Caffeine in typical amounts is well tolerated and not associated with significant side effects or long term adverse outcomes. Caffeine has been shown to have psychoactive properties and to increase alertness and wakefulness and improve physical and athletic performance, although to a minor degree and with considerable inter-individual variability. The average caffeine content in selected energy drinks and soft drinks is shown in the table below. Caffeine is also present in regular soft drinks but generally in amounts similar to tea (2 to 5 mg/oz and 24 to 60 mg per 12 oz can), although soft drink brands with extra caffeine have also become popular (Pepsi Max, Jolt Cola, Mountain Dew Energy). The caffeine content of these products varies from 5 to 40 mg per ounce, and a single serving (8 to 24 ounces 235-710 mL) may contain up to 300 mg of caffeine. Popular brands include Red Bull, Monster, Rockstar, NOS Energy, Xyience, Bang, Celsius, Zevia, Full Throttle and Kick Start. The commercial products vary greatly in concentration of caffeine as well as in other characteristics, such as carbonation, flavoring, sugar and sweeteners, vitamins, minerals, amino acids and botanical ingredients. Energy drinks were first marketed in the late 1990s and have subsequently become popular and widely available. (each arm).Energy drinks are defined as beverages with high concentrations of caffeine that are purported to boost energy, physical and athletic performance and mental alertness. Drive left elbow straight back while rotating free arm up toward anchor, pulling body up do 30 sec. Rotate free arm in a circle toward floor while straightening left arm, keep hips square.
Use right hand to reach up to TRX anchor, pressing shoulders down. TRX Power Pull Hold both handles with left hand.SEE ALSO: 15-Minute TRX Flab Fighter Workout Round 2 TRX Crossing Balance Lunge Hold handles at chest height, elbows bent perform a curtsy squat with right foot behind your left, keeping the right foot off the floor do 30 sec.Move straight into Round 2 with the same intervals. or less between each exercise, then repeat Round 1 again. Workout by: Jules Benson, TRX Master Instructor
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