JJB Performance

Free Evidence-Based Tools

Interactive assessments and calculators built on peer-reviewed research. No fluff, no quick fixes — just information that gives you control.

RED-S & Energy Availability

Energy Availability Calculator

Are you eating enough to perform? Calculate your EA in 90 seconds.

Strength & Nutrition

Protein Calculator

How much protein do you actually need? Personalised to your body, training, and goal.

Cycle-Aware Training

Cycle Awareness Assessment

How cycle-aware is your training? 12 questions. Not cycle-syncing — cycle-awareness.

Postpartum Recovery

Postpartum Readiness Assessment

Is your body ready to return to training? Based on Goom, Donnelly & Brockwell guidelines.

Coaching Clients

Client Assessment

Comprehensive intake assessment for JJB Performance coaching clients.