You can modify the difficulty by bending your knees (easier) or extending your legs (harder ... the squeeze in your triceps. Single-Arm Overhead Dumbbell Extension: 3 sets of 10-15 reps per ...

If you buy something via one of our links, we may earn a commission. The Syedee Leg Extension and Curl Machine is just $203 right now. This Walmart bestseller is usually $1,100, but it's currently ...

dynamic-static trunk extension, dynamic leg extension, dynamic-static leg extension) in randomized order at an intensity of 60% of 1-RM (one repetition maximum). Surface EMG signals of Latissimus ...

This occurs at the hip and shoulder, returning the arms and legs back to their original position from a jumping jack movement or when swimming breaststroke. Key fact Flexion and extension are a ...