The histidine-containing dipeptide carnosine (beta-alanyl-L-histidine) has been shown to significantly contribute the physicochemical buffering in skeletal muscles, which maintains acid-base balance when a large quantity of H(+) is produced association with lactic acid accumulation during high-intensity exercise. purpose present study was examine relations among muscle concentration, fiber-type distribution, and exercise performance. subjects were 11 healthy men. Muscle biopsy samples taken...

Acute and long-term effects of resistance-training regimens with varied combinations high- low-intensity exercises were studied. changes in the serum growth hormone (GH) concentration initially measured after 3 types for knee extension exercise: a medium intensity (approximately 10 repetition maximum [RM]) short interset rest period (30 s) progressively decreasing load ("hypertrophy type"); 5 sets high-intensity (90% 1RM) low-repetition exercise ("strength single set high-repetition added...

Abstract Induction is a heuristic method to guess or discover regularities (constant patterns that things follow such as large variety of categories natural laws). However, the main stream study induction focuses not on but strength evaluation given inductive arguments. This article describes an attempt construct framework this basis idea human beings have acquired through evolution perceptual-cognitive system with functions: perception and certain primitive in perceived things, extraction...

This study compared the fat metabolism between "a single bout of prolonged exercise" and "repeated bouts equivalent exercise intensity total duration. Seven men performed three trials: 1) a 60-min (Single); 2) two 30-min exercise, separated by 20-min rest (Repeated); 3) rest. Each was with cycle ergometer at 60% maximal oxygen uptake. In Single Repeated trials, serum glycerol, growth hormone, plasma epinephrine, norepinephrine concentrations increased significantly (P<0.05) during first...

It has been suggested that histidine-containing dipeptide carnosine (β-alanyl-L-histidine), which is believed to act as a cytosolic buffering agent, present predominantly in skeletal muscle. The purpose of this study was investigate the effects sprint training (30-s maximal cycle ergometer sprinting) on muscle concentration. Six untrained males trained 2 days per week for 8 weeks an electronic-braked ergometer. Muscle biopsy samples were taken from vastus lateralis before and two after last...

Adipose tissue plays complex role(s) in metabolic and endocrine control. To date, little work has been done the horse regarding adipocytokines.This study was conducted to determine whether therapeutic levels of chronic beta-agonist administration, exercise, or both could alter their concentrations.A total 23 standard-bred mares were divided into four experimental groups: clenbuterol (2.4 microg.kg(-1) bw twice daily for 8 wk) plus exercise (8 wk, 20 min.d(-1) at 50% VO2max; CLENEX; N = 6),...

This study examined the effects of whole-body vibration (WBV) on hormone and lipolytic responses. Eight male subjects performed WBV control (CON) trials separate days. The session consisted 10 sets for a duration 60 s with rest periods between each set (frequency 26 Hz). maintained static squat position knees bent platform. In CON trial, stimulation was not imposed. Blood samples were collected before both during recovery period. concentrations plasma epinephrine (Epi) norepinephrine (NE)...

Purpose: This study examined effects of prior resistance exercise on fat metabolism during subsequent submaximal with different recovery periods between bouts. Methods: Ten male subjects performed three types regimens: 1) endurance only (E), 2) and 20 min rest (RE20), 3) 120 (RE120). Resistance consisted six exercises, each to four sets at 10-repetition maximum. Subjects cycle ergometer 50% the maximal oxygen uptake for 60 min. Results: Prior caused increases in blood lactate, plasma...

This study examined acute hormone and recovery responses to resistance exercise with slow movements. Six men performed three types of regimens (five sets knee extension exercise): (1) high-intensity normal movement (HN; 1 s for lifting action, lowering action), (2) low-intensity (LS; 3 (3) (LN; action). The intensity in the first set was at approximately 80% 1RM HN 40% LS LN. In LS, subjects each until exhaustion. LN, both number repetitions were matched those LS. total work volume showed...

The purposes of this study were to investigate firstly, the ankle joint stiffness during eccentric phase in rebound jumps, and secondly, effect on torque at midpoint. Nine active males executed drop jumps from a height 30 cm (RDJ30) 50 (RDJ50), 5-repetition (5RJ). Force plate data, limb position electromyogram (EMG) medial head gastrocnemius (GAS), soleus (SOL), tibialis anterior (TA) muscles recorded simultaneously all jumps. When compared with RDJ30 RDJ50, 5RJ displayed significantly...

