Int J Sports Med 2011; 32(11): 819-821
DOI: 10.1055/s-0031-1287829
© Georg Thieme Verlag KG Stuttgart · New York

Update – Ethical Standards in Sport and Exercise Science Research

D. J. Harriss
G. Atkinson
Further Information


D. J. Harriss
Research Institute for Sport and Exercise Sciences
Henry Cotton Campus
Liverpool John Moores University
Webster Street
Liverpool L3 2ET
United Kingdom
Phone: +44/15/1904 6236   
Fax: +44/15/1207 3224   

Publication History

Publication Date:
07 November 2011 (online)


For research that involves human participants or animals to be published in the International Journal of Sports Medicine (IJSM), it must have been conducted in accordance with recognised ethical standards and national/international laws. Authors are required to confirm that these standards and laws have been adhered to by formally citing this editorial within the methods section of their own manuscript. In the IJSM editorial, Ethical Standards in Sport and Exercise Science Research [4], published in 2009, we outlined the principles of the World Medical Association Declaration of Helsinki [2] and the Institute for Laboratory Animal Research of the National Research Council’s Guide for the Care and Use of Laboratory Animals [6]. We also highlighted the ethical issues that are incorporated into national/international laws and provided specific guidance on ethical issues which commonly arise in Sports Medicine research. These principles and issues are reproduced below from the 2009 IJSM Editorial [4]. However, we have also now updated this information in order to:

  • Specifically recognise the ethical principles of professional associations and treaties when conducting research involving human participants.

  • Provide specific information on key ethical issues in research involving human participants, which were briefly covered in the original IJSM editorial [4].

  • Include information on the eighth edition of the Guide for the Care and Use of Laboratory Animals [7], published in 2010.

  • Highlight the importance of optimum statistical power for human and animal research in sports medicine.

Research Using Human Participants

Authors who cite this editorial confirm that research using human participants has been conducted ethically according to the principles of the Declaration of Helsinki. The Declaration is intended to be read as a whole and every principle is equally important, but those points most-commonly considered by sport and exercise scientists are summarised below.

  1. Basic principles. Respect the rights and welfare of participants which must take precedence over all other interests.

  2. Ethical review. Before research begins and before amendments are applied, research must be reviewed and approved by an appropriate ethics committee.

  3. The research protocol. The study, research design and statistical analysis must be clearly described, justifiable and appropriate. In drawing up the research protocol, the researcher must;

    • consider ethical issues in accordance with the Declaration of Helsinki,

    • provide information regarding funding, sponsors, institutional affiliations, other potential conflicts of interest,

    • consider the contribution to new knowledge and consider the environment,

    • include details of any incentives for participants and provisions for treating and/or compensating participants who are harmed as a consequence of participation in the research study,

    • describe the arrangements for post-study access by all participants to interventions identified as beneficial in the study or access to other appropriate care or benefits.

  4. Consent Informed consent/assent should be provided freely by the participant and should ideally be in writing. If written consent/assent cannot be obtained, or is not appropriate, then oral consent/assent should be formally documented and witnessed. Research that involves children or other populations that cannot consent (e. g. vulnerable populations) should seek consent from an appropriate person and assent from the participant. Research involving participants who are physically or mentally incapable of giving consent may be undertaken only if the physical or mental condition that prevents giving informed consent is a necessary characteristic of the research population. Informed consent/assent must include the;

    • aims of the research,

    • methods,

    • sources of funding,

    • conflicts of interest,

    • institutional affiliations,

    • Anticipated benefits and potential risks,

    • potential discomfort and

    • right to refuse to participate or withdraw consent without reprisal.

  5. Conduct. Research must be conducted;

    • in accordance with appropriate risk management,

    • by appropriately qualified researchers and support staff,

    • with skill and care and

    • in an appropriate setting.

    • in order to protect the privacy of participants and confidentiality of their personal information and

    • in accordance with laws and regulations of the country or countries in which the research is to be performed as well as international norms and standards. Specific laws relevant to research ethical may regulate the collection, use and/or storage of human tissue; the protection of individuals that lack the capacity to consent; data protection; and the use of drugs in research.

