The purpose of this study was to investigate the effect of 8 weeks resistance training with different intensity on leukocyte count, IgG, cortisol and lactate concentration in untrained men. 24 untrained male (aged 23.67±1.71 years; height 176.04±5.82 cm; weight 70.78±6.66 kg and body fat 15.82±2.47 percent) were selected and randomly divided into three groups: high-intensity (80%1RM)(n=8), low-...

the aim of this study was to investigate the effect of 10 weeks of resistance training on serum levels of heat shock protein 70 (hsp70) and insulin resistance in type 2 diabetic women. 20 women with type 2 diabetes were selected by purposive sampling method and randomly divided into experimental group (n = 10, mean age 47.13±6.27 year, bmi 28.45±3.32 kg/m²) and control group (n = 10, mean age 5...

This study aimed to clarify the relationships between isometric squat (IS) using a back dynamometer and 1 repetition maximum (1RM) squat for maximum force and muscle activities and to examine the effectiveness of a 1RM estimation method based on IS. The subjects were 15 young men with weight training experience (mean age 20.7 ± 0.8 years, mean height 171.3 ± 4.4 cm, mean weight 64.4 ± 8.4 kg). ...

The aim of this study was to verify the relationship of strength and power with performance on an international level karate team during official kumite simulations. Fourteen male black belt karate athletes were submitted to anthropometric data collection and then performed the following tests on two different days: vertical jump test, bench press and squat maximum dynamic strength (1RM) tests....

It is generally believed that optimal hypertrophic and strength gains are induced through moderate- or high-intensity resistance training, equivalent to at least 60% of an individual's 1-repetition maximum (1RM). However, recent evidence suggests that similar adaptations are facilitated when low-intensity resistance exercise (~20-50% 1RM) is combined with blood flow restriction (BFR) to the wor...

The purpose of this study was to (a) assess the usefulness of volume load (VL), session rate of perceived exertion (SRPE), RPE load (RPEL), and a modified RPEL (RPEL-2) to estimate internal load from resistance exercise (RE) and (b) further assess the interactions between SRPE, VL, and RE intensity. Twelve healthy men (25 ± 4 years) completed RE sessions at 55, 70, and 85 1 repetition maximum (...

The purpose of this study was to assess changes in upper-body muscular strength and work capacity following off-season resistance training and the resultant effect on prediction of muscular strength (1 repetition maximum, or 1RM). National Collegiate Athletic Association (NCAA) Division II football players (n = 58) were divided into low-strength (LS, 1RM <275 lb, n = 23) and high-strength (HS, ...

2 ABSTRACT The purpose of this study was to compare muscle activation in eight superficial lower limb muscles during execution of barbell back squats while in barefoot and athletic shoe conditions. It was hypothesized that greater muscle activity would be seen when squats were performed in barefoot conditions. Six participants were included in the study (means: 21.33±1.53 years, 170.45±11.33cm ...

This study investigated how an eight-week plyometric exercise training program modifies the muscular strength characteristic of ball game athletes in Obafemi Awolowo University, Ile-Ife, and also determined differences effect by sports. The adopted a pretest-posttest quasi-experimental design. Pre-test (baseline) data were recorded before intervention was administered. Post-test within 24hrs co...

The purpose of this study was to identify differences in maximum strength after an intense strength training program, contrasting muscle groups from upper limbs versus lower limbs. The sample consisted of 10 healthy elderly males (age 73±6 years) with independent living. The training program lasted 12 weeks (3 × week, 50 to 80% of 1RM, 2-3 sets, 6 to 12 repetitions). Two muscle groups were anal...