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HMS, TIP 2024 HSC 20 MC

Which row of the table correctly identifies the physiological adaptations that are the result of training slow twitch muscle fibres?

\begin{align*}
\begin{array}{l}
\rule{0pt}{2.5ex} \ \rule[-1ex]{0pt}{0pt}& \\
\rule{0pt}{2.5ex}\textbf{A.}\rule[-1ex]{0pt}{0pt}\\
\rule{0pt}{2.5ex}\textbf{B.}\rule[-1ex]{0pt}{0pt}\\
\rule{0pt}{2.5ex}\textbf{C.}\rule[-1ex]{0pt}{0pt}\\
\rule{0pt}{2.5ex}\textbf{D.}\rule[-1ex]{0pt}{0pt}\\
\end{array}
\begin{array}{|c|c|}
\hline
\rule{0pt}{2.5ex}\textit{Muscle Size}\rule[-1ex]{0pt}{0pt}& \textit{Capillary Supply} & \textit{Rate of fatigue} & \textit{Oxidative capacity} \\
\hline
\rule{0pt}{2.5ex}\text{Small}\rule[-1ex]{0pt}{0pt}&\text{High}&\text{Low}&\text{High}\\
\hline
\rule{0pt}{2.5ex}\text{Small}\rule[-1ex]{0pt}{0pt}&\text{Low}&\text{High}&\text{High}\\
\hline
\rule{0pt}{2.5ex}\text{choice}\rule[-1ex]{0pt}{0pt}&\text{Low}&\text{High}&\text{Low}\\
\hline
\rule{0pt}{2.5ex}\text{choice}\rule[-1ex]{0pt}{0pt}&\text{High}&\text{Low}&\text{Low}\\
\hline
\end{array}
\end{align*}

Show Answers Only

\(A\)

Show Worked Solution
  • A is correct: Slow twitch muscle fibres have small size, high capillary supply, low rate of fatigue and high oxidative capacity, making them ideal for endurance activities.

Other Options:

  • B is incorrect: Slow twitch fibres have high (not low) capillary supply.
  • C is incorrect: Slow twitch fibres have small (not large) size, low (not high) fatigue rate, and high (not low) oxidative capacity.
  • D is incorrect: Slow twitch fibres have small (not large) size and high (not low) oxidative capacity.

Filed Under: Physiological adaptations and improved performance Tagged With: Band 4, smc-5461-30-Muscular adaptations

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