Sebastian Mansla
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Who Is Sebastian Mansla?

Sebastian “Seboss” Mansla is a sponsored athlete, fitness model, and German physique champion.

He’s a well-known person on social media who is dedicated to leading a healthy lifestyle and exploring the world as much as possible.

Short Career of Sebastian Mansla

Sebastian Mansla has dedicated his life to fitness and bodybuilding, but this wasn’t always the case. In actuality, boxing was what drew him in as a young adult.

He spent several years learning how to fight in his neighborhood boxing gym, but he loved the strength training aspect of the sport so much that he thought about giving up boxing and switching to weightlifting.

In a strange turn of events, Sebastian was hurt during the fight and had to stop. He started a strong strength training program right after and adopted the bodybuilder’s lifestyle after seeing this as a hidden potential.

Sebastian Mansla has continued to build his physique ever after his boxing injury and is now a successful athlete and physique champion. Leading fitness brands have given him high-profile international attention. Here is his account:

I believe that to be consistent, you must first have a strong desire for it.

Body Measurements of Sebastian Mansla

Full Name: Sebastian Mansla
ERA: 2010
PROFESSION: Physique Competitor, Sponsored Athlete, Fitness Model
ALIAS: Seboss
HEIGHT: 5’8″ (172.5cm)
WEIGHT: 165 to 175 lbs. (74.8 – 79.4kg)

“People who struggle for consistency don’t have realistic goals.”

Sebastian Mansla



  • 3rd Place  Men’s Physique  Arnold Classic Europe  2014
  • 1st Place  Men’s Physique  Loaded Cup  2015
  • 3rd Place  Men’s Physique  European Championship  2015


  • Sponsored Athlete
  • Fitness Model



Sebastian Mansla uses a variety of lifts throughout his workouts. He uses both compound lifts and isolating lifts, but favors compound lifts because they engage more muscle groups simultaneously and have positive effects on the circulatory system.

This is what Sebastian does each week:

Monday – chest, biceps, and abs

Bench press: 4 sets x 10 reps
Inclined bench press: 4 sets x 12 reps
Dumbbell pullover: 4 sets x 12 reps
Hammer Curl: 3 sets x 10 reps
Dumbbell rear lateral raise: 4 sets x 10 reps
Concentration Curl: 4 sets x 10 reps
Crunches: 3 sets x 20 reps
Hanging knee raise: x failure

 Tuesday – shoulders, triceps, and cardio

Wide grip pull-up: 3 sets x 20 reps
Machine lat pull down: 4 sets x 10 reps
Rows: 3 sets x 10 reps
Hyperextensions: 3 sets x 15 reps
Dumbbell front raise: 3 sets x 12 reps
Military Press: 4 sets x 10 reps
Sit-ups with weight: 3 sets x 25 reps
Sit-ups: x failure

 Wednesday – legs and triceps

Machine leg extension:  3 sets x 10reps
Machine leg curl: 4 sets x 12 reps
Squats: 3 sets x 10 reps
Calf press: 4 sets x 20 reps
Barbell lying tricep extension: 3 sets x 12 reps
Cable tricep overhead extension: 4 sets x 10 reps


Rest day

 Friday – chest, and arms

Bench press:  4 sets x 12 reps
Butterfly: 4 sets x 12 reps
Wide grip pull-up:  4 sets x 20 reps
Military press: 4 sets x 10 reps
Butterfly Reverse: 4 sets x 10 reps
Dips: 3 sets x 25 reps
Triceps push:  3 sets x 10 reps
Hammer Curl: 3 sets x 10 reps
Concentration Curl: 3 sets x 10 reps

 Saturday -legs and abs

Machine leg press: 3 sets x 10 reps
Machine leg extension: 3 sets x 10 reps
Squats: 3 sets x 10 reps
Hyperextension: 4 sets x 15 reps
Machine Crunch: 3 sets x 25 reps
Sit-ups: 3 sets x 50 reps


Rest day


Sebastian tries to finish two or three cardio workouts each week. Although he particularly enjoys doing HIIT, he also likes to mix up the treadmill and outdoor runs to “keep it fresh.”


Making A Healthful Diet

Sebastian is committed to eating as healthfully as he can while “respecting our world” by exclusively consuming organic food.

He attempts to maintain his trim all year long, but when the bulk is necessary to build muscle, he bulks extremely gradually and gently while “respecting his body” and metabolism.

“With nutrition, it’s a daily process,” explains Sebastian. Three months in advance, I plan everything.

Additionally, he schedules his meals far enough in advance that he doesn’t have to bother about preparing them the day of. He may fully commit himself to his training in this way.

Sebastian offers a variety of organic, lean meats. He consumes fish, game, poultry, beef, and other meats, always sourcing the best-quality, freshest produce he can.


  • Whey Protein
  • BCAAs
  • Beef Protein
  • Whey Protein Isolate
  • L-Glutamine

“Train hard, stay motivated and have realistic goals.”

Influences and Idols

Sebastian Mansla draws inspiration from a variety of legendary athletes. Floyd Mayweather and Mike Tyson have motivated him to continue on his fitness path because he still enjoys watching boxing.

They have encouraged him to accept the sacrifices necessary to pursue a career as a professional model.

Sebastian considers Greg Plitt to be the person who “stands for the actual fitness lifestyle” among his peers in the fitness business.

“Do not to lose focus, in the long run it will pay off.”

What can Sebastian Mansla teach us?

Sebastian Mansla has demonstrated the value of seeing the opportunities concealed inside adversity. Before being forced to alter course by an injury, he started a career in boxing.

Finding the road that leads to a new interest may be helpful if you have a setback in your quest for fitness.