Final answer:
To achieve effective strength training, a progressively increased training stimulus must be applied as the body adapts to encourage muscle growth and adaptation. This concept, known as treppe, involves progressively heavier loads being lifted to increase muscle size. The responsiveness to stimuli also affects sensory perception and respiratory control in the body.
Step-by-step explanation:
A progressively increased training stimulus must be applied as the body adapts to the current stimulus to achieve effective strength training. An important concept here is treppe, which is where muscle tension increases stepwise, resembling a staircase, and occurs when the muscles adapt to a stimulus and then require a greater one for further improvement. In practice, this means if you lift the same amount of weight every day, your muscles will not get any stronger beyond a certain point. To increase muscle size, the amount of weight you lift must be progressively increased. This makes it more challenging for muscles to move the load, thereby fostering adaptation and growth, requiring an even heavier load for further progress.
In physiology, the responsiveness to a stimulus can also depend on the duration and frequency. A stimulus of longer durations might lead to more lasting effects, such as depolarization, but not necessarily greater strength unless the intensity is also increased. This principle is closely related to how our sensory systems encode stimulus intensity through the rate and quantity of action potentials, and how the CNS integrates this sensory information to produce an appropriate response.
Overall, stimulus intensity and its progressive increase play a key role in various bodily systems, including those responsible for strength training adaptations, sensory perceptions, and respiratory control, where increased stimuli can result in forced breathing as part of the body's response.