Question

ginny started using the incline program on the treadmill during her workouts. she noticed that at 5 percent incline she felt the burn in her calf muscles while at -5 percent incline her shins tightened. what type of reflex was triggered by her actions?

tendon reflex

crossed - extensor reflex

postural reflex

withdrawal reflex

Explanation:

• Tendon reflex: Involves a single synapse between sensory and motor neurons in response to tendon stretch. Not relevant here as the scenario is about postural adjustments.
• Crossed - extensor reflex: Occurs when one limb is withdrawn (e.g., from pain) and the opposite limb is extended. Not applicable to the treadmill incline - related muscle responses.
• Postural reflex: Helps maintain balance and posture. When the treadmill incline changes (5% and - 5%), the body adjusts muscle tension (calf burn, shin tightening) to maintain balance, which is a postural adjustment.
• Withdrawal reflex: Removes a body part from a harmful stimulus (e.g., touching a hot object). Not related to treadmill incline - induced muscle changes.

Answer:

postural reflex