Investigations have placed the blame for the accident on the inadequate and unstable structure of steel cofferdams at the construction site, severe defects in the project procedures and regulation violations during the project supervision process, according to sources with the work safety committee under the Chongqing Municipal government.
You can also use various types of barbell curls in routines where you split your training into push exercises and pull exercises. With this approach, muscles that push (i.e., the triceps) and muscles that pull (i.e., the biceps) are trained on different workout days.
These are going to place a slightly greater stress on the biceps muscles as opposed to straight rows, so they will be a better exercise for strictly targeting the biceps. Depending on what muscle group you think of contracting as you bring the weights up to the body (the biceps or the back), that too will impact the nature of the muscle stimulus. Exercise 5: Concentration Curl. Finally, the last of the exercises to consider to blast your biceps into growth are concentration curls.