CoChat
Sign Up
Cited by 21Muscle activation and electromyography studiesSpaceflight effects on biologyMotor Control and Adaptation

Bouncing on Mars and the Moon - The role of gravity on neuromuscular control: correlation of muscle activity and rate of force development

Ritzmann, Ramona, Freyler, Kathrin, Krause, Anne, Gollhofer, Albert·2016·Journal of Applied Physiology
DOI 10.1152/japplphysiol.00692.2016
Open this paper in CoChat — free account

Abstract

On our astronomical neighbors Mars and the Moon, bouncing movements are the preferred locomotor techniques. During bouncing, the stretch-shortening cycle describes the muscular activation pattern. This study aimed to identify gravity-dependent changes in kinematic and neuromuscular characteristics in the stretch-shortening cycle. Hence, neuromuscular control of limb muscles as well as correlations between the muscles’ pre-activation, reflex components, and force output were assessed in lunar, Martian, and Earth gravity. During parabolic flights, peak force (Fmax), ground-contact-time, rate of force development (RFD), height, and impulse were measured. Electromyographic (EMG) activities in the m. soleus (SOL) and gastrocnemius medialis (GM) were assessed before (PRE) and during bounces for the reflex phases short-, medium-, and long-latency response (SLR, MLR, LLR). With gradually decreasing gravitation, Fmax, RFD, and impulse were reduced, whereas ground-contact time and height increased. Concomitantly, EMG_GM decreased for PRE, SLR, MLR, and LLR, and in EMG_SOL in SLR, MLR, and LLR. For SLR and MLR, Fmaxand RFD were positively correlated to EMG_SOL. For PRE and LLR, RFD and Fmaxwere positively correlated to EMG_GM. Findings emphasize that biomechanically relevant kinematic adaptations in response to gravity variation were accompanied by muscle- and phase-specific modulations in neural control. Gravitational variation is anticipated and compensated for by gravity-adjusted muscle activities. Importantly, the pre-activation and reflex phases were differently affected: in SLR and MLR, SOL is assumed to contribute to the decline in force output with a decreasing load, and, complementary in PRE and LLR, GM seems to be of major importance for force generation.

Integrity signals

Registry

Crossref · 10.1152/japplphysiol.00692.2016

Cites

60 of 60 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Ritzmann et al. (2016) showed a reduction of peak vertical GRF, rate of force development and vertical impulse with decreasing gravity.

    “Their results show a reduction of peak vertical GRF, rate of force development and vertical impulse with decreasing gravity (Ritzmann et al., 2016).”

    From Human Biomechanical and Cardiopulmonary Responses to Partial Gravity – A Systematic Review (2017) · cites this paper as Ritzmann et al., 2016

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Related

Authors
Ritzmann, R., Freyler, K., Krause, A., & Gollhofer, A.
Affiliations
University of Freiburg (DE)
Corresponding author
Ritzmann, Ramona
ORCID
Venue
Journal of Applied Physiology
Publisher
American Physiological Society
Published
2016-11-01
Volume
121
Issue
5
Pages
1187-1195
ISSN
  • 0161-7567 (ISSN-L)
  • 8750-7587
  • 1522-1601
DOI
10.1152/japplphysiol.00692.2016
OpenAlex
W2425083935
Cited by
21
References
60
Citations by year
2025: 2 · 2023: 2 · 2022: 2 · 2021: 5 · 2020: 2 · 2019: 4 · 2017: 4
FWCI
1.28
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
German Aerospace Center (DLR) (50WB1120)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
  • Health Sciences › Medicine › Physiology › Spaceflight effects on biology
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
Keywords
gravity adaptation, neuromuscular control, stretch-shortening cycle, rate of force development, soleus muscle, medial gastrocnemius, parabolic flight, lunar gravity, Martian gravity, jumping kinematics, ground contact time, impulse, muscle force production
MeSH terms
Adult, Electromyography, Postural Balance, Female, Gravitation, H-Reflex, Humans, Locomotion, Male, Movement, Reaction Time, Reflex, Stretch, Moon, Muscle, Skeletal, Mars

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review