James holds a CrossFit Level 3 Coaching certification and a Level 3 Diploma in Sports Massage, and is currently completing a Master's degree in Sports Therapy. He delivers our specialty programs, working closely with members on movement quality and the capacity necessary for building genuine long-term strength. His ongoing academic training keeps his coaching evidence-informed and ever-evolving. He also delivers sports massage through Kuma Clinic, on-site at ShiroKuma.

Katherine is a Level 3 Personal Training Coach and Certified Mummy MOT Fitness Professional, with a strong foundation in strength and conditioning and experience across functional fitness coaching. She has previously completed the CrossFit Level 1 Trainer course and brings together formal education, specialist women’s health training, and years of hands-on coaching experience. Her work focuses on bridging the gap between physiotherapy and fitness, helping women build strength safely and confidently through breathwork, core and pelvic floor integration, technical precision, and progressive loading.

Together, James and Katherine share a lifelong passion for learning and a professional approach to coaching that keeps members safe, supported, and consistently progressing toward their goals with confidence.