Bicycle crunch: Twisting at high speeds is a recipe for herniated discs and muscle spasms. SHUTTERSTOCK
Lat pull-down (behind the head): If something in your shoulder doesn't feel right, stop and find another exercise. SHUTTERSTOCK
Kettlebell swing: If performed incorrectly, the repetitive swinging motion could result in rotator cuff injury. SHUTTERSTOCK
Bent-over row: Hinging from the waist causes your shoulders to roll forward, which can contribute to poor posture. SHUTTERSTOCK
Romanian dead lift: Most commonly, a person will fall into hyperextension through the low back while lowering and lifting weight, which could result in lumbar disc injury or muscular spasm. SHUTTERSTOCK
Overhead squat: The actual overhead motion adds strain to shoulder, cervical, thoracic and lumbar regions. SHUTTERSTOCK
Backward medicine ball rotation toss (against a wall): It's never a good idea to forcefully rotate your spine backward. SHUTTERSTOCK
Seated leg extension: It places undue stress across your knee joint, affecting the delicate cartilage under the patella. SHUTTERSTOCK
Pull-up: Done improperly, pull-ups can lead to shoulder issues. SHUTTERSTOCK
Preacher curl: There is no stabilization of your core or lats because your shoulder blades are out of place and you are in a forward posture. SHUTTERSTOCK