Final answer:
To evaluate if a client should raise resistance training exercise intensity, observe if they can perform repetitions without significant fatigue, indicating that the weight is too light. Increasing the intensity through progressive overload is crucial for muscle growth. Monitoring maximum weight lifts periodically confirms if the client is progressing.
Step-by-step explanation:
A simple way to evaluate if your client should raise his/her resistance training exercise intensity can be done by observing the client's capability to complete repetitions of a resistance exercise without significant fatigue. If the client can easily perform this number of reps, it may indicate that the weight or resistance is too light, and thus the intensity should be increased. The rate at which the client is able to move the load and the perceived effort can also serve as indicators. If the weight does not challenge the client's muscles sufficiently, leading to a relatively quick and effortless performance, it's a sign that the load may need to be increased to continue muscle growth and adaptation.
In reference to the concept presented in the provided study context, for effective strength training, it's essential to periodically increase the intensity of the workout regime. This increases the challenge for the muscles, leading to muscle adaptation and growth. A method like progressively increasing weight loads, often referred to as progressive overload, is fundamental in strength training protocols to ensure ongoing muscle development. The client's progression can be tracked by monitoring the changes in the maximum weights lifted over a set period, as in the example of a strength development class or a personal trainer's 90-day program. If the weight lifted remains the same over time without increase, it's an indicator that the intensity needs to be raised.