A compound leg and core exercise, the stability ball jackknife targets your iliopsoas (hip flexors). Your abs contract dynamically only with waist flexion.
An isolation exercise, use the cable straight-arm pull-down to work your latissimus dorsi, pectoralis major, posterior deltoid, and other muscles.
The behind-the-back barbell wrist curl is an isolation exercise that targets your wrist flexors. There are no synergistic muscles.
The cable wide grip upright row targets your lateral deltoid. If performed in a certain way, it can lead to shoulder impingement in some people.
Target your glutes with the barbell straight back stiff leg deadlift, an isolation exercise that synergistically works your hamstrings and adductor magnus.
An advanced core exercise, use the standing ab wheel rollout only after you have mastered the walkout, front plank, and wheel rollout on your knees.
A compound exercise, the kettlebell swing is great for cardio circuits, developing functional strength, and strengthening your posterior chain muscles.
The bent-over one-arm cable pull is great for developing unilateral upper-body strength and warming up your latissimus dorsi at the start of a back workout.
Target your brachioradialis with the dumbbell reverse preacher curl! The other elbow flexors, your biceps brachii and brachialis, assist as synergists.
The decline bent-arm barbell pullover is one of few exercises that targets both your lats and your lower pecs, which are usually trained separately.
An auxiliary upper-arm isolation exercise, the prone incline barbell curl (aka barbell spider curl) targets your brachialis, not your biceps brachii.
Invented by 6-time Mr. Olympia Dorian Yates, the underhand Yates row is a modified barbell row with an upright posture and shorter range of motion.