Here, Fitzgerald shares some common weight-lifting mistakes to avoid:

→Going too heavy: The weight room is no place for ego, so check it at the door. “Not every lift has to be super heavy and super hard. Don’t risk injury trying to be a hero in the weight room,” he says.

→Lifting too light: On the other hand, if you’re always lifting low weight for high reps, you’re building endurance in the weight room. That’s a fine place to start if you’re new to weight training, but you want to work toward going heavier for fewer reps. “Runners work on endurance all the time with every run. The goal with weight training needs to be strength and power,” Fitzgerald says.

→Focusing on specific body parts: “Runners don’t need to lift that often, for as long, nor isolate individual muscles. You can lift full-body twice per week for 30 to 60 minutes,” Fitzgerald says. You’ll get everything you need with that setup.

9 Essential Weight-Training Exercises for Runners

Below are nine weight-training exercises that are the most beneficial for runners according to Holder and Fitzgerald. To build your own workout, you can choose one from each area (upper body, lower body, and core) and create a circuit of three moves. Each move is demonstrated by Christi Marraccini, instructor and head of production at NEO U.

For a quick cheat sheet of moves, scroll to the bottom of this article and pin, share, or screenshot the workout.

Upper Body

1. Push-Up

Works chest and core muscles

How to do it:

1. Start in high plank, wrists under shoulders, core engaged so body forms a straight line from head to heels.
2. Bend elbows to lower chest to floor.
3. Press back up to plank. Keep core tight; don’t let hips dip or lift.
4. Do 3 sets of 6-15 reps.

Beginners: Use your own body weight
Advanced: Add a weighted plate (15-35 pounds) on back

2. Bent-Over Row

Works back and core muscles

How to do it:

1. Start standing, soft bend in knees, with a dumbbell in each hand, palms facing each other. Hinge at the hips, sending butt straight back, so arms hang perpendicular to floor. Keep back flat, core engaged. This is the starting position.
2. Pull weights up to ribs, drawing shoulder blades back and down, keeping elbows close to sides.
3. Lower weights back down, extending arms, returning to starting position.
4. Repeat for 3 sets of 6-12 reps.

Beginners: Use your own body weight
Advanced: Use 10- to 25-pound dumbbells

3. Reverse Fly

Works back of shoulder and rhomboid (mid back) muscles

How to do it:

1. Start standing with feet shoulder-width apart and dumbbells in hand. Hinge at hips by sending butt straight back, so that torso is nearly parallel to floor, knees softly bent. Let the dumbbells hang straight down, palms facing each other. This is the starting position.
2. Keeping back flat and core engaged, lift arms up and out to sides until they’re in line with shoulders. Upper body will form a “T,” with a slight bend in elbows.
3. Lower weights back down with control to return to starting position.
4. Repeat for 3 sets of 6-12 reps.

Beginners: Use 5-pound dumbbells
Advanced: Use 10- to 15-pound dumbbells

Core

4. Plank

Works all muscles of the core, especially the transverse abdominis, and shoulders

How to do it:

1. Place hands directly under shoulders on the floor and step feet back, placing them hip-width apart to hit a full plank. Engage core and squeeze glutes to stabilize body. Keep neck and spine neutral. You should form a straight line from head to heels.
2. Hold for 30-60 seconds.
3. Relax, then repeat for 3 sets.

Beginners: Use body weight
Advanced: Add a weighted plate (10-25 pounds) on your back

5. Leg Raise

Works abdominal muscles, particularly the rectus abdominis

How to do it:

1. Lie faceup on a mat with hands next to hips for support. Lift legs straight up so body forms an “L.”
2. Engage core and slowly lower legs until feet hover just above mat.
3. Slowly raise legs back up.
4. Repeat for 3 sets of 8-12 reps.

Beginners: Use body weight
Advanced: Add a 10- to 25-pound medicine ball between ankles

6. Single-Side Weighted Sit-Up

Works core muscles, including obliques

How to do it:

1. Lie faceup on mat with feet flat on floor and a dumbbell in right hand extended straight up so that wrist is directly over shoulder.
2. Engage core to lift chest and dumbbell up toward ceiling, coming into a full sit-up.
3. Keeping arm straight, slowly lower back down to floor.
4. Repeat for 8-12 reps. Then switch to other side. That’s one set.
5. Complete 3 sets.

Beginners: Use 5-pound dumbbell
Advanced: Use 15-pound+ dumbbell

Lower Body

7. Deadlift

Works hamstrings, glutes, back, and core

How to do it:

1. Stand with a soft bend in knees and feet hip-width apart. Hold a dumbbell in each hand down in front of you, palms facing you.
2. Hinge at hips by sending glutes straight back, with back flat, and core engaged, weights staying close to legs. Focus on just hinging at the hips, not squatting by maintaining slight bend in knees.
3. When torso is nearly parallel to the floor, drive through feet and engage glutes to stand back up.
4. Repeat for 3 sets of 6-12 reps.
   

Beginners: Use 15- to 25-pound weights (make sure you master the hinge motion first)
Advanced: Use 25+ pound weights or a weighted barbell

8. Lunge

Works quads, thighs, and glute muscles

How to do it:

1. Stand tall holding a dumbbell in each hand, down at sides.
2. Take a big step forward with right leg and bend both knees until right thigh is parallel to floor and right shin is vertical, left knee hovers just off the floor.
3. Press into right foot to stand up, stepping leg back.
4. Repeat on right leg for 6-12 reps. Then switch sides. That’s one set.
5. Complete 3 sets.

Beginners: Use 10- to 25-pound dumbbells (or bodyweight if you haven’t done a lunge before)
Advanced: Use 25-pound+ dumbbells

9. Single-Leg Glute Bridge

Works glutes and hamstrings

How to do it:

1. Lie faceup on mat with feet flat and knees bent. Lift right leg up, knees in line.
2. Press into left foot to lift hips off mat.
3. Slowly lower back down.
4. Repeat for 8-15 reps. Then switch sides. That’s one set.
5. Complete 2 sets.

Beginners: Use bodyweight
Advanced: Add a 10-pound weighted plate or dumbbell to hips, hold in place with hands

Images: Julia Hembree Smith