Exxentric LegFlexx Manual de usuario

LegFlexx Manual

Exxentric

LegFlexx Manual

Version 1.0.0 | 2022-04-20

Exxentric AB

Karlsbodavägen 39

168 67 Bromma

Sweden

t: +46–8–121 485 70

e: [email protected]

4LegFlexx Manual v1.0.0 Warning

During use

Personal injuries may occur if the relevant precautions are not observed.

• Work out at a submaximal** intensity until you are familiar with the equipment.

• Keep away from moving and/or rotating parts.

• Keep hands on side handles during exercise.

• Never adjust the drive belt when the flywheel spins.

• Never stop a spinning flywheel with your bare hand or bare foot as it may cause friction burns.

• Do not let the moving arm (swing beam) hit the LegFlexx, absorb the eccentric load before it hits the foam

bumper.

• If you feel dizzy or experience pain, stop exercising immediately.

• Never get up from the LegFlexx while the flywheels are moving. Make sure the flywheels have come to a

complete stop before you end the exercise and step off.

• Exercising at maximum intensity may cause temporary staggering and uncontrolled body movements due to

fatigue. Exercise caution to prevent falling.

• Exxentric takes no responsibility for any injuries that may occur while using this product.

For Your Safety

Please read and understand the user manual and warning labels prior to use.

• Inspect the machine including the drive belt before use. Damaged or worn parts and warning labels must be

replaced. See user manual for how to change and cut the drive belt. Do not modify the machine or repair it

with non OEM parts.

• Always place the LegFlexx upright on level ground or on a floor surface.

• When performing assisted overload exercises the machine should be fixed to the ground.

• Flywheels may get slippery when wet. When lifting flywheels, use a secure two-handed grip.

• The machine and accessories are intended for strength training only. Do not use it in any other way.

• The LegFlexx can deliver a supramaximal* workload. Do not exercise at an intensity above your physical

capacity.

• The device is not suitable for children or animals.

WARNING

*) Supramaximal means higher than maximal. This means higher loads than your muscles can produce

themselves in a shortening (concentric) action.

**) Submaximal means below maximal. In this case, we would recommend below 75% of maximum intensity.

5LegFlexx Manual v1.0.0 Contents

Like any exercise program, it is important that users are capable

of performing exercises on this exercise equipment and have

verified this with their personal physician.

This Manual describes the Exxentric Leg Flexion Machine, or

LegFlexx, which is a Flywheel Training Device. It will also guide

you through its use and how to maintain the device.

Always check exxentric.com/support for latest info and manuals.

CONTENTS

Caution!

Specifications 6

Introduction 7

Features 10

Usage 12

Flywheel Workout Zones 18

Tool Kit Overview 19

LegFlexx Maintenance 20

kMeter 22

Support 23

Apps 24

Warranty 25

6LegFlexx Manual v1.0.0 Specifications

SPECIFICATIONS

LegFlexx

Minimum dimensions (bounding box)

Width 80 cm (31.5”)

Depth 95 cm (37.4”)

Height 115 cm (45.3”)

Space required during use

Width 100 cm (39.4”)

Depth 145 cm (57.1”)

Height 115 cm (45.3”)

Materials

Frame Steel

Flywheel Steel

Color Space Grey

Features

kMeter II built-in Yes

Quick change flywheel Yes

No. of flywheels mounted 1 - 4

Inertia range kgm0.005 - 0.28

Inertia factor (min to max)* x56

Flywheel options (kgm)

XS - 0.005 Yes

S - 0.010 Yes

M - 0.025 Yes

L - 0.050 Yes

XL - 0.070 Yes

Weight of machine 103 kg (227 lbs)

Maximum weight allowed on LegFlexx 350 kg (772 lbs)

Included with the LegFlexx: Tool bag, printed manual, and a built-in kMeter II.

Inertia factor means the highest possible inertia divided by the lowest possible inertia. With the advanced

flywheel knob it is possible to reach an inertia factor of x84 and an inertia range of 0.005 to 0.420 kgm2.

