Full Text Journal Articles by
Author Kai Heinrich

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Spinal and Pelvic Kinematics During Prolonged Rowing on an Ergometer vs. Indoor Tank Rowing.

Katharina Trompeter, Jeronimo Weerts, Daniela Fett, Ali Firouzabadi, Kai Heinrich, Hendrik Schmidt, Gert-Peter Brüggemann, Petra Platen,

<h4>Abstract</h4>Trompeter, K, Weerts, J, Fett, D, Firouzabadi, A, Heinrich, K, Schmidt, H, Brüggemann, GP, and Platen, P. Spinal and pelvic kinematics during prolonged rowing on an ergometer vs. indoor tank rowing. J Strength Cond Res 35(9): 2622-2628, 2021-This investigation aimed to compare spinopelvic kinematics during rowing on an ergometer vs. ... Read more >>

J Strength Cond Res (Journal of strength and conditioning research)
[2021, 35(9):2622-2628]

Cited: 0 times

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Assessment of work-related hand and elbow workloads using measurement-based TLV for HAL.

David H Seidel, Kai Heinrich, Ingo Hermanns-Truxius, Rolf P Ellegast, Lope H Barrero, Monika A Rieger, Benjamin Steinhilber, Britta Weber,

Direct-measurement-based methods for assessing workloads of the hand or elbow in the field are rare. Aim of the study was to develop such a method based on the Threshold Limit Value for Hand Activity Level (TLV for HAL). Hence, HAL was quantified using kinematic data (mean power frequencies, angular velocities ... Read more >>

Appl Ergon (Applied ergonomics)
[2021, 92:103310]

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The use of exoskeletons in the occupational context for primary, secondary, and tertiary prevention of work-related musculoskeletal complaints.

Benjamin Steinhilber, Tessy Luger, Peter Schwenkreis, Stefan Middeldorf, Hartmut Bork, Bernhard Mann, Alexander von Glinski, Thomas A Schildhauer, Stephan Weiler, Martin Schmauder, Kai Heinrich, Gabriele Winter, Gerhard Schnalke, Peter Frener, Ralf Schick, Sascha Wischniewski, Matthias Jäger,

OCCUPATIONAL APPLICATIONS This guideline includes 20 recommendations and four key statements that achieved consensus or strong consensus regarding the application of exoskeletons in the workplace for the prevention of musculoskeletal complaints and diseases, the general use and implementation of exoskeletons, and recommendations for risk assessment. The guideline is intended for ... Read more >>

IISE Trans Occup Ergon Hum Factors (IISE transactions on occupational ergonomics and human factors)
[2020, 8(3):132-144]

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Predicting the knee adduction moment after high tibial osteotomy in patients with medial knee osteoarthritis using dynamic simulations.

Cynthia Fantini Pagani, Johannes Funken, Kai Heinrich, Andree Ellermann, Rüdiger Schmidt-Wiethoff, Wolfgang Potthast,

BACKGROUND:High tibial osteotomy (HTO) is a surgical treatment for knee osteoarthritis, which alters the load distribution in the tibiofemoral joint. To date, all surgical planning methods are based on radiographs, which do not consider the loading characteristics during ambulation. This study aimed to develop and validate a simulation tool for ... Read more >>

Knee (The Knee)
[2020, 27(1):61-70]

Cited: 0 times

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Three-Dimensional Takeoff Step Kinetics of Long Jumpers with and without a Transtibial Amputation.

Johannes Funken, Steffen Willwacher, Kai Heinrich, Ralf MüLLER, Hiroaki Hobara, Alena M Grabowski, Wolfgang Potthast,

<h4>Purpose</h4>The loads applied on the musculoskeletal system during the long jump takeoff step are not well established for nonamputee athletes or athletes with a lower extremity amputation. Information on joint loading and potential injury mechanisms is important for improving training or rehabilitation protocols, prosthetic design, and the general understanding of ... Read more >>

Med Sci Sports Exerc (Medicine and science in sports and exercise)
[2019, 51(4):716-725]

Cited: 2 times

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Long jumpers with and without a transtibial amputation have different three-dimensional centre of mass and joint take-off step kinematics.

Johannes Funken, Steffen Willwacher, Kai Heinrich, Ralf Müller, Hiroaki Hobara, Alena M Grabowski, Wolfgang Potthast,

Long jumpers with below the knee amputation (BKA) have achieved remarkable performances, yet the underlying biomechanics resulting in these jump distances are unknown. We measured three-dimensional motion and used multi-segment modelling to quantify and compare the centre of mass (COM) and joint kinematics of three long jumpers with BKA and ... Read more >>

R Soc Open Sci (Royal Society open science)
[2019, 6(4):190107]

Cited: 1 time

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First and Second Step Characteristics of Amputee and Able-Bodied Sprinters.

