TY - JOUR
T1 - The influence of carbohydrate and protein ingestion during recovery from prolonged exercise on subsequent endurance performance
AU - Betts, J
AU - Williams, C
AU - Duffy, K
AU - Gunner, F
N1 - ID number: ISI:000250517300001
PY - 2007
Y1 - 2007
N2 - Ingesting carbohydrate plus protein following prolonged exercise may restore exercise capacity more effectively than ingestion of carbohydrate alone. The objective of the present study was to determine whether this potential benefit is a consequence of the protein fraction per se or simply due to the additional energy it provides. Six active males participated in three trials, each involving a 90-min treadmill run at 70% maximal oxygen uptake ( run 1) followed by a 4-h recovery. At 30-min intervals during recovery, participants ingested solutions containing: (1) 0.8 g carbohydrate . kg body mass (BM)(-1) . h(-1) plus 0.3 g . kg(-1) . h(-1) of whey protein isolate (CHO- PRO); (2) 0.8 g carbohydrate . kg BM-1 . h(-1) (CHO); or (3) 1.1 g carbohydrate . kg BM-1 . h(-1) (CHO-CHO). The latter two solutions matched the CHO-PRO solution for carbohydrate and for energy, respectively. Following recovery, participants ran to exhaustion at 70% maximal oxygen uptake (run 2). Exercise capacity during run 2 was greater following ingestion of CHO- PRO and CHO- CHO than following ingestion of CHO (P
AB - Ingesting carbohydrate plus protein following prolonged exercise may restore exercise capacity more effectively than ingestion of carbohydrate alone. The objective of the present study was to determine whether this potential benefit is a consequence of the protein fraction per se or simply due to the additional energy it provides. Six active males participated in three trials, each involving a 90-min treadmill run at 70% maximal oxygen uptake ( run 1) followed by a 4-h recovery. At 30-min intervals during recovery, participants ingested solutions containing: (1) 0.8 g carbohydrate . kg body mass (BM)(-1) . h(-1) plus 0.3 g . kg(-1) . h(-1) of whey protein isolate (CHO- PRO); (2) 0.8 g carbohydrate . kg BM-1 . h(-1) (CHO); or (3) 1.1 g carbohydrate . kg BM-1 . h(-1) (CHO-CHO). The latter two solutions matched the CHO-PRO solution for carbohydrate and for energy, respectively. Following recovery, participants ran to exhaustion at 70% maximal oxygen uptake (run 2). Exercise capacity during run 2 was greater following ingestion of CHO- PRO and CHO- CHO than following ingestion of CHO (P
UR - http://dx.doi.org/10.1080/02640410701213459
U2 - 10.1080/02640410701213459
DO - 10.1080/02640410701213459
M3 - Article
SN - 0264-0414
VL - 25
SP - 1449
EP - 1460
JO - Journal of Sports Sciences
JF - Journal of Sports Sciences
IS - 13
ER -