| Satellite cell content is specifically reduced in type II skeletal muscle fibers in the elderly LB Verdijk, R Koopman, G Schaart, K Meijer, HHCM Savelberg, ... American Journal of Physiology-Endocrinology and Metabolism, 2007 | 647 | 2007 |
| Combined ingestion of protein and free leucine with carbohydrate increases postexercise muscle protein synthesis in vivo in male subjects R Koopman, AJM Wagenmakers, RJF Manders, AHG Zorenc, ... American Journal of Physiology-Endocrinology and Metabolism 288 (4), E645-E653, 2005 | 538 | 2005 |
| Optimisation of oil red O staining permits combination with immunofluorescence and automated quantification of lipids R Koopman, G Schaart, MK Hesselink Histochemistry and cell biology 116, 63-68, 2001 | 538 | 2001 |
| Aging, exercise, and muscle protein metabolism R Koopman, LJC van Loon Journal of applied physiology 106 (6), 2040-2048, 2009 | 514 | 2009 |
| Ingestion of a protein hydrolysate is accompanied by an accelerated in vivo digestion and absorption rate when compared with its intact protein R Koopman, N Crombach, AP Gijsen, S Walrand, J Fauquant, AK Kies, ... The American journal of clinical nutrition 90 (1), 106-115, 2009 | 438 | 2009 |
| Ultrasonography in the intensive care setting can be used to detect changes in the quality and quantity of muscle and is related to muscle strength and function SM Parry, D El-Ansary, MS Cartwright, A Sarwal, S Berney, R Koopman, ... Journal of critical care 30 (5), 1151. e9-1151. e14, 2015 | 437 | 2015 |
| Exercising before protein intake allows for greater use of dietary protein–derived amino acids for de novo muscle protein synthesis in both young and elderly men B Pennings, R Koopman, M Beelen, JMG Senden, WHM Saris, ... The American journal of clinical nutrition 93 (2), 322-331, 2011 | 368 | 2011 |
| Increase in S6K1 phosphorylation in human skeletal muscle following resistance exercise occurs mainly in type II muscle fibers R Koopman, AHG Zorenc, RJJ Gransier, D Cameron-Smith, ... American Journal of Physiology-Endocrinology and Metabolism 290 (6), E1245-E1252, 2006 | 365 | 2006 |
| Aging is accompanied by a blunted muscle protein synthetic response to protein ingestion BT Wall, SH Gorissen, B Pennings, R Koopman, BBL Groen, LB Verdijk, ... PloS one 10 (11), e0140903, 2015 | 349 | 2015 |
| Long-term leucine supplementation does not increase muscle mass or strength in healthy elderly men S Verhoeven, K Vanschoonbeek, LB Verdijk, R Koopman, WKWH Wodzig, ... The American journal of clinical nutrition 89 (5), 1468-1475, 2009 | 331 | 2009 |
| Intramyocellular lipids form an important substrate source during moderate intensity exercise in endurance‐trained males in a fasted state LJC Van Loon, R Koopman, JHCH Stegen, AJM Wagenmakers, ... The Journal of physiology 553 (2), 611-625, 2003 | 309 | 2003 |
| Intramyocellular lipid content in type 2 diabetes patients compared with overweight sedentary men and highly trained endurance athletes LJC Van Loon, R Koopman, R Manders, W van der Weegen, ... American Journal of Physiology-Endocrinology And Metabolism 287 (3), E558-E565, 2004 | 276 | 2004 |
| Co-ingestion of protein and leucine stimulates muscle protein synthesis rates to the same extent in young and elderly lean men R Koopman, L Verdijk, RJF Manders, AP Gijsen, M Gorselink, E Pijpers, ... The American journal of clinical nutrition 84 (3), 623-632, 2006 | 271 | 2006 |
| Coingestion of carbohydrate with protein does not further augment postexercise muscle protein synthesis R Koopman, M Beelen, T Stellingwerff, B Pennings, WHM Saris, AK Kies, ... American Journal of Physiology-Endocrinology and Metabolism 293 (3), E833-E842, 2007 | 241 | 2007 |
| Assessment of impairment and activity limitations in the critically ill: a systematic review of measurement instruments and their clinimetric properties SM Parry, CL Granger, S Berney, J Jones, L Beach, D El-Ansary, ... Intensive care medicine 41, 744-762, 2015 | 212 | 2015 |
| Combined ingestion of protein and carbohydrate improves protein balance during ultra-endurance exercise R Koopman, DLE Pannemans, AE Jeukendrup, AP Gijsen, JMG Senden, ... American Journal of Physiology-Endocrinology and Metabolism 287 (4), E712-E720, 2004 | 206 | 2004 |
| Intramyocellular lipid and glycogen content are reduced following resistance exercise in untrained healthy males R Koopman, RJF Manders, RAM Jonkers, GBJ Hul, H Kuipers, ... European journal of applied physiology 96, 525-534, 2006 | 198 | 2006 |
| Dietary protein digestion and absorption rates and the subsequent postprandial muscle protein synthetic response do not differ between young and elderly men R Koopman, S Walrand, M Beelen, AP Gijsen, AK Kies, Y Boirie, ... The Journal of nutrition 139 (9), 1707-1713, 2009 | 193 | 2009 |
| Whole body deletion of AMP-activated protein kinase β2 reduces muscle AMPK activity and exercise capacity GR Steinberg, HM O'Neill, NL Dzamko, S Galic, T Naim, R Koopman, ... Journal of Biological Chemistry 285 (48), 37198-37209, 2010 | 188 | 2010 |
| A single session of resistance exercise enhances insulin sensitivity for at least 24 h in healthy men R Koopman, RJF Manders, AHG Zorenc, GBJ Hul, H Kuipers, HA Keizer, ... European journal of applied physiology 94, 180-187, 2005 | 182 | 2005 |
