One of the most frequent complaints is elbow pain when using a rowing machine or just rowing to the lake, lake or sea. The rowing machine seems like a benign workout, but it might lead to knee. Along with heavy bench press, heavy bicep curl is the reason why most men (and a few gals) develop tennis elbow. Naturally, this leads you on a journey towards knee. While shoulder extensions is a fantastic exercise for some people, it causes knee distress for many. Any exercise that's dubbed "skull crushers" should force you to think before performing them. Doing this puts your elbow in awkward places. To observe the kind of nystagmus in each place of anterior semicircular canal benign paroxysmal positional vertigo (BPPV) after treatment using the Epley maneuver and analyze the association between the type of nystagmus in the second and third sections of the Epley maneuver and the effect of therapy.