Rhombus plural: rhombi. Definition: A quadrilateral with all four sides equal in length. Try this Drag the orange dots on each vertex to reshape the rhombus. Notice how the four sides remain the same length and the opposite sides remain parallel. A rhombus is actually just a special type of parallelogram. Recall that in a parallelogram each pair of opposite sides are equal in length. With a rhombus, all four sides are the same length.It therefore has all the properties of a parallelogram. See Definition of a parallelogram. Its a bit like a square that can 'lean over' and the interior angles need not be 90Â°. Sometimes called a 'diamond' or 'lozenge' shape.
Flexibility Exercise. Adults can improve joint range of motion by engaging in flexibility exercises two to three days a week. Each stretch should be held for 10 to 30 seconds and repeated two to four times. Proprioceptive neuromuscular facilitation, or PNF, and static stretching provide the greatest flexibility gains.dults need at least 150 minutes of cardiovascular exercise each week. According to the guidelines, moderate or intense levels of exercise can be used to meet the cardiovascular recommendations.
What's better for strength training â one set or multiple sets? Answers from Edward R. Laskowski, M.D. For most people, a single set of 12 repetitions with the proper weight can build strength and improve fitness as effectively as can multiple sets of the same exercise. The one-set approach also has the advantage of saving time, which makes it easier to fit into an exercise routine.