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Cited by 24Sports Performance and TrainingGrowth Hormone and Insulin-like Growth FactorsExercise and Physiological Responses

Attenuated Growth Hormone Response to Resistance Exercise with Prior Sprint Exercise

GOTO, KAZUSHIGE, ISHII, NAOKATA, KUROKAWA, KAN, TAKAMATSU, KAORU·2007·Medicine & Science in Sports & Exercise
DOI 10.1249/01.mss.0000240321.23653.aa
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Abstract

PURPOSE: This study examined effects of prior sprint exercise on hormonal responses to subsequent resistance exercise with different recovery periods between exercise bouts. METHODS: Nine men performed three types of exercise regimens: 1) resistance exercise only (R), 2) resistance exercise with prior sprint exercise and 60 min of rest (SR60), and 3) resistance exercise with prior sprint exercise and 180 min of rest (SR180). Sprint exercises consisted of maximal sprint cycling (eight sets of 5-s sprints with 30-s rest periods between sets) with prior 10-min warm-up. Resistance exercise consisted of five exercises, each with three sets at a 10-repetition maximum with 1-min rest periods. RESULTS: Prior sprint exercise significantly increased blood lactate, glycerol, epinephrine, norepinephrine, growth hormone (GH), and free testosterone concentrations (P < 0.05). Before the resistance exercise, free fatty acids concentration was higher in the SR180 trial than in the SR60 and R trials (P < 0.05), whereas GH concentration was significantly higher in the SR60 trial (P < 0.01). After the resistance exercise, no significant difference was found in responses of pH, epinephrine, norepinephrine, and free testosterone among trials. The SR180 trial showed a smaller GH response (peak value: 7.8 +/- 1.6 (SE) ng.mL(-1)) than in the R trial (12.8 +/- 3.7 ng.mL(-1)), with no significant difference between trials. In the SR60 trial, GH response to resistance exercise was attenuated (3.3 +/- 1.2 ng.mL(-1), P < 0.01). Maximal strength and power measured immediately before the resistance exercise showed no difference among trials. CONCLUSION: These results indicate that GH response to resistance exercise was attenuated strongly when the exercise was preceded by sprint exercise and a shorter (60 min) recovery period.

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  • Team sports players are often encouraged to acutely consume carbohydrates on the day of competition, including before exercise, throughout match-play, and during breaks such as half-time.

    “Team sports players are often encouraged to acutely consume carbohydrates on the day of competition in a manner that usually includes ingestion in the hours before exercise, throughout match-play and during breaks in play, such as at half-time 39 .”

    From Half-time strategies to enhance second-half performance in team-sports players: A review and recommendations (2015) · cites this paper as [39]

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Authors
GOTO, K., ISHII, N., KUROKAWA, K., & TAKAMATSU, K.
Affiliations
  • The University of Tokyo (JP)
  • University of Tsukuba (JP)
ORCID
Venue
Medicine & Science in Sports & Exercise
Publisher
Ovid Technologies (Wolters Kluwer Health)
Published
2007-01
Volume
39
Issue
1
Pages
108-115
ISSN
0195-9131 (ISSN-L)
DOI
10.1249/01.mss.0000240321.23653.aa
OpenAlex
W2005698339
Cited by
24
References
27
Citations by year
2026: 1 · 2024: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 2 · 2016: 2 · 2015: 4 · 2014: 2
FWCI
2.77
Type
journal article
Language
en
Open access
closed
Locations
  • Medicine & Science in Sports & Exercise (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
growth hormone response, resistance training, sprint exercise, epinephrine, norepinephrine, free testosterone, blood lactate, free fatty acids, maximal strength, output power
MeSH terms
Fatty Acids, Nonesterified, Humans, Japan, Male, Running, Weight Lifting, Exercise, Human Growth Hormone, Muscle Strength

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