Purchase Solution

Differences in Muscle Contribution in Leg Positions

Not what you're looking for?

Ask Custom Question

E. Perform a sit-up under the following conditions:
1. Legs fully extended
2. Legs flexed at the knee and hip

Identify the differences in muscle contribution in these two different leg positions.

Purchase this Solution

Solution Summary

The differences in muscle contribution in leg positions are discussed. A sit-up under different conditions are analyzed.

Solution Preview

The person comes into a deeper posture by pulling forward, not with the hands, but internally, using contraction of the hip flexors deep in the pelvis, contraction of the rectus femoris muscles on the front of the thighs, and contraction of the abdominal muscles. These muscles work best when they pull in a straight line. The lower section of the Internal obliques (abdomen) can have a girdle type effect on the lower midsection when worked properly with the rectus abdominus, through a full range of ...

Purchase this Solution

Free BrainMass Quizzes
Managed Care Organizations

This quiz will test the basics of managed care organizations. It is important to know how our health care delivery system operates through managed care.


This quiz provides a brief overview of Fibromyalgia. Research is currently evolving regarding this diagnosis.

CPR (Red Cross Standards)

Are you up to date on your CPR skills? Find out if you know what to do in an emergency with this quiz.

Test your health planning and program evaluation knowledge

Health planning and program evaluation is an important aspect of the Health Sciences' field. Organizations and communities must understand the needs of their audiences, and a way to obtain this datum is through proper design and assessment. This quiz will test your ability to understand the importance of planning and evaluation in the health sector.

Tumor Markers

This quiz help you memorize common tumor markers used to detect and diagnose some types of cancer.