This fitness wiki is built for gym newcomers, intermediate members with imperfect form, home-training enthusiasts working out without a personal trainer, patients starting rehabilitation programs, and new trainers looking for authoritative teaching material. Rooted in guidelines from the American College of Sports Medicine (ACSM), the International Sports Sciences Association (ISSA), and the National Strength and Conditioning Association (NSCA), it details 880+ gym machines and exercises—Chest Press, Lat Pulldown, Leg Press, Seated Row, Shoulder Press, Leg Extension, Leg Curl, Hip Abductor, Calf Raise, and more—with equipment setup, prime mover and synergist muscle anatomy, injury-free concentric-eccentric movement paths, corrective cues for the most common mistakes (elbow lockout, rolled shoulders, hyperextended lumbar), and goal-based rep/set presets for hypertrophy (8–12 reps), strength (3–6 reps), and endurance (15–20 reps). Never fully lock out joints—100% extension transfers load from muscle to bone, cartilage, and ligaments, dramatically raising the risk of meniscus damage, ligament tears, and arthritis. Extend only to 90–95% to maintain continuous muscular tension throughout each repetition.

• Strength: 85-90% 1RM | 3-5 sets | 3-6 reps | 2-3 min rest
• Hypertrophy: 70-80% 1RM | 3-4 sets | 8-12 reps | 60-90 sec rest
• Endurance: 50-65% 1RM | 2-3 sets | 15-25 reps | 30-45 sec rest