7LegFlexx Manual v1.0.0 Introduction

INTRODUCTION

LegFlexx - Right Overview

LegFlexx - Left Overview

1. Hand protection

2. Swing beam

3. Drive belt length adjuster

4. Pull pin knob

5. Belt stop

6. Flanges

7. Drive belt

8. Swing beam pulley

1. Seat

2. Backrest

3. Seat belt

4. Support handle

5. Pull-tag to adjust backrest

6. Flywheel protection

7. Plugs - remove to attach to floor

8. Shaft cover

8LegFlexx Manual v1.0.0 Introduction

4 1

LegFlexx - Front Overview

LegFlexx - Back Overview

1. Adjustable thigh pads

2. Pull pin knob

3. Stop screws to adjust bushings

4. QR code

5. Adjustable calf pads

6. Wheels

7. Flywheel stop disc

8. Flywheel knob

1. Mobile holder

2. Cylindrical housing

3. Rubber bumpers

4. Warning label

5. kMeter II - found under shaft cover

6. Moving handles

9LegFlexx Manual v1.0.0 Introduction

What is the LegFlexx?

How Does it Work?

The Flywheel

The LegFlexx is designed for seated leg curl training.

It is a flywheel exercise device that uses the moment of inertia to

provide a high and variable resistance in both the concentric and

eccentric* movements of the user.

The LegFlexx has a drive belt wound around the end of a

shaft located under the seat. Different combinations of

flywheels are mounted onto the other end of the shaft.

After taking position and making personal adjustments to the

LegFlexx, the user curls to accelerate the flywheel, and then resists

to decelerate the flywheel as the belt winds in the other direction.

There are five differently sized flywheels, with inertia 0.005,

0.010, 0.025, 0.050, and 0.070 kgm2.

Up to four flywheels of varying sizes can be mounted onto the

LegFlexx, giving it a range of inertia between 0.005 and 0.280 kgm2.

Do not mount more than the maximum capacity of flywheels.

To mount or change the flywheel, release the flywheel knob by pulling

the pull pin knob. Then remove the flywheel knob and change the

flywheel(s). Secure them by reinserting the flywheel knob until it

“clicks”.

Tip! If the black pull pin knob is hard to pull out you can push

the flywheel knob in whilst pulling the pull pin knob out.

Flywheel Knob

Pull Pin Knob

Flywheel Protection We recommend having the Flywheel Protection attached

to the LegFlexx, in order to protect the user from injury.

Flywheel Protection

*) Concentric muscle action is when the muscle is being shortened

during action. An eccentric muscle action is when the muscle is

being elongated during action.

10LegFlexx Manual v1.0.0 Features

FEATURES

Principle of the LegFlexx

Resistance

Eccentric Loading

The LegFlexx is a part of Exxentric’s Line of Flywheel

Training Equipment. The muscles exercised are mainly the

hamstrings.

The principle is that you, through muscular force, accelerate and

decelerate a flywheel (or flywheels). Exercises with high intensity

and forces stimulate the muscles to increase in size and the

nervous system to increase activation of the muscles. These

effects combined increase strength over time.

The resistance is variable and unlimited.

The flywheel has a specified inertia and there is no upper limit to

how much kinetic energy you can produce in the flywheel motion.

You can think of the flywheel as a weight that weighs more if you

put more effort into lifting it. Resistance is variable so if you pull less,

the flywheel will resist less.

Every repetition in a maximal set is maximal instead of only the

last one which is the case with traditional weights. This results in a

higher training efficiency, earlier onset of strength increase, and

also hypertrophy*.

The potentially higher exertion on the LegFlexx may lead to a

need for longer resting periods between sessions to fully recover.

The LegFlexx provides for increased eccentric workloads.

The skeletal muscles can produce more force in the eccentric,

or negative phase. This is difficult to take advantage of with

traditional weights, which always weigh the same.

If you accelerate the flywheel during the concentric, or flexion,

phase and then decelerate in a shorter amount of time, you will

have to produce a higher eccentric force. This will be similar to

lifting weights that would normally be too heavy unless assisted

by a training partner. Check out the Exxentric Online Academy for

more information on eccentric overload.

https://academy.exxentric.com

*) Hypertrophy refers to an increase in muscle size achieved

through exercise.

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