The Effect of Resistance Exercise Intensity on Acute Hyperglycemia in Young Adult Males

Autor: Shayán Emamjomeh, Joshua A. Cotter, Luis E Segura, Evan E. Schick
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Sports
Volume 8
Issue 9
Sports, Vol 8, Iss 121, p 121 (2020)
ISSN: 2075-4663
DOI: 10.3390/sports8090121
Popis: The purpose of this study was to examine the effect of resistance exercise (RE) intensity on acute hyperglycemia, in young adult males. Thirteen males (age 23.43 ±
2.18 years, height 175.16 ±
10.44 cm, weight 77.02 ±
8.91 kg, body fat 20 ±
0.03%) participated in three randomized testing sessions, each separated by 96 h. The three testing conditions were: control (CON
induction of hyperglycemia with no-exercise), high (HI
induction of hyperglycemia followed by high-intensity RE: 5 ×
4, 90% 1-repetition maximum (1-RM)), and moderate (MO
induction of hyperglycemia followed by low-intensity RE: 3 ×
14, 65% 1-RM). In all three testing conditions, participants orally ingested a D100 (100 g/10 oz) glucose beverage at a dosage of 2 g glucose/kg body weight and capillary blood was obtained for plasma glucose and insulin analysis at 0 (fasting), 30, 60, 90 and 120 min, following glucose ingestion. At 30-min post-ingestion in the HI and MO conditions, participants began the respective RE protocols. Acute hyperglycemia was achieved throughout all three 2-h testing conditions
mean 2-h plasma glucose levels during CON (7.1 ±
1.3 mmol∙L&minus
1), MO (7.5 ±
0.6 mmol∙L&minus
1) and HI (8.2 ±
1.9 mmol∙L&minus
1) were all significantly (p <
0.05) greater than mean fasting plasma glucose (5.6 ±
0.46 mmol∙L&minus
1). Plasma glucose and insulin did not differ (p <
0.05) between treatment conditions at any times points over the 120 min, however, 2-h glucose area under the curve in the HI condition was significantly greater (p <
0.05) than CON and MO. In conclusion, this study indicates that hyperglycemia, induced prior to RE, may be exacerbated by high-intensity RE.
Databáze: OpenAIRE