One-Rep Max Calculator: The Key to Personalized Strength Training
Our one-rep max calculator helps you accurately estimate your max lift and tailor your workouts for maximum results.
Flex Editorial Team•
General Fitness
Lower back exercises: 10 workouts to relieve pain and build strength
Lower back pain can be a real obstacle in your day-to-day life, but with the right exercises, relief and strength are within reach.
Flex Editorial Team•
Best Deadlift Warm-Up: How to Increase Deadlift Weight Safely
Warming up properly for a deadlift not only helps you feel better while lifting, but it’s also a great way to prevent serious injuries.
Reina Cowan•
Why Does My Chest Crack When I Stretch? Causes, Concerns, and Solutions
Why does your chest crack when you stretch? Here are the reasons and solutions. You should know it's a common problem that is easily resolved.
Flex Editorial Team•
Do Grip Strengtheners Work? Types and Benefits
Struggling to hold your weight in a pull-up? Fearful of dropping your barbell as you deadlift? Maybe you can feel your weights (and PRs) slipping through your fingers, quite literally.
Flex Editorial Team•
Armpit Stretch Marks: Causes, Risk Factors & Prevention
When building up your pecs and biceps in the gym, you’ve started to notice thin red lines cropping up around your armpit creases and chest area.
Reina Cowan•
Bad Tricep Genetics? Tips to Build Strong & Defined Arms
If your triceps are leaving much to be desired, have you ever looked at the possibility of whether it’s not workout-dependent at all?
Reina Cowan•
Why Do My Knees Sound Like Rice Crispies? Popping & Crepitus
Snap, crackle, pop! No, it’s not your favorite breakfast cereal. It’s your knees.
Reina Cowan•
Why Do I Have Bicep Stretch Marks?
Stretch marks, also called “striae,” are a normal part of body changes, especially with muscle growth or weight fluctuations.
Flex Editorial Team•