Fitness Influencers. Impact on Purchase Intentions and Attitudes of Instagram Users

Table of Contents

1. Introduction

1.1 Relevance, research questions and objectives

1.2 Course of investigation

2. Conceptual framework: influencer marketing

2.1 Origins, goals and classification in the scientific context

2.2 Types of digital influencers

2.3 Social media platforms

2.3.1 Blogs and micro blogs

2.3.2 Online forums and communities

2.3.3 Social networking sites

2.3.4 Media sharing platforms

2.3.4.1 General information

2.3.4.2 Instagram

2.4 Success factors and limitations of influencer marketing

2.4.1 Overview of success factors and limitations

2.4.2 Influencer-/brand fit

3. Digital fitness influencers in Germany

3.1 German fitness industry

3.2 German fitness influencers on Instagram

4. Purchase decision process and advertising impact of influencer marketing in the German fitness industry

4.1 Influencing factors on purchase behavior

4.1.1 S-O-R-model overview

4.1.2 Promotional posts on Instagram as stimuli

4.1.3 Reference groups

4.1.4 Attitudes

4.2 Purchase decision process

4.2.1 Phases of purchase decision processes

4.2.2 Purchase intention

4.3 Advertising impact

4.3.1 Model overview

4.3.2 Measuring advertising impact: attitudes and purchase intention

5. Empirical analysis

5.1 Objectives and research methodology

5.2 Operationalization of constructs

5.3 Results

5.4 Discussion

6. Recommendations and further steps

7. Summary and outlook

Objectives and Topics

This master thesis aims to empirically investigate the impact of the perceived fit between digital fitness influencers and the brands they promote on the attitudes and purchase intentions of Instagram users. By applying an experimental design, the study explores how influencer-brand congruency affects key constructs such as source credibility, source trustworthiness, attitude toward the advertisement, and attitude toward the brand, ultimately influencing purchase intentions within the German fitness market.

• Influencer marketing and the strategic relevance of "fit"
• The role of Instagram in the German fitness industry
• Mechanisms of consumer behavior (S-O-R-model) in an online context
• Empirical assessment of influencer-brand congruence on advertising effectiveness

Excerpt from the Book

Summary of Chapters

1. Introduction: This chapter introduces the context of the marketing landscape transition to web 2.0 and social media, establishing the research question regarding the impact of influencer-brand fit on consumer behavior.

2. Conceptual framework: influencer marketing: It provides a theoretical overview of influencer marketing, defining types of influencers, the role of social media platforms, and identifying success factors like influencer-brand fit.

3. Digital fitness influencers in Germany: This section presents the German fitness sector and describes the significant role of Instagram as the primary platform for fitness influencers to reach young, health-conscious audiences.

4. Purchase decision process and advertising impact of influencer marketing in the German fitness industry: It outlines the theoretical models of purchase behavior, specifically using the S-O-R-framework to explain how promotional posts act as stimuli to influence target consumers.

5. Empirical analysis: This chapter details the experimental study, including research objectives, variable operationalization, and the quantitative analysis of data collected from users in online fitness communities.

6. Recommendations and further steps: It offers managerial and theoretical implications, suggesting that influencer-brand fit is a critical driver for advertising effectiveness that requires long-term commitment.

7. Summary and outlook: This final chapter synthesizes the main findings, confirms the hypotheses regarding the impact of fit on attitudes and purchase intentions, and suggests future research directions, such as virtual reality integration.

Keywords

influencer marketing, digital influencers, fitness, Instagram, influencer-brand fit, attitudes, electronic word-of-mouth, purchase intention, advertising impact, social media, consumer behavior, S-O-R-model, source credibility, source trustworthiness, brand influence

Frequently Asked Questions

What is the core focus of this thesis?

The work investigates whether the perceived fit between digital fitness influencers and the brands they promote on Instagram has a measurable impact on the attitudes and purchase intentions of their followers.

Which thematic fields are central to the study?

The central thematic fields include influencer marketing, digital communication, consumer psychology in the fitness industry, and the mechanics of purchase decision-making on social media.

What is the primary objective of the research?

The primary objective is to fill a research gap regarding the impact of "influencer-brand fit" within the German fitness sector, moving beyond general assumptions toward empirical evidence.

Which scientific methodology was applied?

The author conducted an experimental study using two independent online surveys (high-fit vs. low-fit conditions) with 219 participants, analyzing the data via unpaired two-sided t-tests using SPSS.

What is the main topic of the work's core (the main sections)?

The main part synthesizes existing literature into a conceptual influencer marketing framework, details current practices in the German fitness market, develops a research model based on the S-O-R-approach, and performs an empirical validation.

Which keywords characterize this work?

Key terms include influencer marketing, digital influencers, Instagram, influencer-brand fit, source credibility, source trustworthiness, attitude toward the ad, purchase intention, and advertising impact.

How does a "high fit" between an influencer and a brand affect perceived source credibility?

The empirical results verify that a high perceived influencer-brand fit lead to significantly more positive ratings for source credibility and trustworthiness compared to a low fit.

Does the level of fit impact actual purchase intentions?

Yes, the study confirmed that participants exposed to content with a high influencer-brand fit exhibited significantly higher purchase intentions than those exposed to content with a low fit.

What were the main constraints of the study?

Limitations include the focus on only one example per fit-level to prevent bias, the specialization on the German fitness industry, and the challenge of collecting data specifically from existing followers of the influencers.