SPIKESCIENCE
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Development Analytics
Sarah ChenOH#7
Sessions
15
Jan–Apr 2026
Avg PRISM
70.1
All sessions
Best PRISM
78.6
Apr 14, 2026
Trend (3 sessions)
+3.7
vs 3 sessions ago
Risk Level
Low
Current: 24/100

Jump count jumped +38% above your 4-week average in the W9 session. High acute-to-chronic ratios like this (1.20 A:C) correlate with a 2.7x increase in soft tissue injury risk.

Consider reducing jump volume by 15–20% this week and focus on approach technique at lower output.

Generated from 15 sessions · Updated Apr 7

Jan 6Jan 13Jan 20Jan 27Feb 3Feb 10Feb 17Feb 24Mar 3Mar 10Mar 17Mar 24Mar 31Apr 7Apr 1440557085100
Power
78
+20pts
+34.5% since Jan
Intelligence
81
+16pts
+24.6% since Jan
Reactivity
79
+17pts
+27.4% since Jan
Symmetry
82
+12pts
+17.1% since Jan
Mobility
72
+17pts
+30.9% since Jan
Consistency
78
+18pts
+30.0% since Jan
Resilience
80
+17pts
+27.0% since Jan
AI Insight
Sarah's composite PRISM score has improved +16.7 pts (27%) across the Jan–Apr period. Power and Resilience show the strongest absolute gains (+20 and +17 pts respectively), while Mobility remains the lowest dimension at 72 — indicating targeted flexibility and hip mobility work could unlock the next tier of performance. The upward trajectory has been consistent with no regression periods longer than one session.
Recent (high opacity) Older sessions (low opacity) Optimal zone Overtraining zone
120150180210240Load Index5563717985PRISM
Optimal Zone
145 – 185
Load index range for peak performance
Last Session Load
163
PRISM: 78.6 at this load
Recommendation
Maintain load 155–175 range over next 2 sessions to consolidate recent gains
Jan 6Jan 13Jan 20Jan 27Feb 3Feb 10Feb 17Feb 24Mar 3Mar 10Mar 17Mar 24Mar 31Apr 7Apr 1430.26439.26448.26457.26464.272PRAvg
All-Time Best
62.4%
All-Time Worst
31.2%
Current
57.8%
4-Month Trend
+4.1%
Percentile
78th
Rate of Improvement
Average per session across tracking period
+1.005 %/session
Low (0–20)Moderate (20–40)Elevated (40–60)High (60–80)Critical (80+)
Jan 6Jan 13Jan 20Jan 27Feb 3Feb 10Feb 17Feb 24Mar 3Mar 10Mar 17Mar 24Mar 31Apr 7Apr 14015304560
Active Risk Flags
Ankle Load Asymmetry
14% R>L
Since Mar 3
Shoulder Overuse Index
1.08 A:C ratio
Since Apr 7
Jump Volume Spike
+38% above baseline
Since Mar 9
Current Risk: Moderate (24/100)
At current trajectory with maintained load levels, injury risk is projected to remain in the moderate zone through mid-May. The patellar tendinopathy risk index (22%) is the highest position-specific concern for OH athletes. Recommend incorporating 2× weekly eccentric loading protocol and reducing jump volume by 8% over the next training block.
OH Position Injury Probability
Ankle Sprain
18%
Patellar Tendinopathy
22%
Rotator Cuff Strain
14%
Lower Back Strain
11%
Finger/Hand Injury
8%
Frequency by Deviation Type
036912Hip drop onapproachLate arm swing initiationAsymmetricshoulder rota…Reduced knee bend at peakElbow belowshoulder at …Excessive trunk lean leftInconsistent jumptiming
Resolution Status
Resolved3
Improving2
Active2
Deviation Persistence Log
Deviation
Count
Status
Period
Hip drop on approach
12x
active
Jan 6 → Apr 14
Late arm swing initiation
9x
improving
Jan 13 → Mar 31
Asymmetric shoulder rotation
7x
active
Feb 3 → Apr 14
Reduced knee bend at peak
5x
improving
Jan 20 → Mar 10
Elbow below shoulder at contact
4x
resolved
Jan 6 → Feb 17
Excessive trunk lean left
3x
resolved
Jan 13 → Feb 3
Inconsistent jump timing
2x
resolved
Jan 20 → Jan 27
Deviation Timeline
Hip drop on approach…
Late arm swing initi…
Asymmetric shoulder …
Reduced knee bend at…
Elbow below shoulder…
JanFebMarApr
Weekly Jump Volume (reps)
W1W2W3W4W5W6W7W8W9W10W11W12W13W14W15W160150300450600
A:C Ratio — Acute/Chronic Load
W1W2W3W4W5W6W7W8W9W10W11W12W13W14W15W160.70.951.21.451.7
Current A:C Ratio
1.01
Optimal Zone
Zone Guide
< 0.8Undertraining
0.8 – 1.3Optimal
1.3 – 1.5Caution
> 1.5High Risk
Recovery Assessment
Sleep Quality7.4
Soreness2.8
Motivation8.1
HRV Trend6.9
Pre-SeasonEarly CompetitionMid SeasonPeak/PlayoffsJan 6Jan 27Feb 17Mar 10Mar 31607080PRISM ScoreLoad VolumeInjury Risk
Sessions Tracked
15
Jan–Apr 2026
PRISM Growth
+16.7
+27% improvement
Peak PRISM
78.6
Achieved Apr 14
High Risk Days
2
Risk > 40 threshold
Detected Season Phases
Pre-SeasonSessions 1–4
Early CompetitionSessions 4–8
Mid SeasonSessions 8–12
Peak/PlayoffsSessions 12–15
Phase detection based on load patterns, PRISM trajectory changes, and session density. Currently in Peak/Playoffs phase — performance is at season high with controlled load management.
Jan 6Jan 13Jan 20Jan 27Feb 3Feb 10Feb 17Feb 24Mar 3Mar 10Mar 17Mar 24Mar 31Apr 7Apr 14Apr 21Apr 28May 5May 12May 19May 265565758595Today
Actual DataOptimisticExpectedConservative
Development Velocity Ranking
#1
Power
+1.429/s
#2
Consistency
+1.286/s
#3
Reactivity
+1.214/s
#4
Mobility
+1.214/s
#5
Resilience
+1.214/s
#6
Intelligence
+1.143/s
#7
Symmetry
+0.857/s
Position Readiness (OH)
74/ 100
Attacking Mechanics
76
Defensive Footwork
71
Serve Reception
68
Jump & Power
78
Mental Resilience
80
Goal Setting Module
88
Gap to goal+9.4 pts
Sessions needed~23
Required rate0.41 pts/session
89% to goal