Effect of Taurine Combined With Creatine on Repeated Sprinting Ability After Exhaustive Exercise Under Hot and Humid Conditions.
Study Goal
The researchers aimed to determine whether combined taurine and creatine supplementation enhances physiological indicators and recovery of repetitive sprint performance after exhaustive exercise in hot and humid conditions compared to single supplementation or placebo.
Results Summary
Combined taurine and creatine significantly improved time to exhaustion compared to placebo, but no significant improvements were observed in repeated sprint performance. Creatine alone or combined with taurine led to decreased countermovement jump height after exhaustive exercise.
Population
12 sports students
Effective Dosage
Not specified
Duration
Not specified
Interactions
None mentioned
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
taurine + creatine (T+C) | increase | time to exhaustion (TTE) | 12 sports students | - | significantly enhanced | #1 |
taurine (T) | increase | blood lactate (BLa) | 12 sports students | - | peak values were higher than those of P group | #2 |
taurine (T) | increase | tympanic temperature | 12 sports students | - | peak values were higher than those of P group | #3 |
creatine (C) | decrease | countermovement jump (CMJ) height | 12 sports students | - | decreased | #4 |
taurine + creatine (T+C) | decrease | countermovement jump (CMJ) height | 12 sports students | - | decreased | #5 |
taurine (TAU) | no change | repeated sprint performance after exhaustive exercise | 12 sports students | no significant change | do not significantly improve | #6 |
creatine (Cr) | no change | repeated sprint performance after exhaustive exercise | 12 sports students | no significant change | do not significantly improve | #7 |
taurine + creatine (T+C) | no change | repeated sprint performance after exhaustive exercise | 12 sports students | no significant change | do not significantly improve | #8 |
BACKGROUND: Taurine (TAU) and creatine (Cr) are common ergogenic aids used by athletes to enhance performance; however, the effect of their combined supplementation, and on recovery in high temperature and humidity environments, has not been studied. HYPOTHESIS: Combined TUA and Cr will have greater effect on physiological indicators and repetitive sprint performance recovery after exhaustive exercise under hot and humid conditions than single supplementation or placebo. STUDY DESIGN: Single-blind crossover randomized controlled study. LEVEL OF EVIDENCE: Level 2. METHODS: Participants (12 sports students) were assigned randomly to 1 of 4 supplementation intervention groups: placebo (P), taurine (T), creatine (C), or taurine + creatine (T+C). Exercise protocol included exhaustion tests and repeated sprinting exercises were conducted in a laboratory environment at 35 °C/65% relative humidity. Heartrate, blood lactate (BLa), tympanic temperature, thermal sensation, and rating of perceived exertion were monitored throughout. Heartrate variability, time to exhaustion (TTE), reaction time, and countermovement jump (CMJ) height were tracked before and after exhaustion exercise and before sprint exercise. RESULTS: TTE was significantly higher in the T+C group than in the P group (P = 0.04). BLa and tympanic temperature increased rapidly in all 4 conditions, then decreased gradually, and T group peak values were higher than those of P group (P = 0.04; P < 0.01). CMJ decreased in the C and T+C groups (P = 0.04; P = 0.04) after exhaustive exercise, unlike other groups (P > 0.05). Indicators of repeated sprint exercise, peak power, mean power, and power decrement showed a decreasing trend within groups but no difference between groups (P > 0.05). CONCLUSION: In this small student group, under hot and humid conditions, T+C supplementation significantly enhanced TTE. CLINICAL RELEVANCE: TAU, Cr, and their combined supplementation do not significantly improve repeated sprint performance after exhaustive exercise under hot and humid conditions.