A non-invasive ergogenic aid as an enhancement of maximal lifting ability in experienced weight trainers
The purpose of this study was to determine whether the Non-invasive Ergogenic Aid Blast Shirt (NEABS) can provide consumers with a legitimate product maximizing the subject's lifting ability during the bench press exercise. The study used thirty-one (31) experienced male weightlifters. The subjects were initially divided into two groups. Group I ( n = 15) had experience in wearing the NEABS. Group II (n = 16) had no experience in wearing the NEABS. No significant differences were observed between groups for age, height, weight, heart rate, or blood pressure. Peak torque (PT) as measured by the Biodex and the one repetition maximum (1RM) were the dependent variables. After receiving permission from the University Human Subjects Protection Review Committee, each subject was asked to execute two maximum strength trials while wearing or not wearing the NEABS. Trial I ( n = 30) measured each subject's one repetition maximum lift (1RM) on the bench press exercise. Trial II (n = 21) recorded each subject's peak torque output measured by the Biodex on the bench press exercise. The best lift was used for statistical comparison for each subject. A mixed design ANOVA was used to determine significance for the experienced and inexperienced wearer's groups, the NEABS, and the interaction between groups and the NEABS. For the one repetition maximum lift, no differences were noted between the experienced and inexperienced wearers; F (1, 28) = 2.93, p = .098; however, there was a significant difference between with/without the NEABS; F (1, 28) = 133.99, p < .001, with the NEABS producing a significant difference in the amount of weight lifted. Interaction did not occur because both groups benefited from wearing of the NEABS; F (1, 28) = .045, p = .833. Thus wearing the NEABS had a more significant effect than not wearing the NEABS for both of the wearer's groups on the one repetition maximum lifts. For the Biodex similar results were reported. No significant difference was found between experienced/inexperienced wearers; F (1, 19) = 2.92, p = .104. When the NEABS with was compared to NEABS without, the difference in the weight lifted was significant; F (1, 19) = 48.13, p < .001. Again, no significant interaction was noted; F (1, 19) = .383, p = .543. As before, the lift while wearing the NEABS was greater than the lift without the NEABS on the Biodex. Therefore, within the parameters of this study there was no significant difference between the experienced and inexperienced wearer's groups or any interaction between the groups. In summary, significant differences were found between the wearer's and the nonwearer's of the NEABS on both measures, with a significant advantage being given to the wearer's groups when donning the NEABS.