Work Capacity
Measured
Power your application with the most advanced APIs for quantifying athletic performance. Don't just log workouts, measure fitness.
The Physics of Fitness.
Forwod represents the frontier of multi-modal biomechanical analytics, utilizing Newtonian mechanics to deliver high-fidelity power-duration modeling. We abstract away the daunting calculus of human performance so you can deploy a world-class analytical engine instantly.
Built by engineers and athletes to transform "intensity" from a subjective feeling into a verifiable physical constant for your application.
"Fitness is... your work capacity across broad time and modal domains."
Core Analytical Endpoints
Integrate our biomechanical engine directly into your architecture to transform raw data into high-fidelity fitness metrics.
Workout Power
Translate workout logs into horsepower or watts.
This endpoint quantifies true mechanical intensity across multi-modal movements. By applying our Newtonian engine to "flat" data (reps, weight, and time), we normalize performance against an athlete's specific biomechanical profile to reveal their actual power output in any given WOD.
RepMax
Capture peak power for maximal-effort repetitions.
RepMax calculates the high-force, short-duration ceiling of an athlete’s performance. By analyzing the absolute mechanical output of single-rep movements, this endpoint identifies the high-intensity "anchor" of the power-duration profile and defines the athlete’s neuromuscular limit.
Work Capacity
Overall fitness across broad time and modal domains
Move beyond individual workout tracking to understand an athlete's true engine. This metric provides a unified snapshot of power over the month, providing a single fitness measurement metric to chase and push each month. Your work capacity = your fitness.
Power Curve
Generate a multi-modal Power-Duration (mPD) curve.
Visualize the full spectrum of physical capacity. By synthesizing data from varied workouts, this endpoint maps performance decay and metabolic conditioning, providing athletes with a definitive map of their power-producing potential from 1-second bursts to endurance efforts.
Interactive API Demo
Slide the timeline to observe the Forwod high-fidelity Newtonian physics engine instantly recalculate work capacity arrays via zero-latency endpoints.
1. Select Profile
Profile: Marcus is 6 feet tall and 220lb.
2. Log "Murph" Workout
1 mile Run
100 Pull-ups
200 Push-ups
300 Air Squats
1 mile Run
Power for Murph
Work Capacity (Current)
Power Curve
Simple, Usage-Based Pricing
Pay only for the calculations you run. Built on Stripe Metered Billing for massive scale.
Standard
For growing applications logging functional workouts.
- Access all Core Endpoints
- Usage-Based Billing
- Technical Support
Enterprise
For high-volume platforms, military and first responders.
- SLA Guarantees
- Priority Support
- Software Development Kit (SDK) Option

