Push Count
Definition
The number of wheelchair pushes detected, analogous to step count for walkers.
Why It Matters
Push count is the primary activity metric for wheelchair users: - Daily movement tracking - Equivalent to steps for walkers - Activity goals - Meaningful targets for wheelchair users - Training volume - For wheelchair athletes - Health correlation - Activity linked to similar health benefits
How It's Measured
Apple Watch detects wheelchair pushes using accelerometer and motion algorithms when wheelchair mode is enabled.
Accuracy factors: - Calibrated for typical manual wheelchair propulsion - Different push styles may affect accuracy - Continuous vs intermittent pushing patterns
Reference Ranges
No universal standards, but: - Similar dose-response relationship to steps expected - Individual goals based on baseline and capability - Athletic training has higher targets
Confounders & Limitations
- Push style - Variations in technique
- Power assist - Hybrid chairs may undercount effort
- Terrain - Uphill requires more effort per push
- Watch position - Must be on propelling arm
Use Cases
- Activity tracking - Daily movement for wheelchair users
- Goal setting - Personalized push targets
- Training monitoring - Wheelchair sports
- Trend analysis - Activity patterns over time