Acute Salivary Hormone Responses to Complex Exercise Bouts.
Summary of "Acute Salivary Hormone Responses to Complex Exercise Bouts."
Beaven, CM, Gill, ND, Ingram, JR, and Hopkins, WG. Acute salivary hormone responses to complex exercise bouts. J Strength Cond Res 24(x): 000-000, 2010-The combination of resistance and plyometric training, or complex training, may yield greater functional gains than either method alone. As steroid hormones respond to exercise stimuli and modulate the functional outcomes, it is possible that complex training creates an enhanced anabolic physiological milieu for adaptation. We investigated acute responses of salivary testosterone and cortisol to complex exercise bouts. After a standardized warm-up, 16 semiprofessional rugby players performed 1 of 4 exercise bouts in a cross-over manner: power-power; power-strength; strength-power; or strength-strength. Each player completed each of the 4 bouts twice over a 4-week period in a balanced random order such that each player performed a total of 8 bouts. The power block consisted of 3 sets of 3 repetitions of jump squat exercise at 50% of 1-repetition maximum load. The strength block consisted of three sets of three repetitions of box squat exercise at a 3-repetition maximum load. There were 3-minute rest periods between sets and 4-minute rest periods between exercise blocks. Saliva was sampled before, during, and immediately after the exercise bout. The greatest overall hormonal responses were a small increase in testosterone (13%; 90% confidence limits +/-7%) and a trivial increase in cortisol (27%; +/-30%) after the strength-power bout. A clear difference was observed between the strength-power and the power-power bouts immediately after exercise for testosterone (10%; +/-8%) and cortisol (29%; +/-17%). The preceding exercise block had little effect on subsequent strength and power performance. The hormonal response after the strength-power bout suggests that this exercise sequence provides an enhanced anabolic milieu for adaptation.
1Institute of Sport and Recreation Research, AUT University, Auckland, New Zealand; and 2Health and Food Group, Plant and Food Research, Auckland, New Zealand.
This article was published in the following journal.
Name: Journal of strength and conditioning research / National Strength & Conditioning Association
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20703172
- DOI: http://dx.doi.org/10.1519/JSC.0b013e3181bf4414
Medical and Biotech [MESH] Definitions
The exercise capacity of an individual as measured by endurance (maximal exercise duration and/or maximal attained work load) during an EXERCISE TEST.
Controlled physical activity, more strenuous than at rest, which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used. The intensity of exercise is often graded, using criteria such as rate of work done, oxygen consumption, and heart rate.
Salivary Gland Calculi
Calculi occurring in a salivary gland. Most salivary gland calculi occur in the submandibular gland, but can also occur in the parotid gland and in the sublingual and minor salivary glands.
Salivary Proteins And Peptides
Proteins and peptides found in SALIVA and the SALIVARY GLANDS. Some salivary proteins such as ALPHA-AMYLASES are enzymes, but their composition varies in different individuals.
Asthma attacks following a period of exercise. Usually the induced attack is short-lived and regresses spontaneously. The magnitude of postexertional airway obstruction is strongly influenced by the environment in which exercise is performed (i.e. inhalation of cold air during physical exertion markedly augments the severity of the airway obstruction; conversely, warm humid air blunts or abolishes it).
The purpose of this study was to investigate associations between acute exercise-induced hormone responses and adaptations to high intensity resistance training in a large cohort (n = 56) of young m...
The aim of this study was to examine the effect of supra-maximal exercise on circulating concentrations of salivary testosterone, salivary cortisol, and salivary immunoglobulin A in female adolescents...
The extent to which dietary supplementation with the nitric oxide synthase (NOS) substrate, L-arginine (ARG), impacts on NO production and NO-mediated physiological responses is controversial. This ra...
We examined whether a prior bout of eccentric exercise in the elbow flexors provided protection against exercise-induced muscle damage in the contralateral arm. Fifteen males (age 22.7 ± 2.1 years...
PURPOSE:: To investigate the influence of pacing strategy on pulmonary V o2 kinetics and performance during high-intensity exercise. METHODS:: Seven males completed 3-min and 6-min bouts of cycle exer...
Although exercise is widely regarded as a key component in obesity treatment, few individuals seem able to adhere to exercise programs over time. In response, efforts have focused on deve...
OBJECTIVES: I. Determine whether release of endogenous growth hormone (GH)-releasing hormone is involved in GH responses to clonidine, pyridostigmine, levodopa, arginine, GH-releasing pep...
Ghrelin is a GH-secretagogue gastrointestinal hormone that regulates feeding behavior by interacting directly with hypothalamic centers in concert with other negative and permissive neurom...
The overall aim of the project is to determine whether or not exercise influences cardiovascular or nervous responses to meal ingestion in individuals with insulin resistance or type 2 dia...
A randomised, cross-over trial targeting a small sample of older (age 45-65 years) overweight adults with type 2 diabetes the aims of this pilot study are to: 1. Determine the feasibili...