Background: Physical inactivity is recognized as a risk factor for coronary artery diseases. The aim of present study was to observe changes induced by isometric hand grip exercise on cardiovascular responses in young healthy trained female Volleyball and Basketball players. Methods: This study was carried out at Department of Physiology, J.S.S. Medical College and Hospital. Hundred and eighty ...

Peripheral chemoreflex inhibition with hyperoxia decreases sympathetic nerve traffic to muscle circulation [muscle sympathetic nerve activity (MSNA)]. Hyperoxia also decreases lactate production during exercise. However, hyperoxia markedly increases the activation of sensory endings in skeletal muscle in animal studies. We tested the hypothesis that hyperoxia increases the MSNA and mean blood p...

We tested the hypotheses that, in humans, changes in cardiac output (CO) and total peripheral vascular resistance (TPR) occurring in response to isometric handgrip exercise vary considerably among individuals and that those individual differences are related to differences in muscle metaboreflex and arterial baroreflex function. Thirty-nine healthy subjects performed a 1-min isometric handgrip ...

Background/Objective Evaluating hamstring strength by isokinetic dynamometry is limited by various practical issues such as time and cost. A video-based Nordic hamstring exercise is introduced as an alternative option. The aims of this study are to evaluate 1.) the between-session reliability and 2.) concurrent validity of the testing method compared to a standardized isokinetic dynamometry. ...

Background: Obesity, physical inactivity, and altered estrogen metabolism play integrated role contributing to the disease risk profiles of postmenopausal women (PMW). Aim: To study the correlation of body fat and blood lipids with autonomic nervous system activity in PM Indian women. Subjects and Methods: A total of 60 PM sedentary women without any gross systemic disease were selected as a co...

The aim of this study was to evaluate the effectiveness of an exercise training program on cardiorespiratory and musculoskeletal performance and health-related quality of life of patients who were recovering from severe acute respiratory syndrome (SARS). A 6-week supervised exercise training program was carried out in the physiotherapy department of a university teaching hospital. One hundred a...

blood pressure up to 200 mm Hg during exercise (2). Thus, changes observed in this recent study may not only be due to the increased preload but may be a consequent to the combined volume and pressure overload. I find it hard to agree with the investigators’ claim that as their athletes showed normal LV diastolic filling “it is reasonable to conclude that their LA enlargement represents uniquel...

BACKGROUND Sympathetic nervous activity contributes to the maintenance of muscle oxygenation. However, patients with chronic pain may suffer from autonomic dysfunction. Furthermore, insufficient muscle oxygenation is observed among workers with chronic neck and shoulder pain. The aim of our study was to investigate how muscle load tasks affect sympathetic nervous activity and changes in oxygena...

A new isometric contraction quadriceps-strengthening exercise was developed to restore the quadriceps strength lost after knee surgery more rapidly. This study evaluated the results of this new method. Patients were taught to perform the isometric quadriceps-strengthening exercise in the unaffected knee in the supine position, and then they performed it in the affected knee. First, patients wer...