Acute and long-term effects of resistance-training regimens with varied combinations high- low-intensity exercises were studied. changes in the serum growth hormone (GH) concentration initially measured after 3 types for knee extension exercise: a medium intensity (approximately 10 repetition maximum [RM]) short interset rest period (30 s) progressively decreasing load ("hypertrophy type''); 5 sets high-intensity (90% 1RM) low-repetition exercise ("strength single set high-repetition added...

The purpose of this study was to investigate the effects long-term chicken breast extract (CBEX) supplementation, a rich source carnosine and anserine, on relatively high intensity endurance performance. Sixteen healthy male subjects were divided into CBEX group (n=8) placebo (n=8). orally administered 200 ml drink which contained 4g anserine per day for 30 days. 200ml same taste no anserine. Before after ingestion period, performed three sessions consecutive exercise (first session: 30-min...

This study compared the fat metabolism between ‘a single bout of 30-min exercise’ and ‘three bouts 10-min same intensity (60% maximal oxygen uptake) total exercise duration (30 min). Nine healthy men participated in three trials: (1) a (Single), (2) exercise, separated by rest (Repeated) (3) (Rest). Each was performed with cycle ergometer at 60% uptake, followed 180-min rest. Blood lactate concentration increased significantly after Single Repeated trials (P<0·05), but trial showed higher...

This study clarified the specificity of leg strength and power in several sport athletes. To accomplish this purpose, a new physical fitness test was developed to evaluate capacity for ballistic stretch-shortening cycle (SSC) movements. 1. The drop jump (DJ), typical SSC movement used test. A few experiments were performed determine best dropping height jumping technique DJ 10 college male These results showed method rebound with small angular displacement knee from 0.3 m beause appearing...

This study examined effects of prior sprint exercise on hormonal responses to subsequent resistance with different recovery periods between bouts.Nine men performed three types regimens: 1) only (R), 2) and 60 min rest (SR60), 3) 180 (SR180). Sprint exercises consisted maximal cycling (eight sets 5-s sprints 30-s sets) 10-min warm-up. Resistance five exercises, each at a 10-repetition maximum 1-min periods.Prior significantly increased blood lactate, glycerol, epinephrine, norepinephrine,...

Intramuscular carnosine buffers protons (H+) in skeletal muscle. We examined the effects of supplementation with chicken breast meat extract (CBEX) containing and anserine on hormonal responses to resistance exercise. Twenty-two men were assigned a CBEX drink group (CBEX total 2 g anserine) (n = 14) or placebo 8). The subjects ingested prescribed (100 mL) twice daily for 30 days without physical training. Before after period, completed 5 sets bilateral knee extension exercises (with 90-s...

The present study examined the effect of long-term intake chicken breast extract (CBEX), which contains carnosine and anserine, on content in skeletal muscles humans short-period exercise performance with high intensity.Before after CBEX was orally given to 13 healthy male subjects for 30 days, pieces their muscle (M. vastus lateralis) were excised concentration measured. Before test period, (mean peak power body weight) determined by pedaling sec. On basis baseline concentrations carnosine,...

Free fatty acids (FFA) affects anterior pituitary function and an acute increase in circulating FFA attenuates the growth hormone (GH) secretion stimulated pharmacologically (Casanueva et al. 1987). Prolonged endurance exercise augments lipolysis, subsequently causes increases glycerol. Although resistance is a potent stimulus for GH secretion, response after single bout of might be diminished by prior concomitant FFA. PURPOSE The present study investigated influence on both anabolic...

The histidine-containing dipeptide carnosine (p-alanyl-L-histidine) exists widely in the skeletal muscle of vertebrates. biological role has not been well established, but it is believed to act as a cytosolic buffering agent. We prepared an extract chicken breast meat that abundant source and its related anserine (β-alanyl-1-methyl-L-histidine). purpose this study was examine effects (CBEX^<TM>) supplementation on high-intensity intermittent exercise performance. Eight male subjects...