Effects of Creatine Monohydrate Supplementation During Combined Strength and High Intensity Rowing Training on Performance

Abstract

This study investigated the effect of creatine monohydrate (Cr) supplementation on performance and training volume in rowers. Twenty-two rowers trained with continuous and interval rowing and resistance training 4 and 2 days/week, respectively, for 6 weeks. Cr supplementation consisted of a 5-day load (0.3 g/kg(-1) x day(-1)) followed by a 5-week maintenance dose (0.03 g/kg(-1) x day(-1)) while training. Five days of Cr loading did not change body composition, repeated interval rowing performance, 2,000-m rowing times, or strength performance. Five additional weeks of training with a maintenance dose of Cr or placebo significantly improved body composition, VO2max, 2,000-m rowing times, repeated power interval performance, and strength to a similar extent in both groups. Subjects training with Cr did not perform more repetitions per set of strength exercise nor produce or maintain higher power outputs during repeated rowing sessions. Cr supplementation did not increase performance or training volume over a placebo condition in rowers that performed a combined high intensity rowing and strength program.

Caffeine and Bicarbonate for Speed. A Meta-Analysis of Legal Supplements Potential for Improving Intense Endurance Exercise Performance

“…Creatine has been investigated in a few studies with reports of both unchanged (Burke et al, 1996; Mujika et al, 1996; Syrotuik et al, 2001; De Andrade Nemezio et al, 2015) and improved performance (Rossiter et al, 1996; McNaughton et al, 1998). Importantly the majority of these studies reported mean power from ergometers (Rossiter et al, 1996; McNaughton et al, 1998; Syrotuik et al, 2001; De Andrade Nemezio et al, 2015) but for athletes in which body mass often is a concern it is important to account for any increase in weight which is common with creatine supplementation (Mujika et al, 1996; McNaughton et al, 1998; De Andrade Nemezio et al, 2015). Accordingly, an increased body weight will increase resistive forces on an athlete during forward propulsion leading to a higher energy expenditure for a given speed especially during running (LeCheminant et al, 2009) and in the water (Mujika et al, 1996).…”

The Effect of High-Intensity Rowing and Combined Strength and Endurance Training on Left Ventricular Systolic Function and Morphology

“…A multiple repetition maximum (mRM) strength assessment was completed for bilateral leg press at a 458 incline and supine bench press exercises, as previously described for our laboratory [30]. Multiple RM strength test protocols have been shown to accurately predict 1 RM in our laboratory [31].…”

The effects of a pre-workout supplement containing caffeine, creatine, and amino acids during three weeks of high-intensity exercise on aerobic and anaerobic performance

“…Since many team sports, such as football, basketball, hockey and soccer utilize repeated bouts of short sprints separated by active recovery periods, interval running may be applicable to many sports and sensitive to nutritional supplements that are designed to delay high-intensity, exercise-induced fatigue. In fact, evidence exists to support the use of high-intensity interval training (HIIT) strategies to improve performance [7], however, only a few studies have examined HIIT combined with nutritional supplementation [8-13]. …”