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■Overview
The "Self-Defense Force Pull-ups App" is an application that supports Japanese Self-Defense Force style pull-ups. The whistle goes off once every three seconds. It is designed to be used by members of the Self-Defense Forces for training for the Self-Defense Forces Physical Fitness Test, so that it can be used for 'Pass'.
The SDF Physical Fitness Test allows you to pass only once. If the app records the use of the pass, it will be deducted from the total count. Therefore, you will be able to practice more closely to the real JSDF Physical Fitness Test.
The number of times you have done pull-ups and what level you are in the JSDF Physical Fitness Test will also be immediately displayed, so you can quickly determine your current level.
Pull-ups in JSDF Physical Fitness Test rules are one of the training exercises widely used in the Self-Defense Forces, as they are effective in strengthening arm and back muscles.
In this app, we have prepared videos and text explaining how to do pull-ups in the SDF style so that a wide range of people, from beginners to experts, can perform pull-ups in the SDF style.
Therefore, even those who do not know how to do pull-ups will be able to work on it after watching it.
In addition, the app has a function to record the number of pull-ups you have done in the past, and automatically displays what grade level you were in.
You can also easily share it to SNS, so you can train together with your friends and colleagues.
From beginners to advanced pull-ups, anyone can enjoy and train effectively with the SDF Pull-ups App. We hope you will use it to support your training at home or at the gym, and for training.
■How to do JSDF style pull-ups
1. grasp with forward hand
2. hand width is the same as shoulder width.
3. face straight ahead. Do not raise face.
4. chin above the bar.
5. fully extend elbows when lowering.
6. do not use recoil.
■feature
1. An app dedicated to JSDF pull-ups
2. There is a video explaining how to do JSDF pull-ups
3. Whistle sounds once every 3 seconds
4. Corresponds to "Pass" according to the JSDF pull-up Test
5. You can easily see what level you are at.
■Advantages of doing pull-ups
1. it is effective in strengthening arm and back muscles: SDF pull-ups are widely used in training to strengthen biceps and back muscles. By training these muscles, a stronger upper body can be obtained.
2. core training: Pull-ups are effective in strengthening not only the upper body, but also the abdominal, lower abdominal, and lower back muscles. This makes them an effective core training workout.
3. many variations: There are many variations of SDF pull-ups, not only frontal pull-ups, but also inverted pull-ups, one-handed pull-ups, pull-ups with weights, and so on. Combining these variations allows for a more multifaceted workout. 5.
4. mental training: Pull-ups are also known as a form of training for self-overcoming and mental strength. Long pull-ups and difficult variations of pull-ups are also effective for mental training.

■Use Cases
1. training support for Self-Defense Forces personnel
- With this app, you can create an environment that is similar to a real test of the Self-Defense Forces Physical Fitness Test.
2. training support for both beginners and advanced pull-ups
- Pull-ups are one of the most effective methods of muscle training, as they help build arm and back strength. This application provides videos and text explaining how to do pull-ups so that a wide range of users, from beginners to advanced users, can perform SDF-style pull-ups. In addition, you can track the results of your training by recording the number of pull-ups you have done in the past and displaying the number of pull-ups by grade.

■What is JSDF?
The Self-Defense Forces (JSDF) is an organization established to provide Japan with a defense force, and consists of three armed forces: the Ground Self-Defense Force, Maritime Self-Defense Force, and Air Self-Defense Force.