Publications by authors named "Sharifah B Alhadad"
Purpose: Healthcare workers (HCWs) wearing personal protective equipment (PPE) experience physiological strain that can impair motor and psychological functions, potentially affecting patient care. We assessed the effects of heat exposure on maximal strength and risk-taking behavior among PPE-wearing HCWs and the efficacy of ice slurry to alleviate adverse effects.
Methods: Seventeen HCWS completed two experimental trials in a crossover design, consuming 5 g·kg -1 of body mass of ambient drink (AMB) or ice slurry (ICE) before donning PPE and undergoing 2 h of simulated decontamination exercise (wet-bulb globe temperature (WBGT): 25.
Article Synopsis
- Excessive heat exposure can cause hyperthermia, negatively impacting physical performance and cognitive functions, but the specific effects on brain physiology remain largely unknown.
- In a study with eleven healthy participants, heat stress was induced through exercise or warm water immersion, and their brain activity and temperatures were monitored using MRI techniques.
- The results showed that hyperthermia led to reduced brain activity in the motor cortex, decreased blood flow in brain regions, and impaired executive functions, although consuming blended ice helped manage temperature and reduced neural disruptions.
Objectives: Compare the effects of ice slurry ingestion at low and normal doses on endurance capacity and exertional heat stress-induced gastrointestinal perturbations.
Design: Randomised, cross-over design.
Methods: Twelve physically active males completed four treadmill running trials, ingesting ice slurry (ICE) or ambient drink (AMB) at 2 g·kg (Normal; N) or 1 g·kg (Low; L) doses every 15-min during exercise and 8 g·kg (N) or 4 g·kg (L) pre- and post-exercise.
Heat Stress and Thermal Perception amongst Healthcare Workers during the COVID-19 Pandemic in India and Singapore.
Int J Environ Res Public Health
November 2020
The need for healthcare workers (HCWs) to wear personal protective equipment (PPE) during the coronavirus disease 2019 (COVID-19) pandemic heightens their risk of thermal stress. We assessed the knowledge, attitudes, and practices of HCWs from India and Singapore regarding PPE usage and heat stress when performing treatment and care activities. One hundred sixty-five HCWs from India ( = 110) and Singapore ( = 55) participated in a survey.
View Article and Find Full Text PDFObjectives: We investigated the thermoregulatory responses to ice slurry ingestion during low- and moderate-intensity exercises with restrictive heat loss.
Design: Randomised, counterbalanced, cross-over design.
Methods: Following a familiarisation trial, ten physically active males exercised on a motorised treadmill at low-intensity (L; 40% VO) or moderate-intensity (M; 70% VO) for 75-min, in four randomised, counterbalanced trials.
A majority of high profile international sporting events, including the coming 2020 Tokyo Olympics, are held in warm and humid conditions. When exercising in the heat, the rapid rise of body core temperature ( ) often results in an impairment of exercise capacity and performance. As such, heat mitigation strategies such as aerobic fitness (AF), heat acclimation/acclimatization (HA), pre-exercise cooling (PC) and fluid ingestion (FI) can be introduced to counteract the debilitating effects of heat strain.
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