THE BIGGEST HOLIDAY shopping extravaganza is finally upon us and stores and brands are releasing their best Black Friday deals. One of the best categories that has some of the biggest markdowns of the ...

Correspondence to Argyro Kotsifaki, Rehabilitation Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Ad Dawhah, Qatar; argyro.kotsifaki{at}aspetar.com Objectives Vertical jump ...