Scientific Studies

Deadlifts are more efficient in the neutral grip

Deadlifts performed with a "t-bar" (a bar typ that lets you train in the neutral grip) resulted in more strength and explosiveness compared to conventional deadlifts with a straight bar. Deadlifts in the neutral grip can also be done by using Angles90.

Study: https://www.ncbi.nlm.nih.gov/pubmed/21659894 ; https://www.ncbi.nlm.nih.gov/pubmed/26840440

 

Train compound movements more effectively increasing size

If you train a certain exercise only, your performance will only increase for that specific exercise. This means you won't get better at other movements which require that same muscle. So if you are only exercising pull-ups in the overhand grip, it's likely you won't see that result at other grip angles. With Angles90, you can add dynamic, whole-movement exercises to your workout.

Study: https://www.strengthandconditioningresearch.com/perspectives/partial-squats/

 

Pull-ups are best with rotating grip

In comparison to overhand grip pull-ups or underhand grip pull-ups (also chin-ups), the researchers revealed that by using a rotating grip instead, your lats get activated more intensively. In addition, you tend to have more strength than in the other two grip methods.

Study: http://journals.lww.com/nsca-scj/Abstract/2013/02000/The_Effect_of_Grip_Width_and_Hand_Orientation_on.12.aspx  

 

Prevent or limit the chances of shoulder injuries 

More than 10 studies have found that resistance training can lead to a wide range of shoulder injuries. Approximately a third of all gym goers currently struggle or used to struggle with this issue. The causes can be many. Focusing on the wrong grip positions is one of them.

Study: http://journals.lww.com/nsca-scj/Citation/2017/06000/Exercise_Modification_Strategies_to_Prevent_and.9.aspx

 

Isometric training increasing muscle stimuli

Isometric resistance training (which can also be performed with the A90 Carabiner) challenges your muscles with other stimuli than isonotic training/ conventional hypotrophy training does, because it keeps your muscles under permanent tension.

Study: http://www.physiology.org/doi/10.1152/jappl.1984.56.2.296