NSA Running vs VT Check App

Run Smarter (and harder) with the Norwegian Singles Approach (NSA) Calculate personalized training paces based on the proven Norwegian Singles Approach. Science-backed paces tailored to your fitness. WHAT YOU GET - Sub-threshold interval paces (3, 6, 10 minute reps) - Easy running pace that's actually easy - Distance-based equivalents (800m, 1600m, 2km+) - Race predictions (5K, 10K, Half Marathon, Marathon) - Training structure guidance WHY IT WORKS - 3 sub-threshold workouts per week - Truly easy running on other days - One long easy run weekly - No brutal VO2 max intervals - Sustainable intensity Build fitness without burnout. Quality volume while staying fresh. THE SCIENCE Based on elite Norwegian methods, adapted for everyday athletes by James Copeland. Sub-threshold training just below lactate threshold maximizes gains sustainably. FEATURES INSTANT PACE CALCULATOR Enter 5K time, get personalized paces. Time-based and distance-based options. Heart rate guidance included. TRAINING GUIDANCE Weekly structure, rest intervals, heart rate tips, adjustment strategies. EDUCATION Interactive tutorial, comprehensive FAQ, race prep guidance. PERFECT FOR Competitive runners, intermediate/beginner runners, recreational athletes, former cyclists/triathletes, 4-8 hour/week training volume. HOW IT WORKS 1. Enter 5K time 2. Get personalized paces 3. Follow: Easy → Sub-T → Easy → Sub-T → Easy → Sub-T → Long 4. Time trial every 4-6 weeks 5. Update and improve BEAUTIFULLY SIMPLE No subscriptions. No complicated plans. Just effective training paces. DISCLAIMER Not affiliated with James Copeland. Based on "Norwegian Singles Method: Subthreshold Running Kept Simple." Consult healthcare professional before starting training. Educational purposes only. Purchase the book for complete methodology and detailed plans.

VT Check helps endurance athletes identify their exercise intensity during workouts using real-time respiratory and heart rate analytics based on physiological studies and statistical modeling. HOW IT WORKS 1. Connect a respiratory sensor or heart rate monitor to your device 2. Perform workouts with real-time intensity feedback 3. Review detailed analysis on the web dashboard at vtcheck.com KEY FEATURES - Real-time zone detection with color-coded gauge (green/yellow/red) - Customizable workout templates (create on web, sync to phone and watch) - Automatic calibration that improves from your workout history - Drift analysis to verify metabolic stability - Multi-device sync between phone, watch, and web dashboard