This study compared the effects of order of muscle groups' exercised (larger to smaller muscles vs. smaller to larger muscles) on the acute levels of total testosterone, free testosterone and cortisol during resistance training (RT) sessions. Healthy male participants (n=8; age: 28.8 ± 6.4 years; body mass: 87.0 ± 10.6 kg; body height: 181.0 ± 0.7 cm; BMI: 26.5 ± 4.1) were randomly separated in...

The primary aim of the study was to determine the efficacy of acute caffeine intake to enhance intense resistance training performance. Fourteen resistance-trained men (age and body mass = 23.1 ± 1.1 years and 83.4 ± 13.2 kg, respectively) who regularly consumed caffeine ingested caffeine (6 mg · kg(-1)) or placebo 1 hour before completion of 4 sets of barbell bench press, leg press, bilateral ...

We measured blood lactate, protein carbonyls (PC), and malondialdehyde (MDA) before and immediately after exercise (graded exercise treadmill test [GXT], Wingate cycle sprint, barbell squat, and barbell bench press) in active men. Data were analyzed using a 4 (exercise mode) x 2 (time) ANOVA with Tukey post hoc testing, and pairwise correlations were made. An interaction was noted for lactate (...

CASE REPORT A thirteen year old boy (at the 80th percentile for height and weight) was weight-lifting, alone, in a makeshift gymnasium at his parents' house. As he approached the apex of a lift, the barbell weighing 30 kg passed posterior to his centre of gravity and began to pull him over backwards. In attempting to retrieve the situation he felt the sudden onset of pain in both wrists as they...

The purpose was to evaluate neuromuscular fatigue’s effect on unloaded and loaded countermovement jump (CMJ) force-time characteristics during high-intensity tactical training. Eighteen male sixteen female Marines completed two maximal effort CMJs, in (PVC pipe) (10 kg weight vest 20 barbell) conditions, prior to, 24, 48, 72 h after starting the 4-day event. top three variables from principal c...

let $r$ be a commutative ring with identity. let $g(r)$ denote the maximal graph associated to $r$, i.e., $g(r)$ is a graph with vertices as the elements of $r$, where two distinct vertices $a$ and $b$ are adjacent if and only if there is a maximal ideal of $r$ containing both. let $gamma(r)$ denote the restriction of $g(r)$ to non-unit elements of $r$. in this paper we study the various graphi...

Front load carriage is a common occupational task in some industries (e.g. agriculture, construction), but, as compared to lifting tasks, relatively little research has been conducted on the biomechanical loading during these activities. The focus of this study was to explore the low back biomechanics during these activities and, specifically, to examine the effects of load height and walking s...