| Literature DB >> 32285747 |
Aidan P J Smyth1, Kimberley L Gammage1, Larkin Lamarche2, Cameron Muir3.
Abstract
Negative body image, which often results from social-evaluative body image threats, is common in young men and related to many harmful outcomes. Using social self-preservation theory (SSPT), the present study investigated the psychobiological (i.e., shame and cortisol) and behavioral (e.g., submission) response-recovery profile to a social-evaluative body image threat in university men. Participants (N = 69; Mage = 20.80 years, SD = 1.84) were randomly assigned to a high-threat (n = 34) or low-threat condition (n = 35). Men in the high-threat condition reported greater post-threat body shame, had greater post-threat cortisol levels, and exhibited more shame-relevant behaviors than men in the low-threat condition. There were no significant differences between conditions for body shame or cortisol at the final post-threat time point (after resting for 30 min). These findings are consistent with SSPT and suggest that men respond to, and recover from, body image threats relatively efficiently.Entities:
Keywords: Body image; behavioral responses; men; response-recovery profile; social self-preservation theory; social-evaluative threats
Mesh:
Year: 2020 PMID: 32285747 PMCID: PMC7158253 DOI: 10.1177/1557988320910831
Source DB: PubMed Journal: Am J Mens Health ISSN: 1557-9883
Descriptive Statistics by Condition.
| High threat ( | Low threat ( | |
|---|---|---|
| Variable | ||
| Age | 20.29 (1.85) | 21.28 (1.72) |
| Body fat percentage | 14.46 (6.87) | 11.20 (3.70) |
| BMI (kg/m2) | 26.03 (3.62) | 24.48 (2.63) |
| Height (m) | 1.76 (.06) | 1.80 (.05) |
| PA (MET min/week) | 2,327.06 (1,731.80) | 2,534.86 (1,667.21) |
| MBAS Muscularity | 3.33 (1.02) | 3.49 (.99) |
| Pre-threat body shame | .83 (.72) | .59 (.61) |
| S1: baseline cortisol (ng/ml) | 1.98 (1.27) | 2.19 (1.20) |
Note. BMI = body mass index (18.5–24.9 is considered normal); PA = moderate and vigorous physical activity; MET = measured in metabolic equivalent of task minutes per week; MBAS Muscularity = Male Body Attitudes Scale, muscularity subscale, ranges from 1 to 6; body shame ranges from 0 to 4.
p < .05.
ANCOVAs and Descriptive Statistics for Body Shame and Cortisol by Condition.
| Body shame | ||||
|---|---|---|---|---|
| High threat ( | Low threat ( | |||
| Variable |
|
| ||
| Post-threat BS 1 | .95 (.79) | .88 | .50 (.50) | .56 |
| Post-threat BS 2 | .71 (.74) | .64 | .41 (.51) | .48 |
| Cortisol | ||||
| High threat ( | Low threat ( | |||
| Variable |
|
| ||
| S2: Pre-threat | 1.74 (0.90) | 1.77 | 2.20 (0.86) | 2.17 |
| S3: Post-threat 1 | 2.07 (1.13) | 2.20 | 1.84 (0.95) | 1.72 |
| S4: Post-threat 2 | 2.24 (1.11) | 2.33 | 2.14 (1.08) | 2.05 |
| S5: Post-threat 3 | 1.99 (1.11) | 2.07 | 1.88 (0.96) | 1.80 |
| S3: % change | 30.31 (58.82) | –9.26 (51.90) | ||
| S4: % change | 58.95 (115.60) | 2.22 (47.71) | ||
| S5: % change | 34.02 (80.43) | –2.29 (67.90) | ||
Note. In the body shame analyses, analyses of covariance (ANCOVAs) controlled for trait muscularity concerns, physical activity, body fat percentage, and pre-threat body shame. In the cortisol analyses, ANCOVAs controlled for trait muscularity concerns, body fat percentage, and strength. EMM = estimated marginal mean; BS = body shame, ranges 0–4; cortisol measured in ng/ml; S# = sample number; % change = the percent change in cortisol from pre-threat (S2) levels.
p < .05.
Figure 1.Body shame by condition over time. This figure shows self-reported levels of body shame for the low-threat (red) and the high-threat (blue) conditions measured on a scale from 0 (low body shame) to 4 (high body shame) at the pre-threat, post-threat, and 30-min post-threat time points.
Figure 2a.Cortisol by condition across time. This figure shows cortisol values for the low-threat (red) and high-threat (blue) conditions measured in ng/ml for all five saliva samples. S# = sample number.
Figure 2bPercent change in cortisol by condition. This figure shows the percent change in cortisol from pre-threat to the first post-threat, second post-threat, and third post-threat time points for the low-threat (red) and high-threat (blue) conditions. S# = sample number.
t-tests and Descriptive Statistics for Shame Codes by Condition.
| High threat | Low threat | |
|---|---|---|
| Variable | ||
| Total shame | 8.54 (2.58) | 7.13 (1.78) |
| Head tilted | 2.06 (0.72) | 1.71 (0.48) |
| Shoulder slumped | 2.05 (0.60) | 1.70 (0.47) |
| Hands on face | 1.23 (0.69) | 0.96 (0.57) |
| Hiding face | 0.68 (0.53) | 0.53 (0.51) |
| Arms limp | 1.41 (0.60) | 1.30 (0.42) |
| Chest narrowed | 1.11 (0.56) | 0.93 (0.47) |
Note. Codes range from 0 (not at all present) to 5 (extreme intensity). Head tilted = head tilted forward/down; Shoulder slumped = shoulders slumped forward; Hands on face = moving hands to cover face or part of face; Hiding face = hiding face by moving face or head; Arms limp = one or both arms limp at sides; Chest narrowed = chest narrowed inward.
p < .05.