Musculoskeletal accidents are multifactorial; some authors have proposed underling hypotheses . During repetitive motion some motor models within the muscular tissues are recruited constantly, they’re referred to as the Cinderella fibers, rising risks of accidents by a sustained contraction for a long time period . Other mechanisms like neural pathomechanisms, reperfusion injures, impaired heat shock responses and mitochondrial damages was additionally proposed to explain musculoskeletal injuries in repetitive workload . Rest and changing the activity may help to reduce the dangers, ergonomic papers propose to plan enough relaxation to keep away from accidents . It is for this reason; rest time and recovery have to be deliberate for this kind of exercise. Even if it can be tough to use occupational health guidelines for rest, out of doors actions should plan frequently rest time and altering motion if potential to be able to avoid musculoskeletal injuries.