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 Knee swelling and Stiffness and Movement symptoms (12 causes). 2  Knee swelling and Stiffness and Musculoskeletal symptoms (12 causes). 3  Knee swelling and Stiffness and Nerve symptoms (12 causes). 4  Knee swelling and Stiffness and Pain (12 causes). Knee swelling and Stiffness and Sensations (12 causes). 2  Knee swelling and Stiffness and Sensory symptoms (12 causes). 3  Knee swelling and Stiffness and Skeletal symptoms (12 causes). 4  Knee swelling and Stiffness and Swelling symptoms (12 causes).