Smart Rest Recommendations
AI-powered rest periods optimised for your goals — never guess how long to rest again
How long should you rest between sets? It depends on the exercise, your rep range, and your goal. PT Tracker's smart rest recommendations adapt to each set, telling you exactly how long to rest for maximum results — whether you're chasing strength, hypertrophy, or endurance.
- Rest times that adapt to each exercise and rep range
- Goal-based timing — strength, hypertrophy, or endurance
- Overlay timer so you can browse your phone while resting
- Backed by sports science research
- Adjusts if you're supersetting or circuit training
- Vibration and sound alerts when rest is over
Why Rest Periods Matter
Rest periods directly impact your results. Too short and you can't lift heavy enough for strength gains. Too long and you lose the metabolic stress that drives muscle growth. Research shows that optimal rest varies dramatically based on your training goal — from 30 seconds for muscular endurance to 5 minutes for maximal strength.
- Strength training: 3-5 minutes for full ATP recovery
- Hypertrophy: 60-90 seconds for metabolic stress
- Endurance: 30-60 seconds for conditioning
- Compound lifts need longer rest than isolation exercises
How Smart Rest Works
After each set, PT Tracker analyses the exercise type, your rep range, and your stated goal to recommend the optimal rest period. Heavy squats at 5 reps? You'll get 3-4 minutes. Bicep curls at 12 reps? 60-90 seconds. The timer starts automatically and alerts you when it's time to go — a non-intrusive overlay that lets you use your phone normally while resting.
- Automatic rest timer after each logged set
- Adapts to exercise type and rep range
- Non-intrusive overlay — browse your phone while resting
- Sound and haptic alerts when rest is complete
The Science of Rest
PT Tracker's recommendations are based on peer-reviewed research from the Journal of Strength and Conditioning Research and the National Strength and Conditioning Association. The system accounts for exercise complexity (compound vs isolation), muscle group size, training intensity, and your individual recovery patterns over time.
- Based on NSCA and JSCR research
- Accounts for compound vs isolation exercises
- Considers muscle group size and fatigue
- Learns your recovery patterns over time
Try Smart Rest Recommendations today
Start your free trial of PT Tracker Pro to unlock Smart Rest Recommendations and all other premium features.
More Features
Workout Tracking
Log every set, rep, and PR — built for the gym floor
Training Programmes
Structured plans from coaches and creators — or build your own
Nutrition Tracking
Hit your macros every day — with features other apps charge for
CrossFit & WODs
Every timer format built in, plus daily programming
Gym Finder
Discover gyms near you, read reviews, and book sessions
Intermittent Fasting
Track your fasting windows with built-in protocols and streaks
Ready to transform your training?
Join thousands of people tracking their fitness journey with PT Tracker. Start for free, upgrade when you're ready.