Effects of ingesting JavaFit Energy Extreme functional coffee on aerobic and anaerobic fitness markers in recreationally-active coffee consumers

Abstract

The purpose of this study was to examine the effects of ingesting JavaFit™ Energy Extreme (JEE) on aerobic and anaerobic performance measures in recreationally-active male and female coffee drinkers. Five male (27.6 ± 4.2 yrs, 93.2 ± 11.7 kg, 181.6 ± 6.9 cm) and five female (29 ± 4.6 yrs, 61.5 ± 9.2 kg, 167.6 ± 6.9 cm) regular coffee drinkers (i.e., 223.9 ± 62.7 mg·d -1 of caffeine) participated in this study. In a cross-over, randomized design, participants performed a baseline (BASELINE) graded treadmill test (GXT) for peak VO 2 assessment and a Wingate test for peak power. Approximately 3-4 d following BASELINE testing, participants returned to the lab for the first trial and ingested 354 ml of either JEE or decaffeinated coffee (DECAF), after which they performed a GXT and Wingate test. Criterion measures during the GXT included an assessment of peakVO 2 at maximal exercise, as well as VO 2 at 3 minutes and 10 minutes post-exercise. Additionally, time-to-exhaustion (TTE), maximal RPE, mean heart rate (HR), mean systolic pressure (SBP), and mean diastolic blood pressure (DBP) were measured during each condition. Criterion measures for the Wingate included mean HR, SBP, DBP, peak power, and time to peak power (TTP). Participants then returned to the lab approximately one week later to perform the second trial under the same conditions as the first, except consuming the remaining coffee. Data were analyzed using a one way ANOVA (p < 0.05). Our results indicate that JEE significantly increased VO 2 at 3 minutes post-exercise when compared to BASELINE (p = 0.04) and DECAF (p = 0.02) values, which may be beneficial in enhancing post-exercise fat metabolism.

Effects of Morning Caffeine’ Ingestion on Mood States, Simple Reaction Time, and Short-Term Maximal Performance on Elite Judoists

“…However, other studies revealed that caffeine ingestion lead to a significant increase in short-term performance [ 12 , 13 ] . In this context, studies examining the effects of caffeine on Wingate performance have typically shown minimal ergogenic effects [ 14 , 15 ] .…”

Caffeine and Energy Drinks

“…However, changes in the blood pressure response have been inconclusive. Several studies have reported significant elevations in systolic blood pressure (30,49), while others have shown no change (2,10,32,45). Differences between the studies are not clear, but they are likely related to differences within the combination of ingredients that are generally associated with these energy drinks.…”

Efeito da ingestão de cafeína no desempenho em corrida de 200 metros rasos

“…Neste segmento, tem sido sugerido que a ingestão de cafeína aumenta a mobilização de ácidos graxos livres causando uma economia de glicogênio muscular (GRAHAM, 2001), além da sua atuação no sistema nervoso central (KALMAR e CAFARELLI, 2004). No entanto, em relação a exercícios com predominância do metabolismo anaeróbio o efeito da ingestão de cafeína ainda apresenta resultados contraditórios (COLLOMP et al, 1992; KANG et al, 1998;ROBERTS et al, 2007). Para nosso conhecimento, não foram encontradas na literatura pesquisas que avaliaram os efeitos do consumo de cafeína no desempenho dos 200m rasos.…”