Nevalainen MT, Ciccotti MG, Morrison WB, Zoga AC, Roedl JB. Distal clavicular osteolysis in adults: association with bench pressing intensity.
Skeletal Radiol 2016;
45:1473-9. [PMID:
27550324 DOI:
10.1007/s00256-016-2446-z]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 07/20/2016] [Accepted: 07/24/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVES
To investigate the association between distal clavicular osteolysis (DCO) and bench pressing intensity.
METHODS
From a retrospective review of MRI shoulder reports of individuals between 20 and 40 years of age, 262 male patients with DCO and 227 age-matched male patients without DCO were selected. All patients had completed a bench pressing questionnaire. The patients' bench pressing frequency (times per week), duration (years of bench pressing), bench pressing weight (maximum bench pressing weight with one repetition = 1RM) and the ratio of bench pressing weight to body weight were compared between both groups using Chi-square and Mann-Whitney tests.
RESULTS
The results showed that 56 % (146/262) of patients with DCO were high-intensity bench pressers (1RM more than 1.5 times the body weight) compared to 6 % (14/227) in patients without DCO. High-intensity bench pressing was a risk factor for DCO (OR = 19; 95 %CI = 11-35; p < 0.001). Low-intensity bench pressing (1RM less than 1.5 times the body weight) was not a risk factor for DCO (OR = 0.6; 95 % CI = 0.4-0.8). High frequency (>1×/week) and duration (>5 years) of bench pressing were risk factors. In bench pressers who suffered from DCO, the mean 1RM was 283 lbs (±SD 57) compared to 209 lbs (±SD 60) in bench pressers not affected by DCO (p < 0.001, Mann-Whitney).
CONCLUSIONS
High-intensity, but not low-intensity bench pressing is a risk factor for DCO.
Collapse