title: Resistance exercise order does not determine postexercise delivery of testosterone, growth hormone, and IGF-1 to skeletal muscle.
abstract: Does resistance exercise order affect hormone availability? Participants performed arm exercise before and after leg exercise. Hormone delivery was estimated by multiplying brachial artery blood flow and hormone concentrations. Blood flow increased after arm (276%) and leg (193%; both p < 0.001) exercise. Testosterone, growth hormone, and insulin-like growth factor 1 showed with distinct delivery patterns between conditions; however (interactions all p < 0.001), net exposure was similar. The anabolic potential of postexercise hormones was not affected by exercise order.
authors: Department of Kinesiology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada.
authors: Daniel W D
authors: DW
authors: West
authors: Lisa M
authors: LM
authors: Cotie
authors: Cameron J
authors: CJ
authors: Mitchell
authors: Tyler A
authors: TA
authors: Churchward-Venne
authors: Maureen J
authors: MJ
authors: MacDonald
authors: Stuart M
authors: SM
authors: Phillips
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity; D001916:Brachial Artery / Q000502:physiology; D015444:Exercise / Q000502:physiology*; D005786:Gene Expression Regulation / Q000502:physiology; D013006:Growth Hormone / Q000378:metabolism*; D006801:Humans; D007334:Insulin-Like Growth Factor I / Q000235:genetics / Q000378:metabolism*; D008297:Male; D018482:Muscle, Skeletal / Q000098:blood supply* / Q000502:physiology; D055070:Resistance Training; D013739:Testosterone / Q000378:metabolism*; D013997:Time Factors; D055815:Young Adult
chemical_list: D013739:Testosterone; D007334:Insulin-Like Growth Factor I; D013006:Growth Hormone