Sarcoplasmic vs. Myofibrillar Hypertrophy: The Science of Growth
Is the 'pump' just fluid, or is it real muscle? Understanding the two types of hypertrophy can change how you train.
Leave your phone in the locker. Log your entire workout from your wrist.
The best device is the one you have with you. With RepLog for Apple Watch, you get a fully featured standalone logger that syncs seamlessly when you are back in range.
Full database access and logging capabilities right on your wrist.
Get a silent tap on your wrist when your rest period is over.
Workouts contribute directly to closing your Activity Rings.
Your Apple Watch knows your Heart Rate. Your phone knows your Weight. RepLog connects them. **Rest Awareness:** Our "Heart Rate Recovery" feature uses the Watch to monitor how fast your heart rate drops after a heavy set. When it hits a target zone (e.g., 110bpm), the Watch taps you to say "You are recovered, start the next set." This is personalized biological rest periods.
No, we use a highly optimized darker UI to save OLED energy.
No, it is fully standalone. Sync happens when they reconnect.
"Training should be liberating. leave the phone behind and focus on the movement."
Put this knowledge into action with RepLog. The smartest workout log for serious lifters.
Download RepLog FreeIs the 'pump' just fluid, or is it real muscle? Understanding the two types of hypertrophy can change how you train.
Enhance your squat mechanics by understanding the underlying physics, joint angles, and force vectors that dictate optimal performance.
Deep sleep is the ultimate anabolic steroid. In 2026, we've moved past simple tracking to active circadian optimization for maximum muscle growth.
Join thousands of lifters tracking their progress with RepLog. Download today and start your journey.
Get Started for Free