Answer:
At least two days a week.
Explanation:
The frequency of strength training should be at least 2 days a week, lasting at least 6 weeks.
In this case, weight training is specific because increases (gains) in muscle strength and endurance will greatly improve the performance of certain tasks (skills) when the training program consists of exercises that include muscle groups and stimulate the movement patterns used during this task.
Strength training involves flexibility, or range of motion around a joint, and is related to health and, to some extent, athletic performance.