Final answer:
A circuit weight training program is designed to simultaneously improve muscle strength, endurance, flexibility, and cardiovascular fitness. The personal trainer assesses clients' progress in a 90-day weight lifting program by recording actual weights lifted to compare against expectations, facilitating tailored adjustments to the program.
Step-by-step explanation:
A circuit weight training program is designed to meet various fitness needs by combining both strength training and aerobic exercise.
This type of program includes a series of exercises or 'stations' that a person completes in succession.
Each exercise is performed for a certain number of repetitions or for a set time frame before moving on to the next station.
The objective of circuit training is to increase muscle strength, endurance, flexibility, and cardiovascular fitness.
For a personal trainer designing a 90-day weight lifting program, the focus is on progressively increasing the maximum weight lifted each week to meet the clients' strength growth expectations.
By recording the actual maximum weights lifted, the trainer can assess the efficacy of the program and the clients' progress towards their fitness goals.
This data helps in understanding how well the expectations match the observed outcomes, allowing for adjustments in the training regimen to better suit individual needs.