当前位置： SCI文献检索 > European Journal of Sport Science期刊下所有文献 > Carbohydrate mouth rinse and caffeine improves high-intensity interval running capacity when carbohydrate restricted.

Carbohydrate mouth rinse and caffeine improves high-intensity interval running capacity when carbohydrate restricted.

Abstract：

:We tested the hypothesis that carbohydrate mouth rinsing, alone or in combination with caffeine, augments high-intensity interval (HIT) running capacity undertaken in a carbohydrate-restricted state. Carbohydrate restriction was achieved by performing high-intensity running to volitional exhaustion in the evening prior to the main experimental trials and further refraining from carbohydrate intake in the post-exercise and overnight period. On the subsequent morning, eight males performed 45-min steady-state (SS) exercise (65% [Formula: see text]) followed by HIT running to exhaustion (1-min at 80% [Formula: see text]interspersed with 1-min walking at 6 km/h). Subjects completed 3 trials consisting of placebo capsules (administered immediately prior to SS and immediately before HIT) and placebo mouth rinse at 4-min intervals during HIT (PLACEBO), placebo capsules but 10% carbohydrate mouth rinse (CMR) at corresponding time-points or finally, caffeine capsules (200 mg per dose) plus 10% carbohydrate mouth rinse (CAFF + CMR) at corresponding time-points. Heart rate, capillary glucose, lactate, glycerol and NEFA were not different at exhaustion during HIT (P > 0.05). However, HIT capacity was different (P < 0.05) between all pair-wise comparisons such that CAFF + CMR (65 ± 26 min) was superior to CMR (52 ± 23 min) and PLACEBO (36 ± 22 min). We conclude that carbohydrate mouth rinsing and caffeine ingestion improves exercise capacity undertaken in carbohydrate-restricted states. Such nutritional strategies may be advantageous for those athletes who deliberately incorporate elements of training in carbohydrate-restricted states (i.e. the train-low paradigm) into their overall training programme in an attempt to strategically enhance mitochondrial adaptations of skeletal muscle.

journal_name

Eur J Sport Sci

journal_title

European journal of sport science

authors

Kasper AM,Cocking S,Cockayne M,Barnard M,Tench J,Parker L,McAndrew J,Langan-Evans C,Close GL,Morton JP

doi

10.1080/17461391.2015.1041063

subject

Has Abstract

pub_date

2016-08-01 00:00:00

pages

560-8

issue

eissn

1746-1391

issn

1536-7290

journal_volume

pub_type

杂志文章,随机对照试验

在线工具

Carbohydrate mouth rinse and caffeine improves high-intensity interval running capacity when carbohydrate restricted.