Background: The aging process is associated with a progressive deterioration of tissues and organs. Apoptotic cell death has been known as a possible causal factor in age-related pathologies. Therefore, this study was conducted to assess the effect of regular high-intensity interval exercise on some apoptotic factors in the brain tissue of aged female rats. Materials and Methods: In this exper...

We manipulated the baseline metabolic rate and body position to explore the effect of the interaction between recruitment of discrete sections of the muscle fiber pool and muscle O(2) delivery on pulmonary O(2) uptake (VO(2)) kinetics during cycle exercise. We hypothesized that phase II VO(2) kinetics (tau(p)) in the transition from moderate- to severe-intensity exercise would be significantly ...

BACKGROUND Recent research suggests that the Feeling Scale (FS) can be used as a method of exercise intensity regulation to maintain a positive affective response during exercise. However, research to date has been carried out in laboratories and is not representative of natural exercise environments. The purpose of this study was to evaluate whether sedentary women can self-regulate their exer...

QUESTION How has balance challenge intensity been reported in trials of balance exercise interventions? Are there any instruments designed to measure the intensity of balance challenge in balance training exercises? DESIGN Systematic review of randomised trials of balance training exercises. PARTICIPANTS Older adults, ie, the majority of subjects were aged over 55 years. INTERVENTION Bala...

Aerobic fitness, not merely physical activity, is associated with a reduced risk of cardiovascular disease. Vigorous intensity exercise has been shown to increase aerobic fitness more effectively than moderate intensity exercise, suggesting that the former may confer greater cardioprotective benefits. An electronic search of published studies using PubMed was conducted for 2 types of investigat...

The purpose of this study was to determine the changes of oxidative response and exercise-induced muscle damage after two different resistance exercise protocols. Whether training with low or high intensity resistance programs cause alterations in the activities of lipid peroxidation, nitric oxide (NOx), and creatine kinase (CK) activity in human plasma was investigated. Twenty untrained males ...

This study examined cardiovascular responses as a function of time following exercise in which participants were exposed to a laboratory stressor. Ninety (42 women) young (18-35 years old) nonsmoking normotensive participants engaged in 30 min of high and low intensity (75-80% and 50-55% VO(2) max) aerobic exercise and a sedentary control condition. Participants were randomly assigned to a labo...

BACKGROUND Exercise training is effective for improving physical fitness and physical function in people with type 2 diabetes. However, limited research has been conducted on the optimal exercise training intensity for this population. OBJECTIVE The primary study objective was to investigate the effects of moderate- versus high-intensity exercise training on physical fitness and physical func...

OBJECTIVES The aim of this study was to establish whether aerobic exercise training intensity produces different effect sizes for fitness, adherence, event rates, mortality rates, and hospitalization rates in patients with heart failure. BACKGROUND Intuitively, greater exercise intensity is considered to result in higher risk for serious events, but intensity may be the primary stimulus for p...

OBJECTIVE The purpose of this study was to determine the effect of different levels of exercise intensity on the timed finger-to-nose (FTN) task, a measure of upper limb coordination included in the Sport Concussion Assessment Tool (SCAT2). METHODS A three-group crossover randomised design was used to investigate changes in FTN times at three levels of exercise intensity; no exercise/rest (NE...