Forward Lunge Walk
An excellent exercise for both your quadriceps hamstring - buttocks and inner thigh (adductor) muscles.
Stand
tall with your feet shoulder width apart, with suitably weighted dumbbells
by your sides, keeping your arms straight and vertical throughout the movement.
Stride forward with one leg, so that your thigh is close to parallel to the floor, with your knee over your toes, keeping your back straight and head up throughout the movement.
Your rear heel should naturally rise off the floor, with that knee resting close to the floor when you extend forward.
Keeping your abdominal muscle contracted, push down on your front foot, taking your rear foot off the floor, and extended out to your front, changing the position of your legs over, so your previous front leg, now has its knee close to the floor with its heel raised of the floor.
Repeat this movement
for desired amount of reps going forward. You may decide to make the exercise
easier by taking the rear foot, and placing it next to your front foot, standing
tall, prior to striding forward, rather than taking your rear foot all the
way through.