Strengthening exercises can make the muscles tight, so follow strength exercises with stretching exercises. Stretching the muscles that support the knee with knee exercises is also important in preventing injury. Flexible muscles are not as easily injured as tight muscles. Tightness of muscles connected to the knee can also pull the knee out of alignment. When doing stretching exercises, be careful to go slowly and not to overstretch. You do not want to tear a muscle. Increase the duration of your knee exercises gradually to avoid overuse injuries and knee pain. Be patient.
1 Professional sod installation typically costs $500 to $1,000 for a 2,000 sq. ft. or smaller lawn. 2  Per square foot installation costs average $.50 to $1.00. 3  Installing sod on smaller lawns tends to cost more per square foot.
1 Expect to pay $400-$600 for 1,000 square feet of sod. 2  Installation typically doubles prices, making 1,000 square feet of sod to cost $800-$1,200. 3  A typical sized 5,000 square foot lawn costs $3,000-$5,000 including the sod with installation.actors affecting the following prices include the part of the country you reside (costs below are based on national averages), the type of sod selected and the amount of preparation your current soil needs. 1  Expect to pay $400-$600 for 1,000 square feet of sod.