Decades ago, guys used to do deadlifts by putting the bar behind them. This allowed for a very upright position, which meant a great degree of knee flexion had to happen in order to get into position. Due to the execution, the quads got a great deal of work.
To get the same effect, use the trap bar deadlift. To make it more of a quad movement, raise your heels:
Heels-Elevated Trap Bar Deadlift
Elevating your heels will automatically put you in a very upright position and create a mechanical position where the hips aren't as loaded as they would be with conventional deadlifts.
For those with bad knees or achy hips, this is a very joint-friendly exercise that can be used for both heavy progressive overload or high-rep death sets.
Dave Tate is the co-owner of Elite Fitness Systems and has been involved in the sport of powerlifting since 1982. A true testament to his skills rests in the 10,000 hours of personal training and strength consulting sessions he has performed with novice to elite athletes. Numerous clients have broken barriers they never thought possible through the use of maximal, dynamic and absolute strength development methods.
Joe DeFranco is a busy man. Right now he's training sixty high school athletes, thirty college athletes, and ten professionals. NFL agents keep his phone ringing all day long