Gerda Strutzenberger, Adam Brazil, Timothy Exell, Hans von Lieres Und Wilkau, John D Davies, Steffen Willwacher, Johannes Funken, Ralf Müller, Kai Heinrich, Hermann Schwameder, Wolfgang Potthast, Gareth Irwin,

In sprint events, the first 2 steps are used to accelerate the center of mass horizontally and vertically. Amputee athletes cannot actively generate energy with their running-specific prosthesis. It is likely that sprint acceleration mechanics, including step asymmetry, are altered compared with able-bodied athletes.To investigate spatiotemporal and kinetic variables of ... Read more >>

Int J Sports Physiol Perform (International journal of sports physiology and performance)
[2018, 13(7):874-881]

Cited: 1 time

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Leg amputation side determines performance in curve sprinting: a case study on a Paralympic medalist.

Johannes Funken, Kai Heinrich, Steffen Willwacher, Ralf Müller, Jonas Böcker, Hiroaki Hobara, Gert-Peter Brüggemann, Wolfgang Potthast,

The lower limb kinetics of curve sprinting in amputees are not well described in the literature, particularly with respect to the effect of the side of amputation. This is an issue due to the importance of the knowledge for prosthetic design and classification of athletes. Thus, the aim of this ... Read more >>

Sports Biomech (Sports biomechanics)
[2019, 18(1):75-87]

Cited: 0 times

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Sprint Start Kinetics of Amputee and Non-Amputee Sprinters.

Steffen Willwacher, Volker Herrmann, Kai Heinrich, Johannes Funken, Gerda Strutzenberger, Jan-Peter Goldmann, Björn Braunstein, Adam Brazil, Gareth Irwin, Wolfgang Potthast, Gert-Peter Brüggemann,

The purpose of this study was to explore the relationship between the forces applied to the starting blocks and the start performances (SPs) of amputee sprinters (ASs) and non-amputee sprinters (NASs). SPs of 154 male and female NASs (100-m personal records [PRs], 9.58-14.00 s) and 7 male ASs (3 unilateral ... Read more >>

PLoS One (PloS one)
[2016, 11(11):e0166219]

Cited: 14 times

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Lower extremity kinematics of athletics curve sprinting.

Tobias Alt, Kai Heinrich, Johannes Funken, Wolfgang Potthast,

Curve running requires the generation of centripetal force altering the movement pattern in comparison to the straight path run. The question arises which kinematic modulations emerge while bend sprinting at high velocities. It has been suggested that during curve sprints the legs fulfil different functions. A three-dimensional motion analysis (16 ... Read more >>

J Sports Sci (Journal of sports sciences)
[2015, 33(6):552-560]

Cited: 12 times

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Effect of carpometacarpal joint osteoarthritis, sex, and handedness on thumb in vivo kinematics.

Nina Hamann, Jörn Heidemann, Kai Heinrich, Han Wu, Judith Bleuel, Christiane Gonska, Gert-Peter Brüggemann,

<h4>Purpose</h4>To investigate the influence of trapeziometacarpal (TMC) osteoarthritis (OA) on the 3-dimensional motion capability of the TMC and thumb metacarpophalangeal (MCP) joints. In order to examine other factors affecting the thumb's motion kinematics, we further aimed to address the influence of sex and handedness on the motion capability of normal ... Read more >>

J Hand Surg Am (The Journal of hand surgery)
[2014, 39(11):2161-2167]

Cited: 1 time

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Stabilization effectiveness and functionality of different thumb orthoses in female patients with first carpometacarpal joint osteoarthritis.

Nina Hamann, Jörn Heidemann, Kai Heinrich, Han Wu, Judith Bleuel, Christiane Gonska, Gert-Peter Brüggemann,

<h4>Background</h4>Thumb orthoses have to reconcile and satisfy competing goals: stability and mobility. The purpose of the study was to characterize the stabilization effectiveness and functionality of different thumb carpometacarpal osteoarthritis orthoses.<h4>Methods</h4>Eighteen female carpometacarpal osteoarthritis subjects were included. Four orthoses were compared: BSN medical (BSN); Push braces (PUSH); Sporlastic (SPOR); and ... Read more >>

Clin Biomech (Bristol, Avon) (Clinical biomechanics (Bristol, Avon))
[2014, 29(10):1170-1176]

Cited: 8 times

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Do counteracting external frontal plane moments alter the intraarticular contact force distribution in the loaded human tibiofemoral joint?

Karsten Engel, Gert-Peter Brüggemann, Kai Heinrich, Wolfgang Potthast, Christian Liebau,

<h4>Background</h4>There are strong indications that asymmetric medio-lateral load distribution in the knee joint is a risk factor for osteoarthritis. Externally applied frontal plane moments (adduction and abduction) might affect the distribution of knee joint compartment loading. However, this is not confirmed through intraarticular measurements in loaded human knee joints. The ... Read more >>

Knee (The Knee)
[2015, 22(2):68-72]

Cited: 5 times

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The potential of toe flexor muscles to enhance performance.

Jan-Peter Goldmann, Maximilian Sanno, Steffen Willwacher, Kai Heinrich, Gert-Peter Brüggemann,

The metatarsal phalangeal joint (MPJ) and its crossing toe flexor muscles (TFM) represent the link between the large energy generating leg extensor muscles and the ground. The purpose of this study was to examine the functional adaptability of TFM to increased mechanical stimuli and the effects on walking, running and ... Read more >>

J Sports Sci (Journal of sports sciences)
[2013, 31(4):424-433]

Cited: 21 times

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