PMID- 27523919 OWN - NLM STAT- MEDLINE DCOM- 20171016 LR - 20220317 IS - 1873-6815 (Electronic) IS - 0531-5565 (Linking) VI - 83 DP - 2016 Oct TI - Effect of creatine supplementation and drop-set resistance training in untrained aging adults. PG - 112-9 LID - S0531-5565(16)30256-X [pii] LID - 10.1016/j.exger.2016.08.005 [doi] AB - OBJECTIVE: To investigate the effects of creatine supplementation and drop-set resistance training in untrained aging adults. Participants were randomized to one of two groups: Creatine (CR: n=14, 7 females, 7 males; 58.0+/-3.0yrs, 0.1g/kg/day of creatine+0.1g/kg/day of maltodextrin) or Placebo (PLA: n=17, 7 females, 10 males; age: 57.6+/-5.0yrs, 0.2g/kg/day of maltodextrin) during 12weeks of drop-set resistance training (3days/week; 2 sets of leg press, chest press, hack squat and lat pull-down exercises performed to muscle fatigue at 80% baseline 1-repetition maximum [1-RM] immediately followed by repetitions to muscle fatigue at 30% baseline 1-RM). METHODS: Prior to and following training and supplementation, assessments were made for body composition, muscle strength, muscle endurance, tasks of functionality, muscle protein catabolism and diet. RESULTS: Drop-set resistance training improved muscle mass, muscle strength, muscle endurance and tasks of functionality (p<0.05). The addition of creatine to drop-set resistance training significantly increased body mass (p=0.002) and muscle mass (p=0.007) compared to placebo. Males on creatine increased muscle strength (lat pull-down only) to a greater extent than females on creatine (p=0.005). Creatine enabled males to resistance train at a greater capacity over time compared to males on placebo (p=0.049) and females on creatine (p=0.012). Males on creatine (p=0.019) and females on placebo (p=0.014) decreased 3-MH compared to females on creatine. CONCLUSIONS: The addition of creatine to drop-set resistance training augments the gains in muscle mass from resistance training alone. Creatine is more effective in untrained aging males compared to untrained aging females. CI - Copyright (c) 2016 Elsevier Inc. All rights reserved. FAU - Johannsmeyer, Sarah AU - Johannsmeyer S AD - Faculty of Kinesiology and Health Studies, University of Regina, Canada. FAU - Candow, Darren G AU - Candow DG AD - Faculty of Kinesiology and Health Studies, University of Regina, Canada. Electronic address: Darren.Candow@uregina.ca. FAU - Brahms, C Markus AU - Brahms CM AD - Faculty of Kinesiology and Health Studies, University of Regina, Canada. FAU - Michel, Deborah AU - Michel D AD - College of Pharmacy and Nutrition, University of Saskatchewan, Canada. FAU - Zello, Gordon A AU - Zello GA AD - College of Pharmacy and Nutrition, University of Saskatchewan, Canada. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20160811 PL - England TA - Exp Gerontol JT - Experimental gerontology JID - 0047061 RN - MU72812GK0 (Creatine) SB - IM MH - *Aging MH - Body Composition MH - Canada MH - Creatine/*administration & dosage MH - Diet MH - Dietary Supplements MH - Double-Blind Method MH - Female MH - Humans MH - Male MH - Middle Aged MH - Muscle Fatigue MH - Muscle Strength/*drug effects MH - Muscle, Skeletal/*drug effects MH - Organ Size MH - Physical Endurance/drug effects MH - Resistance Training/*methods MH - Sex Factors OTO - NOTNLM OT - Endurance OT - Muscle mass OT - Muscle protein catabolism OT - Sarcopenia OT - Strength EDAT- 2016/08/16 06:00 MHDA- 2017/10/17 06:00 CRDT- 2016/08/16 06:00 PHST- 2016/06/15 00:00 [received] PHST- 2016/08/04 00:00 [revised] PHST- 2016/08/10 00:00 [accepted] PHST- 2016/08/16 06:00 [entrez] PHST- 2016/08/16 06:00 [pubmed] PHST- 2017/10/17 06:00 [medline] AID - S0531-5565(16)30256-X [pii] AID - 10.1016/j.exger.2016.08.005 [doi] PST - ppublish SO - Exp Gerontol. 2016 Oct;83:112-9. doi: 10.1016/j.exger.2016.08.005. Epub 2016 Aug 11.