. On chaotic days when she felt overwhelmed, those five to six minutes of intentional work became a reset button.

By week two, Miller added evening plank sessions to wind down her day. What began as a strength challenge transformed into a ritual for releasing stress and finding calm.

Why This Inspires

Miller's journey shows how small, consistent challenges can create ripples far beyond the gym. She committed to showing up for herself daily, even when tired, and that discipline strengthened her confidence in every area of life.

By week three, she held the full Copenhagen plank for 45 seconds without modifications. Her form had transformed completely, and the exercise that once seemed impossible now felt achievable.

Miller now teaches her daughter proper workout form and carries the mental resilience from her planks into tough conversations and daily routines. The strength she built supports her business, her family, and most importantly, her relationship with herself.

Sometimes the hardest challenges become the most rewarding rituals.