  6. Governance. Serious adverse events occurring during the study must be reported to the ethics committee that ethically reviewed and approved the research.


Authors may conduct their research in accordance with principles detailed by professional associations and treaties other than the World Medical Association Declaration of Helsinki such as the International Sociological Association’s (ISA) Code of Ethics [9]. This update recognises that differences in ethical principles may exist between professional associations. For example, the ISA’s code of Ethics states that “The consent of research subjects and informants should be obtained in advance. Covert research should be avoided in principle, unless it is the only method by which information can be gathered, and/or when access to the usual sources of information is obstructed by those in power.” [9]. Suggesting that consent in sociological research is less stringent than in experimental research [5]. Authors are required to confirm whether aspects of their research abides by ethical principles proclaimed by professional associations or treaties that differ in status to the Declaration of Helsinki.



By citing this editorial the author confirms the following [5]:

  • Consent to participation was valid, such that the participants were provided with adequate information, the consent was given voluntarily and that those providing consent were competent to do so.

  • If research was carried out on participants who were vulnerable or not competent to give consent then the authors confirm that the participants were appropriately identified, there was justification for carrying out the research on these individuals and additional measures were put in place to ensure the research was ethical.

  • Issues of privacy and confidentiality have been considered beyond what is legally required. Where “privacy is the protection of control over information about oneself; control over access to oneself, both physically and mentally; and control over one’s ability to make important decisions about family and lifestyle in order to be self expressive and to develop varied relationships” [5]. And confidentiality is when the “participant discloses to the researcher information which the participant regards as confidential or secret [default assumption]; and the researcher undertakes (implicitly or explicitly) not to reveal this information to anyone who does not already possess it.” [5].

  • Researchers have considered their legal and ethical obligations to breach privacy and confidentiality.

  • If information provided confidentially as part of a research study has been used for other purposes that confidentiality has been preserved by anonymising the information or by seeking the participant’s consent.

  • Risks relating to harm, inconvenience, time and money and benefits to the participant, to other individuals, to the researchers and organisations have been considered, balanced, communicated to the participants and appropriately managed when relevant.

  • Participants have not been exploited and particular groups discriminated from participating in the research.

  • There are appropriate governance arrangements and structures in place if participants are asked to donate biological material for use in future research, such as a biobank. This should involve appropriate consideration of broad consent, privacy and confidentiality, feedback to the participant of incidental findings, storage of material, commercial involvement, donor involvement and intellectual property rights.


Research Involving Animals

Authors who cite this editorial confirm that research involving animals has been conducted ethically according to the principles of the Guide for the Care and Use of Laboratory Animals of the Institute for Laboratory Animal Research [6]. Again, the guide is intended to be read as a whole, but the basic obligations on the researcher are summarised below. The researcher must;

  1. Ensure the appropriateness of experimental methods.

  2. Legally acquire animals.

  3. Ensure that animals are properly housed and fed to ensure safe, hygienic and comfortable living conditions.

  4. Maintain a record of animal care.

  5. Ensure that animal maintenance and research are carried out by qualified personnel, following all legal statutes and regulations.

  6. Administer appropriate pain management to minimize suffering, discomfort and pain.


The eighth edition of the Guide for the Care and Use of Laboratory Animals [7], published in 2010, includes expanded coverage of the ethics of laboratory animal use; components of effective Animal Care and Use Programs; and new guidelines for the housing, environment, and enrichment of terrestrial and aquatic animals, and for veterinary and clinical care [8]. Specifically:

  • The core foundation of the guide – replacement, refinement, and reduction.

  • An Animal Care and Use Program.

  • The performance standards approach for animal care and care practices.

  • The care and use of fish and other aquatic species.

  • Housing space and enclosures for animals’ social needs.

  • Environmental enrichment got the enhancement of animal well-being to provide sensory and motor stimulation and promote psychological health.

