Wiktionary (0.00 / 0 votes) Rate this definition: fartlek (Noun) An athletic training technique, used especially in running, in which periods of intense effort alternate with periods of less strenuous effort in a continuous workout.
Knee injury facts. The knee is one of the most common body parts to be injured. Types of knee injuries include sprains, strains, bursitis, dislocations, fractures, meniscus tears, and overuse injuries.
1 Foot swelling and Knee pain and Abdominal symptoms (2 causes) 2  Foot swelling and Knee pain and Arm symptoms (2 causes) 3  Foot swelling and Knee pain and Arthritis-like symptoms (2 causes) 4  Foot swelling and Knee pain and Body symptoms (2 causes)  Foot swelling and Knee pain and Bone symptoms (2 causes)