What is the main aim of the paper mentioned in the abstract?

• To investigate the effect of moisture on the structural behavior of rugby balls

• To examine the influence of skin hydration on rugby ball handling performance

• To analyze the impact of temperature on the physical properties of rugby balls

• To study the effect of wind on the travelling speed of rugby balls

According to the abstract, what factor may adversely affect exercise/sports performance in wet conditions?

• Increased grip due to moisture

• Reduced contact area between hand skin and sports equipment

• Adverse effects on skin properties and contact areas

• Improved skin moisture level

What does the experimental result suggest about the relationship between skin friction coefficient and hydration time?

• It remains constant regardless of hydration time

• It decreases linearly with increased hydration time

• It follows a "bell-shape" curve

• It increases exponentially with hydration time

What happens to the stratum corneum of the examined fingers due to the transmission of water in skin tissues?

• It becomes less thick

• It remains unchanged

• It decreases in size

• It increases in thickness

Tags

NGSS.MS-LS1-3

According to Williams (2019), by what percentage could humidity increase during the tournament, potentially causing players to use sweaty hands catching/passing damp balls?

• 50%

• 75%

• 85%

• 95%

What substance did the Scotland team use to soak rugby balls to mimic the slippery handling conditions?

• Baby oil

• Water

• Lubrication

• Shampoo

What did Tomlinson et al. (2009) find to have the highest values of friction coefficient, improving grip in wet conditions?

• Dry palms

• Damp palms

• Pimple patterns

• Less dense pimple patterns

What is the main reason that makes it difficult to keep the skin clean and dry, as mentioned in the text?

• The complexity of the skin's frictional behavior

• The adhesion mechanism of human skin

• The exposure of skin to different environments and substances

• The massive heat generated within human body cells during sports activities

According to Cua et al. (1990), what kind of relationship was reported between skin hydration and coefficient of skin friction for both young and old groups?

• A) A decreasing linear relationship

• B) A bell-curved relationship

• C) An increasing exponential relationship

• D) No significant relationship

What did the studies of Adams et al. (2007) and Tomlinson & Lewis et al. (2011) find regarding the relationship between skin hydration and the coefficient of friction?

• A) A linear relationship

• B) A bell-curved relationship

• C) An exponential relationship

• D) A random relationship