There are some devices for that. Eg: https://www.kickstarter.com/projects/gobackbone/backbone-the-smart-easy-way-to-a-healthy-back https://www.kickstarter.com/p

There are some devices for that. Eg: https://www.kickstarter.com/projects/gobackbone/backbone-the-smart-easy-way-to-a-healthy-back https://www.kickstarter.com/projects/gobackbone/backbone-the...