
Exercise 101: Sit-UpsName of Exercise—Bent knee sit-up Type of Exercise—Multi-joint Muscles Used—Abdominals Starting Position© 2009 Nucleus Medical Media, Inc.
Upward Movement
Downward Movement
Trainer TipIt is important to perform a posterior pelvic tilt prior to performing the crunch. To do this, press your lower back into the floor while curling your pelvis slightly upward. This will engage your abdominal muscles from the start and make the movement more efficient. Place your hands across your chest or down at your sides rather than behind your head. Resources:American College of Sports Medicine President's Council on Fitness, Sports & Nutrition Canadian Resources:Health Canada Physical Activity REFERENCES:Bent-Knee Sit-up/Crunches. American Council on Exercise website. Available at: http://www.acefitn.... Accessed December 4, 2012. Last reviewed December 2012 by Brian P. Randall, MD |