Abstract
We aimed to examine the effects of ingestion of different amounts of carbohydrate (CHO) after endurance exercise on neutrophil count, circulating cytokine levels, and the markers of neutrophil activation and muscle damage. Nine participants completed three separate experimental trials consisting of 1 h of cycling exercise at 70% V⋅O2 max, followed by ingestion of 1.2 g CHO·kg body mass−1·h−1 (HCHO trial), 0.2 g CHO·kg body mass−1·h−1 (LCHO trial), or placebo (PLA trial) during the 2 h recovery phase in random order. Circulating glucose, insulin, and cytokine levels, blood cell counts, and the markers of neutrophil activation and muscle damage were measured. The concentrations of plasma glucose and serum insulin at 1 h after exercise were higher in the HCHO trial than in the LCHO and PLA trials. Although there were significant main effects of time on several variables, including neutrophil count, cytokine levels, and the markers of neutrophil activation and muscle damage, significant time × trial interactions were not observed for any variables. These results suggest that CHO ingestion after endurance exercise does not enhance exercise-induced increase in circulating neutrophil and cytokine levels and markers of neutrophil activation and muscle damage, regardless of the amount of CHO ingested.
| Original language | English |
|---|---|
| Article number | 51 |
| Journal | Antioxidants |
| Volume | 7 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2018 Apr 1 |
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Keywords
- Exhaustion
- Inflammation
- Leukocyte
- Muscle damage
ASJC Scopus subject areas
- Physiology
- Biochemistry
- Molecular Biology
- Clinical Biochemistry
- Cell Biology
Cite this
Effects of ingestion of different amounts of carbohydrate after endurance exercise on circulating cytokines and markers of neutrophil activation. / Tanisawa, Kumpei; Suzuki, Katsuhiko; Ma, Sihui; Kondo, Saki; Okugawa, Susumu; Higuchi, Mitsuru.
In: Antioxidants, Vol. 7, No. 4, 51, 01.04.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of ingestion of different amounts of carbohydrate after endurance exercise on circulating cytokines and markers of neutrophil activation
AU - Tanisawa, Kumpei
AU - Suzuki, Katsuhiko
AU - Ma, Sihui
AU - Kondo, Saki
AU - Okugawa, Susumu
AU - Higuchi, Mitsuru
PY - 2018/4/1
Y1 - 2018/4/1
N2 - We aimed to examine the effects of ingestion of different amounts of carbohydrate (CHO) after endurance exercise on neutrophil count, circulating cytokine levels, and the markers of neutrophil activation and muscle damage. Nine participants completed three separate experimental trials consisting of 1 h of cycling exercise at 70% V⋅O2 max, followed by ingestion of 1.2 g CHO·kg body mass−1·h−1 (HCHO trial), 0.2 g CHO·kg body mass−1·h−1 (LCHO trial), or placebo (PLA trial) during the 2 h recovery phase in random order. Circulating glucose, insulin, and cytokine levels, blood cell counts, and the markers of neutrophil activation and muscle damage were measured. The concentrations of plasma glucose and serum insulin at 1 h after exercise were higher in the HCHO trial than in the LCHO and PLA trials. Although there were significant main effects of time on several variables, including neutrophil count, cytokine levels, and the markers of neutrophil activation and muscle damage, significant time × trial interactions were not observed for any variables. These results suggest that CHO ingestion after endurance exercise does not enhance exercise-induced increase in circulating neutrophil and cytokine levels and markers of neutrophil activation and muscle damage, regardless of the amount of CHO ingested.
AB - We aimed to examine the effects of ingestion of different amounts of carbohydrate (CHO) after endurance exercise on neutrophil count, circulating cytokine levels, and the markers of neutrophil activation and muscle damage. Nine participants completed three separate experimental trials consisting of 1 h of cycling exercise at 70% V⋅O2 max, followed by ingestion of 1.2 g CHO·kg body mass−1·h−1 (HCHO trial), 0.2 g CHO·kg body mass−1·h−1 (LCHO trial), or placebo (PLA trial) during the 2 h recovery phase in random order. Circulating glucose, insulin, and cytokine levels, blood cell counts, and the markers of neutrophil activation and muscle damage were measured. The concentrations of plasma glucose and serum insulin at 1 h after exercise were higher in the HCHO trial than in the LCHO and PLA trials. Although there were significant main effects of time on several variables, including neutrophil count, cytokine levels, and the markers of neutrophil activation and muscle damage, significant time × trial interactions were not observed for any variables. These results suggest that CHO ingestion after endurance exercise does not enhance exercise-induced increase in circulating neutrophil and cytokine levels and markers of neutrophil activation and muscle damage, regardless of the amount of CHO ingested.
KW - Exhaustion
KW - Inflammation
KW - Leukocyte
KW - Muscle damage
UR - http://www.scopus.com/inward/record.url?scp=85046679649&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046679649&partnerID=8YFLogxK
U2 - 10.3390/antiox7040051
DO - 10.3390/antiox7040051
M3 - Article
VL - 7
JO - Antioxidants
JF - Antioxidants
SN - 2076-3921
IS - 4
M1 - 51
ER -