  • Discussion of animal biosecurity practices.

    There is evidence that a significant proportion of biomedical research on animals does not meet basic standards of reporting, especially with respect to research design and data analysis [3]. For example Festing [3] listed the most common oversights in animal research, including not communicating how many animals were studied, not stating the objective of the study, not using randomisation or blinding and not citing full details of methods and a measure of error in the data description. Authors are advised to ensure that such information is present in their studies. It is unethical to withhold such information.


Specific Issues Relevant to Sports Medicine

  1. Retrospective ethics. Data are routinely collected from individuals for various purposes. For example, sport scientists may monitor physiological function of an athlete in order for him or her to gain an edge over their rivals. Data collected exclusively for one purpose cannot be used for another purpose (research) unless consent for the use in research is subsequently given and the research ethically approved. An exception to this would be where the data collected for the primary purpose is anonymised prior to use in a research study (second purpose) which has ethical approval. Retrospective ethical approval cannot be granted for any research study.

  2. The use of placebo. The inclusion of a placebo group in a research study may challenge the principle of equipoise. Ideally, participants should be randomly assigned to experimental or placebo groups. In healthy volunteers, where possible, the type of treatment should be blinded, for example, comparator (control) participants could be given a fitness or lifestyle information sheet. After a finite length of time those participants in the comparator group could be offered the experimental condition, or an experiment could be halted if at any point it became clear that the placebo group was fairing more poorly [11]. In more medical research where participants are patients or clients extreme care must be taken to avoid the abuse of placebo. In this type of research, the use of placebo is acceptable when no current proven intervention exists, or when the participant will not be at risk of serious or irreversible harm.

  3. Deception. The use of deception in research (e. g. in a pacing strategy study in which time trial distance is deceived) must be merited such that there are no reasonable alternatives for obtaining the data, as long as there is no reasonable expectation to cause pain or severe emotional distress. If deception is to be used, then the participants must be accurately informed of the risks and be debriefed at the conclusion of the study with the option to withdraw their data [12].

  4. Good research practice. The UK Medical Research Council has outlined some basic principles of good research practice which may help to ensure that research is conducted ethically. These include planning, conduct, recording data, reporting results, applying the results [10]. Relevant issues not specifically raised in the Declaration of Helsinki include the use, calibration and maintenance of equipment, COSHH, documentation of standard operating procedures, retention of data, publication policy, authorship, correction of errors and retraction of published findings and intellectual property rights.


Update: Statistical Power and Ethics

Although there are currently debates regarding which is the most unethical of the following 2 scenarios [1], it is agreed that both underpowered and overpowered studies can be unethical. An obviously underpowered study means that participants have been administered possibly invasive and time-consuming interventions and measurements with little chance of these efforts being worthwhile in furthering the knowledge base or improving human health or performance. An overpowered study could lead to a significant proportion of participants also undertaking possibly arduous protocols and interventions unnecessarily. Therefore, we ask all authors to consider statistical power in their study design and discussion of study inferences.

Ideally, a formal estimation of sample size based on statistical power should be reported. For studies in which an inference could not be made with reasonable certainty, authors should discuss the impact of statistical power in terms of the likelihood of a type II ‘false negative’ inference being made. It is noted that sample size is not the only aspect of research which influences statistical power. Authors are, for example, also asked to consider the reliability of their measurement tools and protocols. Also, it is recognised that if an author demonstrates that a study effect is statistically and practically significant, it is probably inappropriate for a reviewer to criticise their study on the basis of a perceived small sample size per se. We also ask authors to report confidence limits for their primary study outcome in order for readers to judge practical significance. A study which is adequately powered for statistical significance yet is underpowered for reliable judgements regarding practical/clinical significance may be unethical.



D. J. Harriss
Research Institute for Sport and Exercise Sciences
Henry Cotton Campus
Liverpool John Moores University
Webster Street
Liverpool L3 2ET
United Kingdom
Phone: +44/15/1904 6236   
Fax: +44/15/1207 3224