Key takeaways
- Arm jiggle after 60 results from hormonal changes, muscle loss, and declining skin elasticity—three factors that exercises can partially address.
- Jacob Siwicki recommends performing wall exercises three times per week to build arm strength and improve appearance.
- While exercises build muscle underneath the arms, they cannot target specific fat loss or repair loose skin without a comprehensive approach to fitness and health.
- Strong arms make everyday tasks easier: carrying groceries, lifting items, opening doors, and rising from the floor become less difficult with consistent training.
Arm jiggle—the loose tissue that shakes and moves on the underside of your arm—affects many adults over 60. According to Eat This Not That’s consultation with fitness expert Jacob Siwicki, this occurs because of three concurrent changes in the aging body: hormonal fluctuations, the steady loss of lean muscle mass, and declining skin elasticity. Together, these factors create the appearance and texture of looseness that strengthening exercises can begin to address.
Understanding Arm Jiggle After 60
Hormonal Shifts and Body Composition
As your body ages, hormonal changes alter how you store and maintain fat and muscle. These shifts contribute to the softening and loose appearance in the underarms, independent of overall weight or fitness level.
Loss of Lean Muscle Mass
Muscle naturally declines with age. The muscles underneath your arms atrophy without regular strength work, leaving the overlying skin with less support and definition.
Declining Skin Elasticity
Skin loses collagen and elastin as you age, reducing its ability to bounce back and firm up. This loss of elasticity affects the texture and tightness of skin everywhere on the body, but loose arm skin is particularly visible during daily movement.
Why Arm Strength Matters for Daily Life
Jacob Siwicki, founder and head coach of Siwicki Fitness, NCSF and AFAA certified, points to the functional impact of strong arms. A former top 1% globally ranked Equinox group fitness instructor in 2019 and fitness expert on FOX 5 DC, Siwicki emphasizes that strength transforms what feels possible in everyday tasks.
Carrying, Lifting, and Reaching
Groceries become lighter. Lifting something onto a shelf, whether dishware, books, or storage, requires less strain. These tasks feel effortless when your arms have the underlying muscle to support them.
Opening Doors and Rising from the Floor
Pushing open a heavy door becomes manageable. Getting up from the floor, a move many adults over 60 find challenging, becomes achievable with adequate arm strength supporting your upward press.
The Compound Effect
Siwicki says plainly: “Strong arms make everyday life easier. Carrying groceries. Pushing open a heavy door. Lifting something onto a shelf. Even getting up from the floor. Honestly, everything gets easier when you’re stronger.” This compound effect shows why targeted arm training matters so much, since strength in one area ripples through multiple daily activities.
What Wall Exercises Can and Cannot Do
Siwicki explains that exercises can build the muscles underneath the arms and contribute to a firmer appearance. However, he is explicit about limitations: exercises cannot choose exactly where your body fat is shed, and they cannot change loose or crepey skin on their own. Improving the appearance of loose arm tissue requires a full approach that extends to skin health and overall body composition, not just muscle work in isolation.
Training Frequency for Results
Siwicki recommends performing wall exercises three times per week. This frequency allows muscles to adapt and strengthen while providing adequate recovery between sessions. Consistency applied over weeks and months is where sustainable change emerges.
About Jacob Siwicki
Siwicki brings substantial credentials to his recommendations. He holds NCSF and AFAA certifications and achieved a top 1% ranking among global Equinox group fitness instructors in 2019. He has appeared as a fitness expert on FOX 5 DC. A Dartmouth College graduate with a degree in economics, Siwicki also played football at Dartmouth, experiences that shaped his approach to fitness coaching and strength science.
Source: Eat This Not That
Frequently Asked Questions
What causes arm jiggle after 60?
Arm jiggle results from hormonal shifts, loss of lean muscle mass, and declining skin elasticity. These changes reduce muscle support under the arm and reduce skin firmness.
How often should I do wall exercises?
Jacob Siwicki recommends performing wall exercises three times per week to allow muscles to adapt and recover between sessions.
Can wall exercises alone fix loose arm skin?
Exercises can build the muscles underneath the arms and contribute to a firmer appearance, but they cannot target specific body fat loss or change loose skin on their own, according to Siwicki. Improving arm appearance requires a full approach that addresses overall fitness and skin health.
