Fitorex
Guides

Understand why, not just what to do

All 21 in-app guides, complete and open. Every section explains the mechanism and ends with how to apply it.

Hypertrophy How muscle grows and which variables control that growth, from the mechanisms to practical programming. 14 sections Strength Gaining strength is largely about learning to produce tension: neural adaptations, the big lifts and intensity. 8 sections Nutrition Energy, protein and the rest of the macros: the hierarchy of what really moves the needle. 9 sections Fat loss Deficits, metabolic adaptation, NEAT, cardio and how to lose fat while preserving muscle. 9 sections Recovery and sleep Progress happens between sessions: sleep, stress management and the signs of overtraining. 7 sections Women The menstrual cycle, contraceptives, pregnancy and menopause applied to training and nutrition. 8 sections Older adults Sarcopenia, strength, power and protein: training to live more years with independence. 6 sections Teenagers Strength training is safe and beneficial for young people: technique, growth and sensible nutrition. 6 sections Injuries and pain Low back pain, shoulders, knees and tendinopathies: what the evidence says about pain, load and returning. 7 sections Cardio and energy systems Zones, VO2 max, HIIT vs. LISS and how to combine cardio with strength without losing performance. 10 sections Supplement science Which supplements have real evidence, which are marketing and how to use them safely. 10 sections Periodisation and programme design How to organise training over time: periodisation models, splits and fatigue management. 10 sections Body composition and progress What each method really measures (scales, skinfolds, DEXA…) and how to track your progress without obsessing over a single number. 10 sections Specific diets Intermittent fasting, keto, vegan, Mediterranean… what the evidence says about each approach and which one suits you. 11 sections Performance pharmacology and doping Informational content on steroids, hormones and banned substances: what they do, their real risks and why anti-doping control exists. This is not a usage guide. 8 sections Technique, biomechanics and mobility Why there is no universal 'perfect technique', how a movement is really learned and what improves your range of motion. 11 sections Training by sport and goal How to adapt general training principles to your specific sport: running, combat sports, CrossFit, bodybuilding and more. 8 sections Metabolic health and biomarkers What happens to your blood when you train: why certain values rise without cause for concern, and when you should pay attention. 7 sections How to read scientific evidence What the evidence levels you see in each lesson really mean, and how to tell a real finding from statistical noise or marketing. 9 sections Psychology and adherence Why the problem is almost never 'a lack of motivation': how habits, consistency and your relationship with exercise really work. 11 sections Power and plyometrics The speed at which you apply force: jumps, plyometrics and why being strong is not the same as being explosive. 9 sections

With a coach that has read them

Fito answers from these very guides and tells you which one each claim comes from.

Free. No account required. Works offline from the first launch.