Instant Effort

InstantEffort Data Field Description Real-time effort calculation combining current speed and recent elevation gain over the last 5 seconds. Formula Instant Effort = (Elevation gain in 5s × 36 ÷ 5) + (Average speed of last 5s × 3.6) How it works Maintains 5-second rolling window of altitude and speed data Calculates elevation gain over 5 seconds (ignoring descents) Converts to km/h equivalent: 36 × ascent rate + 3.6 × speed Most responsive to immediate effort changes Updates continuously for real-time feedback Scientific Background The conversion factor is derived from exercise physiology research on effort equivalency: Base principle: 100m elevation gain ≈ 1km flat distance effort Time conversion: 36 factor converts m/s elevation rate to km/h equivalent Speed conversion: 3.6 factor converts m/s to km/h Physiological basis: Studies show similar metabolic cost between climbing and flat running According to Scarf's 2007 mountain running analysis and subsequent grade-adjusted pace research, the energy expenditure for vertical climbing approximates 10x the horizontal equivalent. This data field provides instantaneous effort feedback using a 5-second window for maximum responsiveness. References: Scarf (2007). "Analysis of hill runners performance data" Grade-adjusted pace calculator methodologies Mountain running time analysis studies Exercise physiology research on climbing vs. flat running energy costs Usage Ideal for interval training, hill repeats, and situations requiring immediate effort feedback. Most sensitive to acceleration, deceleration, and gradient changes. Love the instant feedback? If InstantEffort helps you crush those hill intervals and track your real-time performance, consider buying me a coffee! Your support fuels development of new features and keeps the updates coming. PayPal: [email protected] Have a feature request or idea to make InstantEffort even better? Drop me a message with your coffee tip or use "Contact Developer" - I personally read every suggestion! Your feedback directly influences what gets built next. Train hard, track smart!

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