Indoor turbo training sessions are typically characterised by hard, intense intervals interspersed with short duration rest periods. The nature of such sessions places a high demand on the need for adequate carbohydrate availability and result in a rapid rise in the production of lactate and subsequent increase in the acidity within the muscle itself (1). Furthermore, exercise capacity and performance are often reduced when exercising in hot conditions due to both elevated physiological strain and feelings of thermal discomfort (2-4). In fact, one of the main contributors to the early onset of fatigue in hot environments is enhanced feelings of discomfort and a perception of being hot and uncomfortable (2).
WHAT DOES THE RESEARCH SAY?
Menthol acts to target thermoreceptors within the mouth to evoke pleasant and refreshing sensations and subsequently improves the ability to tolerate hot environments by reducing thermal perception (5,6) whilst also making it easier to breathe (7). Through these mechanisms, menthol consumption during exercise results in reduced perception of effort and improvements in both time trial and time to exhaustion exercise performance (5-10).
Exercise in the heat also increases the reliance on carbohydrate as a fuel (11) and, as such, the combination of menthol and carbohydrate within TURBO+ POWDER provide both a cooling and energy benefit. TURBO+ POWDER is also designed to be used as a mouth rinse and drink strategy as carbohydrate has the ability to stimulate receptors within the mouth (12) which have a stimulatory effect on the central nervous system (CNS) and ultimately enhance exercise performance (12-14).
Furthermore, given that indoor turbo sessions are synonymous with high-intensity intervals, TURBO+ GEL is formulated with a blend of caffeine, beta-alanine and L-carnitine so as to enhance performance. Caffeine enhances performance through its stimulatory effects on the central nervous system (CNS), whereas beta-alanine and L-carnitine facilitate improved muscle buffering, given the rapid rise in lactate accumulation and subsequent increase in muscle acidity associated with high-intensity efforts (1). Collectively, all three ingredients have the ability to enhance exercise performance (15-17).
OUR BRAND-NEW RANGE
The SiS TURBO+ range has been formulated to collectively meet the in-session fuelling and hydration requirements of high-intensity efforts whilst helping to combat the increased thermal stress that occurs with performing such sessions indoors. Furthermore, the pre-session TURBO+ GEL delivers key ingredients to maximise focus and performance as well as buffering against fatigue.
Pre-session Turbo+ Gel: 22g Carbohydrate, 150mg Caffeine
In Session Turbo+ Powder: 60g Carbohydrate, Isotonic & pH Neutral, Menthol flavouring
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- 2. Schlader ZJ, Simmons SE, Stannard SR, Mundel T (2011). The independent roles of temperature and thermal perception in the control of human thermoregulatory behaviour. Physiol Behav 103: 217-224.
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- 5. Flood TR, Waldron M, Jeffries O (2017). Oral L-menthol reduces thermal sensation, increases work-rate and extends time to exhaustion, in the heat at a fixed rating of perceived exertion. Eur J Appl Physiol 117: 1501-1512.
- 6. Stevens CJ, Thoseby B, Sculley DV, Callister R, Taylor L, Dascombe BJ (2016). Running performance and thermal sensation in the heat are improved with menthol mouth rinse but notice slurry ingestion. Scand J Med Sci Sports 26: 1209-1216.e
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- 8. Stevens CJ, Bennett, KJM, Sculley DV, Callister R, Taylor L, Dascombe BJ (2017). A comparison of mixed-method cooling interventions on preloaded running performance in the heat. J Strength Cond Res 31: 620-629.
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- 10. Riera F, Trong TT, Sinnaph S, Hue O (2014). Physical and perceptual cooling with beverages to increase cycle performance in a tropical climate. PLoS One 9: e103713.
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