Developing a new device for continuously recording, in vivo, the excretion rate of sweat (perspiration) in humans.

Background: Some methodologies used for evaluating sweat production and antiperspirants are of a stationary aspect, that is, most often performed under warm (38°C) but resting conditions in a rather short period of time. The aim is to develop an electronic sensor apt at continuously recording sweat excretion, in vivo, during physical exercises, exposure to differently heated environments, or any other stimuli that may provoke sweat excretion.

Material And Methods: A sensor (20 cm ) is wrapped under a double-layered textile pad.

The electrically assisted bicycle: an alternative way to promote physical activity.

Objective: The aim of this study was to analyze the physiologic demand of pedaling on an electrically assisted bicycle to test its potential as an alternative method to perform exercise.

Design: Twenty participants (ten trained vs. ten untrained in endurance) novice in the electrically assisted bicycle performed the same cycling protocol composed of nine 5-min submaximal cycling periods without electrical support (NO), with a light support (S1), or with a high support (S4).

Characterisation of forces exerted by the entire hand during the power grip: effect of the handle diameter.

The objective of this study was to analyse the effect of the handle diameter on the grip forces exerted by the hand during a maximal power grip task. A handle ergometer, combining six instrumented beams and a pressure map, was used to determine the forces exerted by the palm side of the hand regrouping data from 10 anatomical sites (fingertips, phalanges, thumb, palm…). This methodology provided results giving new insight into the effect of the handle diameter on the forces exerted by the hand.

Acute and 2 days delayed effects of exhaustive stretch-shortening cycle exercise on barefoot walking and running patterns.

This study investigated the acute and 2 days delayed influences of exhaustive stretch-shortening cycle exercise (SSC) on barefoot walking and running gait patterns. The SSC exercise was performed on a sledge apparatus, on which the subjects (N = 10) repeated until exhaustion intermittent series of 25 bilateral submaximal rebounds. Maximal drop-jumps and submaximal barefoot treadmill walking and running were performed before (PRE) and after (POST) the exhaustive exercise and repeated 48 h (D2) later.