London-based gym group, Gymbox, has launched a period-proof workout, Bloody Good Workout, which encourages members to sync training with their menstrual cycle.

This has come about through a collaboration with period underwear designers, WUKA, and female health experts, The Well HQ, and responds to the knowledge that women’s hormones vary throughout the month and their training schedules should reflect that.

The classes offer three different options of strength training to meet women where they are during their cycle – whether pre-menstrual, lulling in the luteal phase or feeling fiery during the follicular phase.

Classes start with an educational segment from The Well HQ to help members understand how the menstrual cycle can influence both the mind and body. They can then choose from three styles of strength training designed to align with their energy levels and mood: Flow Strength is a Pilates-inspired workout that focuses on alignment and control. Tension and Tempo is designed to build muscular endurance and resilience, and Dynamic Power features explosive, high-energy movements for lively days.

It concludes with a reflective sharing circle, offering space for open conversation about personal experiences and women’s health, fostering both community and body awareness.

Hannah Curtis-Nunn, product director at Urban Gym Group says: “At Gymbox, we believe empowerment starts with education. Women shouldn’t have to choose between listening to their bodies and pushing their limits and Bloody Good Workout makes that possible. This class is about giving women the knowledge, tools and confidence to train in sync with their cycle, not in spite of it. It’s bold, it’s science-backed, and it’s a big step forward for how the fitness industry supports women.”

Baz Moffat, co-founder of The Well HQ says: “Understanding your menstrual cycle is a game-changer for both physical and mental performance. The Bloody Good Workout gives women permission to listen to their bodies, train smarter and feel stronger through every phase of their cycle.”

Ruby Raut, founder of WUKA, said: “At WUKA, we’ve always believed that your period should never hold you back from doing what you love. Partnering with Gymbox and The Well HQ for the Bloody Good Workout is all about breaking taboos and helping women feel confident, supported, and unstoppable with leak-proof technology they can trust and a community that moves together.”

The classes have so far been introduced to the Farringdon, Elephant and Castle and Finsbury Park sites.