What we do
At W10NIS, we specialize in advanced physiological performance management for elite WTA Tour athletes. Our work is grounded in the science of exercise physiology, autonomic regulation, and female-specific adaptation. We integrate high-resolution HRV analytics, individualized baseline tracking, and menstrual-phase intelligence to deliver performance strategies that are biologically aligned and precisely timed.
With a sole scientific focus on female athlete physiology, we support coaching teams with data-informed decisions that optimize training intensity, recovery distribution, taper execution, and season-long workload management. Our approach addresses the physiological complexity of elite women’s tennis through real-time monitoring and longitudinal modeling.
Using Firstbeat Technologies, Kubios HRV Scientific, and our proprietary systems PhysioState and CycleShadow, we translate autonomic signals into structured daily and weekly reports that guide every phase of performance planning—from off-season recalibration to in-season tapering and recovery.
Our approach
Our approach is grounded in high-resolution physiological data and the science of autonomic regulation. At W10NIS, we apply validated HRV metrics, individualized baseline modeling, and cycle-aware interpretation to assess recovery status, adaptive readiness, and long-term stress trends with precision.
Using Firstbeat Technologies and Kubios HRV Scientific, we monitor physiological signals across training, competition, travel, and recovery periods. These data streams are processed through our proprietary PhysioState Engine, which detects readiness shifts, autonomic suppression, and overreaching risk. The resulting outputs are delivered as structured reports tailored to coaches, strength and conditioning staff, physiotherapists, and athletes.
CycleShadow overlays menstrual cycle data from FitrWoman onto physiological trends, enabling phase-specific interpretation and biologically timed adjustments to load, tapering, and recovery strategies. This integration enhances performance planning by accounting for the hormonal rhythms that influence adaptation, fatigue, and resilience.
Every report is individualized. Every recommendation is grounded in biology. Our system delivers the clarity required to support intelligent, high-stakes performance decisions across the season.
Key Services
On-Court Training Monitoring
We monitor on-court training sessions using Firstbeat Sports sensors to quantify internal load, intensity distribution, and HRV dynamics in real time. Metrics such as TRIMP and R-R intervals are analyzed to assess whether the training stimulus matches the athlete’s current readiness state. This allows coaching teams to adjust workload on the court itself, aligning physical demand with recovery capacity. Over time, trend analysis supports better session planning, load progression, and injury prevention through more precise control of training stress..
On-Court Match Monitoring
Match play imposes a unique physiological load that differs from training. Our service captures match-day intensity using Firstbeat sensors and evaluates post-match autonomic recovery through Kubios HRV. We assess markers such as RMSSD, stress index, and recovery slope to understand how the body responds to competitive stress. This data is used to adjust short-term training loads, optimize recovery windows, and anticipate fatigue accumulation during multi-match tournaments. It supports sustained performance under pressure and protects against match-induced overreaching.
Off-Court Conditioning & Training Load Analysis
We track the physiological response to strength and conditioning sessions by collecting HR and HRV data during off-court training. Internal load is quantified using TRIMP and VO2 estimates, while Kubios is used to analyze changes in HRV-based threshold markers like DFA a1. These indicators help determine whether adaptations are occurring or if training stress exceeds recovery capacity. Insights are delivered to S&C coaches to adjust intensity, volume, or recovery timing. This service ensures that off-court physical development aligns with on-court resilience and readiness.
Recovery & Readiness Monitoring
We conduct continuous assessment of recovery using long-duration HRV monitoring protocols with the Bodyguard 3. Over 72-hour windows, we capture autonomic signals during sleep, rest, and daily routines. Kubios HRV is used to analyze RMSSD, PNS/SNS balance, and nonlinear variability, creating high-resolution snapshots of stress-recovery balance. These data feed into daily and weekly readiness reports that support tapering decisions, travel planning, and early identification of overreaching. It is a critical component for maintaining stability across long and variable competitive schedules.
Performance Reset Protocol
This structured 4–6 week off-season protocol is designed to clear accumulated fatigue, restore autonomic stability, and rebuild aerobic capacity after intense tournament blocks. Athletes complete baseline HRV assessments followed by daily monitoring of recovery dynamics. Training during this phase focuses on low-intensity aerobic work, mobility, and recovery integration. Kubios analytics are used to track HRV stabilization and threshold shifts. This protocol lays the physiological foundation for the season ahead and is essential for reducing injury risk and improving adaptation capacity.
Precision Taper Protocol
Our tapering protocol delivers individualized taper plans based on daily HRV status and menstrual cycle phase. Conducted over 7–10 days leading into major competition, we adjust training load and recovery scheduling using data from Firstbeat sensors and Kubios HRV. CycleShadow overlays hormonal context to refine tapering decisions during vulnerable or high-potential windows. Reports are delivered to coaches throughout the taper to guide fine-tuning. This service ensures physiological readiness is reached at the exact moment it matters most, without excess fatigue or volatility.
Cycle-Based Readiness Tracking
This service integrates menstrual cycle phase data with HRV trend modeling to guide training decisions and taper strategy in a biologically specific context. Using FitrWoman and CycleShadow, we account for hormonal fluctuations across the follicular and luteal phases, adjusting recovery and workload expectations accordingly. The system recalibrates HRV baselines based on phase-specific physiology, providing individualized recommendations throughout the cycle. It helps maximize performance windows, reduce injury risk, and ensure that each training intervention is biologically aligned.