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Visa fullständig version : Effekt av höghöjdsmask på prestation i knäböj, bänkpress och sprint


King Grub
2017-10-31, 10:14
The Elevation Training Mask 2.0 (ETM) is a novel device that purportedly simulates altitude training. The purpose of this study was to investigate the acute effects of the ETM on resistance exercise performance, metabolic stress markers, and ratings of mental fatigue. Twenty male recreational weightlifters completed two training sessions of back squat and bench press (6 sets of 10 repetitions at 85% of 5RM, 7 set to failure) as well as a maximal effort sprint test (18% body mass) with the mask (ETM) and without the mask (NM). Training evaluation included baseline and post exercise blood lactate and oxygen saturation measures. Performance evaluation included peak and average velocity bar velocity, total volume load, total work, total repetitions completed and sprint performance. Adverse side-effects were reported in 12% (n=3) of participants; which included feelings of light-headedness, anxiety and discomfort. No differences were found in repetitions or total workload in back squat (p=0.07) or bench press (p=0.08) between conditions. A lower peak velocity was identified during the back squat, bench press, and sprint test the ETM condition (p=0.04). Blood lactate values were lower post bench press and sprint during the ETM condition (p<0.001). Significantly lower ratings of alertness and focus for task were found post squat, bench press, and sprint test in the ETM condition compared to the NM condition (p<0.001). Wearing the ETM during bouts of resistance training did not hinder the ability to achieve desired training volumes during the resistance training session. However, wearing the ETM does appear to attenuate the ability to maintain working velocity during training bouts and negatively influence ratings of alertness and focus for task.

J Strength Cond Res. 2017 Oct 27. The Acute Effects of the Elevation Training Mask on Strength Performance in Recreational Weightlifters.