I’m trying to develop a lean look, how can I achieve it through fitness?
Despite the biological make-up of your body, the way to achieve a lean look requires a combination of add training and aerobic exercise.

What is the best routine to include in strength-training?

The best strength-training routine without risking bulk includes:

A maximum of three sets of 12 to 15 repetitions
Focus working the major muscle groups (abdomen, legs and upper body,) will Select weights that differ according to the exercise
Use weights that cause moderate muscle fatigue by the end of the second or third set.

Do women experience bulky results from strength training?

No, if the above regimen is followed, leaner and fitter results should be the outcome.

Why are women unable to develop muscle mass like men?
Because women do not have the appropriate genetic makeup that men do (in example testosterone) they are unable to develop muscle mass like men

What are the best strength training and bodybuilding exercises to perform for the enhancement of muscle mass?

Ideal exercises and bodybuilding tactics to augment muscle mass include the following:
• Abdominal crunches
• Body squats (without weights)
• One-arm rows (leaning over a bench using a dumbbell); seated lat pull down
• Cable weight machines
• Sit-ups
• Pull-ups
• Aerobics should be alternated between strength training

Precisely, how often should I include cardiovascular exercise activity in my training program?

Conceptually, you should perform cardiovascular activity between three to five times per week from 30 to 60 minutes. The intensity level should be from medium to hard. Strength and resistance training should be alternated either twice or thrice a week.