What is the Average Sit-ups for a 15-Year-old?

The Average Sit-ups for a 15-year-old are anywhere from 12 to 16 reps. However, it varies from person to person because not everyone is the same. For example, some 15-year-old can easily do 16 sit-ups and some may struggle with 12 sit-ups. One of the biggest concerns of youngsters and parents is getting themselves or their kids “Injured”. Therefore, a focus on form and Reps/Sets.

So How much Should a 15-year-old Sit-ups in a day?

It all comes down to the level of core strength you got.

The average Sit-ups a day for a 15-year-old boy is 12-16 reps for 3 sets which are 36-48 reps a day.

The average Sit-ups a day for a 15-year-old girl is 10-12 reps for 3 sets which are 24-30 reps a day.

If you’re are doing more than the average reps in your category then it shows you are proactive and fit. However, If you’re struggling with average reps then don’t worry. Practice makes it perfect. The more you practice regularly the better you will get and the more core strength you will it.

Average Sit-ups for a 15-year-old Boy Chart

CategoryAverage Reps
Active12-16
Non-Active3-8

Average Sit-ups for a 15-year-old Girl Chart

CategoryAverage Reps
Active10-12
Non-Active2-6

Sit-ups is a bodyweight exercise for the abdominal which requires lifting the torso while lying on the back. It’s best to know which muscle is being targeted, which are:

  • Rectus Abdominis
  • Internal and External Obliques
  • Iliopsoas
  • Rectus Femoris

(Check the targeted muscles in more detail)

Benefits of Sit-Ups

Core Strength

Most of the exercises require core strength. By doing sit-ups you will be strengthening and toning your core and this will lead to less back and core injury in future. If you want a good strong core then sit-ups are the exercise that will help you achieve that.

Better balance and stability

Performing sit-ups will help increase your balance and stability. With sit-ups, your pelvis, lower back and hip muscles work together with abdominal muscles to increase your balance. This is can be very beneficial as you’re less likely to get injured in the future and will have a better balance.

Improved muscle mass

A 2016 study, shows that sits helps increase the muscle mass in abdominal and hips muscles. If you’re planning to build muscle mass on your abs and lower back then adding sit-ups to your workout would be beneficial.

Increased flexibility

Sit-ups help with flexibility as it works on the hips and back muscle. This increases mobility and relieves tightness and tension. Furthermore, this leads to reduce stress, increases concentration and boosts energy levels.

Improved posture

Sit-ups help improve the posture as your core gets stronger your hips, spine and shoulders are easily aligned and that helps with posture.

Read more benefits in more detail

How to do more reps for sit-ups?

The form is very important, you need to ensure you perform sit-ups correctly. You can check below how to do sit-ups with the correct form. Some tips are to avoid pulling your neck or crunching too high.

Create workout plan

In order to do more reps for sit-ups, you need to track how many sit-ups can do and add them to your workout plan or create one. It’s best to do sits ups every other day so take one day’s break for recovery (such as Monday, Wednesday, and Friday).

Example

  1. Warm-up with a 5-minute slow jog.
  2. Exercise (lunges)
  3. Exercise (Pull-ups)
  4. Exercise (Sit-ups) – Choose your Target (20 reps) and perform the sit-ups for 3 sets with a 30-second break between each set.
  5. Exercise (Deadlifts)
  6. End your workout with a slow prone back extension to release tension from the core.

Adding Resistance

Adding resistance will make your sit-ups harder but more effective. The best way to do it is by using an incline sit-up bench. This will add intensity to sit-ups and help gain core strength a lot quicker.

Adding Variation

In order to perform more sit-ups reps then you make sure your overall core strength is stronger and increasing endurance. The best way to do this is by performing different abdominal exercises as it will help build good core strength and stability.

Some of the exercises you can perform are:

  • Captain’s chair
  • V-sit
  • Plank hold
  • Crunches
  • Leg raises

Get Enough Rest and Recovery

After performing a number of abdominal exercises you need to ensure that you let one day for your muscle to recover. This is because your ab muscles will be fatigued, in order for them to get stronger and increase in endurance, so make sure to rest.

How to do a sit-up with the correct form?

STEP 1 – Lie on your back with a slight bend to your knees. Arms bent to the elbows and hands touching your head by the ears.

STEP 2 –  Lie on the floor facing the ceiling with a slight bend in your knees and arms bent at the elbows and hands lightly touching your head by the ears.
Engage your core and lift your upper body so your right elbow touches your left knee.

STEP 3 – Return to the start position then lift your upper body so your left elbow touches your right knee. This is the starting position.

STEP 4 – Return to the start position.

Sit-ups vs Crunches

Sit-ups and crunches are both abdominal exercises. If you want to increase your core strength then it’s recommended to add both of the exercises to your workout. The main difference is the range of motion.

With sit-ups, there is more range of motion as you have to move all the up to your knees. Compared to Crunches its less range of motion. There is more muscle activated with sit-ups compared to crunches.