Purpose: A proper warm-up method can be used as a strategy to improve the performance of athletes in various sports fields. The present study aimed compare effect two traditional and post-activation potentiation (PAP) methods on electromyographic variables lower limb muscles during squat jumps. Methods: Fourteen trained male randomly performed three different protocols: method, dynamic (PD) by ...

Background: Recent research indicates the prevalence of vitamin D deficiency worldwide and is conflicting evidence as to whether supplementation actually improves physical performance. Objectives: The purpose this study was investigate effect on improving muscle strength, volume cardiorespiratory fitness through resistance training in male athletes with deficiency. Methods: This conducted pre-t...

The aim of this study was to investigate whether it is possible to identify the first turn point of blood lactate (BL) concentration (1st lactate threshold LT1) during a discontinuous resistance exercise protocol in coronary artery disease (CAD) patients and verify if heart rate variability (HRV) responses are consistent with BL responses. A total of 22 elderly men, 12 with CAD and 10 apparentl...

The purpose of the present study was to compare the changes in muscle strength in nontrained young males performing resistance training under different supervision ratios. One hundred twenty-four young men were randomly assigned to groups trained under a high (HS, 1:5 coach to athlete ratio) or low (LS, 1:25) supervision ratio. Both groups performed identical resistance training programs. Subje...

[Purpose] The objective of this study was to evaluate the effects of resistance exercise training for strengthening muscles across multiple joints on the dynamic balance function of stroke patients. [Subjects and Methods] Subjects in the training group (n=14) and the control group (n=14) received conservative physical therapy for 30 minutes per day, five days per week, for a period of six weeks...

The Smith machine (SM) (vertical motion of bar on fixed path; fixed-form exercise) and free weights (FWs) (free-form path) are commonly used strength training modes. Exercisers may need to alternate between types of equipment, depending on testing, training, rehabilitation, and/or the exercisers' goals. The purposes of this study were to compare muscle force production for SM and FWs using a 1 ...